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Effects of Total Mixed Fermentation Feeds Based on Rice-straw and Six Forage Crops on the Productivity of Holstein Cows

청예사료작물과 볏짚 위주의 완전배합발효사료 급여가 Holstein 착유우의 생산성에 미치는 영향

  • Lee, H. J. (National Livestock Research Institute) ;
  • Kim, H. S. (National Livestock Research Institute) ;
  • Ki, K. S. (National Livestock Research Institute) ;
  • Jeong, H. Y. (National Livestock Research Institute) ;
  • Baek, K. S. (National Livestock Research Institute) ;
  • Kim, J. S. (National Livestock Research Institute) ;
  • Cho, K. K. (Jinju National University) ;
  • Cho, J. S. (School of Agricultural Biotechnology, Seoul National University) ;
  • Lee, H. G. (School of Agricultural Biotechnology, Seoul National University) ;
  • Woo, J. H. (Section on Biophysical Chemistry, Laboratory of Molecular Biology, National Institute of Mental Health) ;
  • Choi, Y. J. (Section on Biophysical Chemistry, Laboratory of Molecular Biology, National Institute of Mental Health)
  • 이현준 (축산기술연구소) ;
  • 김현섭 (축산기술연구소) ;
  • 기광석 (축산기술연구소) ;
  • 정하연 (축산기술연구소) ;
  • 백광수 (축산기술연구소) ;
  • 김준식 (축산기술연구소) ;
  • 조광근 (진주산업대학교) ;
  • 조재순 (서울대학교 농생명공학부) ;
  • 이홍구 (서울대학교 농생명공학부) ;
  • 우정희 (미국 메릴랜드주 국립보건원 분자생물학연구실) ;
  • 최윤재 (미국 메릴랜드주 국립보건원 분자생물학연구실)
  • Published : 2003.02.28

Abstract

This experiment was carried out to evaluate the value of total mixed fermentation feeds(TMFF) as completely mixed ration and to observe the effect of various kinds of TMFF on the palatability, feed intake, and milk performance in Holstein cows. The dry matter (DM) content of TMFF used in the experiment was 23.98-28.42% range, and CP, TDN, ADF and NDF were 16.2${\sim}$19.2%, 58.3-65.1%, 34.4-39.6% and 46.9${\sim}$49.9% levels, respectively. The relative feed value (RFV) in rape-, alfalfa-, grass-, oat-, corn-TMFF groups were 138.6, 133.9, 116.5, 111.8, 111.4 and 108.1, respectively. Among these groups, RFV of rye-TMFF group was lowest. Dry matter disappearance(DMD) showed 0.8${\sim}$.9% to the all kinds of TMFF groups. The pH was 3.89${\sim}$.87 and $NH_3$-N concentration was 6.93-8.66 mg/$d\ell$. The acetic acid concentration in the raw material of TMFF showed low level of 0.19${\sim}$0.57%, lactic acid showed high level of 1.17${\sim}$3.21% and butyric acid was very high as 0.03${\sim}$0.32%. Therefore, these results provide evidence that the quality of TMFF was not so bad. In the daily fresh matter intake on the alfalfa-, grass-, rape-, corn-, oats- and rye-TMFF were showed 62.85, 60.48, 58.04, 57.11, 54.61 and 45.74 kg respectively. All TMFF showed high palatability as daily dry matter intake of 1.95 to 2.90% by body weight of experimental cows. Body condition score(BCS) was gradually increased in during 60 days of the experiment term. Average daily gain(ADG) showed about 140.0${\sim}$326.7g. In alfalfa-TMFF group, the ADG was higher than in the other groups (p<0.05). Also, the increase in BCS was observed in grass-TMFF group (3.07 to 3.34) and rye-TMFF group was decreased in 3.07 to 3.34 (p<0.05). The milk yield appropriately showed a range of 16.16${\sim}$18.95 kg in all groups. Among these groups, alfalfa-TMFF group was highest(P<0.05). Average milk fat contents showed high levels of 4.06${\sim}$4.79% and the level was high in order of rape-, grass-, corn-, alfalfa-, rye- and oats-TMFF. Milk protein was highest in forage-TMFF and level of lactose in milk was approximately 4.56% in overall groups. Solid non fat(SNF) and total solid(TS) contents were 8.75% and 12.8%, respectively. However, milk composition was not significantly affected by TMFF.

Keywords

TMFF;BCS;ADG;Daily milk yield;Milk composition;Palatability

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