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KMID : 1025520030450060949
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Journal of Animal Science and Technology
2003 Volume.45 No. 6 p.949 ~ p.956
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Effects of Extruded Corn in Nursery and Finishing Pigs
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한영근/Han, Y. K.
김인호/홍종욱/권오석/민병준/이원백/손경승/Kim, I. H./Hong, J. W./Kwon, O. S./Min, B. J./Lee, W. B./Shon, K. S.
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Abstract
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For the Exp. 1, a total of sixty pigs(15.95 ± 0.09㎏ average initial body weight) were used in a 28-d growth assay to determine the effects of extruded chinese corn on growth performance and nutrient digestibility in nursery pigs. Dietary treatments included 1) UCORN(U.S. com-SBM based diet), 2) CCORN(Chinese com-SBM based diet) and 3) ECCORN(Extruded Chinese com-SBM based diet), Overall period, average daily gain of pigs fed ECCORN diet was higher than that of pigs fed CCORN diet(547 vs 522 g／d), however, there was not significant difference. On day 10 of the experiment, pigs fed UCORN and ECCORN diet had significantly increased in DM and DE digestibilities compared to pigs fed CCORN diet(p＜0.05). Also, on day 24 of the experiment, pigs fed UCORN and ECCORN diet had a significant increase in DM digestibility compared to pigs fed CCORN diet(P＜0.05). Pigs fed ECCORN diet had significnatly increased DE digestibility compared to pigs fed CCORN deit(p＜0.05). For the Exp. 2, three cannulated barrows(54.09㎏ average initial body weight) were used to determine the apparent ileal digestibilities of amino acids and nutrient digestibility of extruded corn in finishing pigs. Dietary treatments were the same as in Exp. 1. Apparent ileal digestibility of cystine was greater for UCORN and ECCORN than for CCORN(p＜0.05). Apparent digestibility of DM at the total tract was greater for UCORN and ECCORN than for CCORN(P＜0.05). Pigs fed UCORN and ECCORN diet had a significant increase in apparent total tract digestibility of N compared to pigs fed CCORN diet(P＜0.05). In conclusion, the results obtained from these feeding trials suggest that the extruded com for nursery pigs had affected growth performance and DM and DE digestibilities. In finishing pigs, extruded corn was an effective means to improve apparent total tract digestibilities of DM and N.
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KEYWORD
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