Skip to main content Accessibility help
×
Home

Milk composition and yield of the black Bedouin goat during dehydration and rehydration

  • Ephraim Maltz (a1) and Amiram Shkolnik (a1)

Summary

Milk composition and yield were measured in the black Bedouin goat during 4 d of dehydration followed by 2 d of rehydration. During this time the goats were exposed to strong solar radiation with no access to shade; all of these conditions occur commonly in the desert. Milk yield, initially similar to that found in the desert, was maintained during the first 2 d of dehydration, fell to 35% of the initial value over the third and fourth days and recovered fully during 2 d of rehydration. As yield fell, milk osmolality, and milk fat and protein concentrations rose. During rehydration all 3 fell once more, but whereas osmolality finished below initial values the concentrations of fat and protein remained higher than before dehydration. The milk remained isosmolar with plasma throughout. Total yields of milk solids and milk water during the whole experimental period were 70 and 67% of normal respectively and normal growth of the young was not disturbed.

Copyright

References

Hide All
Association of Official Agricultural Chemists 1965 Official methods of analysis, 10th ednWashington, DC: AOAC.
Devendra, C. 1972 The composition of milk of British Alpine and Anglo-Nubian goats imported into Trinidad. Journal of Dairy Research 39 381385.
Foster, L. B. & Hochholzer, J. M. 1971 A single-reagent manual method for directly determining urea nitrogen in serum. Clinical Chemistry 17 921925.
Maltz, E. & Shkolnik, A. 1980 Milk production in the desert: lactation and water economy in the black Bedouin goat. Physiological Zoology 53 1218.
Maltz, E., Shkolnik, A. & Gordin, S. 1983 Milk production in the desert: the Bedouin goat in its natural habitat. Acta Zoologica Fennica 171 in the Press.
Maltz, E., Silanikove, N. & Shkolnik, A. 1982 Energy cost and water requirement of black Bedouin goats at different levels of production.Journal of Agricultural Science 98 499504.
Peaker, M. 1977 The aqueous phase of milk: ion and water transport. In Comparative aspects of lactation pp. 113134 (Ed. Peaker, M.). London: Academic Press.
Shkolnik, A., Maltz, E. & Choshniak, I. 1980 The role of the ruminant's digestive tract as a water reservoir. In Digestive Physiology and Metabolism in Ruminants pp. 731742 (Eds Ruckebusch, Y. and Thivend, P.). Lancaster: MTP Press.

Milk composition and yield of the black Bedouin goat during dehydration and rehydration

  • Ephraim Maltz (a1) and Amiram Shkolnik (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.