APPLICATION OF ESTRUS SYNCHRONIZATION USING PGF2α AND OVULATION SYNCHRONIZATION USING hCG FOR ARTIFICIAL INSEMINATION OPTIMIZATION ON ONGOLE (PO) BREED CATTLE
نویسندگان
چکیده
منابع مشابه
Synchronization Using PGF2α and Estradiol With or Without GnRH for Timed Artificial Insemination in Dairy Cows
This study examined the use of PGF(2α) and estradiol benzoate (EB) either with or without GnRH to synchronize estrus in dairy cows for timed artificial insemination (TAI) under field conditions. First, Holstein dairy cows with a corpus luteum (CL) received 500 μg cloprostenol and were then randomly allocated to three groups: no further treatment (control, n=236); treatment with 1 mg EB 56 h aft...
متن کاملKeys to Successful Estrus Synchronization and Artificial Insemination Programs
Introduction The development of effective methods of synchronizing estrus and ovulation has been based on our understanding of the physiological and hormonal mechanisms controlling the estrous cycle and the initiation of estrous cyclicity and prepuberty in heifers and postpartum cows. Although estrus synchronization products (PGF2, MGA, CIDR and GnRH) and protocols have changed over time, the ...
متن کاملSynchronization of ovulation and artificial insemination of sows after lactation.
The administration of PMS:HCG proved satisfactory as a method for synchronizing estrus and ovulation in sows after 3 or 6 weeks of lactation and permitted artificial insemination at one time without relying on the detection of estrus. Fifty-eight Duroc sows were assigned randomly as controls or to a hormonal-treatment group when their litters were weaned at 3 or 6 weeks of age. Twenty-nine sows...
متن کاملSynchronization of ovulation and fixed-time artificial insemination in beef cattle.
The main objective of the implementation of artificial insemination (AI) in cattle is to produce a sustained genetic progress in the herd. Although AI is an old reproductive biotechnology, its widespread implementation is very recent and is mainly because of the use of protocols that allows AI without oestrus detection, commonly called fixed-time artificial insemination (FTAI). The development ...
متن کاملEffects of timed artificial insemination following estrus synchronization in postpartum beef cattle
The objectives of this study were to evaluate estrus response and pregnancy rates resulting from timed artificial insemination (AI) following estrus synchronization using CIDR in postpartum beef cattle. A total of 100 cows were randomly divided into three groups. Groups 1, 2 and 3 were artificially inseminated at 48-50 h (n=30), 53-55 h (n=30) and 58-60 h (n=40) after CIDR removal, respectively...
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ژورنال
عنوان ژورنال: Jurnal Kedokteran Hewan - Indonesian Journal of Veterinary Sciences
سال: 2018
ISSN: 2502-5600,1978-225X
DOI: 10.21157/j.ked.hewan.v11i4.5940