Method for improving in-vitro fertilization capability of sex-controlled frozen semen transportation and distribution of cattle

The invention discloses a method for improving in-vitro fertilization capacity of sex-controlled frozen semen transportation and distribution of cattle, and relates to the technical field of livestock breeding, the method comprises the following steps: step 1, performing oestrus identification on cows and confirming oestrus of the cows; 2, disinfecting a transmission and distribution environment, freezing instruments and transmission and distribution personnel; 3, unfreezing the frozen semen: taking a proper amount of unfreezing liquid, putting the unfreezing liquid into a clean and sterilized test tube, putting the test tube into warm water, opening a liquid nitrogen tank, lifting the frozen semen to the neck, taking out the frozen semen by using pre-cooled sterilized tweezers, and rapidly putting the frozen semen into the unfreezing liquid for rapid unfreezing; 4, insemination is conducted in time according to the growth time of the cows; and step 5, timely tire inspection. According to the method, oestrus