Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-26T20:26:58.007Z Has data issue: false hasContentIssue false
  • English
  • Français

The utilization by lambs of the energy and protein in dried pelleted grass treated with formaldehyde

Published online by Cambridge University Press:  02 September 2010

D. J. Thomson  and
S. B. Cammell
D. J. Thomson
Affiliation:
Grassland Research Institute, Hurley, Maidenhead, Berkshire SL6 5LR
S. B. Cammell
Affiliation:
Grassland Research Institute, Hurley, Maidenhead, Berkshire SL6 5LR
Get access

Abstract

A primary growth crop of perennial ryegrass (cv. S24), containing 17% crude protein and 9·9 MJ metabolizable energy/kg dry matter, was artificially dried, ground through a 3·0 mm screen and pelleted either without further treatment (C), or after the application of formaldehyde (T) at a rate of 1 g/100 g crude protein. The C and T diets were each fed to 20 lambs for 77 days. Diets C and T were given ad libitum and at three lower planes of nutrition. Similar amounts of dry matter, nitrogen and digestible energy were consumed at each of the four planes of nutrition by lambs fed diets C and T. Carcass energy, fat and protein retention, and total body energy retention were measured by the comparative slaughter technique and did not differ between the diets (P> 0·05). Metabolizable energy intake was calculated from digestible energy intake using the factor 0·81. The efficiency of utilization of the metabolizable energy for growth and fattening (kf) and the net energy value were calculated by linear regression analysis from the total body energy retention, the calculated metabolizable energy intake and dry-matter intake data scaled to M0·75. They did not differ between the diets (P > 0·05), and were 0·370 (C) and 0·431 (T) for kf, and 2·09 (C) and 1·97 MJ/kg dry matter (T) for net energy.

Type
Research Article
Information
Animal Production , Volume 29 , Issue 2 , October 1979 , pp. 245 - 255
Copyright
Copyright © British Society of Animal Science 1979

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. 1965. The Nutrient Requirements of Farm Livestock. No. 2. Ruminants. Agricultural Research Council, London.Google Scholar
American Society of Agricultural Engineers. 1967. Yb. Am. Soc. agric. Engrs, p. 301.Google Scholar
Association of Official Agricultural Chemists. 1969. Official Methods of Analysis. 11th ed. Association of Official Agricultural Chemists, Washington, D.C.Google Scholar
Barry, T. N. 1976. The effectiveness of formaldehyde treatment in protecting dietary protein from rumen microbial degradation. Proc. Nutr. Soc. 35: 221–229.CrossRefGoogle ScholarPubMed
Beever, D. E. and Thomson, D. J. 1977. The potential of protected proteins in ruminant nutrition. In Recent Advances in Animal Nutrition—1977 (ed. Haresign, W. and Lewis, D.), pp. 66–82. Butterworth, London.CrossRefGoogle Scholar
Black, J. N. 1974. Manipulation of body composition through nutrition. Proc. Aust. Soc. Anim. Prod. 10: 211–218.Google Scholar
Cammell, S. B. 1977. Equipment and techniques used for research into intake and digestion of forages by sheep and calves. Tech. Rep. No. 24, Grassld Res. Inst., Hurley.Google Scholar
Crampton, E. W. and Maynard, L. A. 1938. The relation of cellulose and lignin content to the nutritive value of animal feeds. J. Nutr. 15: 383–395.CrossRefGoogle Scholar
Egan, A. R. and Walker, D. J. 1975. Resource allocation and ruminant protein production. In Proc. 3rd Wld Conf. Anim. Prod. (ed. Reid, R. L.), pp. 551–562. Sydney University Press, Sydney.Google Scholar
Faichney, G. J. 1971. The effect of formaldehyde-treated casein on the growth of ruminant lambs. Aust. J. agric. Res. 22: 453–460.CrossRefGoogle Scholar
Faichney, G. J. and Davies, H. Lloyd. 1972. The effect of formaldehyde treatment of peanut meal in concentrate diets on the performance of calves. Aust. J. agric. Res. 23: 167–175.CrossRefGoogle Scholar
Ferguson, K. A. 1975. The protection of dietary proteins and amino acids against microbial fermentation in the rumen. In Proc. 4th int. Symp. Ruminant Physiology (ed. McDonald, I. W. and Warner, A. C. I.), pp. 448–464. University of New England, Armidale.Google Scholar
Ferguson, K. A., Hemsley, J. A. and Reis, P. J. 1967. The effect of protecting dietary protein from microbial degradation in the rumen. Aust. J. Sci. 30: 215–217.Google Scholar
Grassland Research Institute. 1961. Research techniques in use at the Grassland Research Institute, Hurley. Bull. No. 45, Commonw. Bur. Past. Fid Crops, Commonw. Agric. Bur., Farnham Royal.Google Scholar
Hemsley, J. A., Hogan, J. P. and Weston, R. H. 1970. Protection of forage protein from ruminal degradation. In Proc. 11th int. Grassld Congr. (ed. Norman, M. J. T.), pp. 703–706. University of Queensland Press, Brisbane.Google Scholar
Martin, A. K. and Blaxter, K. L. 1961. Protein as a source of energy for synthesis of fat in sheep. Proc. Nutr. Soc. 20: vii–viii (Abstr.).Google Scholar
Ministry of Agriculture, Fisheries and Food, Department of Agriculture and Fisheries for Scotland and Department of Agriculture for Northern Ireland. 1975. Energy allowances and feeding systems for ruminants. Tech. Bull. 33. Her Majesty's Stationery Office, London.Google Scholar
Reis, P. J. 1969. The growth and composition of wool. V. Stimulation of wool growth by the abomasal administration of varying amounts of casein. Aust. J. biol. Sci. 22: 745–759.CrossRefGoogle Scholar
Tetlow, R. M. 1974. A method for determining particle size distribution in packages of dried forage. J. agric. Engng Res. 19: 347–352.CrossRefGoogle Scholar
Thomson, D. J. 1963. Energy retention in lambs as measured by the comparative slaughter technique. Eur. Ass. Anim. Prod., Publ. No. 11, pp. 319–326.Google Scholar
Thomson, D. J. 1968. The utilization of herbage diets by growing sheep. Ph.D. Thesis, Univ. Reading.Google Scholar
Thomson, D. J. and Cammell, S. B. 1979. The utilization of chopped and pelleted lucerne (Medicago sativa) by growing lambs. Br. J. Nutr. 41: 297–310.CrossRefGoogle ScholarPubMed
Wilkinson, J. M., Wilson, R. F. and Barry, T. N. 1976. Factors affecting the nutritive value of silage. Outl. Agric. 9: 3–8.CrossRefGoogle Scholar