copper balance

Dietary starch level alters rumen pH and copper metabolism in lactating Holstein-Friesian dairy

By J H McCaughern, A M Mackenzie, L A Sinclair

Published on 01/04/2019

Diets containing high levels of starch that reduce rumen pH result in a higher copper availability. The starch content of the diet should be taken into consideration when supplementing with copper. The results of a study in 60 Holstein-Friesian dairy cows highlight the need to take account of dietary effects on rumen pH when deciding on appropriate copper supplementation levels.


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