피인용 문헌
- The Optimum Methionine to Methionine Plus Cystine Ratio for Growing Pigs Determined Using Plasma Urea Nitrogen and Nitrogen Balance vol.21, pp.3, 1997, https://doi.org/10.5713/ajas.2008.60480
Asian-Australasian Journal of Animal Sciences
- 제10권1호
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- Pages.86-97
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- 1997
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- 1011-2367(pISSN)
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- 1976-5517(eISSN)
DOI QR Code
Developing Model Equation to Subdivide Methionine + Cystine Requirements into Requirements for Growth and Maintenance in Pigs
- Yang, C.J. (Department of Animal Science and Technology, College of Agriculture and Life Sciences, Seoul National University) ;
- Lee, D.W. (Department Animal Science, College of Agriculture, Suncheon National University) ;
- Chung, I.B. (National Livestock Research Institute, R.D.A.) ;
- Cho, Y.M. (National Livestock Research Institute, R.D.A.) ;
- Shin, I.S. (American Soybean Association) ;
- Chae, B.J. (Department of Animal Science and Technology, College of Agriculture and Life Sciences, Seoul National University) ;
- Kim, J.H. (Department of Animal Science and Technology, College of Agriculture and Life Sciences, Seoul National University) ;
- Han, In K. (Department of Animal Science and Technology, College of Agriculture and Life Sciences, Seoul National University)
- 투고 : 1996.02.14
- 심사 : 1996.11.15
- 발행 : 1997.02.01
초록
Purified diets containing 5 graded levels of methionine + cystine were fed to young, growing and finishing pigs to determine the methionine + cystine requirement for growth and maintenance. A model was developed to subdivide the methionine + cystine requirement for maintenance from requirement for growth. From this model, the methionine + cystine requirement for growth was 8.633, 10.260 and 9.293 g/kg live weight gain and the maintenance requirement was 0.049, 0.016 and 0.019 g per unit of metabolic body size at each stage of growth, respectively. In the young pigs, the methionine + cystine requirement for growth was 0.491 g/g N gain and the maintenance requirement was 0.059 g per unit of metabolic body size. The breakpoint of plasma methionine + cystine concentrations was 3.888, 6.935 and 8.116 g/d, respectively. Expected requirements obtained from these formulae were in general agreement with previous estimates. Based on the weight gain vs N gain equation, about 4.44% of the retained protein was comprised of methionine + cystine and compared to 3.31%, the mean methionine + cystine content of pig muscle CP.
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