Growth and reproduction in dairy heifers following ...
|Paper title||Growth and reproduction in dairy heifers following administration of selenium pellets|
|Paper author(s)||Jeffrey Wichtel, N. B. Williamson, A. L. Craigie|
|Proceedings title||Proceedings of the New Zealand Trace Elements Group Conference|
|Conference||J., Lee, M. A., Turner, K. N., Joblin, N. D., Grace, G. P., Savage|
|Abstract||In 2 herds, yearling dairy heifers were given 2 or 4 intraruminal pellets containing elemental selenium 3 g or were not treated. During 7 months after treatment mean whole-blood glutathione peroxidase activity was higher in treated than in untreated heifers and, in one herd, which had the lowest initial values, was higher in those given 4 than in those given 2 pellets. In that herd also, but not in the other, liveweight gain was 10% higher than in the untreated heifers; 4 pellets had no greater effect than 2. Pregnancy rate and mating-start to conception interval were not significantly affected by Se treatment..|
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