First, dew grass: The weather in the autumn season is getting cooler, and the leaves of the grass are often covered with dew drops in the early morning and early evening. Cows and sheep eat this grass will cause rumen swelling disease. Therefore, grazing cattle and sheep in the morning to wait for the sun to rise, dew, and then go out after the disappearance of animal husbandry, in the evening before the dew appeared to return to animal husbandry.
Second, the cream hit the leaves and stems of ramie: The leaves and stems of ramie hit by frost contain a toxin called ricinine, which is easy to poison after eating.
Third, after the harvest of sorghum, corn seedlings: sorghum, corn seedlings, contains a lot of hydrocyanic acid. Hydrocyanic acid is a highly toxic substance that is easily poisoned by cattle and sheep. Can not use this two seedlings as forage of cattle and sheep, can not go to the sorghum seedlings, corn seedlings in the field to grazing cattle and sheep.
4. Semi-dry and semi-humid sweet potato pods: When the sweet potato is harvested, its pods are already aged and the crude fiber is increased. After a few days of the sun, the fibers become more flexible and flexible. The cattle and sheep feed on these flexible and not easy to break. After the crude fiber, it is tangled in the intestine, some obstructed in the large intestine, some obstructed in the small intestine, if the diagnosis and treatment is not timely or unreasonable, the diseased cattle and sheep are very likely to die.
Fifth, the soft skin on the corn on the cob: it is a by-product of the corn cob after harvest, its soft and sweet taste, cattle and sheep are very fond of eating, especially when the cattle and sheep are often gulp hungry whole mouth to swallow. There are also farmers who are busy with farm work. In order to save time and do not mix grass, it is very dangerous to directly feed cows and sheep with whole pieces of corn on the soft skin. Because corncob soft skin contains a lot of crude fiber, its toughness is particularly strong, and it is difficult to chew and digest. It often accumulates in the stomach of cattle and sheep and causes obstruction. After a long time, it will ferment, corrupt, produce gas, and produce a large amount of toxic substances. Cow and sheep poisoning and body poisoning and death.
6. Drunk horse grass: Drunk horse grass is a perennial grasses. All parts of China grow, especially in grasslands and pastures. Drunken horse grass generally sprouts in early spring and blooms from July to October until it stays green in the late autumn. The plant height is 60 cm and the leaves are long and narrow. Cattle and sheep are very easy to feed and poisoning occurs after eating. Symptoms after poisoning: foaming at the mouth, depressed spirit, loss of appetite or repeal, limb stiffness, gait, increased body temperature, drunkenness. Occasionally, sick animals show irritability and nervousness. Sometimes sick animals can't stand up and fall into a lethargic state. In severe cases, asthma and abdominal pain can occur.
Seven, poisonous celery: The poison celery is also called the wild celery, its toxin "the poisonous pheromone" mainly concentrates in the root, the stalk part. Cows and sheep eat poison celery can cause poisoning in any part. The lethal dose of its roots to cattle and sheep is about 70 grams. Symptoms of poisoning: unrest, runny nose, large abdomen, diarrhea, foaming at the mouth. In severe cases, various reflexes weakened or disappeared, the pulse speeded up, body temperature decreased, breathing difficulties, trismus, mydriasis, and eventually death.
Eighth, the rambling flower: The rambling flower is also called the yellow flower grass, yellow azalea, Ying Shanhong and so on. The flowers and leaves of rambling flowers contain toxic ingredients such as azaleas, which have strong toxicity to cattle and sheep. The toxin first excited the central nervous system, then inhibited it, and finally died of paralysis of the respiratory system, heart, and blood vessels. In addition, rhododendron toxins have a stimulatory effect on the digestive tract and can cause inflammation of the digestive tract. Symptoms: Diseased cows and sheep runny, foaming mouth, vomiting molars, loss of appetite, rumination or disappearance, bloating, diarrhea, irritability, general malaise. When he stood up, his limbs opened, his gait was sturdy, and his pupils first shrank and then heaved, and his heartbeat was irregular. Gastrointestinal motility is enhanced, diarrhea occurs, and bloody mucus is mixed in the feces. Later on, he could not afford to lie down, his body temperature dropped, his heart rate accelerated, and he died of respiratory central nerve palsy.
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