Cattle continuous processes method

Abstract

The invention discloses a continuous superovulation of cow, which comprises the following steps: placing cork in the zero day, injecting once follitropin in the forth, fifth, sixth and seventh days, injecting once cloprostenol in the morning and evening of seven day, fertilizing artificially in the ninth and tenth days, brushing embryo in the seventh day, injecting cloprostenol, injecting cloprostenol in the twentieth-forth day, placing cork in the thirty day, detecting through Ultrasonic B.

Description

technical field [0001] The invention relates to the field of embryo engineering, in particular to a continuous superovulation method for cattle. Background technique [0002] Cows are single-born animals, and only one egg is ovulated in one estrus cycle. During pregnancy, there is no estrus and ovulation. In actual production, due to the influence of factors such as pregnancy, lack of lactation, winter rest and the limitation of the actual utilization of cows, most cows Cows only ovulate dozens of eggs in their lifetime, which is less than 0.1% of the number of ovarian oocytes, and 99.9% of the oocytes have not matured and have not played their due role. Superovulation technology uses reproductive hormones to stimulate the growth and development of follicles, so that cows can produce oocytes several times to ten times more than normal, and cow embryos can be formed after artificial insemination. [0003] At present, in countries with developed animal husbandry, the technolo...

AI Technical Summary

Problems solved by technology

The long time interval has resulted in a reduction in the use of excellent donor cattle, which has virtually increased the cost of embryo transfer