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Nitrogen metabolism in water-restricted Marwari sheep of the Indian desert

Published online by Cambridge University Press:  27 March 2009

H. C. Bohra  and
P. K. Ghosh
H. C. Bohra
Affiliation:
Division of Animal Studies, Central Arid Zone Research Institute, Jodhpur, India
P. K. Ghosh
Affiliation:
Division of Animal Studies, Central Arid Zone Research Institute, Jodhpur, India
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Summary

Studies were conducted to evaluate the effect of 50% restriction of normal daily water intake on nitrogen balance, plasma urea concentration and excretion of different urinary nitrogenous constituents (ammonia, creatine, creatinine, urea and undetermined nitrogen) in the Marwari breed of sheep of the Rajasthan desert, India. The results indicated that the reduction in feed intake in water-restricted sheep leads to a reduction in intake and excretion of nitrogen through faeces (P < 0·01) and urine (P < 0·01) of these animals. No sigficant differences in the excretion of most urinary nitrogenous constituents between ad libitum watered and water-restricted animals were observed, except for creatine which was excreted in significantly higher concentrations in the urine of the water-restricted animals. On offering water ad libitum for 3 days to the restricted animals, the plasma urea in these animals dropped from 33·0 to 20·7 mg/100 ml, i.e. almost to the level in the animals watered ad libitum (18·7 mg/ 100 ml). The daily dry-matter intakes of the ad libitum watered and restricted animals were 790 and 488 g, respectively. The digestibility coefficients for dry matter and crude protein of the feed were 47·1 and 27·2%, respectively in ad libitum watered and 56·6 and 39·5%, respectively, in restricted animals. This improvement in the efficiency of digestion in water-restricted sheep may not be due to any enhanced microbial activity in the rumen, but may possibly be due to an increased absorption of feed nutrients in the hind gut of these animals.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 101 , Issue 3 , December 1983 , pp. 735 - 739
Copyright
Copyright © Cambridge University Press 1983

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References

Association Of Official Agricultural Chemists (1965). Official Methods of Analysis of the Association of Official Agricultural Chemists, 1Oth ed., Washington, D.C.Google Scholar
Bohra, H. C. & Ghosh, P. K. (1977). Effect of restricted water intake during summer on the digestibility of cell-wall constituents, nitrogen retention and water excretion in Marwari sheep. Journal of Agricultural Science, Cambridge 89, 605–608.CrossRefGoogle Scholar
Bonsnes, R. W. & Taussky, H. H. (1945). On the colorimetric determination of creatinine by the Jaffe reaction. Journal of Biological Chemistry 158, 581–591.CrossRefGoogle Scholar
Cocimano, M. R. & Leng, R. A. (1966). Metabolism of urea in sheep. Proceedings of the Australian Society for Animal Production 6, 378–383.Google Scholar
Goodall, E. D. & Kay, R. N. B. (1968). Water intake and the cycling of nitrogen to the stomach in sheep. Journal of Physiology 194, 38.Google Scholar
Khan, M. S., Sasidharan, T. O. & Ghosh, P. K. (1979). Glomerular filtration rate and blood and urinary urea concentrations in Baimer goats of the Rajasthan deseit. Journal of Agricultural Science, Cambridge 93, 247–248.CrossRefGoogle Scholar
Macfarlane, W. V., Morris, R. J. H., Howard, B., Mcdonald, J. & Budtz-Olsen, O. E. (1961). Water and electrolyte changes in tropical Merino sheep exposed to dehydration during summer. Australian Journal of Agricultural Research 12, 889–912.CrossRefGoogle Scholar
Maloiy, G. M. O., Kay, R. N. B., Goodall, E. D. & Topps, J. H. (1970). Digestion and nitrogen metabolism in sheep and red deer given large or small amounts of water and protein. British Journal of Nutrition 24, 843–855.CrossRefGoogle ScholarPubMed
Natelson, S. (1957). Microtechniques of Clinical Chemistry for the Routine Laboratory, p. 381. Springfield, Illinois: C. C. Thomas.Google Scholar
Oser, B. L. (1965). Hawk's Physiological Chemistry, p. 1472. 14th ed.New York: McGraw-Hill.Google Scholar
Osman, E. H. & Fadlalla, B. (1974). The effect of level of water intake on some aspects of digestion and nitrogen metabolism of the ‘desert sheep’ of Sudan. Journal of Agricultural Science, Cambridge 82, 61–69.CrossRefGoogle Scholar
Schmidt-Nielsen, B., Schmidt-Nielsen, K., Houpt, T. R. & Jarnum, S. A. (1957). Urea excretion in the camel. American Journal of Physiology 188, 477–484.CrossRefGoogle ScholarPubMed
Schmidt-Nielsen, B., Osaki, H., Murdaugh, H. V. Jr & O'dell, R. (1958). Renal regulation of urea excretion in sheep. American Journal of Physiology 194, 221–228.CrossRefGoogle ScholarPubMed
Siebert, B. D. & Macfarlane, W. V. (1975). Dehydration in desert cattle and camels. Physiological Zoology 48, 36–48.CrossRefGoogle Scholar
Snedeoor, G. W. & Cochran, W. G. (1967). Statistical Methods. 6th ed.Ames, Iowa, U.S.A.: Iowa State University Press.Google Scholar
Thornton, R. F. & Yates, N. G. (1968). Some effects of water restriction on apparent digestibility andc camel. American Journal of Australian Journal of Agricultural Research 19, 665–672.Google Scholar
Topps, J. H. & Elliott, R. C. (1967). Partition of nitrogen in the urine of African sheep given a variety of low-protein diets. Animal Production 9, 219–227.Google Scholar
Utley, P. R., Bradley, N. W. & Boling, J. A. (1970). Effect of water restriction on nitrogen metabolism in bovine fed two levels of nitrogen. Journal of Nutrition 100, 551–556.CrossRefGoogle ScholarPubMed