| Autor: |
Karlengen, I. J., Harstad, O. M., Kjos, N. P., Salbu, B., Aastveit, A. H., Taugbøl, O. |
| Předmět: |
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| Zdroj: |
Journal of Animal Physiology & Animal Nutrition; Oct2011, Vol. 95 Issue 5, p676-684, 9p, 3 Charts, 1 Graph |
| Abstrakt: |
Summary The main objective of this study was to examine if cobalt (Co) reduces Δ9-desaturase indices in milk and blood lipids in sows. The experimental design consisted of a repeated measurement consisting of a pre-treatment period of a minimum of 9 days, a treatment period of 5 days and a post-treatment period of 6 days. Experimental animals consisted of 10 lactating sows; five sows had an intramuscular injection of 59 mg Co diluted in 5 ml 0.9% saline solution twice a day, whereas the other five had an intramuscular injection of 5 ml 0.9% saline solution twice a day as a control. Milk Δ9-desaturase indices for cis-9 18:1, cis-9 16:1 and cis-9 14:1 were significantly reduced (p < 0.0001) as a result of the Co-treatment, contrasting with the plasma Δ9-desaturase indices, which were unaffected. Potential mechanisms explaining how Co might reduce milk Δ9-desaturase indices are discussed. Moreover, the toxicological level of Co and potential implications of using Co-ethylenediaminetetraacetic acid as a liquid marker in digestibility experiments are addressed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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