Assessment of Reference Values for Copper and Zinc in Blood Serum of First and Second Lactating Dairy Cows
The influence of different copper and zinc contents in rations on blood serum concentrations in dependence on feeding (Groups A and B) and lactation (Lactation 1 and 2) was tested in a feeding trial with 60 German Holstein cows. All animals received a diet based on maize and grass silage ad libitum....
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2010-01-01
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| Series: | Veterinary Medicine International |
| Online Access: | http://dx.doi.org/10.4061/2010/194656 |