A5088528713- Livestock and Poultry Management
- Animal Nutrition and Physiology
- Genetic and phenotypic traits in livestock
- Rangeland Management and Livestock Ecology
- Livestock Farming and Management
- Silkworms and Sericulture Research
- Genetic Mapping and Diversity in Plants and Animals
- Agriculture and Rural Development Research
- Animal Diversity and Health Studies
- Cancer-related molecular mechanisms research
- Genetic diversity and population structure
- Rabbits: Nutrition, Reproduction, Health
- Agricultural Innovations and Practices
- RNA and protein synthesis mechanisms
- Meat and Animal Product Quality
- Agricultural Systems and Practices
- Vector-Borne Animal Diseases
- Effects of Environmental Stressors on Livestock
- Wildlife Ecology and Conservation
- Livestock Management and Performance Improvement
- Child Nutrition and Water Access
- Virology and Viral Diseases
- Coccidia and coccidiosis research
- Viral Infections and Vectors
- Ruminant Nutrition and Digestive Physiology
International Livestock Research Institute
2011-2025
Bahir Dar University
2022-2024
Biotechnology Institute
2022
Ethiopian Institute of Agricultural Research
2001-2021
Hawassa University
2021
Addis Ababa University
2020
University of Nottingham
2012
Haramaya University
2001
The history of African indigenous cattle and their adaptation to environmental human selection pressure is at the root remarkable diversity. Characterization this diversity an essential step towards understanding genomic basis productivity survival under farming systems. We analyze patterns genetic variation by sequencing 48 genomes from five populations comparing them 53 commercial taurine breeds. find highest among zebu sanga cattle. Our search for regions reveals signatures adaptive...
A survey was conducted in Bure district, North West Ethiopia, from 2007 to 2008 assess the existing village chicken production system. participatory rural appraisal and a formal were used collect all relevant data, using multi-stage sampling technique. Seven farmer administrative kebeles (two high land, three mid altitude two low land agro-ecologies) total of 280 owner households considered for study. The result revealed that dominant (83%) system an extensive/traditional type production,...
To generate information essential for the implementation of breeding schemes suitable village poultry producers in Ethiopia, a survey was conducted aimed at defining socioeconomic characteristics production environments different geographic regions, understanding important functions chickens, identifying farmers' choice chicken breeds and underlying factors that determine genetic stock used. The included both questionnaire participatory group discussion. A total 225 households (45 from each...
Abstract Breeding for climate resilience is currently an important goal sustainable livestock production. Local adaptations exhibited by indigenous allow investigating the genetic control of this resilience. Ecological niche modeling (ENM) provides a powerful avenue to identify main environmental drivers selection. Here, we applied integrative approach combining ENM with genome-wide selection signature analyses (XPEHH and Fst) genotype−environment association (redundancy analysis), aim...
Abstract Indigenous poultry breeds from Africa can survive in harsh tropical environments (such as long arid seasons, excessive rain and humidity, extreme heat) are resilient to disease challenges, but they not productive compared their commercial counterparts. Their adaptive characteristics response natural selection or artificial for production traits that have left signatures the genome. Identifying these of positive provide insight into genetic bases adaptations observed indigenous...
This study describes the variations in physical features and useful attributes of different populations indigenous chickens. Five chickens regions Ethiopia were studied based on 13 qualitative traits recorded for a total 1 125 Additional measurements quantitative (shank length body weight) also included. Descriptive statistics (nonparametric F tests) used to analyze data. Each possessed multiple variants plumage colours other features. However, white is one prominent Farta red predominant...
We need to better understand and exploit the genetic diversity of Africa's indigenous livestock breeds—before they fade away.
Africa is home to numerous cattle breeds whose diversity has been shaped by subtle combinations of human and natural selection. African Sanga are an intermediate type resulting from interbreeding between Bos taurus indicus subspecies. Recently, research asserted the potential for commercial beef production with better meat quality as compared breeds. Here, we identified related gene regions that positively selected in Ankole (Sanga) (Boran, Ogaden, Kenana) using cross-population (XP-EHH...
In total, 166 individuals from 5 indigenous Ethiopian cattle populations—Ambo (n = 27), Borana 35), Arsi 30), Horro 36), and Danakil 38)—were genotyped for 8773 single nucleotide polymorphism (SNP) markers to assess genetic diversity, population structure, relationships. As a representative of taurine breeds, Hanwoo 40) were also included in the study reference. Among populations, proportion SNPs with minor allele frequencies (MAFs) ≥ 0.05 ranged 81.63% 85.30% Ambo, mean 83.96% across all...
Chicken production has a major role in the economy of developing countries and backyard is particularly important to women. Several programmes, Ethiopia elsewhere, have attempted improve chicken as means reduce poverty. A key constraint identified by farmers disease. This study used participatory rural appraisal methods work with chicken-keepers order prioritise diseases, place these within context other constraints, explore perceptions disease risk factors biosecurity measures. The study,...
Abstract As African indigenous cattle evolved in a hot tropical climate, they have developed an inherent thermotolerance; survival mechanisms include light‐colored and shiny coat, increased sweating, cellular molecular to cope with high environmental temperature. Here, we report the positive selection signature of genes breeds which contribute for their heat tolerance mechanisms. We compared genomes five four commercial using cross‐population composite likelihood ratio ( XP ‐ CLR ) extended...
Knowledge about genetic diversity and population structure is useful for designing effective strategies to improve the production, management conservation of farm animal resources. Here, we present a comprehensive genome-wide analysis diversity, admixture based on 244 animals sampled from 10 cattle populations in Asia Africa genotyped 69,903 autosomal single-nucleotide polymorphisms (SNPs) mainly derived indicine breed. Principal component analysis, STRUCTURE distance high-density SNP data...
Community-based breeding programs (CBBPs) for small ruminants have been suggested as alternatives to centralised, government-controlled schemes which implemented in many developing countries. An innovative methodological framework on how design, implement and sustain CBBPs was tested three sites Ethiopia: Bonga, Horro Menz. In these CBBPs, the main selection trait identified through participatory approaches 6-month weight all sites. where resources such feed water permitted larger litter...
Introduction Despite several reports emphasizing the role of agroforestry in enhancing rural livelihoods, promoting sustainable development, protecting environment, and supporting climate change mitigation adaptation, little is known about households’ perceptions different benefits extent adoption its technologies, including contour farming with tree planting, alley cropping, woodlot timber production, integration fruits, nuts, medicinal trees, home gardens, fruits on farmland, boundary live...
Sheep in Ethiopia are adapted to a wide range of environments, including extreme habitats. Elucidating their genetic diversity is critical for improving breeding strategies and mapping quantitative trait loci associated with productivity. To this end, the present study investigated population structure five Ethiopian sheep populations exhibiting distinct phenotypes sampled from production arid lowlands highlands. investigate relationships greater detail infer breeds at continental global...
AbstractThe rearing of indigenous chickens is an integral part the smallholder farming system in tropics, where they are kept by rural poor to fulfil multiple functions. Their special adaptation environmental stresses and husbandry practices has made them choice breed for production systems. However, little effort been characterise chicken their environment, despite increase emerging works recently. This paper aims at reviewing current state phenotypic characterisation work on tropics. By...
The majority of chickens in sub-Saharan Africa are indigenous ecotypes, well adapted to the local environment and raised scavenging production systems. Although they generally resilient disease challenge, routine vaccination biosecurity measures rarely applied infectious diseases remain a major cause mortality reduced productivity. Management genetic improvement programmes hampered by lack data recording. Selective breeding based on genomic technologies may provide means enhance...
Chicken production in the context of nutrition-sensitive agriculture may benefit child nutrition low-income settings.