The effect of alkaloids and seed extracts of endophyte-infected tall fescue onprolactin secretion in an in vitro rat pitutary perfusion system
Article Abstract:
Results of a study indicated that ergopeptine alkaloids may be responsible for causing fescue toxicosis and decreased serum prolactin levels in rats. The study was conducted to assess the influence of extracts from tall fescue seeds infected by endophytes, on in vitro secretion of prolactin by dissected rat pitutaries. The effect of various endophyte associated alkaloids was also studied by treating hemipitutaries with various alkaloids and seed extracts in temperature controlled culture solutions. Results suggest that this technique can be used for studying the influence of biotransformations involving other alkaloids, also.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
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Ruminal biohydrogenation of fatty acids from high-oleate sunflower seeds
Article Abstract:
Dietary modification of fatty acid composition of bovine tissue was attempted using sunflower seeds. The feeding of high-oleate sunflower seed to cattle increased the amounts of stearate and oleate available for absorption and deposition. However, increased stearate deposition was not observed. This was attributed to metabolism of the fatty acid prior to its deposition. Encapsulation of the oleate in calcium alginate did not protect it from the action of ruminal microbes, and proved to be ineffective in inducing ruminal bypass of the oleate.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
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Ruminal biohydrogenation of linoleyl methionine and calcium linoleate in sheep
Article Abstract:
An experiment was conducted among Hampshire wethers to assess the ability of linoleoyl methionine and calcium linoleate to increase duodenal flow of unsaturated fatty acids. Results show that linoleoyl methionine increased the flow of unsaturated fatty acids and methionine into the duodenum and was not affected by biohydrogenation. On the other hand, calcium linoleate was not resistant to ruminal biohydrogenation.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
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