Males and females reach the sexually active age, although the reproductive organs have been fully developed and have normal reproductive ability, but at this time the body's growth and development have not yet been completed, it is not appropriate to breed, so as not to affect the growth of the cow itself and the fetus. After the production performance. The premature mating of male and female cows will affect their own health and growth. The yaks produced are of weak constitution, have small birth weight, are difficult to keep, cows are affected by postpartum milk production, bulls' sexual performance declines earlier, and the useful life of the bull is shortened. . Late breeding is unfavorable to breeding, raising the cost of feeding, and it is easy to make the cow too fat, not easy to suffer from the fetus; the bull is easy to cause masturbation, impotence and other diseases and affect the breeding effect. Therefore, it is of great significance to correctly master the appropriate ages of males and females in order to improve the quality of the ten groups of stars, give full play to their production performance and increase the rate of production. The initial age of cows should be determined according to the type of cattle and its specific growth and development, generally later than the sexual maturity, and the weight should be about 70% of the adult weight at the beginning of breeding. When the age has been reached and the weight has not yet been reached, the initial age should be postponed; on the contrary, it can be appropriately advanced. The initial mating age of general beef cattle is: early maturing varieties, bulls 15 to 18 months old, cows 16 to 18 months old, late maturing varieties, bulls 18 to 20 months old, cows 18 to 22 months old. Red Tomato Flakes,Dehydrated Tomato Flakes,Dehydrated Tomato Flake ,Onion Slices Sample Shanghai Sinospices Sourcing Ltd , https://www.garlicall.com