158 Comparison of different presynch-based synchronization protocols in postpartum dairy cattle
نویسندگان
چکیده
منابع مشابه
Reproductive performance evaluation of different prostaglandins for repeated synchronization program in postpartum dairy cows: preliminary results
This trial evaluates reproductive performance in a early-routine estrus synchronization program using two different PGF2? . Cows were administered D(+)cloprostenol sodium (n=88; Group A) or dinoprost (n=78; Group B) between 35-42d postpartum. Pedometers were used to detect estrus. Evaluation of secondary signs of estrus and evaluation of vaginal mucus quality was made prior to AI. When estrus w...
متن کاملA review of synchronization of estrus in postpartum cattle.
Estrus has been synchronized in cattle with progestogens, prostaglandins (prostaglandin F2 alpha and its analogues), progestogen-estrogen combinations and progestogen-prostaglandin combinations. Progestogens administered for 14 to 20 d are effective in synchronizing estrus; however, fertility at the synchronized estrus is subnormal. Duration of progestogen treatment can be reduced by combining ...
متن کاملEffects of two different protocols: injection of progesterone vs. injection of GnRH+PGF2a on the onset of estrus in dairy cows with postpartum anestrous
Postpartum anestrous is one of the most important problems in the dairy industry in the world and especially in Iran. The objective of present study was to compare the efficacy of two hormonal programs for recycling of postpartum anestrous cows. For this reason, 230 Holstein cows from 4 similar dairy herds (with totally 2560 cow and unique management and feeding system) located on the suburb of...
متن کاملTherapeutic and Management options for Postpartum Metritis in Dairy Cattle
The treatment goal for postpartum metritis (e.g., endometritis, postpuerperal metritis, toxic puerperal metritis, pyometra) is to facilitate the timely clearance of the infection and return the animal to a normal reproductive state. Clinical signs associated with postpartum metritis range from temporary and self-limiting signs to chronic or life-threatening ones. Choosing an appropriate treatme...
متن کاملPharmacological Control of Estrus in Tropical Cattle, an Economical Assessment of Different Synchronization Protocols
To compare the fertility results and to assess the cost-effectiveness of several synchronization protocols applied under the conditions of beef cattle enterprises in Colombia, 1658 multiparous zebu crossbred cows mostly Brahman and Nelore ranging between 2 6 parities were used. Five protocols of pharmacological treatments varying in hormones used, dosage and the time of application were tested....
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ژورنال
عنوان ژورنال: Journal of Animal Science
سال: 2019
ISSN: 0021-8812,1525-3163
DOI: 10.1093/jas/skz258.312