This summer, 60 black-and-white cows in the Qingpu Liantai Dairy Factory have experienced a significant increase in their appetite: three kilograms per day and a 20% increase in milk production. This time, it is no longer a bitter chemical pill but a refreshing Chinese herbal medicine made from aromatic plants such as mint, musk, and Perrin.
Dairy cows are cold and heat-burdened. When summer arrives, appetite and resistance both decrease, and there are a series of chain reactions such as anemia, hypertension, gastric ulcer, and mental depression. The milk production is significantly reduced. Studies have shown that the weather at 10°C-15°C is the most suitable for milk production; over 27°C, the milk production is significantly reduced; at 27°C-40°C, the milk becomes thin; if it exceeds 40°C, the cows almost stop eating and appear collapsed and shock.
Professor Hua Xiuguo, deputy dean of the School of Agriculture and Biology of Shanghai Jiaotong University, told reporters that this kind of discomfort brought about by high temperatures is called “heat stress syndrome†in the industry and is similar to the human heat stroke response. Every summer, about 100,000 tons of cow milk in southern China “evaporate†due to high temperatures, and Shanghai loses 25 million yuan each year.
How to keep cows safe in summer? Ventilation, rain curtains and other physical cooling costs are too high, and chemical drugs make cows difficult to swallow, with some toxic side effects and residues. Inspired by traditional Chinese medicine theories, Hua Xiuguo and his colleagues thought of using aromatic plants to detoxify the cows.
With the support of the Shanghai Science and Technology Commission, the research group cooperated with Shanghai Uber Biotech Co., Ltd. to make micro-or nano-scale powders of aromatic plants such as mint, musk, and perrin, and mixed them into three meals a day. Tests have shown that this natural Chinese herbal medicine, such as a refreshing appetizer, is a refreshing appetizer for the dairy cows. At the same time, because the particles of the powder are small enough and the cell walls of the aromatic plants are opened one by one, their active ingredients are more easily absorbed. It is no wonder that the 60 dairy cows that “come in†have reduced their doses by half, but the milk production It's a lot better, and it's full of energy throughout the summer.
At yesterday's expert acceptance meeting organized by the Shanghai Municipal Science and Technology Commission, Dr. Zhang Kechun, director of the City Dairy Cow Research Institute, said that Shanghai is a good market for milk, but it is not a good place for milk production. The biggest problem is that Shanghai is extremely hot and humid in summer. Intensified year by year. He said that aromatic Chinese herbal medicine is a brand-new therapy for heat stress of dairy cows. Naturally there are no side effects and the promotion prospects are promising.
At present, this herbal formula has been applied for national patents and trials have been conducted at dairy plants such as Nanjing. Hua Xiuguo said that 60 cows are still just a small sample of trials. In the next step, the research group will conduct further experiments after further optimization of the formula. If the results are significant, the formula is expected to be put into mass production and will be used on a large scale.
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