eat, but don't overeat. Corn seedlings are fine.

poisoning caused by cattle eating too much corn. The symptoms are as follows: the abdomen is full and hard, and those who eat dried corn have onset for more than 12 to 24 hours, with mild symptoms. Fasting cows eat corn early and their symptoms get worse. People who eat fresh corn for more than 2 to 5 hours have acute onset, such as watery stools, sunken eyeballs, shaking in walking, depressed spirit, anuria, weak and rapid pulse, and in severe cases, they can't afford to lie down and fall into a coma.

Cattle are vegetarian animals, and they have a wide range of food, like to eat grass, and also like to eat some green plants (or fruits), such as peanuts, sweet potato vines (seedlings), corn (seedlings), rice, wheat seedlings and so on. Cattle have strong adaptability and can adapt to the local climate well, and its suitable temperature is 15-25℃.

All cattle feed needs these substances:

1. Grass

Grass is the best food for cattle. Although there is a wide range of food, cattle actually prefer sweeter food, so many young plants can be used as a kind of cattle feed. The most common is ryegrass, which can be cut in rotation all year round, like leeks.

2. protein

Beans are indispensable, and protein in beans can increase the chewiness of beef. Bean cake has the highest nutritional value among all kinds of cattle feed, and its crude protein content is higher than any kind of cake feed, and its lysine content is 2.5%-3%, which is 1 times higher than that of corn. It is the best feed for cattle to supplement protein.

3. Crude fiber

All kinds of crude fiber foods are not needed. Crude fiber feed for cattle raising is usually composed of hay and straw. Alfalfa is an important source of crude fiber in feed. Alfalfa has strong roots and developed roots and necks. When it grows up, it will flourish. Because of its rich taste and excellent grass quality, many cows like to eat it. It can be dried in autumn and summer, which is suitable for storage in winter.

4. Minerals

Some natural minerals are also indispensable. Cattle feed is mainly plant stalks, but the content of inorganic salts in plants is relatively low, which can not meet the needs of beef cattle. At this time, additional minerals must be added to achieve the balance of inorganic salts in the feed. In the feed of beef cattle, the mineral elements that should be supplemented most are sodium, chlorine, calcium and phosphorus. Generally, all kinds of mineral elements, including salt, are fully mixed together and then pressed by high pressure to form a block product with certain strength, so that cattle can supplement minerals by licking, which is convenient and safe to apply.