Effect on Reproduction of Feeding Diethylstilbestrol to Dairy Cattle
| Autor: | G.B. Marion, C.B. Browning, F.C. Fountaine, H.T. Gier |
|---|---|
| Rok vydání: | 1959 |
| Předmět: |
Estrous cycle
medicine.medical_specialty media_common.quotation_subject Diethylstilbestrol food and beverages Biology Endocrinology medicine.anatomical_structure Animal science Lactation Internal medicine Genetics Hay Herd medicine Animal Science and Zoology Reproduction Purebred Dairy cattle Food Science media_common medicine.drug |
| Zdroj: | Journal of Dairy Science. 42:1351-1358 |
| ISSN: | 0022-0302 |
| DOI: | 10.3168/jds.s0022-0302(59)90741-6 |
| Popis: | Summary Twenty-one cows from the Kansas State College purebred dairy herd and five pairs of identical-twin cows were used to determine the physiological effects of low-level diethylstilbestrol (DES) feeding on reproductive behavior. The cows were fed DES as part of their daily grain ration at levels of 0–20mg. per 1,000lb. of body weight. Results indicate that the feeding of DES at levels ranging from 5 to 15mg. had no adverse effect on estrous cycle, conception, or gestation. Three cows receiving the 20-mg. level of DES feeding aborted; however, several other cows fed at this level had no reproductive difficulty. There were no observable detrimental side effects associated with DES feeding. |
| Databáze: | OpenAIRE |
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