Greener Journal of Agricultural Sciences

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Greener Journal of Agricultural Sciences Vol. 7 (3), pp. 074-081, May 2017.

 ISSN: 2276-7770 

Research Article

Manuscript Number: 052217067



Effect of Dietary Inclusion of Polyalthia longifolia Leaf Meal as Phytobiotic Compared with Antibiotics on the Nutrient Retention, Immune Response and Serum Biochemistry of Broiler Chicken


Alagbe J.O.


Poultry department at Dan-malafia Farms Limited, Ibadan.


A 45-day feeding trial was conducted to evaluate the effect of dietary inclusion of Polyalthia longifolia leaf meal as phytobiotic compared with antibiotics on the nutrient retention, immune response and serum biochemistry of broiler chicks fed corn-soya meal diet. One hundred and fifty day old chick (Ross 308) of mixed sex was divided into five groups with three replicates, each of ten birds in a completely randomized design (CRD). Group 1was fed on basal diet without feed additives, group 2 was fed on basal diet supplemented with the antibiotic (Erythromycin) at 25mg/kg), group 3,4 and 5 were fed basal diets supplemented with Polyalthia longifolia leaf meal (PLM) at levels 1.5, 2.5 and 3.5% respectively. The basal diet was formulated to meet the nutritional requirements of growing birds according to NRC (1994), experimental parameters covered nutrient retention, immune response and some serum biochemical indices. The result revealed that there was a no significant (P>0.05) differences among all treatments in the values of protein retention, fat retention and the serum parameters measured. However, significant influences (P<0.05) were observed for fibre retention and the immune response of the birds to ND and IBD after vaccination.

It can be concluded based on the data from the nutrient retention, immune response and those from serum biochemical parameters that PLM could be incorporated up to 3.5% level in the diet of broiler chickens.


Key words:  broiler chickens, serum biochemistry, nutrient retention, immune response.

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