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Summary
To determine whether some of the alterations previously observed in the blood lipids and phosphatase values of cows with ketosis are due to ketosis per se or secondarily to the inanition associated with ketosis, 16 cows were used in a study of the effect of different levels of protein and energy intake postpartum. The postpartal plasma lipid values of cows receiving 70 to 80 per cent of their total digestible nutrient requirements were similar to those of cows in the early stages of ketosis. The postpartal plasma lipid values of cows receiving only 35 per cent of their total digestible nutrient requirements were similar to those of cows in the later stages of ketosis. Complete fasting for 8 days produced alterations of the same nature but of greater magnitude.
Reference
- Studies on ketosis in dairy cattle. XI. Lipids, Minerals and Ascorbic Acid in the Blood of Cows with Spontaneous Ketosis.J. Dairy Sci. 1950; 33: 496-507
Article info
Publication history
Received:
March 7,
1950
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© 1950 American Dairy Science Association. Published by Elsevier Inc.
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