Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-20T07:30:06.441Z Has data issue: false hasContentIssue false
  • English
  • Français

A note on the protein requirement for maintenance of adult rams

Published online by Cambridge University Press:  02 September 2010

Manohar Singh  and
V. Mahadevan
Manohar Singh
Affiliation:
Post-Graduate College of Animal Sciences, Indian Veterinary Research Institute, Izatnagar, India
V. Mahadevan
Affiliation:
Post-Graduate College of Animal Sciences, Indian Veterinary Research Institute, Izatnagar, India
Get access

Summary

Nitrogen balance studies of latin square design were conducted on six adult rams receiving diets with approximately 4, 8 and 16% crude protein. The diets were almost isocaloric and contained groundnut cake, wheat bran, maize starch, and chopped wheat straw. Metabolic faecal and endogenous urinary N were 0·24 ± 0·003 g/100 g dry-matter intake and 0·038 ± 0·01 g/kg body weight per day. Biological value, true digestibility and coefficient of net utilization were 86·9 ± 8·68, 93·4 ± 1·94 and 79·6 ± 2·47, respectively.

Daily digestible crude protein requirements for maintenance estimated by the factorial method (0·875 + 0·;06 g/kg W0·734) and from N balance and the net utilization of protein (0·893 + 0·03 g/kg W0·734) were similar but slightly higher than the requirement estimated from N balance alone (0·738 ± 0·04 g/kg W0·734). All values are lower than the conventional recommendations.

Type
Research Article
Information
Animal Production , Volume 12 , Issue 1 , February 1970 , pp. 185 - 189
Copyright
Copyright © British Society of Animal Science 1970

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
Brody, S. 1945. Bioenergetics and Growth. Reinhold Publishing Corporation, New York.Google Scholar
Chalmers, M. I., Cuthbertson, D. P. and Synge, R. L. M. 1954. Ruminai ammonia formation in relation to the protein requirement of sheep. 1. Duodenal administration and heat processing as factors influencing fate of casein supplements. J. agric. Sci., Camb. 44: 254–262.CrossRefGoogle Scholar
Elliott, R. C. and Topps, J. H. 1963. Studies on protein requirements of ruminants. 1. Nitrogen balance trials on two breeds of African cattle given diets adequate in energy and low in protein. Br. J. Nutr. 17: 539–547.CrossRefGoogle Scholar
Elliott, R. C. and Topps, J. H. 1964. Studies on protein requirements of ruminants. 3. Nitrogen balance trials on Black head Persian sheep given diets of different energy and protein content. Br. J. Nutr. 18: 245–252.CrossRefGoogle Scholar
Maynard, L. A. and Loosli, J. K. 1956. Animal Nutrition. Kogakusha Co Ltd, Tokyo.Google Scholar
Mitchell, H. H. 1924. A method of determining the biological value of protein. J. biol. Chem. 58: 873–903.CrossRefGoogle Scholar
Mitchell, H. H. 1929. The minimum protein requirement of cattle. Bull. National Research Council U.S.A. No. 67.Google Scholar
Robinson, J. J. and Forbes, T. J. 1966. A study of the protein requirement of the mature breeding ewe. Maintenence requirement of the non-pregnant ewe. Br. J. Nutr. 20: 263–272.CrossRefGoogle Scholar
Rosenthal, H. L. and Allison, J. B. 1951. Some effects of caloric intake on nitrogen balance in dogs. J. Nutr. 44: 423–431.CrossRefGoogle ScholarPubMed
Snedecor, G. W. and Cochran, W. G. 1968. Statistical Methods. (Indian Edition). Oxford and IBH Publishing Co, New Delhi.Google Scholar