It is known that head lice infest cows because of violations of conditions of detention. Calves are susceptible to parasite bites more often, as they have not sufficiently strengthened immunity. The danger of wingless insects lies in their ability to endure a lot of serious diseases. Lice are carriers of viral, protozoal and bacterial diseases. If a sucking insect is found on the body of an animal, the infected cow should be immediately isolated and the stall room should be treated with disinfectants.
External description of the parasitic individual
Adult lice have inconspicuous color, they are difficult to detect in the wool of cattle without a thorough inspection. In addition, the insect very quickly moves through the body and is lost in the thickness of the cattle hair.
A clear sign of the presence of bloodsuckers is the appearance of small rounded eggs in cattle. Nits are fixed, firmly deposited on the hairs of the head, neck, focus around the horns and tail of the cow. Lice eggs are 1 mm in size. Shake this education problematic, nits very firmly stick to the animal's hair.
The incubation period lasts 2 weeks. The female lays per day up to 4 eggs. Having appeared on the light, the larvae immediately begin to parasitize on the body of the animal. After 7 days, the eggs become full-fledged imago (the final stage of development of the individual, its ability to reproduce). A month later, an infected animal is diagnosed with pediculosis (skin lesions caused by the activity of lice).
Behavior of an infected cow
Parasites develop on a dirty body of cattle in unsanitary conditions, in dark unventilated stalls.
The typical symptoms of lice infestation are:
- excessive excitability, aggressiveness, sudden movements or, conversely, weakness, apathy and lethargy;
- a sharp decrease in appetite, weight loss;
- decrease in milk yield from a cow;
- the skin is covered with spots, it shows bites, bumps and abrasions;
- the animal constantly rubs against the shoals, hedge, trees and any other constructions available;
- calves are severely worn out and may die.
Launched stages of pediculosis lead to ulcers and bruises in the area of bites. In cows hair falls out (bald patches are visible on the body) and anemia develops.
First isolate the sick individual, then treat
The treatment is performed in a special room, away from the healthy herd. Effective means sold in a pharmacy are insecticides. Positively established drug against lice - chlorophos. Treatment of the body of cattle is a solution of 0.5%. The effect of the drug is effective after several treatments at weekly intervals.
According to the attached instructions, cow wool is rubbed with “Stomazan”, “Neostomazan” and “Ectomin-K” preparations. It is possible to introduce into the body of a sick individual an injection of a medicinal widely spectral drug, Vermek, which destroys all parasitic insects. A veterinarian may prescribe the use of such drugs as Neocidol, Dibrom, Phoxim, Ectopor, Dermatozol, Akrodex.
After the use of insecticides can not use milk, milked from the treated cow, as well as to allow its use calves.
After the procedure, you must wait 5 days. Cannot be treated with insecticides for pregnant cows and young calves.
The wool of a milk cow is treated with "Suminak" or 3-5% oil emulsion. Procedures are repeated every seven days until complete destruction of nits on the body of the animal.
To cure a calf or an adult cow from an infection by folk remedies is quite real. Proven methods do not adversely affect the properties of milk produced:
- for 2 weeks, rubbing wood ash into animal skin;
- in equal proportions dilute salt with vinegar, wipe hard-to-reach areas of the body until complete destruction of the parasites;
- effectively fighting nits and fertile females with lice carries simple kerosene;
- for 20 days, you can rid the cattle of blood-sucking insects by washing the cattle wool with a decoction of wormwood (hold the flowers of the plant for 30 minutes in 1000 ml of hot water, preferably boiled, dissolve 3 pieces of tar soap in it and add pharmacy chemistric water);
- birch tar kills all bloodsucking insects in 10 days. Drugs are rubbed into the neck, spine, near the tail and between the horns of the cow.
Doctors do not recommend self-medication. With undertreated pediculosis, the owner risks losing the animal, since the advanced stages of this ailment are very difficult to cure.
The destruction of parasites in calves
Calves suffer a disease much harder than adults, so it’s worth taking their treatment very seriously. Unnoticed in time signs of lice, can lead to death of the calf. The most common areas of injury are the neck and tail. Lice in calves are treated with special aerosols, shampoos, drops and intramuscular injections.
One of the most common and effective methods of treatment is the treatment of irritated parasites of the skin with 1% chlorophos solution. You can buy in the pharmacy emulsion chloropinene (1.5%) or creolin (1%). Well helps 3% decoction of tobacco. All these tools must be carefully rubbed into the body of the calf and repeat the procedure according to the following pattern: in the summer period after 2 weeks, in the winter - after 23 days, in the autumn and spring - after 17 days.
The best protection is proper care.
To prevent the development of the disease, special events are organized. Carefully disinfect stables and regularly inspect animals for lice. The rules of quarantine and veterinary measures must be strictly observed. Also, cows should be regularly fed with vitaminized feed.
The disease causes significant economic damage to livestock (reduced meat and dairy productivity, reduced production of raw leather). Conducting effective preventive measures reduces the risk of developing head lice in cows and calves.
Share the information presented in the article with your friends - like it.
Tell us in the comments about your experience with calf lice. Did you manage to cope with this task?