Pig whipworm disease and its diagnosis and treatment

Pig whipworm disease and its diagnosis and treatment

Overview of Swine Trichinosis Swine whipworm disease, also known as swine tail nematode disease, is an endoparasitic disease caused by parasitic flannel parasites in the pig cecum. The disease is widely distributed and can occur throughout the year. It has long been a common problem affecting the pig industry. Intensive pigs and free-range pigs of the disease will occur, especially in some farms that are aging and poorly managed. Piglets are particularly vulnerable to whipworms. People with severe infections often cause death. The pig industry suffers huge losses as a result.

The eggs of the pig whipworm are excreted in the faeces and develop into infective worm eggs after about 3 weeks. The infection performance lasts for 6 years. The pigs consume infective eggs by feeding on feed, drinking water or digging the earth. Incubation and development in the small intestine and cecum of pigs rob the pig of nutrients, inhibit the mucosal immunity of the pigs to the bacteria, and cause necrotic proliferative colitis, leading to the death of pigs.

Clinical symptoms and necropsy patients with whipworm disease in very light pigs no obvious symptoms; light mental fatigue, slightly elevated body temperature, body weight loss, coat dull, feed conversion rate decreased; severe infection, the pig extremely Failure, arched back, walking swing, body temperature as high as 41 °C, loss of appetite, pale body, dehydration, stubborn under blood stasis, exfoliated intestinal mucosa with the feces, delayed to 5 days to 6 days due to respiratory failure and died. The anatomical lesions can be seen mainly: a large number of worms stick to the cecum mucosa, some worms are firmly fixed on the mucosa, and inflammatory exudates are formed around a large number of worms to form fibrous necrotic membranes, which are gathered together into a circle. Shaped cystic nodules, intestinal mucosal ulcerative necrosis, mainly cecum and colon segments, and congestion, hemorrhage, and edema.

Diagnosis and treatment from the clinical symptoms of pigs diagnosed with whipworm disease should be differentiated from swine dysentery, if the use of antibiotics is not effective, combined with pathological changes in necropsy should consider whipworm infection. In addition, in order to confirm the diagnosis, we can inspect the eggs. Weigh about 10g of sick pigs, crush and put in appropriate amount of saturated saline, stir and filter for half an hour, and then take the liquid film on the slide glass and cover it. Microscopic examination, if we observe a lot of drum-shaped, brown-yellow, eggs with occluded eggs at both ends, it can be diagnosed as whipworm infection.

In general, lemudazole, albendazole, ivermectin, doramectin, hydroxypyrimidine, etc. all have a certain effect on whipworms. However, ivermectin is relatively less toxic, safer and more effective, and has no cross-resistance with other drugs. From the results of the treatment of swine whipworm disease with different levels of ivermectin products, the author believes that products with ivermectin content above 0.5% should be used for treatment. It is recommended to use Yigan Dijing produced by Hengfengqiang Animal Pharmaceutical Co., Ltd. The content of ivermectin is 0.6%, and it also contains 5% of fenbendazole. Because fenbendazole has a good insect repellent effect on hairtail nematodes, aphids, aphids and so on. Therefore, if idanosein is used to treat pig whipworm disease, it can have a double killing effect on pig whipworm, especially for the killing of early larvae of whipworm. At the same time, it was observed that pigs infected with severe porcine whipworms were doubled in doses according to the instructions of Yigan Dijing from several large-scale pig farms in the western Guangdong Province of Guangdong Province. On the second day of the medication, a large number of worms were observed to be excreted from the feces, which showed that the insect repellent effect was apparently rapid.

Veterinary CT

Veterinary CT,Vet Care,Vet Diagnosis X Ray,Animals Diagnosis X Ray

MinFound Medical Systems Co., Ltd , https://www.minfoundmed.com