| Autor: |
Caraba, Ion Valeriu, Caraba, Marioara Nicoleta, Dumitrescu, Gabi, Pet, Elena, Popescu, Roxana |
| Předmět: |
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| Zdroj: |
Proceedings of the International Multidisciplinary Scientific GeoConference SGEM; 2023, Vol. 23, p303-310, 8p |
| Abstrakt: |
Induction and synchronization of estrus during non-breeding season is the most frequently used biotechnological method of assisted reproduction in sheep. Synchronization of estrus in sheep is a very important breeding technique as it can effectively improve the reproductive performance of sheep, minimize the effects of seasonal factors on sheep reproduction, extend the breeding season of sheep, shorten the estrus interval, increase the gestation rate, increase the birth rate, it can also lead to the shortening of the time between generations. The study proposes a method of inducing and synchronizing estrus during non-breeding season in Turcan sheep, which uses vaginal sponges with FGA (20 mg), supplemented by the administration of PGF2a (0.20 mg) and GnRH (7 µg). The analyzed parameters were: sponge loss rate, vaginitis onset rate, total percentage of ewes in estrus and gestation rate. The results obtained for the induction rate and synchronization of estrus during non-breeding, the reproductive period in sheep from the Turcana breed of 88.88%, respectively for the rate of pregnancy deception of 81.25% indicate that the method used was an efficient one. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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