If the sheep have started to lose hair or have it, the reasons may be completely different. This can occur both naturally and through illness. Let's see why sheep have wool and how to solve similar problems in animals.
All sorts of reasons for hair loss
A caring owner, of course, knows that not only sheep, but also other livestock, wool falls during shedding. This is the first and most harmless reason. But the molt is different: seasonal, age, pathological and non-periodic. Seasonal - natural for sheep, it happens in spring. During this period, the animals lose fluff and transient hairs. By autumn, the wool layer is restored completely.
Sheep molt occurs at a young age. Lambs lose coarse hairs, which are replaced by down. Fine-fleeced sheep, for example, molt completely unnoticed, and the spring loss of wool is very weak. On coarse-haired lambs the change of cover is also imperceptible, and the fallout is painless for the animal. But the pathological loss of wool in sheep is recorded with poor nutrition, poor diet.
Starving animals can molt out of season or pathologically go bald. In addition, the rapid loss of wool in sheep can be the result of stress and poor circulation. Non-periodic molting is the normal process of ridding an animal of a certain number of hairs that have finished growing. If a sheep is healthy and eats well, but loses some wool, notice how long the process lasts. When lost due to illness, the animal is lethargic and has no appetite.
The next, unnatural reason for sheep hair loss is disease. The main disease contributing to hair loss is psoroptosis or, more simply, sheep scabies. Other diseases for which partial baldness is observed are: chorioptosis (skin scabies), sarcoptosis (scabies scabies). The most frequent causative agent of scabies in sheep is the nocabous parasite - mite (the Latin name is Psoroptes ovis).
The tick settles on the epidermis and is held on the surface with the help of suckers, multiplying and feeding on secretions of the sebaceous glands and skin particles. Sarcoptosis and chorioptosis are similar downstream with psoroptosis. However, the latter disease is the most dangerous of all ticks. Parasites are transmitted by contact of sick animals with healthy ones.
From the moment of contact with the animal’s skin, a male tick forms from an egg in two or a little more than two weeks, and the female in 20 days. Individuals have an oval body and long limbs. If necessary, you can consider the parasite even through a large magnifying glass. During the life cycle, the female Psoroptes ovis produces several thousand larvae. In the summer, the tick lives only 2-3 days, but this is enough for the sheep in the herd to get infected from each other.
The main period of scabies in sheep is winter. Resistance to viruses in animals at this time is low due to the small amount of sun and vitamin D. The main factors that increase the risk of developing scabies are finding a large number of sheep in crowded and inadequate feed composition. Affects the rate of hair loss and what sheep eat. Moisture of wool is another aggravating factor leading to increased symptoms of scabies.
From the moment of infection until the appearance of signs of psoroptes in adult sheep, it takes about 14 days, in lambs - about 8 weeks. The main symptoms of psoroptosis: the lamb loses weight, itches, and the balding patches of skin gradually begin to shine through the hair. Animals may actively scratch the surface in a pen or seek to get a hoof to an itchy patch. If you study the focus of the disease, it can be noted that the wool on it is knocked down and easily pulled out.
The epicenter of the tick-borne focus to the touch is dense, for 8 weeks without treatment the coat of the sick individual can disappear completely. The animal is losing weight rapidly and can die if you do not take action. To determine whether the sheep are sick with psoroptosis, the veterinarian takes a scraping of tissue from different areas on the animal's body. Similar diagnostic measures are used in case of suspicion of other skin diseases.
Reasons why sheep eat wool
Another rather frequent problem in sheep and rams is eating wool, either own or related, in a corral. Why do they eat their wool? The reasons lie in the wrong diet. If a ram eats its wool or the wool of a relative, the reason is a lack of vitamins, microelements, salts. A balanced diet of a sheep is a guarantee of her health and adequate behavior.
Lambs often eat part of their mother's hair if the udder is covered with a woolen cover too much. This symptom goes away with age, however it is necessary to ensure that this does not happen all the time. Another reason why youngsters can eat wool is the bezoar upset. During this disease, lambs have a distorted appetite and symptom of gastroenteritis. In addition, bezoar disease is dangerous stagnation in the intestines and even the death of lambs from volvulus and heart attack.
How to deal with these problems?
Sheep psoroptosis is treated with such drugs as hexachloran and its variations, as well as with hexaline, creolin and special anti-scour baths. Another drug for treatment is diazinon (neocidol). They are treated with the surface of the skin of sheep. In addition, pets are well tolerated by swimming in the Creole Creole (2.5% solution). Bathing schedule - twice, with a break between the first and second swims in 10 days. If the treatment of sheep is carried out in the winter, apply hexachloran-Creolin emulsion.
All drugs are prescribed by a veterinarian, and the treatment is usually carried out by the farmer himself. If the farm is large-scale, complex anti-parasitic treatment can be carried out. In the summer, anti-parasitic bathing and bathing for animals is carried out only after shearing. Similar treatment measures are used for other tick-borne diseases with baldness. In hot weather, with windy, dry weather, when the sheep are on the run for a long time, the parasites on the skin are not able to live longer than 3 days.
The problem of eating wool must be fought by setting off such sheep and normalizing their food. There is a myth that sheep chew wool when they have intestinal parasites. It is not true. The presence or absence of parasites does not affect the eating process. Animals should be given drugs that saturate the body with minerals. In the pens can place special lizuntsy in briquettes containing copper, magnesium, zinc. So pets will regularly have access to minerals.
Bezoar disease is fought by respecting the hygiene of adults and regulating the diet of lambs. Toddlers should get enough milk, and from an early age get used to eating hay and feed concentrates. In addition, iodine solution in the amount of up to ten drops per 40 ml of milk or water is injected into the ration for lamb babies. Healthy animals are watered with this solution in the morning and evening, then take a break for 6 days and repeat the procedure. Sick kids are given a solution twice a day at least a week.