Hostname: page-component-8448b6f56d-xtgtn Total loading time: 0 Render date: 2024-04-23T15:02:48.969Z Has data issue: false hasContentIssue false
  • English
  • Français

The digestible and metabolizable energy value of copra meals and their prediction from chemical composition

Published online by Cambridge University Press:  02 September 2010

P. J. Thorne ,
J. Wiseman ,
D. J. A Cole  and
D. H. Machin
P. J. Thorne
Affiliation:
University of Nottingham, Faculty of Agricultural and Food Sciences, Sutton Bonington, Loughborough LE12 5RD
J. Wiseman
Affiliation:
University of Nottingham, Faculty of Agricultural and Food Sciences, Sutton Bonington, Loughborough LE12 5RD
D. J. A Cole
Affiliation:
University of Nottingham, Faculty of Agricultural and Food Sciences, Sutton Bonington, Loughborough LE12 5RD
D. H. Machin
Affiliation:
Overseas Development and Natural Resources Institute, Central Avenue, Chatham Maritime, Chatham ME4 4TD
Get access

Abstract

Digestible (DE) and metabolizable (ME) energy values for five copra meals and a sample of raw copra, with oil contents ranging from 4 to 662 g/kg, were determined with both a high and a low energy basal diet in a metabolism experiment using 16 female pigs. Determined DE values ranged from 12·68 to 29·92 MJ/kg dry matter (DM) and values for ME from 11·95 to 29·08 MJ/kg DM which was a reflexion of their residual oil contents. Regression equations for the six samples were derived with DE and ME as dependent variables and chemical measurements and gross energy as independent variables. The best equation based on a single chemical parameter (ether extract (EE)) was:

Improvements associated with including more than one independent variable in the regression analysis were marginal. The most accurate equation (in terms of minimized residual s.d.) based on EE and crude fibre (CF) was:

Type
Research Article
Information
Animal Production , Volume 49 , Issue 3 , December 1989 , pp. 459 - 466
Copyright
Copyright © British Society of Animal Science 1989

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Agricultural Research Council. 1967. The Nutrient Requirements of Farm Livestock. No. 3, Pigs. Agricultural Research Council, London.Google Scholar
Association of Official Analytical Chemists. 1980. Official Methods of Analysis of the Association of Official Analytical Chemists. AOAC, Washington, DC.Google Scholar
Batterham, E. S., Lewis, C. E., Lowe, R. F. and McMillan, C. J. 1980a. Digestible energy content of cereals and wheat by-products for growing pigs. Animal Production 31: 259–271.Google Scholar
Batterham, E. S., Lewis, C. E., Lowe, R. F. and McMillan, C. J. 1980b. Digestible energy content of meat meals and meat and bone meals for growing pigs. Animal Production 31: 273–277.Google Scholar
Clancey, M. J. and Wilson, R. K. 1966. Development and application of a new chemical method for predicting the digestibility and intake of herbage samples. Proceedings of the Xth International Grassland Congress, Helsinki, pp. 445–453.Google Scholar
Creswell, D. C. and Brooks, C. C. 1971. Composition, apparent digestibility and energy evaluation of coconut oil and coconut meal. Journal of Animal Science 33: 366–369.CrossRefGoogle ScholarPubMed
Green, S. 1984. The use of fish silage in pig nutrition. Ph.D. Thesis, University of Nottingham.Google Scholar
Kuan, K. K., Mak, T. F., Alimon, R. and Farrell, D. J. 1982. Chemical composition and digestible energy of some feedstuffs determined with pigs in Malaysia. Tropical Animal Production 7: 315–321.Google Scholar
Mateos, G. G. and Sell, J. L. 1981. Metabolizable energy of supplemental fat as related to dietary fat level and methods of estimation. Poultry Science 60: 1509–1515.Google Scholar
Morgan, D. J. 1972. Energy values in pig nutrition. Ph.D. Thesis, University of Nottingham.Google Scholar
Thorne, P. J. 1986. The use of copra meal in pig diets. Ph.D. Thesis, University of Nottingham.Google Scholar
Thorne, P. J., Wiseman, J., Cole, D. J. A. and MacHin, D. H. 1988. Use of diets containing high levels of copra meal for growing/finishing pigs and their supplementation to improve animal performance. Tropical Agriculture 65: 197–201.Google Scholar
Van soest, P. J. 1963. Use of detergents in the analysis of fibrous feeds. II. A rapid method for the determination of fibre and lignin. Journal of the Association of Official Analytical Chemists 46: 829–835.Google Scholar
Wiseman, J. 1979. Energy evaluation of components of pig diets. Ph.S. Thesis, University of Nottingham.Google Scholar
Wiseman, J. and Cole, D. J. A. 1983. Predicting the energy content of pig feeds. In Recent Advances in Animal Nutrition — 1983 (ed. Haresign, W.), pp. 59–70. Butterworths, London.CrossRefGoogle Scholar
Wiseman, J. and Cole, D. J. A. 1987. The digestible and metabolizable energy of two fat blends for growing pigs as influenced by level of inclusion. Animal Production 45: 117–122.Google Scholar
Wiseman, J., Cole, D. J. A., Perry, F. G., Vernon, B. G. and Cooke, B. G. 1986. Apparent metabolizable energy values of fats for broiler chicks. British Poultry Science 27: 561–576.CrossRefGoogle Scholar