The rate of singleton and twin in cattle generally only accounts for 1 ~ 2.3% of the total pregnancy. Except that yaks in alpine regions are in seasonal estrus due to perennial grazing and climate influence, cows kept in houses are generally in estrus for many times all the year round.

The estrous cycle is basically similar, with an average of about 2 1 day and a gestation period of about 280 days. Four cattle breeds of the genus Bos can cross each other, and some of them (such as tumor cattle × common cattle) have reproductive ability. Some cattle breeds (such as yak × common cattle, bison × common cattle) can breed, but bulls can't have children.

Extended data:

Matters needing attention in raising cattle

1, feed

Buffalo and other breeds of cattle will have great differences in feed mix during the feeding process. Other cattle usually fatten with concentrated feed in order to obtain higher economic benefits. Buffalo is actually much bigger than many cows.

Moreover, it does not need any concentrate during feeding. Mainly green feed, just add a little concentrate when appropriate. If there is too much concentrate, it will cause the buffalo to feel unwell and will only reverse it.

Step 2 feed

Buffalo farming is also a problem that needs to be raised. First of all, you have to wait until the first mating age of buffaloes to breed, and secondly, you can't breed any kind of cattle with buffaloes. If breeding is carried out before the first breeding age, it may not only reduce the success rate of buffalo breeding, but also shorten the service life of buffalo.

Secondly, although many hybrid varieties have better hearts, they are all made after special comparison of stems and fruits, and they are successfully cultivated after repeated experiments, so they cannot be easily and casually bred.

3. Insect repellent

Buffalo is very attractive to insects, so we should pay great attention to the insect repellent management of buffalo in Chen Guo. One is to drive away some mosquitoes and blood-sucking flies on the surface of buffalo, and the other is that buffalo has many parasites.

Don't think that getting rid of the pests on the surface will be all right. In fact, the parasites on my body are even scarier. We should give them a physical examination from time to time and feed them with harmless insect repellent or vaccine.

4. stockings

Buffalo can't be kept in captivity all the time like other breeds of cattle, which will affect the normal growth of buffalo and also affect its reproductive ability and physique. Therefore, in the process of feeding, it is necessary to carry out proper stocking, preferably for one or two hours every day. If conditions do not permit, we must reserve it at least once every three days.

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