Actividad fito-estrogénica del trébol blanco in vitro e in vivo y su fluctuación en relación a variables climáticas. Estado metabólico y fermentación ruminal
There is no clear understanding of estrogen activity in white clover, nor its effects on animal fertiłity. Because this plant is a major protein source for livestock in Latin America, estrogen activity was measured during a one-year cycle, using methods for comparing radioactivity. Estrogen levels rose with rainfall, sunshine and ruminal fermentation, but was unaffected by environmental temperature and grazing In order to determine whether estrogen activity measured in vitro affected animal fertility, several reproductive parameters of the female mouse were measured after feeding the animal clover extracts, either in liquid form or in two injections. Esmus cycles were drastically lengthened in estrus and diestrus and fertility was suppressed. These effects were similar in both the injected application and the oral application, although accumulated oral doses contain one hundred times the amount in infected doses. The fermented extract, administered orally, appears to have affected fertility more than the fermented extract, but parenteral action was undifferentiated.
| Main Authors: | , , , |
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| Format: | biblioteca |
| Language: | spa |
| Published: |
San José, Costa Rica Instituto Interamericano de Cooperación para la Agricultura (IICA)
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| Subjects: | TRIFOLIUM REPENS, TRIFOLIUM PRATENSE, TRIFOLIUM SUBTERRANEUM, IN VITRO, FERTILIDAD, ESTROGENOS, COMPORTAMIENTO REPRODUCTIVO, GANADO, METABOLISMO, |
| Online Access: | https://repositorio.catie.ac.cr/handle/11554/11902 |
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