These grass, cattle and sheep can't be eaten.

The second crop of sorghum and corn seedlings after harvest

After autumn harvest sorghum, corn two crop seedlings, contains a lot of hydrocyanic acid. Hydrocyanic acid is a highly toxic substance, cattle and sheep eat it is easy to occur poisoning. You can't use this second crop as fodder for cattle and sheep, and you can't graze cattle and sheep in fields with second crops.

Dew grass

Autumn weather began to cool, morning and evening grass leaves often hung with dew drops, cattle and sheep eat this grass will cause rumen bloating disease. Therefore, cattle and sheep grazing in autumn should wait for the sun to rise in the morning, after the dew disappears, and return to grazing before the dew appears in the evening.

Frosted castor leaves and stems

In late autumn, castor leaves and stems hit by frost contain a kind of ricin toxin, which is easy to be poisoned after eating cattle and sheep.

Half dry and half wet sweet potato seedlings

Cattle and sheep eat a lot, it is easy to suffer from intestinal obstruction disease (also known as constipation, knot disease). Because sweet potato harvest time, seedlings have been aging, seedling coarse fiber increased, and then by sunlight exposure, its coarse fiber becomes more soft, and has toughness. After the cattle and sheep feed, these flexible and not easy to break the coarse fibers in the intestine entangled into a group, some blocked in the large intestine, some blocked in the small intestine. If the disease is not diagnosed and treated in time, it is easy to cause the death of cattle and sheep.

The soft skin on the cob.

The soft cortex peeled off the corn cob after harvest is soft and sweet. Cattle and sheep like to eat it very much, especially when they are hungry. Some farmers are busy with farm work, in order to save time, do not cut short, do not mix grass, directly feed cattle and sheep with whole corn cob soft skin, this is very dangerous. Because corn cob soft skin although sweet taste, cattle and sheep also like to eat, but it contains a lot of crude fiber, toughness is particularly strong, not easy to chew and digest, in the flap stomach aggregation caused by obstruction, a long time will ferment, corruption, gas production, and produce a large number of toxic substances, resulting in cattle and sheep due to body acidosis death.