ESTRUS DETECTION IN PELIBUEY EWES WITH ANDROGENIZED EWE OR VASECTOMIZED RAM
The efficiency of a vasectomized ram versus an androgenized ewe for estrus detection in Pelibuey ewes, was compared. The experiment was carried out for 35 days (June-July of 1996) at the Colegio Superior Agropecuario del Estado de Guerrero. The ewe was androgenized with two intramuscular doses of 250 mg of Testosterone Enanthate given ten days apart. Thirty two adult ewes were subjected to estrus detection every day (from 07:00 to 07:30 hours). The detection was carried out for 15 minutes with the vasectomized male and 15 minutes with the androgenized ewe. The variables evaluated were the percentage of ewes detected in estrus by each animal, the interval between the introduction of the teaser and the detection of first estrus and the interval between each detected estrus. Statistical analysis was carried out by means of the z and Student t tests. Estrus detection was higher (p
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Colegio de Postgraduados
1999
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| Online Access: | https://www.agrociencia-colpos.org/index.php/agrociencia/article/view/1630 |
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