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Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2003;16(9): 1326-1331.
https://doi.org/10.5713/ajas.2003.1326    Published online January 1, 2003.
Evaluation of Toyocerin, a Probiotic Containing Bacillus toyoi Spores, on Health Status and Productivity of Weaned, Growing and Finishing Pigs
S. C. Kyriakis, I. Georgoulakis, A. Spais, C. Alexopoulos, C. C. Miliotis, S. K. Kritas
The aim of the study was to assess the efficacy of Toyocerin, a probiotic containing Bacillus toyoi spores, on the health status and productivity of pigs, during nursery, growing and finishing phases. On a commercial farrow-to-finish farm in Greece, 3 experimental groups were formed, each of 72 weaned piglets. The pigs of the first group (T1 group; negative controls) received normal feed with no antimicrobials or probiotics, the pigs of the second group (T2 group) received the same type of feed but supplemented with 1.0 109, 0.5 109 and 0.2 109 spores per kg of feed at weaning, growing and finishing stage, respectively, and the pigs of the third group (T3 group) were fed with Toyocerin at the dose of 1.0 109 spores per kg of feed during the entire fattening period (weaning, growing and finishing stages). The results have shown that, compared to the controls, Toyocerin treated pigs had reduced incidence of post-weaning diarrhoea (p<0.05). Enterotoxigenic strains of Escherichia coli were detected in faecal samples of 0% to 25% of pigs of the treated groups, but in 33.5% to 50% of pigs of the non-treated group (p<0.05). Over the negative controls, a significant improvement of weight gain (4.5% and 8.3% for T2 and T3 groups, respectively), and of feed conversion ratio (6.6% and 13.0% for T2 and T3 groups, respectively) was observed. The 76.5% of the carcasses of the T3 group was classified in the top three categories of the EUROP scale (S, E and U), whilst the respective figures were 47.8% for T2 group and only 10.5% for T1 group (p<0.05).
Keywords: Probiotics; Pig; Diarrhoea; Productivity

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