Hostname: page-component-8448b6f56d-sxzjt Total loading time: 0 Render date: 2024-04-24T11:05:11.668Z Has data issue: false hasContentIssue false
  • English
  • Français

Energy values in pig nutrition:II. The prediction of energy values from dietary chemical analysis

Published online by Cambridge University Press:  27 March 2009

D. J. Morgan ,
D. J. A. Cole  and
D. Lewis
D. J. Morgan
Affiliation:
University of Nottingham School of Agriculture, Sutton Bonington, Loughborough, Leics.
D. J. A. Cole
Affiliation:
University of Nottingham School of Agriculture, Sutton Bonington, Loughborough, Leics.
D. Lewis
Affiliation:
University of Nottingham School of Agriculture, Sutton Bonington, Loughborough, Leics.
Get access Rights & Permissions [Opens in a new window]

Summary

Eighteen individual feedstuffs and 19 mixed diets were used in a study attempted to relate determined energy values to various chemically determined measures. For cereals the level of fibre could be used to predict digestible and metabolizable energy (DE and ME). In the case of DE the relationships with crude fibre and modified acid detergent fibre (MADF) based on 14 feeds were:

DE (kcal/kg D.M.) = 4179–86 MADF (%): r =–0·96; P < 0·01,

DE (kcal/kg D.M.) = 4228–140 x crude fibre (%): r =–0·97; P < 0·01.

For all feeds the following equations gave the best prediction of energy values from dietary analysis (on the basis of correlation coefficients and residual standard deviations):

DE (kcal/kg D.M.) = 109·9 x crude protein (%) + 149·3 x acid ether extract (%) + 90·1 x nitrogen-free extract (%)–5030: R = 0·95; P < 0.01.

ME (kcal/kg D.M.) = 99·5 x crude protein (%) + 144·7 x acid ether extract (%) + 87·8 x nitrogen-free extract (%)–4795: R = 0·94; P < 0·01.

Digestible nutrients were closely related to DE and ME, e.g.

DE (kcal/kg D.M.) = 52·9 x digestible crude protein (%) + 108·3 x digestible ether extract (%) + 39·4 x digestible crude fibre (%) + 39·9 x digestible nitrogen-free extract (%) + 183·7: R = 0·99; P < 0·01.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 84 , Issue 1 , February 1975 , pp. 19 - 27
Copyright
Copyright © Cambridge University Press 1975

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. London: Agricultural Research Council.Google Scholar
Association Of Official Agricultural Chemists (1965). Official methods of analysis of the A.O.A.C., 10th ed.Washington, D.C.Google Scholar
Bolton, W. (1954). The digestibility of the carbohydrate complex of bran and oats by adult cocks. 10th World Poultry Congress, Selected Papers, pp. 94–8. Edinburgh.Google Scholar
Bolton, W. (1960). The determination of digestible carbohydrates in poultry food. Analyst 85, 189.CrossRefGoogle Scholar
Bolton, W. (1967). Poultry Nutrition. Ministry of Agriculture, Fisheries and Food. Bulletin No. 174. London: H.M.S.O.Google Scholar
Bowland, J. P. (1962). Electronic computation of growing and finishing rations for pigs to meet U.S. N.R.C. (1959) nutrient requirements with and without a margin of safety. Canadian Journal of Animal Science 42, 191–202.CrossRefGoogle Scholar
Braude, R. (1967). The effect of changes in feeding patterns on the performance of pigs. Proceedings of the Nutrition Society 26, 163–81.CrossRefGoogle ScholarPubMed
Carpenter, K. J. & Clegg, K. M. (1956). The metabolisable energy of poultry feeding stuffs in relation to their chemical composition. Journal of the Science of Food and Agriculture 1, 45–51.CrossRefGoogle Scholar
Clancy, M. J. & Wilson, R. K. (1966). Development and application of a new chemical method for predicting the digestibility and intake of herbage samples. Proceedings of the tenth International Grassland Conference, Helsinki, 445–53.Google Scholar
Clegg, K. M. (1956). The application of the anthrone reagent to the estimation of starch in cereals. Journal of the Science of Food and Agriculture 7, 40–4.CrossRefGoogle Scholar
Devendra, C. (1969). Ph.D. Thesis, University of Nottingham.Google Scholar
Drennan, P. & Maguire, M. F. (1970). Prediction of the digestible and metabolisable energy content of pig diets from their fibre content. Irish Journal of Agricultural Research 9, 197–202.Google Scholar
Fraps, G. S., Carlyle, E. C. & Fudge, J. F. (1940). Metabolisable energy of some chicken feeds. Texas Agricultural Experimental Station Bulletin no. 589.Google Scholar
Keys, J. E., Van Soest, P. J. & Young, E. P. (1969). Comparative study of the digestibility of forage cellulose and hemicellulose in ruminants and nonruminants. Journal of Animal Science 29, 11–15.CrossRefGoogle ScholarPubMed
Lucas, I. A. M. (1949). The value of the digestibility trial as an adjunct to growth trial data in indicating the efficiency of hog rations. M.Sc. thesis, McGill University.Google Scholar
Morgan, D. J., Cole, D. J. A. & Lewis, D. (1975). Energy values in pig nutrition. I. The relationship between digestible energy, metabolizable energy and total digestible nutrient values of a range of feedstuff's. Journal of Agricultural Science, Cambridge 84, 7–17.CrossRefGoogle Scholar
Nehring, K. (1969). Investigations on the scientific basis for the use of net energy for fattening as a measure of feed value. In Energy Metabolism of Farm Animals, (ed. Blaxter, K. L., Thorbek, G. and Kiolanowski, J.) (European Association of Animal Production), 5–20.Google Scholar
Nordfeldt, S. (with Ruuidvere, A., Toiger, E. & Lagerwall, P.) (1954). Digestibility experiments with pigs. Kunglica Lantbrukshogskolan (Uppsala) Annala 21, 1–29.Google Scholar
Schneider, B. H. (1947). Feeds of the World. Their Digestibility and Composition. West Virginia Agricultural Experiment Station.Google Scholar
Schneider, B. H., Lucas, H. L.Pavlech, H. M. & Cipolloni, M. A. (1951). Estimation of the digestibility of feeds from their proximate composition. Journal of Animal Science 10, 706–13.CrossRefGoogle Scholar
Sibbald, I. R., Czarnocki, J., Slinger, S. J. & Ashton, G. C. (1963). The prediction of the metabolisable energy content of poultry feeding stuffs from a knowledge of their chemical composition. Poultry Science 42, 486–92.CrossRefGoogle Scholar
Somogui, M. (1945). Determination of blood sugar. Journal of Biological Chemistry 160, 69–73.CrossRefGoogle Scholar
Thorbek, G. (1969). Studies on the energy metabolism of growing pigs. In Energy Metabolism of Farm Animals (ed. Blaxter, K. L., Thorbek, G. and Kielanowski, J.) (European Association of Animal Production), 281–9.Google Scholar