Comparative Effects of Supplementation of Three Probiotics on Growth and Haematological Profiles of Finishing Broiler Chickens

The study was conducted on one hundred and twenty (120) Anak-2000 broiler chickens for four weeks to assess the comparative effects of supplementation of three commercial probiotics (Biocyn ®, Grow-fast ® and El-rox®) on growth and haematological profiles in finishing phase. The birds were randomly divided into four treatments (T0, T1,T2 and T3) with thirty (30) birds per treatment. The control group(T0) was fed only the commercial ration(Vital feed®) and the treatment groups; T1,T2 and T3 were respectively fed in addition to the commercial ration; Biocyn® , Grow-fast® and El-rox® @ 10g/L each, every day in drinking water for four weeks. Data on the mean final body weight, mean weekly feed intake, mean weekly weight gain, mean feed conversion ratio, internal organs traits and haematological parameters (Packed Cell Volume (PCV) and Differential Leukocyte Count (DLC)) were obtained. All the data collected from the treatment groups were significantly different (P≤0.05) from the control group except the mean initial body weight (P˃0.05). All the growth parameters measured were not significantly different (P˃0.05) among the treatment groups except the mean feed conversion ratio (P≤0.05) of T3. The internal organ traits and the haematological parameters among the treatment groups were significantly different except monocyte (P˃0.05). It was concluded that supplementation of these three probiotics has significant effects on growth, PCV and DLC when compared to the control group but not significantly different among themselves except on the internal organ traits, PCV, lymphocyte, heterophil and eosinophil.

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