A cow can breed for several years

There are many friends who have raised cows, but novice breeders often have some questions. Today let's take a look at how many years a cow can breed.

A cow can breed for several years

Breed for about 3-4 years. The breeding time of a cow depends on its breed and growth. The genetic quality of cows, the adequacy of milk and the health of breeding bulls will all affect their breeding years.

2. Introduction to cows

1. The first estrus in a cow is called proestrus. The time of onset of proestrus in Holstein cows is related to the environment, climate and nutrition, which usually occurs at the age of 6 ~ 12 months. In most reserve cows, the performance of first estrus is often not obvious, that is, ovulation without signs of estrus, so it is not easy to be observed. Proestrus is the possible period for cows to reproduce, but at this time the performance of estrus is not obvious, the estrous cycle is not normal, and the reproductive organs and body of cattle are growing and developing.

Therefore, the first mating (first mating) of a cow is determined by the physiological condition of the cow. The first mating time of dairy cows in most areas of China is 15-17 months old, and the weight of cows should reach 360 kg (about 70% of adult body weight).