Skillfully feeding cows in cold winter can produce more milk.

Raise the feed standard. Rumen fermentation and the energy generated by rumen fermentation of dairy cows are transferred to maintain body temperature, and the feeding standard, especially the energy standard, must be improved. Adding 3% to 5% animal fat and supplementing calcium in the cow diet can effectively improve milk yield and milk quality, and the feeding amount of mixed concentrate can be increased by 15% to 20%. The concentrate is best fed into porridge, which is not only palatable and easy to digest, but also increases the cold resistance of the cow.

If there are conditions, it is best to feed silage corn in a certain proportion and feed crop straw, such as corn straw and wheat straw. Special attention should be paid to the acidosis phenomenon easily caused by feeding rancidity silage in dairy cows. If this phenomenon is found, we should immediately stop feeding rancidity silage, feed high-quality hay and treat the disease.

In winter, cows eat more hay, and the secretion of digestive juice increases, only saliva secretes about 50 liters a day. If they can't drink enough water, their appetite will decline, resulting in a decline in milk production and even disease. Dairy cows need about 5 kilograms of water for each kilogram of dry feed. Therefore, the total amount of drinking water should not be less than that in summer. According to the study, the amount of aquatic milk produced by cows drinking 8.5 ℃ of water in winter is about 8% higher than that of drinking 1.5 ℃. However, drinking 20 ℃ of warm water for a long time weakens the physique of dairy cows and reduces the digestive ability of the stomach. The optimum temperature of drinking water for dairy cows in winter is 12-14 ℃ for adult cows, 15-16 ℃ for milk-producing and pregnant cows, and 35-38 ℃ for calves.

Replenish salt. Salt is one of the main components of gastric juice and can supply dairy cows with indispensable chlorine and sodium. With the increase of gastric juice secretion of dairy cows in winter, the demand for salt also increased. If the salt intake is not enough, it will lead to a decrease in appetite and milk production of dairy cows. Therefore, to ensure the supply of a certain amount of salt to dairy cows, the supply of salt should depend on the body weight and milk yield of dairy cows, feed the cows 30-50 grams of salt every day, the dosage should be accurate, to prevent poisoning. In addition to mixing concentrate according to 1% of the diet, salt tanks can also be set up to allow cattle to eat freely.