Fertility Improvement by Ovsynch Protocol in Repeat Breeder Cattle of Kathmandu Valley
نویسندگان
چکیده
منابع مشابه
Repeat-breeder Females in Beef Cattle: Influences and Causes 1'2
Straightbred and crossbred heifers (165) and cows (241) that were nonpregnant after exposure to fertile bulls for two consecutive breeding periods of 45 to 60 d (repeat breeders) and contemporary cows (102) that had produced a calf in the previous calving season (controls) were placed with bulls and were observed for mating. Repeat-breeder and control females were slaughtered at 2 to 51 d postm...
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A total of 48 repeat breeder cows were equally divided in to two treatment groups as NOR and NOR-PG and were treated with norgestomet ear implants on day 10 following natural oestrus and a control group. At the time of ear implant insertion, 2 ml of SMB injection was administered intramuscularly to all the cows. The implant was removed after 9 days. Cows in NOR-PG group were injected with 0.98 ...
متن کاملEvaluation of groundwater environment of Kathmandu Valley
Kathmandu Valley aquifer in central Nepal is continuously under stress since the commencement of mechanized extraction of groundwater resources in early 1970s. Many wells have been drilled in shallow and deep aquifers of the valley; and numerous studies have been made in last four decades to understand the aquifers. However, up-to-date information on well inventory, water extraction, water qual...
متن کاملAmylase activity in cerical mucus and serum during estrus in normal and repeat breeder cattle
Aim: To compare the amylase activity in the cervical mucus and serum during estrus in normal and repeat breeder cattle and find out importance in fertility. Materials and methods: Twenty cyclic crossbred cattle were divided into two groups: normal (n =10) and repeat breeder (n =10). Animals exhibiting spontaneous estrus, were artificially inseminated (AI) twice, as per AM-PM schedule along with...
متن کاملSYNCHRONIZATION OF OVULATION IN REPEAT BREEDING CROSSBRED JERSEY COWS USING GnRH AND PGF2∝
The present study was designed to evaluate the effect of Ovsynch protocol in repeat breeding crossbred Jersey cows. A total of thirty four repeat breeding cross bred Jersey cows were subjected to Ovsynch protocol with timed artificial insemination. The pregnancy rate in Ovsynch protocol was 58.82 per cent where as it was 29.41 per cent in control group. Thus, the Ovsynch protocol can be effecti...
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ژورنال
عنوان ژورنال: International Journal of Applied Sciences and Biotechnology
سال: 2018
ISSN: 2091-2609
DOI: 10.3126/ijasbt.v6i3.21183