Abstract
The study was conducted to investigate the replacement value of enzyme fortified feather meal on haematological and serum biochemical indices of layer chickens. A total of one hundred and fifty (150) Isa brown layers were used for the experiment. The birds were randomly assigned to five treatment groups in a completely randomized design, which was further replicated three times. Experimental diets 1,2,3,4,5, were formulated such that diet 1 contained 0% enzyme fortified feather meal, 2,3,4,5 contained 1, 2, 3 and 4% levels of enzyme fortified feather meal respectively. Blood samples were collected from the birds, one sample from each replicate making a total of nine samples per treatment for haematological and biochemical assessment. Results obtained showed significant difference (P<0.05) on all haematological indices and for serum biochemical indices except for albumin, globulin, creatinine, K, bicarbonate and chloride ions which recorded non-significant difference. The study suggested that enzyme fortified feather meal could be used in layer’s diet up to 4% without any adverse effect.
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