Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Effects of Supplementing Coated Vitamin C+E with Cottonseed on Rumen Fermentation and Growth Performance and Blood Metabolites in Hanwoo Steers Fed Fermented Feedstuff

발효사료에 대한 보호처리한 Vitamin C+E 및 면실의 첨가가 반추위 발효특성과 거세한우의 육성성적 및 혈액성상에 미치는 영향

  • Published : 2006.12.31
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Abstract

This study was conducted to examine the effects of supplementing coated vitamin C+E with cottonseed on rumen fermentation and body weight gain, blood metabolites and hormone concentrations in Hanwoo steers fed fermented feedstuff. Experiments were done with two treatment groups, T1 without any supplements and T2 supplemented with coated vitamin C+E and cottonseed. Ruminal pH was lower in T2 than in T1 at 3h after morning feeding (p<0.05), but was higher in T2 than in T1 at 6 and 9h after morning feeding (p<0.05). Ruminal ammonia concentration was higher in T2 than in T1 for 12h after morning feeding (p<0.05). Concentrations of acetate, propionate, butyrate and total-VFA were higher in T2 than in T1 at 3h after morning feeding (p<0.05), but were lower in T2 than in T1 at 9 and 12h after morning feeding (p<0.05). Average daily gain and concentrations of blood metabolites and hormones between T1 and T2 were similar. Results indicate that supplementation of coated vitamin C+E and cottonseed to fermented feedstuff affects on ruminal pH, ammonia and VFA. But it has no influences on body weight gain and concentrations of blood metabolites and hormones in Hanwoo steers.

본 연구는 발효사료에 대한 보호처리한 vitamin C+E 및 면실의 첨가가 반추위 발효특성과 거세한우의 증체, 혈중 대사물질 및 호르몬 농도에 미치는 영향을 구명하고자 실시하였다. 시험구 처리는 발효사료를 급여하는 T1구와 보호처리한 vitamin C+E 및 면실 첨가 발효사료를 급여하는 T2구의 2처리로 하였다. 사료급여 후 3시간의 반추위 pH는 T1구에 비해 T2구에서 낮았으나(p<0.05), 6 및 9시간에는 T1구에 비해 T2구에서 높았다(p<0.05). 사료급여 후 12시간 동안 반추위 ammonia 농도는 T1구에 비해 T2구에서 높았다(p<0.05). 사료급여 후 3시간의 acetate, propionate, butyrate 및 total-VFA 농도는 T1구에 비해 T2구에서 높았으나(p<0.05), 9 및 12시간에는 T1구에 비해 T2구에서 낮았다(p<0.05). 일당증체량과 혈중 대사물질 및 호르몬의 농도는 처리간에 차이가 없었다. 이상의 결과에서 발효사료에 대한 보호처리한 vitamin C+E 및 면실의 첨가는 반추위 pH, ammonia 및 휘발성지방산 농도에는 영향을 미치지만, 거세한우의 증체와 혈중 대사물질 및 호르몬 농도에는 영향을 미치지 않는 것으로 판단된다

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References

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