Search

Eighteen quantitative measurements and fourteen qualitative characteristics taken from 306 adult sheep (57 rams and 249 ewes) were used to characterize sheep populations of district, Ethiopia. Most traits showed significant variation by zone, sex and age groups with higher values generally recorded for rams as compared to ewes. Middle age group animals displayed highest values for several traits, reflecting the optimal production age. zone affected ewes more than rams. The highland sheep height at withers, widest shoulder points and longest hair, indicative of adaptation to their environment. Qualitative characteristics of the studied sheep populations such as tail shape, plain coat color pattern, skin, hairy fiber and the absence of horn, toggle, ruff and beard suggest that they constitute a previously sheep breed. Tan coat color differentiated high and midland sheep from lowland sheep where white and brown colors were dominant. Canon bone length, height at withers and tail length were the three most important variables used in discriminating the sheep populations. On average 66% of the animals could be classified into their respective zone. Our data suggest that highland sheep populations are distantly related to lowland sheep, while midland sheep are more closely related to lowland sheep. It can be concluded that breeding programs specific to each zone need to be designed for sustainable utilization and conservation of the studied sheep populations. Furthermore, molecular based studies might allow further characterization of Ethiopian sheep breeds.

Melak A, Hailu A, Assefa A, Aseged T, Sinkie S, Tsion S. 2021. Characterization of the production system and breeding practices of sheep producers in Tahtay Maychew District, Northern Ethiopia. Intl J Trop Drylands 5: 5-11. Sheep rearing plays an important role in the livelihoods of rural people in Ethiopia, yet limited information is available regarding the management system of the sheep. The study was conducted in Tahtay Maychew district of the central zone of Tigray, Northern Ethiopia. The objective of the study was to understand the sheep production system, the breeding practices, selection criteria, and sheep production constraints to identify sheep farming practices about future production strategies in the study area. A total of 70 households from 2 kebeles (lower administrative structure) were selected purposively based on sheep population and production potential and accessibility. Data was collected through semi-structured questionnaires, focus group discussions, and key informants. An index was calculated to provide an overall ranking of the purpose of keeping sheep, culling rams and ewe, according to the formula: Index = ? of [3 for rank 1 + 2 for rank 2 + 1 for rank 3]. It is concluded that both female and male sheep are maintained mainly for income generation followed by breeding. A variable that was given a higher priority in selecting breeding males and females was body size. Disease, feed shortage, lack of grazing, and predators are the major constraints of sheep production mentioned in the study area. Therefore, addressing these constraints is important to design a successful genetic improvement scheme in the area for sheep.