How to improve the Milk yield of Dairy cows with low temperature in Winter

Increase the shed temperature: the optimum temperature for dairy cow growth is 8-16 ℃, in this range, the metabolic rate and heat production of dairy cows are the lowest. The results are as follows: low feed consumption and low incidence. If the temperature is below 0 ℃, the cow needs to emit a lot of energy in order to maintain its body temperature. Therefore, it is particularly important to maintain the proper temperature of dairy cows in cold winter. Block the west and north doors, windows and walls of the strict cowshed to prevent the attack of thieves; hang curtains on the sunny side of the doors and windows.

Cow

Improve feed standards: rumen fermentation and energy produced by dairy cows are transferred to maintain body temperature, and nutrition for maintenance and production of dairy cows should also be increased, 10-15% higher than the feeding standard. Therefore, it is necessary to increase the mixed concentrate by 15% in winter to maintain or increase milk yield.

Drink enough warm water: in winter, cows eat more hay, increase the amount of digestive fluid, and secrete about 50 liters of saliva every day. If you do not drink enough water, your appetite will decline, resulting in a decline in milk production and even disease. Cows need about 5 kg of water for every 1 kg of dry feed. Therefore, the total amount of drinking water in winter is not less than that in summer. It is reported that 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 ℃ warm water for a long time will weaken the physique of dairy cows and reduce the ability of stomach digestion. The optimum drinking water temperature for dairy cows in winter was 12-14 ℃ for adult cows, 15-16 ℃ for pregnant cows and 35-38 ℃ for calves.

Replenish salt: salt is one of the main components of gastric juice. In winter, the demand for salt increased with the increase of gastric juice secretion of dairy cows. If salt intake is insufficient, it will lead to poor appetite and decreased milk production of dairy cows. Daily salt supply should depend on cow weight and milk yield, generally providing 50-100 grams per day. In addition to mixing concentrate according to 1% of the diet, salt tanks can also be set up to allow cattle to eat freely.

Strengthen exercise: cows are tied up in houses with insufficient light and stale air for a long time in winter, and there is no exercise. This will not only reduce milk production, but also lead to some diseases. Generally, the cows are driven out of the house around noon every day, sunbathing, breathing fresh air, and brushing the cow body 2-3 times a day to keep the body surface clean, promote blood circulation, increase disease resistance and cold resistance, and increase milk production.

Do a good job of hygiene: the enclosure should be clean and dry, and the place where the cow lies had better be covered with soft grass. Plant ash should be often scattered in wet places, which can not only disinfect and prevent disease, but also absorb moisture and deodorize. In winter, cows should be dewormed once, and vaccination should be done to prevent infectious diseases.