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Effects of Extruded Corn in Nursery and Finishing Pigs

자돈 및 비육돈에 있어 옥수수의 가공 효과

  • Han, Y.K. (Livestock Research Institute, National Agricultural Cooperatives Federation) ;
  • Kim, I.H. (Department of Animal Resource & Sciences, Dankook University) ;
  • Hong, J.W. (DAESANG FEED CO., LTD.) ;
  • Kwon, O.S. (Department of Animal Resource & Sciences, Dankook University) ;
  • Min, B.J. (Department of Animal Resource & Sciences, Dankook University) ;
  • Lee, W.B. (Department of Animal Resource & Sciences, Dankook University) ;
  • Shon, K.S. (Department of Animal Resource & Sciences, Dankook University) ;
  • Lee, J.H. (Easy Bio System, Inc.)
  • 한영근 (농협중앙회 축산연구소) ;
  • 김인호 (단국대학교 동물자원과학과) ;
  • 홍종욱 ((주)대상사료) ;
  • 권오석 (단국대학교 동물자원과학과) ;
  • 민병준 (단국대학교 동물자원과학과) ;
  • 이원백 (단국대학교 동물자원과학과) ;
  • 손경승 (단국대학교 동물자원과학과) ;
  • 이지훈 ((주)이지바이오시스템)
  • Published : 2003.12.31

Abstract

For the Exp. 1, a total of sixty pigs(15.95${\pm}$0.09kg 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. corn-SBM based diet), 2) CCORN(Chinese corn-SBM based diet) and 3) ECCORN(Extruded Chinese corn-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 significantly increased DE digestibility compared to pigs fed CCORN diet(P〈0.05). For the Exp. 2, three cannulated barrows(54.09kg 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 corn 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.

Keywords

Corn;Extrusion;Availability;Pigs

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