1 Deworming method
There are three kinds of commonly used insect repellent methods, including insect repelling in vivo, deworming in vitro, and insect repelling in vivo and in vitro. In vivo repellent method is mainly to repel the gastrointestinal worms (nematodes, aphids, and trematodes) in the sheep by oral or intramuscular injection. The external repellent method is mainly used to control the body surface of worms, cockroaches and cockroaches. And so on, in vivo and in vitro repellent methods are mainly the use of intramuscular injection of drugs to prevent and control parasites in vivo and in vitro, and are currently the most commonly used methods of deworming.
2 commonly used deworming drugs
In order to obtain the best insect repellent effect, the principle of broad spectrum, high efficiency and low toxicity should be followed in drug selection and application. At present, the commonly used deworming drugs mainly include the following types:
2.1 Prothiophene carbazole (Net, anti-creep sensitivity)
It is a broad-spectrum anthelmintic for worms in the body, which is mainly used for spring deworming in flock and can drive off nematodes, aphids, and trematodes in vivo. 10 to 12 sheep, only 5 to 6 sheep/bred sheep, were taken orally.
2.2 Ivermectin (Iridian)
It is widely used as an insect repellent in vivo and abroad and is widely used as an insect repellent in spring and autumn. It can eliminate nematodes in vivo and in vitro. It is the most commonly used anthelmintic for pregnant sheep. Safer, each sheep was injected subcutaneously with a body weight of 0.02 ml/kg.
2.3 Abamectin (killed, insect killer, afortin, alijia)
Insect repellent methods and effects are basically the same, with ivermectin, mainly used for spring and autumn deworming. Its characteristics are broad-spectrum insect resistance, high efficiency, low toxicity, safety, etc., and have a strong effect on most nematodes, ectoparasites and other arthropods (insects are not effective). Each sheep was injected subcutaneously with a body weight of 0.02 ml/kg, not muscle and intravenous.
The drug is a commonly used drug to repel parasites in vivo and in vitro, and it can effectively repel nematodes in vivo and in vitro. It is safe for pregnant sheep. Each sheep was injected at a dose of 0.05 ml/kg body weight.
It is mainly used to drive off flukes in vivo (liver flukes, double-chamber trematodes, etc.) and is effective in repelling flukes in spring and autumn in low-wet swamp areas. 2 big sheep/only, 1 lamb/only.
Can remove brain echinococcosis and a variety of parasites, 40 ~ 80mg per kilogram of body weight, 1 oral, once every 3 to 5 days.
In the specific deworming work, pay attention to the following issues:
3.1 The sheep used for deworming must be healthy sheep, and the diseased sheep must be cured and then repelled. In strict accordance with the manufacturer's drug dosage instructions, do not arbitrarily increase the dose.
3.2 Lambs born in the spring are usually dewormed for the first time from September to October of that year. Young goats are subject to nutritional stress such as weaning in the autumn and are vulnerable to parasites, so protective aphids are required once in the fall.
3.3 Pregnant ewes can be dewormed 1 month before birth and 1 month after birth. This will not only remove the parasites in the ewes, but also facilitate the nursing and reduce the parasite's infection to young lambs. The dose is given as 2/3 of the normal dose.
3.4 When the insects are first tested in small groups, there is no adverse reaction before large groups can be dewormed.
3.5 Pioneer big sheep when driving insects, rear drive lambs.
3.6 Prepare the mother drug. After deworming, it is necessary to closely observe whether the sheep have toxic reactions, especially when large-scale deworming. When only toxic reactions occur in sheep, effective measures should be taken to actively treat them.
3.7 The extermination of ectoparasites from goats should be repeated 1 to 7 days after the 1st repellent. To consolidate the efficacy.
3.8 Strengthen feeding management to improve the body's physique and disease resistance. Maintain the cleanliness of the environment in sheep pens, sports grounds, etc. Site cleaning and disinfection should be carried out carefully to remove the parasites and eggs that are excreted with the faeces. As long as the grazing sheep are left for 3 to 5 days, the feces will be concentrated and fermented. If conditions permit, the parasite eggs in feces should be regularly monitored and the intermediate host should be eliminated. Attention should be paid to the health of feed and drinking water to avoid contamination of feed and water by eggs.
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