COMPARATIVE EVALUATION OF BODY CONFORMATION TRAITS IN NATIVE ASEEL CHICKEN FED UNDER DIFFERENT DIETARY LYSINE REGIMENS - T. Batool; S. Farooq; N. Roohi; A. Mahmud (Journal of Animal and Plant Sciences, 2020)
An experiment was conducted for comparative evaluation of body conformation traits in Lakha, Mianwali, Mushki and Peshawari varieties of indigenous Aseel fed under three lysine regimens (L1, L2 and L3). In L1, 1.3 % lysine offered from week 1-6 (one phase), in L2, 1.4 and 1.2% lysine from week 1-3 and 4-6 (two phases), while 1.5, 1.3 and 1.1% lysine was offered from week 1-2, 3-4 and 5-6 (three phases), respectively in L3. Day-old-chicks (n=240) including 60 per variety with 20 birds per treatment group were used in this study. Body weight, shank length, drumstick length, drumstick circumference, body length, keel length, wing span, wing spread and breast width were measured on weekly basis. The data after analysis of homogeneity and uniformity, were exposed to factorial ANOVA as a Randomized Complete Block Design. The results indicated that birds fed under lysine regimen L3 had significantly (P≤0.05) greater body weight, breast width, shank length, shank circumference, drumstick length, drumstick circumference, keel length as well as wing span and wing spread. Among Aseel varieties, Lakha and Mushki varieties showed more developed body conformation traits than other varieties and these birds may perform better in terms of their morphometrics when reared under lysine regimen L3.
Keywords: journal article; Aseel varieties; Body weight; Conformation traits; Lysine regimens; Wing spread and Span