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Despite much attention, history of sheep (Ovis aries) evolution, including its dating, demographic trajectory and geographic spread, remains controversial. To address these questions, we generated 45 complete and 875 partial mitogenomic sequences, and performed a meta-analysis of these and publis...


Feng-Hua LvWei-Feng PengJi YangYong-Xin ZhaoWen-Rong LiMing-Jun LiuYue-Hui MaQian-Jun ZhaoGuang-Li YangFeng WangJin-Quan LiYong-Gang LiuZhi-Qiang ShenSheng-Guo ZhaoEEr HehuaGorkhali, N.A.Farhad Vahidi, S.M.Muladno, M.Naqvi, A.N.Tabell, J.Iso-Touru, T.Bruford, M.W.Kantanen, J.Han JianlinMeng-Hua Li[Mitogenomic meta-analysis identifies two phases of migration in the history of Eastern Eurasian sheep]Mitogenomic meta-analysis identifies two phases of migration in the history of Eastern Eurasian sheep
Fall, AbdouDiop, MouhamadouSandford, J.Wissocq, Y.J.Durkin, J.W.Trail, J.C.M.[Etude de la productivité des moutons Djallonke au CRZ de Kolda, Sénégal. II. Poids corporels, productivité de brebis et des troupeaux]Etude de la productivité des moutons Djallonke au CRZ de Kolda, Sénégal. II. Poids corporels, productivité de brebis et des troupeaux

The study presents results of experiment undertaken to evaluate the nutritive value of poultry litter as part of a sheep ration replacing cotton-seed cake, utilizing measurements of chemical composition, in vitro as well as in vivo digestibility, voluntary intake, animal performance and carcass c...


El Hag, M.G.El Hag, G.A.[Further studies on the effects of supplementing groundnut hulls with dried poultry excreta or cotton seed cake on performance of Sudan Desert sheep]Further studies on the effects of supplementing groundnut hulls with dried poultry excreta or cotton seed cake on performance of Sudan Desert sheep

Discusses results of a study conducted on masai ranches to determine the effects of flock, season, parity, sex & litter size on reproductive traits like age at first parturition, intervals between successive births & number of young per birth in sheep and goats.


Wilson, R.T.Peacock, C.P.Sayers, A.R.[Aspects of reproduction in goats and sheep in south-central Kenya]Aspects of reproduction in goats and sheep in south-central Kenya
Autor: Dauda, C.S.

Sperm production of the Yankasa ram was investigated to determine the gonadal and extra-gonadal sperm reserves. Biometric measurements and sperm reserve evaluation were made on 7 Yankasa rams aged between 2 to 3 years. The mean body weight of the rams was 30.0 ± 3.1 kg; height at withers 70.0 ± 3...


Dauda, C.S.[Yankasa Ram: Body weight, withers hights, scrotal and penis size and sperm reserves]Yankasa Ram: Body weight, withers hights, scrotal and penis size and sperm reserves

The blood cellular elements of thirty desert sheep are reported. Values obtained are in agreement with those previously published in other countries with a slight insignificant increase or decrease. Determination of the serum total and differential proteins gave an average value of 6.93 + 0.465 g...


Hassan, Y.M.Abdel-Wahab, M.F.[Blood cellular elements and serum proteins in Desert sheep in the Sudan]Blood cellular elements and serum proteins in Desert sheep in the Sudan

The study was conducted in Burie District to assess the sheep production system and to identify and prioritize the sheep production constraints. Informal and formal surveys were conducted in four selected kebeles of Burie District, namely, Woheni Durebetie, Woyenema Ambaye, Denbun and Boko Tabo. ...


Abebe, YeneneshMelaku, S.Tegegne, AzageTegegne, F.[Assessment of sheep production system in Burie District, north western Ethiopia]Assessment of sheep production system in Burie District, north western Ethiopia

To date, investigations of genetic diversity and the origins of domestication in sheep have utilised autosomal microsatellites and variation in the mitochondrial genome. We present the first analysis of both domestic and wild sheep using genetic markers residing on the ovine Y chromosome. Analysi...


Meadow, J.R.S.Hanotte, Olivier H.Drogemullerr, C.Calvo, J.Godfrey, J.Coltman, D.Maddox, J.F.Marzanov, N.Kantanen, J.Kijas, J.W.[Globally dispersed Y chromosomal haplotypes in wild and domestic sheep]Globally dispersed Y chromosomal haplotypes in wild and domestic sheep

Groundnut haulms along with cowpea hay are major crop residues used for animal fattening in the West African Sahel. In traditional sheep fattening,feeds are always provided ad-hoc and in an unregulated fashion, which is rather wasteful. As a preliminary study to establish the optimal feeding leve...


Ayantunde, Augustine A.Delfosse, P.Fernández Rivera, S.Gerard, Bruno G.Dan-Gomma, A.[Supplementation with groundnut haulms for sheep fattening in the West African Sahel]Supplementation with groundnut haulms for sheep fattening in the West African Sahel

Genetic parameters for growth traits in Sabi sheep were estimated using from data records of 4123 lambs from 130 sires and 1131 dams collected between 1984 and 1994. Reproduction traits and lamb survival to weaning were analysed fitting a sire threshold model. The direct additive contribution t...


Matika, O.Wyk, J.B. vanErasmus, G.J.Baker, R.L.[Genetic parameter estimates in Sabi sheep]Genetic parameter estimates in Sabi sheep

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