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KMID : 1025520050470040555
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Journal of Animal Science and Technology
2005 Volume.47 No. 4 p.555 ~ p.564
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Effect of Dietary Zeolite Treated on the Performance and Carcass Characteristics in Finishing Pigs
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Kim J.-H.
Kim Sam-Churl
Ko Y.-D.
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Abstract
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This study was conducted to investigate the effect of dietary supplementation of zeolite on growth performance, carcass characteristics and fecal ammonia gas release in the finishing pigs. A total of 120 crossbred finishing pigs (50.2±1.4kg, Landrace x Yorkshire x Duroc) were assigned to 4 treatments and randomly divided into 12 groups. They were divided between early finishing period (50~80kg) and late finishing period (80-120kg). Finishing pigs were fed on a basal diet supplemented with 0, 1, 2 and 4% levels of zeolite. Average daily gain and feed conversion were significantly (P<0.05) improved by the dietary supplementation of 4% zeolite compared with other treatments during overall period. In the finishing periods, ammonia gas emission was reduced (P<0.05) in 4% zeolite treatment more than that of the other treatments. Carcass weight and back fat thicknesses were not affected by zeolite treatments. But, the appearance of A grade pork was increased by the dietary supplementation of 4% zeolite. Feed cost was linearly decreased by increasing the supplementation of zeolite. According to this study, 4% supplement of zeolite is suitable for the improvement of carcass quality and feed conversion, the reduction of fecal ammonia gas emission and feed cost per body weight gain.
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KEYWORD
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Zeolite, Finishing pig, Performance, Carcass characteristic, Ammonia gas
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