Many pig-raising partners don't know how to judge whether their pig parasite infection is serious, or just rely on the eyes. Now two simple and very accurate methods to detect parasitic infections and test the effects of anthelmintic drugs are introduced. Everyone, I hope everyone can master it.
To determine whether the parasite infection and deworming effect in the pig farm is ideal, the pruritus index method and the saturated saline floating method are generally used.
First. Itching index method
It is used for the detection of the degree of infection of the body surface and the effect test of killing cockroaches.
The pruritus index method refers to the static observation of a group of pigs (not less than 30 heads), the total number of itching in 15 minutes divided by the number of pigs observed. (ie 30 pigs, the total number of itching in 15 minutes divided by 30, which is the pruritus index)
1. Severe infection pruritus index is greater than 0.4.
2, moderate infection pruritus index 0.1-0.4.
3. The mild infection pruritus index is less than 0.1.
Note: If the pruritus index drops significantly after 7 days of using the insect repellent on the farm, the deworming effect is obvious.
Second, saturated brine floating method
It is used for the detection of the degree of infection and the effect of deworming in aphids, aphids, esophageal nematodes, pulmonary filars, and porcine kidneyworms.
1. The number of eggs in a gram of pig feces is more than 5,000.
2. The number of eggs in a medium-sized infection of one gram of pig manure is 500-5000.
3. The number of eggs in a slight infection of one gram of pig manure is less than 500.
Regardless of internal parasites, surface parasites, and moderate infections, deworming must be performed.
Note: Before using the deworming drugs on the farm, if the number of eggs is more than 500/g, after using the insect repellent, no adult worms are discharged, and the eggs are detected again. The number is significantly reduced, which proves that the deworming is effective.
Preparation of saturated brine: After the container is filled with water and boiled, slowly add salt and stir it occasionally until the salt is no longer dissolved. The cooled liquid is saturated brine. 100 ml of boiling water is added with about 35-40 g of salt.