SUPPLEMENTATION OF PROBIOTIC IN GROWING-FINISHING PIG DIETS

Abstract

Use of probiotic (Toyocerin) Composed of B. tyoi 1 x 10⁹ spore/gram in growing-finishing pigs (Largewhite x Landrace) aged 9 weeks for growing and 16 weeks for finishing were divided into 5 groups of 8 animals each containing an equal number of males and females. Each group of the animal was randomly fed one of the experimental diets as followed: 16 percent diet, 14 percent diet, 14 percent diets protein supplemented with 0.05, 0.1 and 0.2 percent of probiotic in growing pig and 14 percent diet, 12 percent diet, 12 percent diets protein supplemented with 0.03, 0.05 and 0.1 percent of probiotic in finishing pig diet. The animals were kept individually where feed and water were provide ad libitum.

The results of this study, growing pigs: Average daily gain and feed conversion ratio of pigs with experimental diets were 0.659, 0.657, 0.650, 0,646 and 0.618 respectively and 2.92, 2.94, 2.93, 2.67 and 3.08 respectively. Although the differences were not statistically significant, the pigs fed 14% protein supplemented with 0.1% probiotic tended to have the better of feed conversion ratio than any other and cost of production was lower than any other diets in this study.

Finishing Pig: Average daily gain and feed conversion ratio of pigs above diets were 0.800, 0.774, 0.742, 0.765 and 0.718 respectively and 3.19, 3.23, 3.14, 3.15 and 3.28 respectively but the different were not statistically significant. Finishing pig which fed the diet 12% protein supplemented with 0.03 and 0.05% of probiotic tended to have feed conversion ratio comparable to those fed 14% protein diet but the cost of production of pigs which fed 12 percent protein diet supplemented with 0.03% probiotic product was lower than any other diets in this study.