dc.identifier.citation | Njeru Karimi, R. Wahome, Joyce Maina and P. Kuria (2011). Effects Of Enzymes And Probiotics On Growth Performance And Gastrointestinal Morphology In Broiler Chicken. A paper presented at aGRO2011 Biennial Conference at the College of Agriculture and Veterinary Sciences, Upper Kabete Campus, University of Nairobi, on 26 - 28th September | en_US |
dc.description.abstract | A study was done to investigate the effect of yeast culture (Diamond V XPC) and alloenzyme
(Allzyme SSF) on the performance and gut morphology in broiler chicken. One hundred and
sixty broiler chicks were fed on diets formulated according to Kenya Bureau of Standards
(KeBS) specifications and supplemented with either alloenzyme (0.02%) or yeast culture. Four
treatment diets were formulated. Diet 1 was supplemented with yeast culture, Diet 2 both yeast
culture and alloenzyme, Diet 3 alloenzyme only and Diet 4 was the control diet and yeast culture
and enzymes were not added. The birds were slaughtered when they were 21 and 42 days old and
the lengths of rectum, caeca, ileum, duodenum, jejunum and the weights of the gizzard, liver and
bursa of Fabricius were recorded. Perfomance parameters such as feed intake, weight gain, body
weight, Feed Conversion Ratio (FCR) and Protein Efficiency Ratio (PER) were also recorded on
the 21st and d 42nd day of age. There were no significant effects (P > 0.05) of yeast culture on
growth performance and on gut morphology across treatments. However, birds fed on diets
supplemented with yeast culture had a trend of increased performance compared to the control
diet. Alloenzymes had no effects on broiler performance and gut morphology. | en_US |