Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Nutrient analysis and in vitro rumen fermentation of commercial formulated concentrates for finishing Hanwoo steers

  • Kim, Hanbin (Life and Industry Convergence Research Institute, Department of Animal Science, Pusan National University) ;
  • Lee, Songhee (Life and Industry Convergence Research Institute, Department of Animal Science, Pusan National University) ;
  • Jeong, Soohyun (Life and Industry Convergence Research Institute, Department of Animal Science, Pusan National University) ;
  • Park, Joongkook (Institute of Livestock, Nonghyup Co. Ltd.) ;
  • Shin, Taeksoon (Life and Industry Convergence Research Institute, Department of Animal Science, Pusan National University) ;
  • Cho, Byungwook (Life and Industry Convergence Research Institute, Department of Animal Science, Pusan National University) ;
  • Cho, Seongkeun (Life and Industry Convergence Research Institute, Department of Animal Science, Pusan National University) ;
  • Kim, Byeongwoo (Life and Industry Convergence Research Institute, Department of Animal Science, Pusan National University) ;
  • Seo, Jakyeom (Life and Industry Convergence Research Institute, Department of Animal Science, Pusan National University)
  • Received : 2016.06.30
  • Accepted : 2016.08.30
  • Published : 2016.12.31
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Abstract

The objective of this study was to evaluate the nutritional value of commercial compound feeds for late finishing Hanwoo steers using detailed chemical analysis and an in vitro rumen fermentation trial. A total of 4 different feeds were selected and used to conduct a chemical analysis for their nutrient contents. The largest variation in nutrients contents among experimental feeds was found in ether extract and the smallest one was found in total digestible nutrients. Commercial feeds C and D had a higher energy value than the others. Even if C and D had a similar feed energy value, the components used to increase energy differed between them (non-fiber carbohydrate [NFC] for C; ether extract for D). In the in vitro trial, no significant difference was observed in dry matter in vitro digestibility and gas production between treatments. However, the highest ammonia concentration (p < 0.05) was observed in C and D feeds. The low acetate to propionate ratio observed in C feeds (p < 0.01) suggested that this feed had high starch based carbohydrates that NFC degrading bacteria used to produce more propionate. It is important to provide nutritional information to farmers so that they can select the appropriate commercial feeds to suit their own feeding strategies. This study might give supporting information to farmers for a more educated, and better, selection of feeds. Further in vivo studies should be conducted to evaluate the effects of different commercial feeds on growth performances in late finishing Hanwoo steers.

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References

  1. AOAC. 2005. Official methods of analysis of AOAC international. Association of official analytical chemists international, Gaithersburg, MD, USA.
  2. Chaney AL, Marbach EP. 1962. Modified reagents for determination of urea and ammonia. Clinical Chemistry 8:130-132.
  3. Dehority BA. 2003. Rumen microbiology. Nottingham University Press, UK.
  4. Erwin ES, Marco GJ, Emery EM. 1961. Volatile fatty acid analyses of blood and rumen fluid by gas chromatography. Journal of Dairy Science 44:768-771.
  5. Firkins JL, Yu Z, Morrison M. 2007. Ruminal nitrogen metabolism: Perspectives for integration of microbiology and nutrition for dairy. Journal of Dairy Science 90:E1-16. https://doi.org/10.3168/jds.2006-518
  6. Goering HK, Van Soest PJ. 1970. Forage fiber analyses (apparatus, reagents, procedures, and some applications). U.S. Agricultural Research Service.
  7. Ha JK, Kim CH, Moon YS, Baik MG, Seo S, Lee SS, Lee SS, Lee SY, Lee WS, Chang JS, Choi NJ. 2013. Ruminant nutrition and physiology. SNU Press, Korea. [in Korean]
  8. Hall MB. 2009. Analysis of starch, including maltooligosaccharides, in animal feeds: A comparison of methods and a recommended method for AOAC collaborative study. Journal of AOAC International 92:42-49.
  9. Han IK, Baik IK, Ha JK, Chae BJ, Kim BG, Kim SW, Kim IH, Moon YS, Seo S, Yang CJ, Yoon CH, Choi NJ, Choi YH. 2012. Animal nutrition. SNU Press, Korea. [in Korean]
  10. Harper GS, Pethick DW. 2004. How might marbling begin? Australian Journal of Experimental Agriculture 44:653-662. https://doi.org/10.1071/EA02114
  11. Hiltner P, Dehority BA. 1983. Effect of soluble carbohydrates on digestion of cellulose by pure cultures of rumen bacteria. Applied Environmental Microbiology 46:642-648.
  12. Krishnamoorthy U, Muscato TV, Sniffen CJ, Van Soest PJ. 1982. Borate-phosphate procedure as detailed in nitrogen fractions in selected feedstuffs. Journal of Dairy Science 65:217-225. https://doi.org/10.3168/jds.S0022-0302(82)82180-2
  13. Lee J, Seo J, Park J, Seo S. 2015. Analysis of economic feed value of commercial compound feeds for Hanwoo on the basis of their nutritional value. Korean Journal of Agricultural Management and Policy 42:19-36.
  14. Licitra G, Hernandez TM, Van Soest PJ. 1996. Standardization of procedures for nitrogen fractionation of ruminant feeds. Animal Feed Science & Technology 57:347-358. https://doi.org/10.1016/0377-8401(95)00837-3
  15. NRC. 2000. Nutrient requirements of beef cattle. National Academy Press, Washington, DC.
  16. NRC. 2001. Nutrient requirements of dairy cattle. National Academy Press, Washington, DC.
  17. Seo S, Lee SC, Lee SY, Seo JG, Ha JK. 2009. Degradation kinetics of carbohydrate fractions of ruminant feeds using automated gas production technique. Asian-Australasian Journal of Animal Science 22:356-364. https://doi.org/10.5713/ajas.2009.80613
  18. Theodorou MK, Williams BA, Dhanoa MS, McAllan AB, France J. 1994. A simple gas production method using a pressure transducer to determine the fermentation kinetics of ruminant feeds. Animal Feed Science & Technology 48:185-197. https://doi.org/10.1016/0377-8401(94)90171-6
  19. Van Soest PJ, Robertson JB, Lewis BA. 1991. Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. Journal of Dairy Science 74:3583-3597. https://doi.org/10.3168/jds.S0022-0302(91)78551-2

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