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KMID : 1025520100520010023
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Journal of Animal Science and Technology
2010 Volume.52 No. 1 p.23 ~ p.28
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Effect of Probiotics in Diet on Growth Performance, Nutrient Digestibility, Fecal Microbial Count, Noxious Gases Emission from the Feces, and Blood Profile in Early-Finishing Pigs
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Jung Ji-Hong
Hong Seong-Min
Kim Hyo-Jin
Qing Wei Meng
Kim In-Ho
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Abstract
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This study was conducted to evaluate the effects of probiotics supplementation on growth performance, nutrient digestibility, fecal concentrations of Lactobacillus and Escherichia coli, emission of noxious gases from the feces, and circulating concentrations of the blood cells in early-finishing pigs. A total of sixty pigs[(Landrace×Yorkshire)×Duroc] (initial body weight 56.48±1.66kg) were used for the 28 days feeding trial. Dietary treatments included 1) CON(basal diet), 2) P1(CON+0.1% Agariemycetes) and 3) P2(CON+0.2% Agariemycetes). There were three dietary treatments with five replicate pens per treatment and four pigs per pen. There was no significant difference in ADG(average dairy gain) among the treatments(P>0.05). The gain/feed ratio was higher in P2 than CON(P<0.05). The P2 showed the highest digestibility of dry matter and energy(P<0.05). No significant difference was observed in the fecal Lactobacillus counts but fecal Escherichia coli population of P2 was lower than that of CON (P<0.05). The ammonia, H2S and total mercaptan was higher in P1 and P2 than CON(P<0.05). Blood characteristics were not affected by probiotics(P>0.05) supplementation. In conclusion, the results showed that dietary supplementation of probiotics at 0.2% level affected gain/feed ratio, dry matter and energy digestibility; reduced fecal Escherichia coli and emission of fecal noxious gases in finishing pigs.
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KEYWORD
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Probiotics, Digestibility, Fecal bacteria, Fecal noxious gas, Early finishing pig
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