Experience of insemination in raising Beef cattle
Timely and accurate transfusion of a certain amount of high-quality semen to the appropriate part of the reproductive tract of estrus cows is very important to improve the conception rate of cows.
1. Before insemination, the vulva and perineum of the cow to be matched should be washed and disinfected with warm water; at the same time, the insemination equipment and semen should be prepared, the insemination gun should be disinfected, the plastic coat of the gun should be used for one-time use, and the semen must be examined for vitality. it can only be used in accordance with the insemination standard.
2. At present, the method of rectal insemination is adopted in all the insemination methods. First of all, according to the cow estrus rectal examination, the hand is inserted into the rectum to check the general condition of the reproductive organs in order to identify whether it is at the right time for insemination. Then gently fix the back end of the cervix in the hand, press the arm down (or with the assistance of the assistant) to open the vagina, and in the other hand insert the Casu insemination gun 5 centimeters oblique upward from the vagina to avoid the urethral orifice, then insert it horizontally or obliquely downward, send the insemination gun to the cervical orifice, and then cooperate with each other to adjust the relative direction of the vas deferens gun and the cervical tube, so that the insemination gun slowly passes through the wrinkled wall wheel in the cervical tube. When you are skilled, you can send the insemination gun to the uterine body or the uterine horn on the ovulation side to inject semen. If you are not very skilled, you should send it to the 2cm, 3pm, 4pm of the cervix to inject semen. The proficiency of insemination technology has a lot to do with the reproduction rate of cows.
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Teach you the method of distinguishing the true and false of small-tailed Han sheep
1. The difference between crossbred sheep and authentic small-tailed Han sheep the small-tailed Han sheep have been crossbred and improved in some producing areas, the growth rate of the offspring is slow, the adult individuals are far inferior to the small-tailed Han sheep, and the lambing rate of ewes is low and the economic benefit is poor. II.
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Key points of stable production of raising Dairy Cow
Feed and feed should be diversified, feed three meals a day, and concentrate should be corn flour, bean cake, cottonseed cake and wheat bran to provide adequate drinking water. To ensure the lack of green feed in winter and spring, grass and crop straw can be chopped to make silage.
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