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Energy values in pig nutrition:I. The relationship between digestible energy, metabolizable energy and total digestible nutrient values of a range of feedstuffs

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. LE12 5BD
D. J. A. Cole
Affiliation:
University of Nottingham School of Agriculture, Sutton Bonington, Loughborough, Leics. LE12 5BD
D. Lewis
Affiliation:
University of Nottingham School of Agriculture, Sutton Bonington, Loughborough, Leics. LE12 5BD
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Summary

Nineteen feedstuffs were evaluated for total digestible nutrients (TDN), digestible energy (DE) and metabolizable energy (ME) using growing pigs. DE values, on a drymatter basis, ranged from 1570 kcal/kg D.M. (grassmeal) to 4890 kcal/kg D.M. (BP Grangemouth protein). ME averaged 97·4% of DE for cereal feeds and 81·9% of DE for protein feeds, the ratio of DE to ME being significantly affected by the crudeprotein content of the feedstuff:

ME/DE × 100 = 99·7–0·18 × crude protein (%): r = –0·94; P < 0·01.

TDN was more closely related to ME than DE:

DE (kcal/kg D.M.) = 45 TDN + 156: r = 0·92; P < 0·01,

ME (kcal/kg D.M.) = 43 TDN + 71: r = 0·98; P < 0·01.

ME values were corrected to both 30% and 0% nitrogen retention. Correction to 30% retention caused a maximum change of 3% in ME value while correction to 0% retention had a variable effect related to protein content of the feedstuff:

(ME(N0)/ME) × 100 = 98·3–0·113 × crude protein (%): r = –0·80; P < 0·01.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 84 , Issue 1 , February 1975 , pp. 7 - 17
Copyright
Copyright © Cambridge University Press 1975

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References

REFERENCES

Agricultural Research Council (1963). The nutrient requirements of farm livestock. No. 1. Poultry. London: Agricultural Research Council.Google Scholar
Agricultural Research Council (1965). The nutrient requirements of farm livestock. No. 2. Ruminants. London: Agricultural Research Council.Google Scholar
Agricultural Research Council (1967). The nutrient requirements of farm livestock. No. 3. Pigs. London: Agricultural Research Council.Google Scholar
Allen, E. H. (1968). A study of the metabolisable energy values of several feedstuffs determined directly or by difference with the pig. Dissertation Abstracts B 28, 3542 B.Google Scholar
Association of Official Agricultural Chemists (1965). Official methods of analysis of the A.O.A.O., 10th ed.Washington, D.C.Google Scholar
Blaxter, K. L. (1967). The energy metabolism of ruminants, 2nd impression (revised). London: Hutchinson.Google Scholar
Crampton, E. W., Lloyd, L. E. & Mackay, V. G. (1957). The caloric value of TDN. Journal of Animal Science 16, 541–5.CrossRefGoogle Scholar
Diggs, B. G., Becker, D. E., Jensen, A. H. & Norton, A. W. (1965). Energy values of various feeds for the young pig. Journal of Animal Science 24, 555–8.CrossRefGoogle ScholarPubMed
Henry, Y. (with Gaye, A., Turc, J. P. & Bousquet, H.) (1968). Utilisation comparée des céréales comme seuls alimente du pore pendent la période de finition. Annales de Zootechnie 17, 183–97.CrossRefGoogle Scholar
Hill, F. W. & Anderson, D. L. (1958). Comparison of metabolisable energy and productive energy determinations with growing chicks. Journal of Nutrition 64, 597–603.CrossRefGoogle Scholar
Lewis, D., Boorman, K. N. & Morgan, D. J. (1971). Digestible energy values and available amino acid levels of alternative plant and microbial protein sources. Proceedings of the Xth Congress of the European Association of Animal Production, Paris.Google Scholar
May, R. W. & Bell, J. M. (1971). Digestible and metabolisable energy values of some feeds for the growing pig. Canadian Journal of Animal Science 51, 271–8.CrossRefGoogle Scholar
Morgan, D. J. (1972). Energy values in pig nutrition. Ph.D. Thesis, University of Nottingham.Google Scholar
National Research Council (1968). Nutrient Requirements of Domestic Livestock. No. 2. Nutrient Requirements of Swine. Publ. 1599, Washington.Google Scholar
National Research Council (1969). Joint U.S.–Canadian Tables of Feed Composition. Publ. 1232. Washington.Google Scholar
Nijkamp, H. J. (1965). Estimation of heat of combustion and carbon content of urine. In Energy Metabolism (ed. Blaxter, K. L.), pp. 147–570, Academic Press.Google Scholar
Robinson, D. W., Prescott, J. H. D. & Lewis, D. (1965). The protein and energy nutrition of the bacon pig. IV. Digestible energy values of cereals in pig diets. Journal of Agricultural Science, Cambridge 64, 59–65.CrossRefGoogle Scholar
Robinson, J. J., Scott, D. & Fraser, C. (1973). Observations on the effect of protein intake and stage of gestation on the proportion of urinary nitrogen excreted as urea in sheep. Journal of Agricultural Science, Cambridge 80, 363–8.CrossRefGoogle Scholar
Saben, H. S., Bowland, J. P. & Hardin, R. J. (1971). Effect of method of determination on digestible energy and nitrogen and on metabolisable energy values of rapeseed meal and soya bean meals fed to growing pigs. Canadian Journal of Animal Science, 51, 427–32.CrossRefGoogle Scholar
Shacklady, C. A. (1970). Hydrocarbon-grown yeasts in nutrition. In Proteins as Human Foods (ed. Lawrie, R. A.), London: Butterworths.Google Scholar
Takahashi, S., Furuya, S., Jitsukawa, Y. & Morimoto, H. (1968). Studies on the nutritive evaluation of feedstuffs for pigs. 1. Grains and potatoes. 2. Fishmeals and oil meals. Bulletin of the National Institute of Animal Industries, Japan 17, 1–7, 9–14.Google Scholar
Takahashi, S., Mori, A., Jitsukawa, Y., Himeno, K. & Morimoto, H. (1968). Studies on the nutritive evaluation of feedstuffs for pigs. 3. Bran and others. Bulletin of the National Institute of Animal Industries, Japan 17, 15–20.Google Scholar
Thorbek, G. (1969). Studies on energy utilisation. In Pig Nutrition. Collected papers, 5–14. U.S. Feed Grains Council. London.Google Scholar