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Performance and economy of production of broilers fed Siam weed (Chromolaena odorata) leaf meal (SWLM)

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A 49-day feeding trial was conducted to determine the effect of Siam weed leaf meal (SWLM)-based diets on growth, organ, and carcass weight characteristics and economics of production of broilers. Proximate biochemical composition of SWLM and the appropriate inclusion level of SWLM for optimum productivity were also determined. Ninety-six-day-old Chi broiler chicks were randomly divided into 4 groups of 24 birds, and each group replicated three times. Each group was assigned to one experimental diet in a completely randomized design marked T1 (0%), T2 (4%), T3 (8%), and T4 (12%). Proximate biochemical results revealed that SWLM is rich in protein (20.52%) and minerals (9.29%). Birds on diets T1 and T2 had similar (p > 0.05) final live weights (FLW), which were higher (p < 0.05) than those on diets T3 and T4. Birds on diet T2 had the highest (p < 0.05) daily feed intake (DFI) and daily weight gain (DWG), while birds on diet T1 had the best feed conversion ratio (FCR) followed by birds on diet T2. The result of quadratic model regression analyses showed that SWLM levels of 1.48, 1.50, 1.47, and 1.56% supported optimum final live weight, DFI, DWG, and FCR. There were no significant (p > 0.05) differences in the dressing percentage, but there were significant differences in the carcass weight between birds on diet T4 and the other three diets. Similarly, pancreas and spleen had similar (p > 0.05) weights across the treatments. There was significant difference (p < 0.05) between birds on diets T1 and T4 in gizzard weight. Cost-benefit ratio was influenced (p < 0.05) with T4 birds having better income of US$1 per US$10.18 invested. It is concluded that SWLM is rich in essential nutrients and therefore suitable for inclusion in broiler diets at level not beyond 2% for best final live weight, daily weight gain, and thigh weight.

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The authors are also grateful to the Department of Animal Health and Production Technology, Federal College of Agriculture, Ishiagu, Ebonyi State, Nigeria, for the technical support.

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Correspondence to P. C. Jiwuba or I. P. Ogbuewu.

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Jiwuba, P.C., Ogbuewu, I.P. & Nwachukwuguru, K. Performance and economy of production of broilers fed Siam weed (Chromolaena odorata) leaf meal (SWLM). Trop Anim Health Prod 50, 1305–1311 (2018).

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