In:
Dicle Üniversitesi Veteriner Fakültesi Dergisi, Dicle University, Vol. 15, No. 2 ( 2022-12-31), p. 99-103
Abstract:
The present study was done to examine the effects of two different doses of equine chorionic gonadotropini (eCG) on some fertility parameters in Zoom ewes. For this purpose, a total of 77 Zom ewes were treated with intravaginal sponge containing 20 mg of fluorogestone acetate (FGA; progesterone analog) for 12 days during breeding season. Then, according to eCG injected doses at 24 h before sponge removal, ewes were divided into three groups as following; control group (no received eCG, n=30) eCG-400 group (received in 400 IU eCG dose, n=24) and eCG-600 group (received 600 IU eCG dose, n=23). Simultaneously, with this injection, all ewes were injected 75 mcg cloprostenol (PGF2α; a synthetic analog of prostaglandinF2alpha). All injections were done intramuscularly, deeply. After intravaginal sponge removal, estrus symptoms of ewes was checked with teaser rams (three times a day and 30 min) for the 5 following days, and ewes in estrus were mated. Pregnancy in ewes tested on day 60 after mating by ultrasonography. Ewes lambing and lambs were recorded. Estrus rates, pregnancy rate, lambing rates, multiple lambing rates and litter size were not different among groups (p 〉 0.05). According to these results, it could be suggested that using intravaginal sponge combined with PGF2α achieved a high rates in estrous in Zom ewes. However, doses of 400 or 600 IU eCG administration 24 hours before sponge removal did not have an effect fertility parameters in Zom ewes during breeding season.
Type of Medium:
Online Resource
ISSN:
1307-9972
DOI:
10.47027/duvetfd.1172165
Language:
Unknown
Publisher:
Dicle University
Publication Date:
2022
