Abstract
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 simultaneous collection of cervical mucus and blood. Amylase activity was measured by using kits in collected samples. Result and discussion: Cervical amylase activity was significantly (p<0.01) higher in normal compared to repeat breeder animals showing important role of cervical amylase in fertility without significant difference in serum profiles between these
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