Abstract
This study was conducted to examine the effect of feed probiotics substituents in serum biochemistry and carcass characteristics of tropically bred exotic turkey. A total of 80 British united turkey (BUT) were assigned to 4 dietary treatments consisting of 4 supplemental levels of equal mixtures of RoxazymeG2 ® at 200 ppm, 250 ppm, 300 ppm and 350 ppm. The polynomial contrast (linear and quadratic) was applied to determine the effect of inclusion of varying mixtures of enzyme and yeast supplementations using SPSS 1999. At starter phase (5-8 weeks), turkeys fed diet containing combination of 200 ppm enzyme and yeast recorded highest (P 0.05) effect of enzyme and yeast supplementation on live weight, dressing percentage, weights of head, neck, drum stick, thigh, breast, lungs, liver, heart, kidney, spleen, gizzard, proventriculus, crop and abdominal fat except back weight and wing weight that were significantly (P<0.05) affected by dietary treatment. In conclusion, inclusion of feed additives in MSP diet such as enzymes and yeast is a good measure in enhancing serum biochemistry and production performance of exotic turkey bred in the humid tropics.
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