Feed for Chinese Holstein dairy cattle in subtropical zone

Abstract

The present invention discloses a feed for Chinese Holstein dairy cattle in a subtropical zone. The feed is composed of the following raw materials: corn silage, whole cottonseed, alfalfa, arrhenatherum elatius, sugar beet pulp, beer residues, molasses, water, pineapple residues, rapeseed meal, corn, slow release urea, calcium hydrogen phosphate, distillers dried grains with soluble, edible salt, probiotic yeasts, sodium hydrogen carbonate, magnesium oxide, soybean meal, soybean skin particles, rumen bypass fat powder and a premix additive. A provided feed formula is scientific and reasonable. According to a certain ratio, high-quality hay, a mineral additive, trace elements, vitamins, industrial by-products, etc. are optimized and formulated, so that the feed can ensure rumen health of the Chinese Holstein dairy cattle, reduces heat stress, increases milk production, and improves economic benefits of breeding the Chinese Holstein dairy cattle.

Description

technical field [0001] The invention relates to a feed for Chinese Holstein cows in subtropical regions. Background technique [0002] Milk is one of the oldest natural beverages and is known as "white blood". Chinese Holstein cows are the most important breed of dairy cows in my country, which are gradually formed from purebred Holstein cows after long-term domestication and breeding in my country, especially through crossbreeding with cattle from all over the world. [0003] The most suitable living environment for Chinese Holstein cows is a temperature of 9-17°C and a humidity of 30-38%. South China has a subtropical monsoon climate, with hot and rainy summers and mild and humid winters. For Chinese Holsteins raised in South China, they are in a state of heat stress from April to November every year, and heat stress greatly affects South China. Milk production of regional Chinese Holstein cows. [0004] Stress refers to the sum of the body's non-specific responses to v...

AI Technical Summary

Problems solved by technology

When the ambient temperature and humidity exceed a certain range (the air temperature exceeds 26°C and the humidity is greater than 40%), the cows begin to suffer from heat stress, which is manifested by the cow’s respiratory rate exceeding 70 times / min, rectal temperature exceeding 38.5°C, and dry matter intake. The decline in milk production will eventually lead to a decline in milk production, a decline in reproductive performance, a decline in immunity, and a decline in milk quality, which seriously affects the economic benefits of dairy cows.

At present, the mode of raising dairy cows in southern China is still relatively extensive, lacking high-quality forage hay, and unreasonable feed formula, resulting in low output of Chinese Holstein dairy cows, high disease rate of dairy cows, and large fluctuations in milk physical and chemical indicators and health indicators

Images