Nutritional regulation technology for dairy cows in high temperature season

Summer temperatures are high and dairy cows are prone to heat stress. In order to reduce the adverse effects of high temperatures on dairy cows, in addition to taking corresponding measures from the construction of dairy farms, feeding and management, and disease prevention and control, necessary nutrient regulation must also be carried out. The following measures can be taken to adjust.

1, feeding green and juicy feed

Juicy green feed is rich in carbohydrates and water. It not only has good palatability, but also thirst-quenching, which is very beneficial to cool the sunstroke and relieve heat stress of cows. Under the premise of ensuring adequate intake of dry matter, adequate feeding of high-quality grass, carrots, wax gourds, watermelons, sweet potatoes, potatoes, etc., is beneficial to increase milk production and increase milk fat percentage of dairy cows. Concentrated feed can be fed with some good feeds such as bran and soybean meal.

2, feed congee material

Convert some condiments to porridge. 1.5 kg of concentrate feed, 1.25 to 2.5 kg of carrots, 58 kg of water, boiled porridge, let cool and pour on silage, can increase the urine output of the milk steak and take away more calories.

3, salt water bran soup

Feeding saltwater bran soup to dairy cows can increase the appetite of dairy cows, ensure the amount of drinking water, regulate metabolism, and effectively control the decrease of milk production. Every time a cow feeds 50 kilograms of water, 50 grams of salt and 1 to 1.5 kilograms of bran are fed 3 times a day.

4, feed green bean soup

Mung bean soup has the function of clearing heat and detoxifying, and preventing sunstroke and cooling. Conditional farms should drink green bean soup for dairy cows in summer. Use fresh green beans 1 to 1.5 kilograms, add 4 to 5 kilograms of water, boil for 1 to 2 hours, add 40 kilograms of clean drinking water, and give the cow a Beverage Service once a day.
5, add sodium bicarbonate

Supplementing sodium bicarbonate is beneficial to maintain acid-base balance in dairy cows, and it also helps digestion, which can increase the intake of dairy cows. The amount of sodium bicarbonate is generally 3.84% of the concentrate, or 340 grams per cow per day. It works better with citric acid. When using sodium bicarbonate, the amount of salt should be properly reduced.

6, add potassium chloride

When heat stress occurs in cows, the potassium output increases significantly, causing the decrease of potassium in the blood. Potassium must be added. Potassium chloride is generally added to cows drinking water or in diets at a daily dose of 60-80 grams per cow.

7, supplement vitamin C

Cows produce heat stress, vitamin C synthesis ability decreases, but the demand increases, so should pay attention to vitamin C supplementation to cows in hot summer. In the process of heat stress, vitamin C can also inhibit the rise of body temperature in dairy cows, promote appetite, and increase resistance to disease. In summer, 0.04 to 0.06 vitamin C can be added to the cow's feed.

8, vitamin E supplement

Vitamin E prevents the oxidation and destruction of fat in dairy cows, prevents the formation of oxides in the body, prevents the oxidation of other vitamins, and promotes the absorption of vitamin A and vitamin D in the intestine. In summer, 3 to 5 times more vitamin E can be added to feed to reduce the risk of heat stress.

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