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Relationship between dietary methionine and cysteine on the performance of high lean gain female pigs during the growing phase (33 to 57 kg live weight)

Published online by Cambridge University Press:  05 November 2021

P.H. Simmins  and
H. Mongé
P.H. Simmins
Affiliation:
Rhône-Poulenc Animal Nutrition, 42 Avenue Aristide Briand, BP100, 92164 Antony, France
H. Mongé
Affiliation:
Rhône-Poulenc Animal Nutrition, Centre for Evaluation and Nutrition in Research, 03600 Commentry, France
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Extract

The ideal protein profile was developed by Agricultural Research council (1981) and was originally based on the lean tissue component of the pig. Maintenance requirement was then introduced by Fuller et al(1989) but ideal protein profile was still considered to have a constant ratio between all essential amino acids through the life cycle of the pig. However, the maintenance proportion for certain amino acids, such as the sulphur amino acids (SAA), may change as the pig grows. Hence, methionine and cysteine requirements are dependent on the relative balance of maintenance to protein accretion which is based on the protein deposition rate. Therefore, the objective of this study was to determine the relationship between true ileal digestible methionine and cysteine levels in feed and the ideal protein profile during the growing phase of superior genotype pigs.

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Information
Proceedings of the British Society of Animal Science , Volume 1998 , 1998 , pp. 31
Copyright
Copyright © The British Society of Animal Science 1998

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Footnotes

*

Present Address: Guyomarc'h Nutrition Animale, BP 234, 56006 Vannes, France

References

Agricultural Research Council. 1981. The Nutrient requirements of Pigs. Commonwealth Agricultural Bureaux, Slough, UK Google Scholar
Fuller, M.F., McWilliam, R., Wang, T.C., Giles, L.R., 1989. The optimum dietary amino acid pattern for growing pigs. 2. Requirements for maintenance and for tissue protein accretion. British Journal of Nutrition 62: 255–267.10.1079/BJN19890028CrossRefGoogle Scholar
Statistics Analysis Systems Institute. 1990. SAS Stat Users Guide. Version 6. 4th Edition.. SAS Institute Inc., Cary, NC, USA.Google Scholar