<h1 class="pgc-h-arrow-right" data-track="1" > overview</h1>
In 2020, China's milk production is 34.4 million tons, and the number of dairy cattle is about 14 million heads. Since 2008, China's large-scale dairy farming industry has developed rapidly, and the proportion of large-scale breeding with more than 100 heads in the stock in 2020 reached 67.2%, and this proportion was only 19.5% in 2008.
It is understood that at present, 100% of China's large-scale farms are mechanized for milking, and 95% are equipped with full mixed diet (TMR) mixer trucks. Due to the significant improvement of the feeding technology, feed conditions and equipment level of dairy farms, the yield of dairy cattle has increased significantly, reaching an average of 8.3 tons/year. As for the cow yield of the demonstration cattle farm monitored by the national dairy industry technology system, it has increased from 5.2 tons in 2010 to 9.3 tons in 2020, which is also a medium-high level in the world.
In addition, there are 14 dairy cows with a yield of more than 11 tons in the domestic TOP30 ranch group, which has reached the world's advanced level.
<h1 class="pgc-h-arrow-right" Data-track="16" > Why do cows keep producing milk? </h1>
In fact, this is a wrong problem, knowledgeable people know that there is no phenomenon that cows have been producing milk, under normal circumstances, a milking period of dairy cows is 305 days, and there is a dry milk period of 2 months, and the cows also need to "rest", otherwise the service life will be greatly reduced, and it will soon be abolished.
As a mammal, cows will only produce milk after giving birth to calves, and since the cow's gestation period is about 280 days, in order to maximize economic benefits, dairy farms usually let the cows become pregnant again 2-3 months after the cows give birth. In other words, most of the time the cow has to produce milk and conceive the fetus, which is very hard. Fortunately, the last two months of pregnancy do not produce milk, this stage is called dry milk, which is their only "holiday".
<h1 class="pgc-h-arrow-right" data-track="17" > the significance of the dry milk period</h1>
The dry milk period of cows is not set in stone, and the main influencing factors include the lactation performance, age and physical condition of cows. In general, 45 days to 75 days, the average is 60 days.
There are four main points of significance of the dry milk period:
First, after a 10-month lactation period, the cow is extremely tired and needs to rest to recover its physical condition.
The second is to provide a good guarantee for the healthy growth of the fetus in the last 2 months, which is conducive to eugenics.
The third is to help the cow's breast tissue get a good rest and adjustment, and provide a reliable "tissue guarantee" for high-quality milk production in the next lactation period.
Fourth, the cow will fully accumulate nutrients during dry milk, laying a high-quality "material foundation" for the milk production in the next lactation period, and is conducive to avoiding the occurrence of difficult delivery during childbirth.
In short, it is an illusion that cows have been producing milk, and in actual production, there will be 2 months of "vacation" every year.