Effect of Baker’s Yeast on the Hematology, Serum Biochemistry and Growth Performance of Broilers

Abstract

The most important and major baker yeast is Saccharomyces cerevisiae, which is cheap and easily available source of B-complex, vitamins, amino acid and mineral. The main objectives of this study were to determine the effect of Saccharomyces cerevisiae on growth performance, weight gain, feed intake and feed conversion ratio in broiler. This experiment was conducted at experimental poultry farm of Faculty of Veterinary and Animal Sciences, Gomal University, D. I. Khan. This experiment was performed on one fifty (n=150) broilers. The experiment design and all procedures were approved from animal ethical committee of Gomal University, D. I. Khan. The Saccharomyces cerevisiae contained 8×10⁹ cfu/g. This SC was thoroughly mixed in the basal diet. The experimental chicks of all groups were fed with starter at first phase of study in which Saccharomyces cerevisiae was mixed @ rate of 0.5 gm/kg feed expect group A. However, from second phase of study, the Saccharomyces cerevisiae was mixed in feed: @ dose rate of 1.5 gm/kg feed in group B, 2 gm/kg feed in group C, 2.5 gm/kg feed in group D and 3 gm/kg feed in group E. However, the group A was kept as a control group with no addition of Saccharomyces cerevisiae in its feed. The parameters we studied in this experiment was body weight gain, feed intake, feed conversion ratio, hematological and biochemical parameters. The results showed that group E had gain significantly highest body weight (1776±62 gm/birds; P<0.001) as compared to other treatment and control groups throughout the research. The results showed that group E chicken had significant daily feed intake (P<0.001) as compared to other treatment and control groups during experimental trail, and the feed conversion ratio was improved after feeding Saccharomyces cerevisiae. The hematological values of RBCs, WBCs, HB level and MCV was significantly improved in group E as compared to other groups however ESR and PCV was non- significant between groups.

Key words: Poultry, Saccharomyces cerevisiae, Hematological parameters, Yeast, Biochemical parameters, weight gain, FCR