The gestation is a time of intense feeding of fish. It is usually observed immediately after spawning. In pike, the rush can be before spawning, immediately after spawning, in mid-summer and in the fall. The fever is not constant, has strengthening and weakening not only during the year, but also during the day. In different reservoirs, the timing of intensive feeding of fish is different. Fishermen use the time of the feeding period for fishing as much as possible, as the strongest fish bite occurs.