1. Anon, 1996. Central Statistics Authority. Report on livestock, poultry and beehives population and number of holders by size of house holding, vol. VI. CSA, Addis Ababa, Ethiopia.
2. Small ruminant production in Ethiopia: constrains and future prospects;Awgichew,1991
3. Diallel cross of three Moroccan breeds of sheep. II. Reproductive performance and productivity of purebred ewes;Bourfia;J. Anim. Sci.,1993
4. Performance of hair breeds and prolific wool breeds of sheep in southern Illinois: lamb production of F1 ewe lambs;Bunge;J. Anim. Sci.,1993
5. Chafik, A., 1986. Analyse genetique de la taille de portee et ses composantes chez les brebis D’man, Sardi et leurs croisees. Memoire 3eme cycle Agronomie. I.A.V. Hassan II, Rabat, Morocco, p. 116.