At this time the wool firmly tied to the follicles and is not ready to fall out, or plucking. In Scandinavian rock phase telogeneza can last few years. And finally, apparently, any stress – anesthesia, illness, pregnancy or the introduction of certain drugs – changes the majority of follicles in the phase of relaxation. Often after stressful experiences over the past two or three months, until restored to active follicles, there is increased hair loss. Natural color coat color dog is determined by its genes. However, various environmental factors may in some degree of influence on this painting.
The color of the hair may also be influenced by certain nutrients. There is evidence that the lack of cysteine, methionine, arginine, tyrosine and phenylalanine leads to a change in color of the coat. Lack of protein inhibits the growth of hair and worsen its appearance. In 2004, American Society of Nutrition reported that the quality of the wool can influence the lack or imbalance of trace elements. According to their data, if it contains a body zinc is below the optimal number of coat sedeet, and fades from lack of copper wool, dyed in a brown or black.
On coat color may also affect elements such as iron and iodine, and vitamins A, B2 and B6, pantothenic, folic, nicotinic acid and biotin. As a result of too long exposure to sunlight hair can become brittle, and black hair – to become brown or acquire a red tint. After Cutting hair color can significantly efflorescence, and on-site scar marks often appear as white hair, who saved a dog for life.