DOI QR코드

DOI QR Code

Examination of Availability of Whole Crop Silage TMR for Late Fattening Hanwoo Steers in the Cattle

비육후기 거세한우 용 사료작물 사일리지 TMR의 소 체내 이용성 조사

  • Jugder, Shinekhuu (Animal Breeding and Biotechnology Department, Mongolian State University of Agriculture) ;
  • Choi, Seong Ho (Department of Animal Science, Chungbuk National University) ;
  • Lee, Jeong Ju (Department of Animal Science, Chungbuk National University) ;
  • Lee, Gyeong Geun (Department of Animal Science, Chungbuk National University) ;
  • Lee, Sang Suk (Department of Animal Resources, Sunchon National University) ;
  • Song, Man Kang (Department of Animal Science, Chungbuk National University)
  • ;
  • 최성호 (충북대학교 농업생명환경대학 축산학과) ;
  • 이정주 (충북대학교 농업생명환경대학 축산학과) ;
  • 이경근 (충북대학교 농업생명환경대학 축산학과) ;
  • 이상석 (순천대학교 생명산업과학대학 동물자원학과) ;
  • 송만강 (충북대학교 농업생명환경대학 축산학과)
  • Received : 2013.05.22
  • Accepted : 2013.05.30
  • Published : 2013.06.30

Abstract

The present study was conducted with three ruminally cannulated non-lactating Holstein cattle in a $3{\times}3$ Latin square design to determine the fermentation characteristics and effective degradability (ED) in the rumen, as well as the whole tract digestibility of whole crop silage based total mixed ration (TMR) in comparison with conventional separate feeding of concentrate and rice straw for late fattening Hanwoo steers. The cattle in each group were fed separate feeding of concentrate and rice straw (control), whole crop barley silage based TMR (BS-TMR) or whole crop rye silage based TMR (RS-TMR). The ruminal fermentation characteristics such as pH, ammonia-N concentration and total volatile fatty acid were not affected by the experimental diet. The molar portion of acetate ($C_2$) was lowest in rumen fluid 1 h after feeding when cattle were fed BS-TMR (p<0.033). Molar proportions of propionate ($C_3$), butyrate and $C_2/C_3$ were not influenced by the experimental diet. There were no differences in effective degradability or whole tract digestibility of feed components among any of the experimental diets. The data obtained from the metabolism trial indicate that the feeding value of TMR with BS or RS is equal to that of a conventional separate feeding of concentrate and rice straw.

본 연구는 국내에서 생산된 주요 동계 사료작물인 청보리 및 청호밀 사일리지를 이용하여 거세 한우의 비육후기(25~30개월 령) 용으로 조제된 TMR의 소 체내 이용성을 배합사료 및 볏짚으로 구성된 관행 사료와 비교하고자 반추위 누관이 장착된 소 3두를 이용하여 $3{\times}3$ Latin square design 방법으로 실시되었다. 시험동물에는 비육 후기용 배합사료 및 볏짚을 분리 급여하였거나 (대조구) 청보리 사일리지 TMR (BS-TMR) 또는 청호밀 사일리지 TMR (RS-TMR)을 급여하였다. 전체 채취시간에 걸쳐 반추위액의 pH, 암모니아 농도 및 총 휘발성지방산 농도는 시험사료간 차이가 없었다. Acetate ($C_2$)의 조성 비율은 사료 급여후 1시간에서 청보리 사일리지를 섭취한 처리구 (BS-TMR)에서 낮은 (p<0.033) 값을 제외하고는 대부분의 채취시간에서 시험사료 간 차이가 없었다. Propionate ($C_3$) 및 butyrate 조성비율과 $C_2/C_3$ 비율 역시 모든 채취시간에서 시험사료간 차이가 없었다. 사료 내 주요 성분의 반추위 유효분해율과 전장소화율은 전체 시험사료 간은 물론 BS-TMR과 RS-TMR 간에도 차이가 없는 것으로 나타났다. 본 대사시험 결과로 미루어보아 청보리 및 청호밀로 제조된 TMR의 급여 가치가 배합사료 및 볏짚의 분리급여와 차이가 없는 것으로 여겨진다.

Acknowledgement

Supported by : 농림수산식품기술기획평가원

References

  1. AOAC. 1991. Official Methods of Analysis(15th ed.). Association of Official Analycal Chemists, Washington, D.C.
  2. Charlot, G. 1964. Calorimetric determination of elements. Principles and methods. Elsvier Publishing Co.
  3. Cho, W.M., Cho, Y.M., Hong, S.K., Chung, E.S., Lee, J.M. and Yoon, S.K. 2000. Effect of feeding whole crop barley silage on growth performance, feed efficiency and meat quality in Hanwoo steers. Journal of Animal Science and Technology. 42:181-188.
  4. Chung, K.W., Cho, I.H., Whang, B,S. and Lee, S.H. 2009. Effects of feeding total mixed rations containing different winter forage crop silages on feed intake, nutrient digestibility and blood characteristics in Korean black goats. Journal of the Korean Society of Grassland and Forage Science. 29:389-398. https://doi.org/10.5333/KGFS.2009.29.4.389
  5. Duncan, D.B. 1955. Multiple range and multiple F tests. Biometrics. 11:1-42. https://doi.org/10.2307/3001478
  6. Fawcett, J.K. and Scott, J.E. 1960. A rapid and precise method for the determination of urea. Journal Clinical. Pathology. 13:156-163. https://doi.org/10.1136/jcp.13.2.156
  7. Harrison, J.H. and Blauwiekel, R. 1994. Ferment- ation and utilization of grass silage. Journal of Dairy Science. 77:3209-3235. https://doi.org/10.3168/jds.S0022-0302(94)77264-7
  8. Jin, K.L., Kim, J.K., Qin, Wei-zw, Chung, J., Chang, S.S., Sohn, Y.S., Choi, C.W. and Song, M.K. 2012. Effect of feeding whole crop barley silage- or whole crop rye silage based-TMR and duration of TMR feeding on growth, feed cost and meat characteristics of Hamwoo steers. Journal of Animal Science Technology. 54:111-124. https://doi.org/10.5187/JAST.2012.54.2.111
  9. Kellems, R.O., Jones, R., Andrus, D. and Wallentine, M.V. 1991. Effect of moisture in total mixed rations on feed consumption and milk production and composition in Holstein cows. Journal of Dairy Science. 74:929-932. https://doi.org/10.3168/jds.S0022-0302(91)78242-8
  10. Kim, K.H., Kim, K.S., Lee, S.C., Oh, Y.K., Chung, C.S. and Kim, K.J. 2003. Effect of total mixed rations on ruminal characteristics, digestibility and beef production of Hanwoo steers. Journal of Animal Science and Technology. 45:387-396. https://doi.org/10.5187/JAST.2003.45.3.387
  11. Lee, D.Y., Ko, J.Y., Choi, N.J., Lee, S.S., Song, J.Y., Lee, S.Y., Park, S.H., Sung, H.K. and Ha, J.K. 2003. Effects of type of TMR on rumen fermentation characteristics and nutrient digestibility in sheep. Journal of Animal Science and Technology. 45:805-812. https://doi.org/10.5187/JAST.2003.45.5.805
  12. Orskov, E.R. and McDonald, I. 1979. The estimation of Protein degradability in the rumen from incubation measurements weighted according to rate of passage. Journal of Agricultural Science (Camb.). 92:499-506. https://doi.org/10.1017/S0021859600063048
  13. Qin, W.Z., Jin, G.L., Kim, J.K., Oh, Y.K., Lee, S.C. and Song, M.K. 2010. Estimation of availability of whole crop barley and Rye Silage TMR in the Cattle. Journal of the Korean Society of Grassland and Forage. 30:343-354. https://doi.org/10.5333/KGFS.2010.30.4.343
  14. SAS. 2002. SAS Procedures Guide release 9.0 SAS institute Inc., Cary, NC. U.S.
  15. Seo, S., Kim, W.H., Kim, K.Y., Choi, K.J., Ji, H.C., Lee, S.H., Lee, K.W. and Kim, M.J. 2011. Forage productivity and quality of domestic Italian ryegrass and barley varieties. Journal of the Korean Society of Grassland and Forage Science. 31:261-268. https://doi.org/10.5333/KGFS.2011.31.3.261
  16. Shinekhuu, J., Jin, K.L., Ji, B.J., Li, X. Z., Oh, Y.K., Hong, S.K. and Song, M.K. 2009. Protein fractionation of whole crop silages, and effect of borate-phosphate buffer extraction on in vitro fermentation characteristics, gas production and degradation. Journal of Animal Science and Technology. 51:369-378. https://doi.org/10.5187/JAST.2009.51.5.369
  17. Van Soest, P.J., Robertson, J.B. and Lewis, B.A. 1991. Methods for fiber, neutral detergent fiber, and non starch polysaccharide in relation to animal nutrition. Journal of Dairy Science. 74: 3583-3597. https://doi.org/10.3168/jds.S0022-0302(91)78551-2
  18. Yoon, S.G. and Kazuo, A. 2000. Effect of maturing stages on chemical composition for feed and in vitro dry matter digestibility of triticale. Journal of the Korean Society of Grassland and Forage Science. 20:227-232.
  19. Yoon, S.K., Park, T.I., Seo, J.H., Kim, K.H., Song, T.H., Park, K.H. and Han, O.K. 2009. Effect of harvest time and cultivars and forage yield and quality of whole crop barley. Journal of The Korean Society of Grassland and Forage Science. 29:121-128. https://doi.org/10.5333/KGFS.2009.29.2.121