Symptoms and prevention and treatment methods of external parasites in sheep

Nowadays the demand for mutton is growing larger and larger, and its cost-effectiveness is still higher compared with pork, so more and more farmers are raising sheep. So next, the editor will tell you how to prevent and treat external parasites in sheep, and also talk about some of their manifestations.

I. How to prevent external parasites in sheep?

1. Do a good job in the hygiene and disinfection of the pens, promptly remove manure and sewage from the pens and increase ventilation to reduce the humidity in the pens, and at the same time disinfect the pens comprehensively on a regular basis without neglecting wall cracks, wall corners and all other blind spots;

2. When grazing, choose high, dry grassland, and try to avoid grazing in low-lying, damp places;

3. Regularly use ivermectin intradermal injection for deworming sheep, as well as trichlorfon, amitraz and other sprays or dipping baths for deworming.

II. How to treat external parasites in sheep?

1. Use ivermectin intradermal injection for deworming, and repeat the intradermal injection for deworming after half a month;

2. To improve the deworming effect, trichlorfon or amitraz and other sprays or dipping baths can also be used;

3. *Method ① Use waste oil for smearing ② Use 1 part tobacco and 10 parts water, boil into a juice and smear it ③ Mash fresh walnut leaves into a thick paste and smear it.

III. What are the manifestations of external parasites in sheep?

1. Sheep tick disease

Pathogenicity and epidemiology of sheep tick disease

The tick, also known as grass turtle or grass climber, is an external parasite that bites and sucks blood on the body surface of animals. Ticks can be divided into hard ticks and soft ticks, mainly harming mammals, with a few harming poultry. The growth of ticks goes through 4 stages: egg, larva, nymph and adult. Among them, the larva, nymph and adult must survive by sucking blood on the host's body surface. After the female tick has sucked enough blood on the host's body surface, it leaves the host and hides in the ground, wall cracks and other places, and begins to lay eggs after 1 to 4 weeks. After a period of time, the eggs hatch successively and grow into larvae, nymphs and adults. The active period of ticks in the three northeastern provinces is mostly in summer and autumn. In addition to direct mechanical damage to the host's skin, ticks often become transmitters of many important viral diseases, bacterial diseases and protozoal diseases, and their harm cannot be underestimated. The incidence of sheep tick disease is very high, and the disease is more severe in lambs and young sheep.

2. Sheep tick fly disease

Pathogenicity and epidemiology of sheep tick fly disease

The sheep tick fly is a dark brown wingless external and internal parasite, and is a permanent parasite on the body surface of sheep. The prevalence of this disease is very high throughout China. After the larva of the sheep tick fly leaves the female fly, it quickly becomes a pupa, and after about 20 days it can emerge as an adult fly. The sheep tick fly mainly spreads within a flock through direct contact, and can also spread indirectly through bedding straw, tools and so on.

Symptoms of sheep tick fly disease

Tick flies mostly concentrate on the skin of the sheep's neck, chest, rump, abdomen and other areas to suck blood, making the sheep restless and agitated, reducing feeding, and causing them to bite, kick or rub the areas where the tick flies are parasitic. Severely infected sheep show varying degrees of anemia and weight loss, and their coat is rough, broken or falling off.

Alright, the above is all the content the editor wants to share with you today. Friends who raise sheep, if you find that your sheep have external parasites, you can use the methods above for treatment, and you can also do more prevention in ordinary times. I hope this article can help everyone.