Cold weather forages foot breeding golden season autumn cow breeding precautions

The autumn weather is cool, the forage is abundant, the bull is energetic, the cow estrus cycle is short, the duration is long, it is the golden season for breeding. In production, we should grasp the following points:

Cow

First, balanced nutrition to prevent excessive intake of protein and energy feed resulting in excessive obesity of cows, affecting the quality of mating. The cow of the right age is of medium body condition, but fat and not thin. The cow is in poor condition, so properly adjust the feed ratio, increase the times of nutrition and supplementary feeding, prolong the grazing time, mow and feed the cow to make the cow in estrus. Nutrition should be balanced at ordinary times.

Second, reminder. In order to ensure that cows can be in estrus in the best pregnancy season and increase the conception rate, cows that have not been in estrus for a long time can be properly urged to do so. ① seducing. Let the oestrus bull chase the estrous cow and promote the cow to be in estrus. ② Chinese herbal medicine for aphrodisiac.

Third, breeding at the right time. After the cow is in estrus, the appetite decreases, the excitement is restless, likes to approach the bull, climbs across each other, often makes the micturition posture, but the urine quantity is small, the vulva flush, the hyperemia swelling, slightly opens, flows out the white translucent mucus, the individual cow also can flow out a small amount of blood. At this time, touch the cow's buttocks, the oxtail is high, quiet and motionless, and the hind legs are spread out to make mating movements. After that, the appetite gradually recovers, the libido decreases, the swelling of the vulva gradually fades, and the mucus is less and thicker (for rectal examination, estrus is in follicular maturation or ovulation), it is most appropriate to breed or inseminate the cow at this time. Artificial insemination can improve the conception rate of cows, especially the rectal grasp method, the effect is better.

Fourth, strengthen management. During the breeding period, the green feed and concentrate of the breeding bull should be fed. Do not exercise strenuously within 1-2 hours after mating, and avoid drinking water or eating too much. Within 15 days after mating, supplement at night, add 1-1.5 kg of bran, and provide clean drinking water containing a small amount of salt to promote the implantation of fertilized eggs. During pregnancy, cows are fed with feed rich in protein, vitamins and minerals to meet the needs of cow and fetus, placenta and uterine development; it is strictly forbidden to feed feed that is moldy, spoiled, frozen, toxic, too acidic and strongly irritant. to prevent enteritis, miscarriage, weak fetus or stillbirth. The barn should be quiet to prevent cow miscarriage caused by excessive shock, squeezing, slipping, whipping, top shelf, etc.