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Debre Markos University offers a Browse by Title feature within its Institutional Research Repository System that enables users to easily find and access academic research outputs by their titles. This feature organizes theses, dissertations, and other scholarly works alphabetically or by keyword in the title, allowing researchers, students, and the community to quickly locate specific documents when they know all or part of a title. By focusing on titles, users can efficiently explore the repositorys collection and discover relevant research materials without needing to search by author or department.


Search Results (221 found)
The effects of seedling transplanting on growth and yield performance of maize (Zea mays L.) for climate change resilience in Burie District, Northwestern Ethiopia

Habtamu Yigermal  1 , Kelemu Nakachew  2 , Fenta Assefa  3 (2024-04-12)

College of Agriculture and Natural resources Horticulture
Abstract Preview:
Maize is produced throughout the world and it is also a pri-mary staple food crop in many developing countries. Thefield experiment was conducted during the main rainy sea-son of 2018 in Burie district to study the effects of types andgrowth stages of seedlings on the growth and yield of trans-planted maize (Zea mays L.). Factorial combinations of twotypes of seedlings (bare rooted and poly bagged); five lev-els of seedling’s growth stages (seedlings of 1, 2, 3, 4, and5 true leaf/ves) and one control (direct seeded) were laiddown in randomized complete block design with three repli-cations. Data on phenological, vegetative growth and yield-related parameters were collected following standard meth-ods and procedures. All data were subjected to analysis ofvariance using SAS software, and mean separation for sig-nificant treatments was done by LSD. Both main effects af-fected the number of grains cob−1 , grain, and stover yieldhighly significantly and days to 50% silking very highly signif-
icantly. Types of seedlings affected days to 50% tasselling sig-nificantly; and days to 90% physiological maturity and plantheight highly significantly. In addition, types of seedlingsaffected the number of cobs plant−1 , cob length, numberof grains row−1 and biomass yield, very highly significantly.Seedlings’ growth stages had a very highly significant effecton days to 50% tasseling and days to 90% physiological ma-turity. The number of cobs plant−1 , cob length, number ofgrains row−1 and biomass yield were also highly significantlyaffected by seedlings’ growth stages. The interaction effectwas highly significant on the number of cobs plant−1 , grain,and stover yield and very highly significant on the harvest in-dex. The highest (10.7t ha−1 ) grain yield of maize was foundfrom the transplantation of polybagged seedlings at four trueleaf stages. Although it is difficult to conclude based on oneseason and one location research trial, transplanting of poly-bagged seedlings at four true leaf stages gave superior grainyield. This treatment combination also gave the highest netbenefit with an acceptable range of marginal rate of return.Therefore, transplanting polybagged seedlings at four trueleaf stages is economically feasible and can be recommendedtentatively for Burie District. However; it’s also advised to re-peat the study in areas having terminal moisture stress formaize production.
Keywords: Bare root, Growth stage, Polybagged, Seedling, Transplanting
Full Abstract:
Maize is produced throughout the world and it is also a pri-mary staple food crop in many developing countries. Thefield experiment was conducted during the main rainy sea-son of 2018 in Burie district to study the effects of types andgrowth stages of seedlings on the growth and yield of trans-planted maize (Zea mays L.). Factorial combinations of twotypes of seedlings (bare rooted and poly bagged); five lev-els of seedling’s growth stages (seedlings of 1, 2, 3, 4, and5 true leaf/ves) and one control (direct seeded) were laiddown in randomized complete block design with three repli-cations. Data on phenological, vegetative growth and yield-related parameters were collected following standard meth-ods and procedures. All data were subjected to analysis ofvariance using SAS software, and mean separation for sig-nificant treatments was done by LSD. Both main effects af-fected the number of grains cob−1 , grain, and stover yieldhighly significantly and days to 50% silking very highly signif-
icantly. Types of seedlings affected days to 50% tasselling sig-nificantly; and days to 90% physiological maturity and plantheight highly significantly. In addition, types of seedlingsaffected the number of cobs plant−1 , cob length, numberof grains row−1 and biomass yield, very highly significantly.Seedlings’ growth stages had a very highly significant effecton days to 50% tasseling and days to 90% physiological ma-turity. The number of cobs plant−1 , cob length, number ofgrains row−1 and biomass yield were also highly significantlyaffected by seedlings’ growth stages. The interaction effectwas highly significant on the number of cobs plant−1 , grain,and stover yield and very highly significant on the harvest in-dex. The highest (10.7t ha−1 ) grain yield of maize was foundfrom the transplantation of polybagged seedlings at four trueleaf stages. Although it is difficult to conclude based on oneseason and one location research trial, transplanting of poly-bagged seedlings at four true leaf stages gave superior grainyield. This treatment combination also gave the highest netbenefit with an acceptable range of marginal rate of return.Therefore, transplanting polybagged seedlings at four trueleaf stages is economically feasible and can be recommendedtentatively for Burie District. However; it’s also advised to re-peat the study in areas having terminal moisture stress formaize production.
Keywords: Bare root, Growth stage, Polybagged, Seedling, Transplanting
View/Open
Seasonality, balance and copying mechanisms of livestock feed in Northwestern Ethiopia

Alemu Gashe Desta (2024-04-12)

College of Agriculture and Natural resources Animal Science
Abstract Preview:
This study aimed to determine the seasonality, feed balance, and copying mechanisms oflivestock feed in the east Gojjam Zone of northwestern ethiopia. to collect the data, the zonedivided into three agroecologies (lowland, midland, and highland) and randomly selected twodistricts from each agroecology to represent appropriate agroecologies. the study involved540 respondents – 45 from each peasant association – and utilized key informant interviews,focus groups, questionnaires, and direct observations for data collection. According to thefindings, the study reveals that feed availability in all agroecologies fluctuates seasonally. thetotal dry matter and crude protein supplies per household per year in highland, midland, andlowland agroecologies were 8.69, 15.49, and 14.94 tons, and 0.05, 0.91, and 0.90 tons,respectively. the yearly dry matter and crude protein requirements for livestock in highland,midland, and lowland agroecologies were 11.9, 22.2, and 19.5 t/hh/yr, and 1.4, 2.6, and 2.5 t/hh/yr, respectively. the total amounts of dry matter and crude protein produced in the studyareas satisfied only 73.3, 69.7, and 76.6%, and 32.1, 35.5, and 36.3% of the livestockrequirements in the highland, midland, and lowland agroecologies, respectively. Producers inthe study areas employ strategies such as purchasing feed, preserving crop residue, andreducing herd sizes to address livestock shortages of dry matter and crude protein. to addressthe issue, a new strategy should be employed, including managing natural pastures, increasingforage crop cultivation, providing protein-rich feed, and improving crop residue quality usingeffective microorganisms.
Full Abstract:
This study aimed to determine the seasonality, feed balance, and copying mechanisms oflivestock feed in the east Gojjam Zone of northwestern ethiopia. to collect the data, the zonedivided into three agroecologies (lowland, midland, and highland) and randomly selected twodistricts from each agroecology to represent appropriate agroecologies. the study involved540 respondents – 45 from each peasant association – and utilized key informant interviews,focus groups, questionnaires, and direct observations for data collection. According to thefindings, the study reveals that feed availability in all agroecologies fluctuates seasonally. thetotal dry matter and crude protein supplies per household per year in highland, midland, andlowland agroecologies were 8.69, 15.49, and 14.94 tons, and 0.05, 0.91, and 0.90 tons,respectively. the yearly dry matter and crude protein requirements for livestock in highland,midland, and lowland agroecologies were 11.9, 22.2, and 19.5 t/hh/yr, and 1.4, 2.6, and 2.5 t/hh/yr, respectively. the total amounts of dry matter and crude protein produced in the studyareas satisfied only 73.3, 69.7, and 76.6%, and 32.1, 35.5, and 36.3% of the livestockrequirements in the highland, midland, and lowland agroecologies, respectively. Producers inthe study areas employ strategies such as purchasing feed, preserving crop residue, andreducing herd sizes to address livestock shortages of dry matter and crude protein. to addressthe issue, a new strategy should be employed, including managing natural pastures, increasingforage crop cultivation, providing protein-rich feed, and improving crop residue quality usingeffective microorganisms.
View/Open
Neo-colonialism: a discussion of USA activities in the Horn of Africa

Yalemzewd Dessie Tegegne (2024-04-10)

College of Social Science and Humanities History and Heritage Managment
Abstract Preview:
Neo-colonialism is considered by many writers to be a strategy of the former colonialpowers and the new superpowers to implement various socioeconomic and politicalstrategies in developing countries. the Horn of africa, as a parcel of a developingregion, is recognized as a piece of the ‘grand chessboard’ of world geopolitics. inparticular, Us neo-colonialism has become an invisible government in almost allcountries in the Horn of africa. therefore, the main objective of this paper is to examineand write about the origin, discourses, concealment (mask), normative agents, andpotential perils of american neo-colonialism in the Horn of africa. indeed, the paperalso answers the question of whether the Us is a straightforward ally or a neo-colonialistin the Horn of africa. to document this, the paper would be limited to primary sourcessuch as letters, reports, and published secondary texts that have been available to thiswriter to date.
EYWORDS: Neocolonialism; Us concealment; Horn of africa; normative agents
Full Abstract:
Neo-colonialism is considered by many writers to be a strategy of the former colonialpowers and the new superpowers to implement various socioeconomic and politicalstrategies in developing countries. the Horn of africa, as a parcel of a developingregion, is recognized as a piece of the ‘grand chessboard’ of world geopolitics. inparticular, Us neo-colonialism has become an invisible government in almost allcountries in the Horn of africa. therefore, the main objective of this paper is to examineand write about the origin, discourses, concealment (mask), normative agents, andpotential perils of american neo-colonialism in the Horn of africa. indeed, the paperalso answers the question of whether the Us is a straightforward ally or a neo-colonialistin the Horn of africa. to document this, the paper would be limited to primary sourcessuch as letters, reports, and published secondary texts that have been available to thiswriter to date.
EYWORDS: Neocolonialism; Us concealment; Horn of africa; normative agents
View/Open
Molecular Detection and Antibiogram of Shiga toxin-producing Escherichia coli (STEC) from raw milk in and around Bahir Dar town dairy farms, Ethiopia

Fanuel Bizuayehu Yihunie, Mequanint Addisu Belete, Gizachew Fentahun, Teshager Dubie  (2024-04-03)

College of Agriculture and Natural resources Veterinary laboratory Technology
Abstract Preview:
Illnesses associated with consuming infected milk and milk products are a widespread problem inlow and middle-income countries. Shiga toxin-producing Escherichia coli (STEC) is a bacteriumcommonly found in raw milk and causes foodborne diseases ranging from mild diarrhea to severehemorrhagic colitis and hemolytic uremic syndrome. This study aimed to investigate the viru-lence gene and antimicrobial resistance profiles of Shiga toxin-producing E. coli strains isolatedfrom raw milk in dairy farms in and around Bahir Dar town. Raw milk samples (n = 128)collected from December 2021 to July 2022 were cultured, and E. coli strains were isolated usingstandard methods. Shiga toxin-producing E. coli strains were identified genotypically by thepresence of the virulence markers using a single-plex polymerase chain reaction. The antibioticsusceptibility testing of Shiga toxin-producing E. coli isolates was done by the agar disk diffusionmethod. In total, 32 E. coli isolates were recovered from milk samples from lactating animals. PCRscreening of these isolates resulted in 19 (59.3%) positives for Shiga toxin-producing E. coli. Thestx2 gene was detected in 53% of cases, followed by stx1 (31%) and eae (16%. The STEC isolateswere highly sensitive to ciprofloxacin (94.7%) and kanamycin (89.5%), while exhibiting signif-icant resistance to amoxicillin (89.5%) and streptomycin (73.7%). The present study points outthe occurrence of virulent and antibiotic-resistant Shiga toxin-producing E. coli strains in raw milkthat could pose a potential risk to public health. Further analysis by whole genome sequencing isnecessary for an in-depth assessment and understanding of their virulence and resistance factors.Moreover, large-scale studies are needed to identify the prevalence and potential risk factors andto prevent the spread of antibiotic-resistant STEC strains in the milk production chain.
Full Abstract:
Illnesses associated with consuming infected milk and milk products are a widespread problem inlow and middle-income countries. Shiga toxin-producing Escherichia coli (STEC) is a bacteriumcommonly found in raw milk and causes foodborne diseases ranging from mild diarrhea to severehemorrhagic colitis and hemolytic uremic syndrome. This study aimed to investigate the viru-lence gene and antimicrobial resistance profiles of Shiga toxin-producing E. coli strains isolatedfrom raw milk in dairy farms in and around Bahir Dar town. Raw milk samples (n = 128)collected from December 2021 to July 2022 were cultured, and E. coli strains were isolated usingstandard methods. Shiga toxin-producing E. coli strains were identified genotypically by thepresence of the virulence markers using a single-plex polymerase chain reaction. The antibioticsusceptibility testing of Shiga toxin-producing E. coli isolates was done by the agar disk diffusionmethod. In total, 32 E. coli isolates were recovered from milk samples from lactating animals. PCRscreening of these isolates resulted in 19 (59.3%) positives for Shiga toxin-producing E. coli. Thestx2 gene was detected in 53% of cases, followed by stx1 (31%) and eae (16%. The STEC isolateswere highly sensitive to ciprofloxacin (94.7%) and kanamycin (89.5%), while exhibiting signif-icant resistance to amoxicillin (89.5%) and streptomycin (73.7%). The present study points outthe occurrence of virulent and antibiotic-resistant Shiga toxin-producing E. coli strains in raw milkthat could pose a potential risk to public health. Further analysis by whole genome sequencing isnecessary for an in-depth assessment and understanding of their virulence and resistance factors.Moreover, large-scale studies are needed to identify the prevalence and potential risk factors andto prevent the spread of antibiotic-resistant STEC strains in the milk production chain.
View/Open
A Review of the Prospective Effects of Spacing and Varieties on Onion Yield and Yield Components (Allium cepa L.) in Ethiopia

Yohannes Gelaye, Kelemu Nakachew, and Solomon Ali  (2024-03-22)

College of Agriculture and Natural resources Horticulture
Abstract Preview:
Onion (Allium cepa L.) is the most important commercial vegetable crop widely grown throughout the world. It is also animportant bulb crop in Ethiopia. However, its production and productivity are restricted by diferent factors, including biotic andabiotic stresses. Tis review investigates the potential impacts of spacing and varieties on onion yield and yield components inEthiopia. Countries around the world are producing onion for its nutritional value, medicinal properties, minerals, proteins, andcarbohydrates. In terms of production, onion ranks second only after tomatoes. Te average onion yield in Ethiopia is estimated tobe 8.8 tons/ha, while in the world, it is approximately 19.7 tons/ha. Inappropriate spacing and inadequate onion varieties are someof the limitations widely described for yield variation in Ethiopia. Tus, to control the size, shape, and yield of onion bulbs, spacingdetermination and variety improvement are some of the techniques currently employed in Ethiopia. Adama red, Bombay red, andred creole are some of the known varieties in the country, and the intrarow spacings for Adama red and Bombay red are reported tobe 4 cm and 6 cm, respectively. Diferent spacing between onion plants afects how much they produce and other factors such assize and quality, depending on the variety. It is important to assess whether changing spacing makes sense from both a farmingand economic standpoint, alongside considering other agricultural methods.
Full Abstract:
Onion (Allium cepa L.) is the most important commercial vegetable crop widely grown throughout the world. It is also animportant bulb crop in Ethiopia. However, its production and productivity are restricted by diferent factors, including biotic andabiotic stresses. Tis review investigates the potential impacts of spacing and varieties on onion yield and yield components inEthiopia. Countries around the world are producing onion for its nutritional value, medicinal properties, minerals, proteins, andcarbohydrates. In terms of production, onion ranks second only after tomatoes. Te average onion yield in Ethiopia is estimated tobe 8.8 tons/ha, while in the world, it is approximately 19.7 tons/ha. Inappropriate spacing and inadequate onion varieties are someof the limitations widely described for yield variation in Ethiopia. Tus, to control the size, shape, and yield of onion bulbs, spacingdetermination and variety improvement are some of the techniques currently employed in Ethiopia. Adama red, Bombay red, andred creole are some of the known varieties in the country, and the intrarow spacings for Adama red and Bombay red are reported tobe 4 cm and 6 cm, respectively. Diferent spacing between onion plants afects how much they produce and other factors such assize and quality, depending on the variety. It is important to assess whether changing spacing makes sense from both a farmingand economic standpoint, alongside considering other agricultural methods.
View/Open
Characteristics of Pathogenic Escherichia coli Associated with Diarrhea in Children under Five Years in Northwestern Ethiopia

Berihun Mossie Mulu, Mequanint Addisu Belete, Tiliksew Bialfew Demlie, Habtamu Tassew, and Tesfaye Sisay Tessema  (2024-03-21)

College of Agriculture and Natural resources Veterinary laboratory Technology
Abstract Preview:
Abstract: Diarrheagenic Escherichia coli (DEC) are the leading cause of infectious diarrhea and posea significant global, regional, and national burden of disease. This study aimed to investigate theprevalence of six DEC pathotypes in children with diarrhea and determine their antibiotic resistancepatterns. Samples from 107 diarrheagenic children were collected and processed for Escherichiacoli (E. coli). Single-plex PCR was used to detect target virulence genes as well as characterize andcategorize DEC pathotypes. Antibiotic resistance patterns were determined by the Kirby–Bauerdisk diffusion method. E. coli was detected in 79 diarrheal stool samples, accounting for 73.8% ofthe samples collected. Additionally, 49.4% (39 out of 79) of the isolates harbored various typicalvirulence factors. Results revealed six pathotypes of virulence: enterotoxigenic E. coli (ETEC) (53.8%),enteropathogenic E. coli (EPEC) (12.8%), enteroaggregative E. coli (EAEC) (10.3%), Heteropathotypes(7.8%), Shiga toxin-producing E. coli (STEC), and enterohemorrhagic E. coli (EHEC) (7.7% each).The isolates exhibited high antibiotic resistance against trimethoprim/sulfamethoxazole (82.1%),amoxicillin (79.5%), ampicillin (74.4%), gentamicin (69.2%), and streptomycin (64.1%). An overalloccurrence of 84.6% of multiple-drug resistance was observed in the isolates, with resistance rangingfrom three to four antibiotic classes. Our findings revealed a high level of pathogenic E. coli that werehighly resistant to multiple categories of antibiotics among children in the Awi zone. These findingshighlight the potential role of pathogenic E. coli in childhood diarrhea in tropical low-resourcesettings and underscore the need for continued research on the characteristics of pathogenic andantibiotic-resistant strains.Keywords: children; diarrheagenic Escherichia coli; resistance; virulent genes; Awi zone
Full Abstract:
Abstract: Diarrheagenic Escherichia coli (DEC) are the leading cause of infectious diarrhea and posea significant global, regional, and national burden of disease. This study aimed to investigate theprevalence of six DEC pathotypes in children with diarrhea and determine their antibiotic resistancepatterns. Samples from 107 diarrheagenic children were collected and processed for Escherichiacoli (E. coli). Single-plex PCR was used to detect target virulence genes as well as characterize andcategorize DEC pathotypes. Antibiotic resistance patterns were determined by the Kirby–Bauerdisk diffusion method. E. coli was detected in 79 diarrheal stool samples, accounting for 73.8% ofthe samples collected. Additionally, 49.4% (39 out of 79) of the isolates harbored various typicalvirulence factors. Results revealed six pathotypes of virulence: enterotoxigenic E. coli (ETEC) (53.8%),enteropathogenic E. coli (EPEC) (12.8%), enteroaggregative E. coli (EAEC) (10.3%), Heteropathotypes(7.8%), Shiga toxin-producing E. coli (STEC), and enterohemorrhagic E. coli (EHEC) (7.7% each).The isolates exhibited high antibiotic resistance against trimethoprim/sulfamethoxazole (82.1%),amoxicillin (79.5%), ampicillin (74.4%), gentamicin (69.2%), and streptomycin (64.1%). An overalloccurrence of 84.6% of multiple-drug resistance was observed in the isolates, with resistance rangingfrom three to four antibiotic classes. Our findings revealed a high level of pathogenic E. coli that werehighly resistant to multiple categories of antibiotics among children in the Awi zone. These findingshighlight the potential role of pathogenic E. coli in childhood diarrhea in tropical low-resourcesettings and underscore the need for continued research on the characteristics of pathogenic andantibiotic-resistant strains.Keywords: children; diarrheagenic Escherichia coli; resistance; virulent genes; Awi zone
View/Open
The effect of seed and nitrogen phosphorous fertilizer rates on growth and yield components of bread wheat (Triticum aestivum L.) in Burie District, Northwestern Ethiopia

Kelemu Nakachew  1 , Fenta Assefa  2 , Habtamu Yigermal  3 (2024-03-11)

College of Agriculture and Natural resources Plant Science
Abstract Preview:
In the absence of a recommended optimal seed rate and nitrogen-phosphorous (NP) fertilizers application for a spe-cific area, achieving maximum bread wheat productivity becomes challenging. To address this issue, this field experi-ment was conducted to evaluate the effect of seed and NP fertilizer rates on growth, yield, and yield components ofbread wheat (Triticum aestivum L.). Factorial combinations of four levels of seed rates of bread wheat (100, 120, 150, and200 kg ha−1 ) and four levels of NP fertilizers rates (64–46, 87–46, 96–69, and 119–69 kg ha−1 of N and P 2 O 5 ) werelaid down in randomized complete block design with three replications. The remaining necessary agronomic practicesand crop management activities were undertaken uniformly. The data presented in this dataset article includes pheno-logical, growth, yield, and yield component parameters that were collected timely following their standard methods andprocedures. All the collected data were subjected to analysis of variance (ANOVA) which was carried out using theSAS version 9.0 software computer program’s General Linear Model (GLM) procedure [1]. the residuals were evalu-ated, as described in Montgomery [2], to confirm the normal distribution and homogeneous variance model assump-tions on the error terms for each response variable. The independence assumption is upheld due to the randomization ofthe sixteen (16) treatment combinations within each block. In cases where a treatment effect was found to be significant,a multiple means comparison was conducted at a 5% significance level using Fisher’s LSD method to create letter group-ings. Additionally, correlation analysis was carried out using the Pearson correlation procedure in SAS. This dataset articleprovides insights into how seed rate and NP fertilizer rates impact bread wheat productivity, as well as the economic viability of optimal seed rate and NP fertilizer rates on bread wheat productivity. The information presented can serve as a valuable resource for researchers looking to examine thesupplementary data and methods in detail, potentially lead ing to new research avenues. Furthermore, it has the potential to foster collaborations and enhance the credibility of the current research data within the scientific community, making it accessible for wider use.
Keywords: Bread wheat, Burie district, Dataset, Grain yield, Seed rate, NP fertilizers, Partial budget analysis
Full Abstract:
In the absence of a recommended optimal seed rate and nitrogen-phosphorous (NP) fertilizers application for a spe-cific area, achieving maximum bread wheat productivity becomes challenging. To address this issue, this field experi-ment was conducted to evaluate the effect of seed and NP fertilizer rates on growth, yield, and yield components ofbread wheat (Triticum aestivum L.). Factorial combinations of four levels of seed rates of bread wheat (100, 120, 150, and200 kg ha−1 ) and four levels of NP fertilizers rates (64–46, 87–46, 96–69, and 119–69 kg ha−1 of N and P 2 O 5 ) werelaid down in randomized complete block design with three replications. The remaining necessary agronomic practicesand crop management activities were undertaken uniformly. The data presented in this dataset article includes pheno-logical, growth, yield, and yield component parameters that were collected timely following their standard methods andprocedures. All the collected data were subjected to analysis of variance (ANOVA) which was carried out using theSAS version 9.0 software computer program’s General Linear Model (GLM) procedure [1]. the residuals were evalu-ated, as described in Montgomery [2], to confirm the normal distribution and homogeneous variance model assump-tions on the error terms for each response variable. The independence assumption is upheld due to the randomization ofthe sixteen (16) treatment combinations within each block. In cases where a treatment effect was found to be significant,a multiple means comparison was conducted at a 5% significance level using Fisher’s LSD method to create letter group-ings. Additionally, correlation analysis was carried out using the Pearson correlation procedure in SAS. This dataset articleprovides insights into how seed rate and NP fertilizer rates impact bread wheat productivity, as well as the economic viability of optimal seed rate and NP fertilizer rates on bread wheat productivity. The information presented can serve as a valuable resource for researchers looking to examine thesupplementary data and methods in detail, potentially lead ing to new research avenues. Furthermore, it has the potential to foster collaborations and enhance the credibility of the current research data within the scientific community, making it accessible for wider use.
Keywords: Bread wheat, Burie district, Dataset, Grain yield, Seed rate, NP fertilizers, Partial budget analysis
View/Open
Occurrence of Methicillin-Resistant Staphylococcus aureus (MRSA) in Bovine Bulk Milk and Farm Workers in Smallholder Dairy Farming Systems in Northwestern Ethiopia

Haregua Yesigat Kassa, Mequanint Addisu Belete, Fanuel Bizuayehu Yihunie, Azeb Bayu, Tiliksew Bialfew Demlie, Habtamu Tassew (2024-03-11)

College of Agriculture and Natural resources Veterinary laboratory Technology
Abstract Preview:
Background and Purpose: Staphylococcus aureus is a common pathogen responsible for causing various human and animalinfections and is well known for its ability to develop resistance to multiple antibiotics. This study aimed to evaluate the occurrence ofmethicillin-resistant Staphylococcus aureus (MRSA) in bulk milk and dairy farms in northwestern Ethiopia and to determine theirphenotypic and genotypic antimicrobial susceptibility patterns.Methods: We collected 50 bulk milk samples from 50 dairy farms and 50 hand swabs from dairy milkers. The cefoxitin disk diffusiontest and PCR-based assays were used to identify MRSA isolates. In addition, cefoxitin-resistant isolates were tested for susceptibilityto other antibiotics using the Kirby-Bauer disk diffusion method.Results: The results showed that MRSA was detected in 8 samples: 6 from bulk milk samples (12%) and 2 from hand swabs (4%). AllMRSA isolates exhibited a high resistance rate to penicillin (100%), followed by tetracycline (75%), ciprofloxacin (25%), chloram-phenicol (25%), erythromycin (25%), gentamycin (12.5%), and trimethoprim-sulfamethoxazole (12.5%). Moreover, 72% of theisolates showed resistance to three or more antibiotic classes and were classified as multidrug-resistant.Conclusion: This study identified methicillin-resistant Staphylococcus aureus and multidrug-resistant MRSA in bulk milk and dairyfarms in northwestern Ethiopia. These findings highlight the potential risk of transmission of these antibiotic-resistant bacteria tohumans and the need for improved antibiotic stewardship in the dairy sector using the One Health approach.Keywords: dairy farms, Ethiopia, humans, MRSA, bulk milk, resistance
Full Abstract:
Background and Purpose: Staphylococcus aureus is a common pathogen responsible for causing various human and animalinfections and is well known for its ability to develop resistance to multiple antibiotics. This study aimed to evaluate the occurrence ofmethicillin-resistant Staphylococcus aureus (MRSA) in bulk milk and dairy farms in northwestern Ethiopia and to determine theirphenotypic and genotypic antimicrobial susceptibility patterns.Methods: We collected 50 bulk milk samples from 50 dairy farms and 50 hand swabs from dairy milkers. The cefoxitin disk diffusiontest and PCR-based assays were used to identify MRSA isolates. In addition, cefoxitin-resistant isolates were tested for susceptibilityto other antibiotics using the Kirby-Bauer disk diffusion method.Results: The results showed that MRSA was detected in 8 samples: 6 from bulk milk samples (12%) and 2 from hand swabs (4%). AllMRSA isolates exhibited a high resistance rate to penicillin (100%), followed by tetracycline (75%), ciprofloxacin (25%), chloram-phenicol (25%), erythromycin (25%), gentamycin (12.5%), and trimethoprim-sulfamethoxazole (12.5%). Moreover, 72% of theisolates showed resistance to three or more antibiotic classes and were classified as multidrug-resistant.Conclusion: This study identified methicillin-resistant Staphylococcus aureus and multidrug-resistant MRSA in bulk milk and dairyfarms in northwestern Ethiopia. These findings highlight the potential risk of transmission of these antibiotic-resistant bacteria tohumans and the need for improved antibiotic stewardship in the dairy sector using the One Health approach.Keywords: dairy farms, Ethiopia, humans, MRSA, bulk milk, resistance
View/Open
Ethiopian women experiencing infertility: sociocultural challenges and coping strategies

Tinisaie Biadigie adanea, Kelemu Zelalem Berhanub and Abatihun Alehegn Sewagegn (2024-02-26)

Institute of Educational and Behavioral Sciences Education
Abstract Preview:
the main purpose of this study was to explore the social and cultural challenges andcoping strategies of women experiencing infertility in Bichena town, ethiopia. thisstudy followed a qualitative research approach and a descriptive phenomenologicaldesign. this study applied a purposive sampling technique and selected 30 samples.through in-depth interviews, focus group discussions and key informant interviewswere used. thematic analysis was employed for data analysis. the findings revealed thatwomen experiencing infertility were challenged by social challenges; the major socialcomponents were isolation, stigma, family and social pressure, marital instability, andlow social status. Women experiencing infertility were also challenged by culturalfactors. Missing cultural rituals, trouble in asking newborn mothers, not considering fullwomen or motherhood, and missing the value of children were the major culturalchallenges of women experiencing infertility. Women experiencing infertility also useda variety of coping strategies, such as religious, traditional, medical, and informalfosterage. the study concluded that women experiencing infertility in the study areawere challenged by social and cultural factors that made their lives bitter and useddifferent coping strategies to manage their ongoing problems. this study has theoreticalimplications for current literature knowledge and practical implications.
KEYWORDS: Coping strategies; women experiencing infertility; cultural challenge; social challenge
Full Abstract:
the main purpose of this study was to explore the social and cultural challenges andcoping strategies of women experiencing infertility in Bichena town, ethiopia. thisstudy followed a qualitative research approach and a descriptive phenomenologicaldesign. this study applied a purposive sampling technique and selected 30 samples.through in-depth interviews, focus group discussions and key informant interviewswere used. thematic analysis was employed for data analysis. the findings revealed thatwomen experiencing infertility were challenged by social challenges; the major socialcomponents were isolation, stigma, family and social pressure, marital instability, andlow social status. Women experiencing infertility were also challenged by culturalfactors. Missing cultural rituals, trouble in asking newborn mothers, not considering fullwomen or motherhood, and missing the value of children were the major culturalchallenges of women experiencing infertility. Women experiencing infertility also useda variety of coping strategies, such as religious, traditional, medical, and informalfosterage. the study concluded that women experiencing infertility in the study areawere challenged by social and cultural factors that made their lives bitter and useddifferent coping strategies to manage their ongoing problems. this study has theoreticalimplications for current literature knowledge and practical implications.
KEYWORDS: Coping strategies; women experiencing infertility; cultural challenge; social challenge
View/Open
Assessment of agricultural land suitability for cereal crops based on the analysis of soil physico-chemical characteristics

Simeneh Gedefaw Abate & Mihret Bizuye Anteneh  (2024-02-12)

College of Agriculture and Natural resources Natural Resource Management
Abstract Preview:
This research aimed at evaluation of a given land resource suitable for selected rain fed crops production (maltbarley, wheat and teff ) in Ambesh watershed. It also quantified suitable land and classified into the land mappingunits (LMUs), and presents a land suitability map. Land suitability assessment (LSA) made using climatic condition,topography, soil physical and chemical properties as a major factor integrated with a multi criteria decision making(MCDM) analysis in Ambesh watershed. Fourteen composite soil samples were taken by categorizing the water-shed into different land mapping units (LMUs) and analyzed in a soil laboratory. Climatic data, rainfall was obtainedfrom two meteorological stations nearby to the study area. Temperature data derived from Landsat 8 satellite ther-mal bands data. Data obtained from the soil laboratory and others were finally analyzed using ArcGIS environmentand priority estimation tool (PriEsT) software’s. Weighted Sum Overlay was implemented to investigate the final LSAmap of the watershed. Results revealed that LMUs, VRe–LPq and LPK.Pq–FLc LMUs has higher overall suitability for allthe selected rain fed crops. However, LMUs (VRe–NTu and NTu–VRe) has lower overall suitability values particularlyfor S1 suitability class (0.05% and 10.6%, respectively). The least suitable LMU is VRe–NTu with 0.05% S 1 suitability classand above 99% of the land laid under the suitability classes of moderately suitable, marginally suitable and not suit-able for the selected land utilization types. Moreover, about 219.06 ha (17.76%), 217.6 ha (17.64%), 168.9 ha (13.7%),of land are highly suitable for malt barley, teff and wheat crop production, respectively. In conclusion, during MCDM,classifying the land into closer homogeneities (LMU) an important application of LSA integrated with remote sens-ing and GIS for a better decision making. Meanwhile, majority (above two third’s) of the land in the watershedis under moderate and marginally suitable, it needs intensive land management activities to increase the land quali-ties and obtain high yields. LSA recommended before land utilization decision has to be made. It is also importantto classifying the land into LMUs to make it more homogeneous for sample taking and reducing the prestigious soillaboratory analysis costs.Keywords LMUs, Land suitability assessment, Malt Barley, RS, Teff, Weighted sum, Wheat
Full Abstract:
This research aimed at evaluation of a given land resource suitable for selected rain fed crops production (maltbarley, wheat and teff ) in Ambesh watershed. It also quantified suitable land and classified into the land mappingunits (LMUs), and presents a land suitability map. Land suitability assessment (LSA) made using climatic condition,topography, soil physical and chemical properties as a major factor integrated with a multi criteria decision making(MCDM) analysis in Ambesh watershed. Fourteen composite soil samples were taken by categorizing the water-shed into different land mapping units (LMUs) and analyzed in a soil laboratory. Climatic data, rainfall was obtainedfrom two meteorological stations nearby to the study area. Temperature data derived from Landsat 8 satellite ther-mal bands data. Data obtained from the soil laboratory and others were finally analyzed using ArcGIS environmentand priority estimation tool (PriEsT) software’s. Weighted Sum Overlay was implemented to investigate the final LSAmap of the watershed. Results revealed that LMUs, VRe–LPq and LPK.Pq–FLc LMUs has higher overall suitability for allthe selected rain fed crops. However, LMUs (VRe–NTu and NTu–VRe) has lower overall suitability values particularlyfor S1 suitability class (0.05% and 10.6%, respectively). The least suitable LMU is VRe–NTu with 0.05% S 1 suitability classand above 99% of the land laid under the suitability classes of moderately suitable, marginally suitable and not suit-able for the selected land utilization types. Moreover, about 219.06 ha (17.76%), 217.6 ha (17.64%), 168.9 ha (13.7%),of land are highly suitable for malt barley, teff and wheat crop production, respectively. In conclusion, during MCDM,classifying the land into closer homogeneities (LMU) an important application of LSA integrated with remote sens-ing and GIS for a better decision making. Meanwhile, majority (above two third’s) of the land in the watershedis under moderate and marginally suitable, it needs intensive land management activities to increase the land quali-ties and obtain high yields. LSA recommended before land utilization decision has to be made. It is also importantto classifying the land into LMUs to make it more homogeneous for sample taking and reducing the prestigious soillaboratory analysis costs.Keywords LMUs, Land suitability assessment, Malt Barley, RS, Teff, Weighted sum, Wheat
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