Efficacy of commercial feeds on broiler growth performance in Senegal | Efficacite des aliments du commerce chez le poulet de chair au Senegal
2001
Cisse, M. (Institut Senegalais de Recherches Agricoles, Dakar (Senegal)) | Ly, I. | Gongnet, M.P. | Missohou, A. | N'Doye, N. | Ka, F. | Boye, C.M. | Korrea, A.
This technico-economical study aims at comparing food efficiency of products from the main recorded manufactures in Senegal in Ross 208 broiler chicks by investigating the effect of lysine, methionine and groundnut oil supplementation on growth performance. In one trial 315 chicks were equally divided into 7 groups. Each group was then fed food from one manufacturer (F1 to F7) for 45 days. Broiler finishing weight at 42 days varied from 639 to 1672 g and their food conversion ratio from 2.0 to 3.7 corresponding respectively to F1 and F6, the latter being the least efficient in terms of technical or economical aspects. Inadequation between food price and efficacy was apparent. In a separate trial, 400 chicks were equally divided into 2 groups of 200. One group received commercial feed showing a deficit in lysine and methionine, the other the same feed supplemented with 2 % of groundnut oil. In each group 4 lots of 50 chicks were distinguished: a control group, the 3 other lots supplemented with either lysine (+lys) methionine (+met), or both (+lys+met). The level of lysine and methionine supplied to balance the deficit in the diet was 0.43 % and 0.11 %, respectively. Lysine offered alone or in combination with methionine significantly improved (p .05) growth performance and food efficiency. The technical and economical interest of lysine supplementation was shown. Oil supplementation improved growth, but no financial benefit of adding oil to commercial feed was established
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