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The Ethiopian Agricultural Research is one of the oldest and largest agricultural research system in Africa. Ethiopian Agricultural Research System (EARS) has evolved through several stages since its first initiation during the late 1940s, following the establishment of agricultural and technical schools at Ambo and Jimma. In 1955, a full-fledged agricultural experiment station was established at Debre Zeit (now named Debre Zeit Agricultural Research Center) under the then Imperial College of Agricultural and mechanical Arts (now called Haramay [...]

Journal Article

Journal article

A study on fattening Ethiopian sheep: I. Performance of highland lambs under feed-Lot conditions.  [1979]

Galal,E.S.E. and Kasahun Awgichew and Beyene Kebede and Yohannes Gojjam and O'Donovan,P.B.(Officers and Researchers); Ethiopian Journal of Agricultural Sciences [Corporate Author]

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Two trial were performed to study the fattening performance of Ethiopian highland sheep under feed-lot conditions. Three diets were tried; A-20% hay, B-35% hay and C-50% hay. Trial I had the three diets represented on 84 non-descript highland all-milk-tooth ram lambs, while in Trial II, only diets A and C were tried on 47 highland Horro ram lambs. The average initial weight was 20.4 kg in Trial II. Average daily gain differed significant (P.01) among diets being 141,96 and 49 g for diets a, B and C, respectively in Trial I and 133 and 90 g for A and C in Trial II. Feed conversion rates measured in Trial I were 7.4, 9.3 and 16.0 kg feed/kg gain, respectively, for diets A, B, and C. Carcass traits showed a similar pattern in the two trials except that Trial II lacked statistical significance in the difference between treatments in all traits except dressing percentage wile Trial I showed such significance in all traits, Diet A showed the heaviest carcass followed by B while C was the lightest. Such a trend among diets prevailed in all carcass traits studied, viz, dressing percentage, hindquarters percentage, eye-muscle area, fat thickness above ribeye muscle, kidney fat, omental fat and tail weight. In Ethiopia, as in many parts of Africa, the system of sheep production practiced is one in which the great majority of sheep sent to market for slaughter are unfinished milk-tooth lambs (13). In a survey covering 13 markets in the Ethiopian highlands, it was e
stimated that milk tooth lambs represent 82% of the total sheep marketed with liveweights ranging between 10 and 18 kg. The mutton yield form this category of animals is indeed low and it may be a wasteful system not to make use of the growth potential of these lambs. The study was carried out to investigate means and feasibility of finishing immature highland lambs under feed-lot conditions.

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Ethiopian Journal of Agricultural Sciences