Year: 2019 | Month: February | Volume 9 | Issue 1
Changes in Biochemical Profile of Superovulated Sahiwal Cows through Hormonal Manipulation at Mid Luteal Phase of Estrous Cycle
In the present study, insulin and insulin-like growth factor-I (IGF-I) administered during mid-luteal phase of the estrous cycle and effect on biochemical profiles of Sahiwal donor cows was noted. Altogether eighteen cows (n=18) were selected and divided into 3 groups; control (n=6, untreated), T-I (n=6, Insulin-treated) and T-II (n=6, IGF-I treated). Superovulatory treatment was started on day 9th of the estrous cycle. With the 6th dose of FSH, prostaglandin was injected to induce superovulatory estrus. The superovulated cows were bred and superovulatory response of each animal was recorded. The collections of embryos were done non-surgically on the 7th day of superovulatory estrus. About 15 ml blood without anticoagulant was collected on days 5,7,9,11,13,15,17,19 and 21st or day of embryo recovery where day 0 of estrous cycle was taken as the day of estrus. Serum was separated, centrifuged at 3000 rpm for 15 minutes and transferred into sterilized serum vials. All samples were stored at -20 oC till analysis. Serum glucose, cholesterol, total protein, urea, and creatinine were estimated by Span Diagnostic Kits. The concentration of serum glucose increased significantly in insulin-treated and IGF-1 treated Sahiwal donor cows. It may be concluded that exogenous insulin and IGF-1 administration during mid-luteal phase may be helpful in follicular and embryonic development by increasing the level of serum glucose. The concentration of serum cholesterol, total protein, urea, and creatinine remains unaffected.
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