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In the spring and summer, the sheep go out to graze and there is a lot of grass to eat. Adult sheep know which grasses can be eaten and which cannot be eaten, which is not a big problem, but young sheep (especially those who have just grazed with the flock) often eat them by mistake because they cannot distinguish toxic substances, which causes poisoning. Common poisonous herbs are: white-headed eagle in spring, poisonous parsley, Du Peng flower leaves, etc.; Wild peach leaves, mountain apricot leaves, oleander leaves in summer; Autumn sorghum and corn stubble seedlings, castor leaves (hemp seed leaves), etc. The same is true for calves, which can also be eaten by mistake.
Pulsatilla
Poisonous parsley
azalea
oleander
1. Symptoms after the sheep eat poisonous weeds
Sheep will be poisoned soon after eating poisonous weeds, and symptoms such as spitting white foam, vomiting, flatulence, diarrhea, increased body temperature, love to stay in the shadows, and accelerated respiratory pulse are present. In severe cases, it can cause death. There may also be agitation, shortness of breath, to difficulty breathing. Rumen puffs, abdominal pain and diarrhea. Subsequently, the muscles of the whole body spasm, the standing is difficult and falls to the ground, the head and neck are thrown back, the limbs are straightened, and the teeth are closed. The heart beats strongly, the pulse increases, the body temperature rises, and the pupils are dilated. In the later stages of the disease, lying still, reflexes disappear, the extremities are cold, the body temperature drops, and the pulse is weak. The stomach and intestinal mucosa are severely hyperemic, bleeding, and swollen. Congestion of the brain and meninges, endocardial, yang, kidney and bladder mucosa and subcutaneous nodal tissue have bleeding phenomena, and the blood is thin.
2. Precautions
When the grass returns to green in the spring, do not graze on the pasture where the poisonous grass grows more, so as not to be poisoned by accidental eating. When grazing in early spring and late autumn, a small amount of the same material should be fed before grazing, so as to avoid the animals from eating poisonous weeds by mistake due to hunger and lack of food. It is forbidden to feed moldy forage. Feed and forage should be dried and stored, and the storage place should be dry and ventilated. Carefully check before feeding, if mold is found, it should be discarded.
3. Treatment after sheep poisoning
Once sheep poisoning is found, the cause must be found out first and treated in time. After the sheep is found to have eaten poisonous herb poisoning, it is immediately washed with 0.5% ~ 1% tannic acid or 5% ~ 10% charcoal powder, and after 2 to 3 consecutive times, the iodine solution (iodine 1g, potassium iodide 2g, water 1.5L) is taken internally for 100 to 200 mL, and then taken once after 2 to 3 h, and 5% to 10% dilute hydrochloric acid can also be filled, 250 mL for adult sheep, and 100 to 200 mL for lambs aged 3 to 8 months. For more severe poisoning, the rumen can be cut open, the toxic contents are removed, and then the adsorbent, viscose or laxative are applied. When the sick sheep are excited and cramped, antispasmodic and sedatives can be applied, such as bromine preparations, chloral hydrate, magnesium sulfate, chlorpromazine and so on. To maintain cardiac function, cardiotonic agents can be applied.
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Responsible editor: Li Yunfei, responsible proofreader: Liu Aochu, second instance trial leader: Zhang Fuxu