Hostname: page-component-7479d7b7d-k7p5g Total loading time: 0 Render date: 2024-07-12T08:23:30.824Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of temporary food or water deprivation on milk secretion and milk composition in the goat

Published online by Cambridge University Press:  01 June 2009

Kristina Dahlborn
Kristina Dahlborn
Affiliation:
Department of Animal Physiology, Swedish University of Agricultural Sciences, Uppsala, Sweden,
Get access Rights & Permissions [Opens in a new window]

Summary

When four goats were subjected to total water deprivation for 48 h once in early lactation and once in mid lactation and their voluntary food intake and effects on milk secretion were observed, milk volume decreased and lactose and fat concentration increased during both periods. However, when the goats were then fed the mean of their own food intake at the two previous water deprivation experiments, and were left free access to water, it was found that decreased food consumption had only a minor influence on milk secretion. When six goats were subjected to 48 h of food deprivation and six to 48 h of water deprivation, milk secretion decreased, but the reduction was delayed and of smaller magnitude during water deprivation. During food deprivation lactose concentration decreased and the milk protein and fat increased; the fatty acid composition changed from a greater proportion of short-chain to more long-chain fatty acids. During water deprivation milk fat and lactose concentrations increased, and only after 44 h did a change from short-chain to a larger proportion of long-chain fatty acids become evident. These experiments indicate that not only food intake, but also water intake are concerned with milk production.

Type
Original Articles
Information
Journal of Dairy Research , Volume 54 , Issue 2 , May 1987 , pp. 153 - 163
Copyright
Copyright © Proprietors of Journal of Dairy Research 1987

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

Ali, K. E. & Mirghani, T. 1983 Effects of water and food deprivation on lactating Nubian goats. Journal of Arid Environments 6 189–194CrossRefGoogle Scholar
Allen, W. M., Little, W., Manston, R. & Sansom, B. F. 1976 The effects of partially or totally depriving dairy cows of water on their milk production, health and blood composition. 9th International Congress on Diseases of Cattle, Paris, 1974 793–798Google Scholar
Annison, E. F., Linzell, J. L. & West, C. E. 1968 Mammary and whole animal metabolism of glucose and fatty acids in fasting lactating goats. Journal of Physiology 197 445–459CrossRefGoogle ScholarPubMed
Chaiyabutr, N., Faulkner, A. & Peaker, M. 1980 Effects of starvation on the cardiovascular system, water balance and milk secretion in lactating goats. Research in Veterinary Science 28 291–295CrossRefGoogle ScholarPubMed
Holtenius, K. & Damlborn, K. 1986 Effects of 26 h of food or water deprivation on fluid balance and water movements across the rumen wall. Acta Physiologica Scandinavica (in press)Google Scholar
Knutsson, P.-G. 1966 Permeability of the udder epithelium and the formation of milk. 17th International Dairy Congress, Munich A 129–132.Google Scholar
Konar, A. & Thomas, P. G. 1970 The effect of dehydration and intravenous infusion of vasopressin on milk secretion in the goat. British Veterinary Journal 126 25–27Google ScholarPubMed
Linzell, J. L. 1974 Mammary blood flow and methods of identifying and measuring precursors of milk. In Lactation (Eds Larson, B. L. & Smith, V. R.) vol 1, pp. 143–225. New York: Academic PressGoogle Scholar
Linzell, J. L. & Peaker, M. 1971 Intracellular concentrations of sodium, potassium and chloride in the lactating mammary gland and their relation to the secretory mechanism. Journal of Physiology 216 683–700.CrossRefGoogle Scholar
Little, W., Sansom, B. F., Manston, R. & Allen, W. M. 1976 Effects of restricting the water intake of dairy cows upon their milk yield, body weight and blood composition. Animal Production 22 329–339Google Scholar
Little, W., Sansom, B. F., Manston, R. & Allen, W. M. 1978 The effects of reducing the water intake of lactating dairy cows by 40% for 3 weeks. Animal Production 27 79–87Google Scholar
Little, W., Sansom, B. F., Manston, R. & Allen, W. M. 1984 Importance of water for the health and productivity of the dairy cow. Research in Veterinary Science 37 283–289CrossRefGoogle ScholarPubMed
Little, W. & Shaw, S. R. 1978 A note on the individuality of the intake of drinking water by dairy cows. Animal Production 26 225–227Google Scholar
Maltz, E., Olsson, K., Glick, S. M., Fyhrquist, F., Silanikove, N., Choshniak, I. & Shkolnik, A. 1984 Homeostatic responses to water deprivation or hemorrhage in lactating and non-lactating Bedouin goats. Comparative Biochemistry and Physiology A 77 79–84CrossRefGoogle ScholarPubMed
Maltz, E. & Shkolnik, A. 1980 Milk production in the desert: lactation and water economy in the black Bedouin goat. Physiological Zoology 53 12–18CrossRefGoogle Scholar
Sjaunja, L. 1982 Studies on milk analyses of individual cow milk samples. Swedish University of Agricultural Sciences, Department of Animal Breeding and Genetics, Report 56Google Scholar
Smith, L. M. 1961 Quantitative fatty acid analysis of milk fat by gas-liquid chromatography. Journal of Dairy Science 44 607–622CrossRefGoogle Scholar