Особенности Гаметогенеза Стерляди В Зарегулированных Условиях Водной Среды

The peculiarities of sterlet gametogenesis at cultivation in the conditions of the recircular systems are considered. As a result of the research of development of reproductive system of sterlet at preserving in an installation with an adjustable thermal regime it was established that at daily average temperature of 21.5 oС the time of full maturing of sexual products makes 19 800-22 252.5 day-degrees, that is reached for 29-32 months of cultivation in recircular system. At a natural thermal regime the necessary quantity of warm can be reached only for 4.0-5.5 years.