In-silico predictions to project the response to selection in livestock breeding programmes are done to estimate the possible genetic and economic gains. In these predictions, genetic and phenotypic parameters from various studies are used as some of the input parameters. Since parameters are affected by various factors such as sample sizes and genetic gain is a function of these parameters, the sources from which these parameters are obtained should be accounted for. Reduction of genetic var...
Abstract: An on-farm phenotypic characterization of the hararghe highland cattle population and their production system studies were conducted in three districts of East Hararghe Zone, Oromia, Ethiopia. Data were collected through semi-structured questionnaires, focus group discussions, field observations, and linear body measurements (LBM). A total of 150 households were randomly selected questionnaire survey and 450 cattle (115 male and 335 female) were sampled for morphological descriptio...
Abstract: This study aimed to assess the Artificial insemination service and reproductive performance of dairy cattle. Data were collected using a structured questionnaire, focus group discussions, and retrospective data. A total of 204 respondents were randomly selected from the three districts (68 from each) and 9 kebeles (3 kebeles from each).In addition to those, 10 AITs, and 6 animal health professionals from each district. The dairy cows were selected by using random sampling methods. ...
Abstract: The study was conducted on a community-based CHL goat breeding program (CBBP) established in 2013 in Meta Wolkite district, West Shoa zone. This study aimed to evaluate the performance progress so far achieved due to the genetic improvement intervention by CBBP and estimate genetic parameters of the growth performance. The General Linear Model Procedures in the Statistical Analysis System (SAS, 2002 version 9.0) were employed for quantitative traits and SPSS (SPSS, 2007 version 16....
Abstract: This study was carried out to investigate the effects of breed (rams and ewes), sex and birth type on growth performances of cross bred lambs of sheep under semi-intensive production system. Dorper and Horro rams were used for comparisons crossing with three local breeds of ewes (Horro, Black Head Ogaden (BHO) and Harreghe Highland (HH). Growth performance was determined using General Linear Model procedures. The results of this study showed that Dorper cross breed lambs were signi...
Abstract: Lifetime traits are some of the important traits used to compare the performance and profitability of dairy cattle. The objective of this study was to estimate the genetic and non genetic performance of lifetime traits of crossbred dairy cattle in the central highland of Ethiopia. Birth year records of 502 cows maintained at Holetta Agricultural Research Centre from 1974 to 2015(42 years) were used to estimate total life, herd life, productive life, lifetime milk yield, lifetime ca...
Abstract: This study was conducted to estimate non-genetic factors and genetic parameters for birth weight and reproduction traits of pure Jersey dairy cattle at Adea Berga Research Station. A total of 11,794 pure Jersey dairy cattle performance records which were collected from 1986 to 2019 was used for the study. The General Linear Model (GLM) procedures of SAS software were used to determine the effects of non-genetic factors. Genetic parameters and variance components were estimated by A...
Abstract: The study was carried out to assess the efficiency of artificial insemination, problems associated with its services, and the reproductive performance of dairy cattle in selected districts of West Hararghe Zone Oromia Regional State Ethiopia. Both cross-sectional and retrospective types of study design were used. A structured questionnaire was prepared and data were collected by using the purposive sampling method. A total of 261 respondents (210 AI beneficiaries, 42 animal health,...
Abstract: The study was conducted to evaluate the Genotype by Environment interaction for growth and egg production performances of Kuroiler, Koekoek, Sasso, and Sasso-RIR exotic chicken breeds and assess chicken husbandry practices under smallholder production system in Gondar Zuria and Kalu districts of Eastern and Northern Amhara. The survey data were collected through questionnaires using180 households and analyzed by SAS software of chi- square test while 184 households and four chicken...
Abstract: This study was carried out with the aim of evaluating Abera sheep community-based breeding programs (CBBPs) in Dara and Hula districts of Sidama Regional State and station-based breed improvement programs which has been implemented since 2018. Performance and pedigree data obtained from the ongoing community-based breeding programs and from the on-station program were used. Furthermore, survey data were used to evaluate the ongoing CBBPs. A total of 188 households, 91 CBBP particip...
Abstract: The study was conducted in Horro district on farmers’ flocks of Horro sheep community based sheep breeding program (CBBP) to evaluate productive performances and estimate the genetic parameter in Horro sheep in Ethiopia. A total of 2480 birth weight (BWt), 2441 three month weight (3MWt), 770 six-month weight (6MWt), 307 for both lambing interval (LI), and annual reproductive rates (ARR) traits produced from 1398 ewes,101 rams were used. The least-squares means analysis was perfor...
Abstract: The study was carried out in three districts of East Hararghe zone, Oromia Regional State, Ethiopia, from August2022 throughApril 2023, with the objectives of phenotypically characterizing and to assess breeding and husbandry practices of the communities in the study areas (Fadis, Gursum and Goro districts). Field observations, semi-structured questionnaires, focus groups, interviews with key informants, linear body measurements of sample indigenous cattle, and secondary data gathe...
Abstract: Individual interview, own-flock ranking and group animal ranking experiment were implemented to define the breeding objective traits for indigenous goats in the study area. Two districts in Arsi Zone, namely, Honkolo Wabe and Lemu Bilbilo were selected purposively to get appropriate breeding objective. A pre-tested questionnaire was used for the individual interview with randomly selected 120 goat producers, 60 from each district. Indices were calculated to provide the ranking of t...
Abstract: The study was conducted in two districts of Arsi and Bale zones, with the objectives to assess morph metrical differentiation and structural indices for Arsi-Bale sheep breed and to assess sheep breeding and husbandry practices of the communities in the Study Area. The study involved both qualitative and quantitative type of research. A total of 90 indigenous sheep owning farmers for survey and only mature 200 sheep (36 male and 164 non pregnant females) were taken for qualitative ...
Abstract: The study was conducted in three districts of Gamo Gofa zone, with the objectives to discriminate the morphological character of different local chicken population and to assess the chicken breeding and husbandry practices of the community in the study area. A total of 180 indigenous chicken owning farmers for survey and 711 chickens (162 male and 549 females) aged greater than 8 months for quantitative study were considered in this study. Descriptive statistics, frequency procedur...