Makanju et al Greener Journal of Agricultural Sciences Vol. 11(2), pp. 108-113, 2021 ISSN: 2276-7770 Copyright ©2021, the copyright of this article is retained by the author(s) https://gjournals.org/GJAS Haematology and Serum biochemistry of broilers fed diets containing cassava peels and cassava leaf meal 1Makanju T.D.; 2Abu O.A.; 3Olaleru, I.F.; 1Amusa, H.O. 1Oyo State College of Agriculture and Technology, Igboora, Oyo state. 2Department of Animal Science, University of Ibadan, Oyo State, Nigeria 3Faming Systems Research Program, National Root Crops Research Institute, Umudike, Abia State. Nigeria ARTICLE INFO ABSTRACT Article No.: 071221065 Type: Research A 7 weeks feeding trial was conducted in a completely randomized design to evaluate the haematological parameters and serum biochemistry parameters of 7-day old Abor-acre broiler chicks fed with different diets containing cassava peels and cassava leaf meal. The birds were assigned to four dietary treatments with three replicates and 15 birds per replicate. The birds in the control treatment (Treatment 1) were fed diets that did not contain cassava peel or cassava leaf meal, birds in treatment 2 were fed with diets containing cassava peel to replace maize by 20% and cassava leaf meal to replace soya bean meal by 20%, birds in treatment 3 were fed diets containings cassava leaves to replace soya bean meal by 20% and birds in treatment 4 were fed diets containing cassava peel to replace maize by 20%. The chicks were mass brooded at day old and fed with commercial broiler starter feed for one week before being randomly allotted to various dietary treatments. The birds were fed the experimental starter diet for 3 weeks and the experimental finisher diets for 4 weeks. With the exception of lymphocytes and neutrophils, there was no significant differences (p>0.05) in the haematological parameters across the dietary treatments. 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