News briefing: Bull breeding
News briefing: Bull breeding
What should cattle pay attention to after breeding?
1. First Mating age: large beef cattle breeds such as Simmental cattle, Charolais must be over 1.5 years old, skeleton and weight of adult cattle over 70% , small beef cattle breeds or native cattle must be over 1 year old, the skeleton, the weight achieves the adult cow above 60% .
2. SELECTION OF FROZEN SEMEN: smaller cows or first-born cows should not choose bulls that are more than twice their body size and weight. Larger cows or post-natal cows may use larger purebred bulls or frozen semen for breeding, but the bull is still less than three times the size and weight of the cow.
3, mating time: The actual mating process ovulation time is not easy to grasp, generally according to the time of mating, Morning Estrus (accept Afraid Cross) afternoon mating, afternoon estrus the next morning mating. In order to improve the breeding rate, compound breeding can be used.
4. Pre Mating check: both bulls and cows must undergo a health check before mating to prevent cross infection. Check out the case of cloth disease, not suitable for breeding, should be directly eliminated.
5, equipment disinfection: The use of artificial insemination with the case, insemination equipment must be checked before, to see whether it can be used normally. At the same time, strict disinfection should be carried out to prevent cross-infection.
How soon after breeding do you know the cow is pregnant?
1. If a cow is successfully pregnant, after 3 months of breeding, she will become very docile, her appetite will increase significantly, and the color of the cow’s fur will also become bright, and after 5 months of breeding, the area of her abdomen will appear larger, the pulse rate will also be significantly increased. The use of animal B ultrasonic testing machine can not only determine whether the cow is pregnant with a bull calf or a cow calf, but also detect the condition of the cow calf.
2. The pregnancy can be analyzed according to the cow’s estrus, appetite, chest circumference, etc. . In general, the cow will not have recurrent estrus after successful pregnancy. The first-born cow can feel the lump in the breast, the amount of milk produced will show a significant decline in the trend, as the breast becomes larger and bulged, the nipple can squeeze out a strong viscous secretion.
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