Rumen: Feeding Fat to Dairy Cows
Published: October 17, 2008
Summary
Fat contains over two times the amount of energy found in grain. This makes it a very good energy supplement for early lactation cows. The intake of supplemental fat should not exceed 5% of the ration. This corresponds to approximately 0.7 to 0.9 kg fat/day (1.5 to 2 lbs). If this is exceeded, rumen fermentation can be affected and milk fat depression, reduced feed intake and off-feed problems m...
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19 de octubre de 2008
Dairy needs energy for milk production. The fat energy is mainly oxidative energy which may help the cow for synthesing milk constituents. However fatty acids could not supply glucose for conversion to lactose. Also glucose is needed for NADPH formation for the conversion acetate to milk fat. Therefore feeding of oil should be viewed for the supply of ATP and LCFA. Again the feeding of oil shall be controlled otherwise it may alter the milk fat fatty acids and also the formation of cholesterol in milk. The feeding of fat may increase the secretion of glucagones which is needed for the break down of fatty acids. the glucagone may inhibit insulin which is needed for glucose metabolism. The low insulin may predispose to ketosis in high yeilding cows.
Regards.
Dr.George K John
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IDAL
2 de diciembre de 2008
...that could be another reason why some calcium soaps work better than others... glicerol content in the product naturally part of the oils used as raw material.
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