Effect of Chicken Genotype on Growth Performance of Pure and Crossbred Progenies in the Development of a Broiler Line
نویسندگان
چکیده
This experiment was conducted to assess the effect of chicken genotype on the growth performance, feed intake and feed conversion efficiency of the progenies resulting from purebred (Giriraja (Gr) X Giriraja (Gr)), straight (Gr male X Alpha female), reciprocal (Alpha male X Gr female) and Alpha male X White Leghorn (WL) female crosses. Data obtained on body weight, body length, breast girth, keel length, feed intake and feed conversion efficiency in a Completely Randomized Design were analysed using one-way analysis of variance for the fixed effect of chicken genotype. Generally, all growth traits, feed intake and feed conversion efficiency were significantly affected (P < 0.05) by chicken genotype. Body parameters, feed intake and feed conversion efficiency increased as birds advanced in age. Progenies resulting from mating of Giriraja X Giriraja chickens had the highest body weight, breast girth and feed conversion efficiency. However, the reciprocal crosses of Alpha X Gr resulted in significant (P < 0.05) improvement of body length, keel length and feed intake. In conclusion therefore, the genetic superiority exhibited by the crosses of Alpha x Gr when compared with other crossbreds could be exploited to speed up the growth performance of indigenous chicken towards having Nigerian indigenous broiler line.
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