Estrus Synchronization and Artificial Insemination in Goats during Low Breeding Season-A Preliminary Study
نویسندگان
چکیده
Received: Revised: Accepted: November 24, 2010 December 04, 2010 December 22, 2010
منابع مشابه
Efficacy of CIDR, fluogestone acetate sponges and cloprostenol for estrous synchronization of Nadooshani goats during the breeding season
The objective of this study was to evaluate three methods of estrous synchronization, viz. controlled internal drug releasing device (CIDR), intravaginal sponges impregnated with fluogestone acetate (FGA), and cloprostenol (Estrumate; an analogue of prostaglandin F2α) in Nadooshani goats of Yazd province, Iran.The estrous synchronized does (n = 30 to 33 per treatment), after heat detection, wer...
متن کاملeef cattle producers using artificial insemination in their herds also can synchronize estrus (heat) to breed fertile females rapidly. Synchronizing Estrus in Cattle
Cows not conceiving will return to estrus again beginning about 18 to 25 days after the synchronization period. The females will still be synchronized to a slight degree, which gives a second chance to artificially inseminate each female in the early part of the breeding season. Without synchronization, the herd manager is faced with a 21-day period of continual estrus detection and only one op...
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A similar proportion of beef cows and heifers exposed to estrous synchronization (ES) and artificial insemination (AI) became pregnant during the breeding season, compared with females bred via natural service breeding. Females in a breeding system that included ES and AI calved earlier in the calving season, compared with females bred with natural service, but no advantage was present for weig...
متن کاملEffects of estradiol and oxytocin injection on the efficiency of artificial insemination in Iranian Zel ewes during the breeding season
In sheep industry, pregnancy rate after artificial insemination (AI) declines due to the complex anatomy of the cervix in ewes, such that it might prevent effective intrauterine insemination. At estrus, cervical relaxation occurs to some degree in ewes, which is regulated by the changes in the levels of reproductive hormones. This study aimed to evaluate the effects of estradiol and intravenous...
متن کاملEFFECT OF ESTRUS SYNCHRONIZATION PROTOCOLS INCLUDING PGF2α AND GnRH ON FERTILITY PARAMETERS IN HAIR GOATS DURING BREEDING SEASON
The present study was performed to determine the effect of PGF2α and GnRH injections in different time intervals on fertility in Hair goats during breeding season. Totally, 80 primiparous Hair goats were divided into four groups (n=20 in each) according to the body condition scores of the animals. The animals in groups were treated as follows; first group (Ovsynch), GnRH on day 0, PGF2α on day ...
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