Process of replacement of external covers at animals is called a molt. Natural process of updating of a cuticle, wool, scales or feathers, it is possible to consider under optimal conditions of keeping of animals. The molt of animals is divided into three main: seasonal, age, constant.
Instruction
1. Zoologists watch a molt of animals not one decade. By a research way it is established that time and quality of a molt are influenced by various factors. One of them temperature. Biological process of a molt at animals is started in the nature both at low, and at high temperatures. The animals in the nature or who are contained in open-air cages fade "as on hours". Such molts are called autumn and spring.
2. The double molt is transferred by generally fur animals, proteins, water rats, gophers tonkopaly, minks, hares, etc. Moles fade 3 times a year. But not all animals change the cover 2-3 times a year. The animals entering hibernation fade only 1 time in a year. At the individuals who are in hibernation of 7-9 months, the new cover of hair during this period is not formed. They transfer 1 long molt which lasts since spring until bedding in hibernation.
3. The pets who are contained in heat, periodically walking on the street, staying some time on windowsills constantly receive temperature difference. Their molt loses seasonality, becomes constant, pathological. Besides, such type of a molt can come at the wrong diet of animals, a stress and other circumstances. Loss of indumentum at the wrong diet can take place on a miscellaneous, with smaller or bigger loss of a cover. At a bad forage the loss of wool happens generally on hips and a back of an animal.
4. The age molt, is considerable variability of fur during growth of animals. And, at young individuals of change occur more actively. Time of an age molt for each animal depends on a season of the birth of the kid. The first age molt comes during the period of 3-7 months since the birth of an animal. Cubs at the end of breastfeeding change an initial fluffy cover. Secondary wool differs from the first in structure, coloring. The age molt is characteristic of sheep, a white fox, seals and other animals. Most often the first down on animals is softer, more gentle also than barkhatisty. Ostevy hair at kids thin, practically do not differ from down on thickness and length. Such cover is often called pukhlyavy. The color of the first indumentum is also other than the subsequent. Most often the first is more dark, the exception is made by newborn seals.
5. Wool, swelled, can fade at females in the period of a sexual cycle or after the patrimonial period of an animal. The molt usually begins in 5-10 weeks, after appearance of kids. Wool at such generally falls down molts from a stomach, a breast and sides. Such molt is called sexual, it as well as other molts, depends on a condition of hormones in an animal organism.