Comparative appraisal of hormonal inductors of artificial spawning of female of african sharptooth catfish
This work is devoted to comparative appraisal of hormonal inductors of development of genital products of african sharptooth catfish female. Effectiveness of the use of fresh or acetonation of hypo physic and two synthetic preparations surfagon and nerestina 7А was compared. These preparations are often used in Russia in reproductive technology during fishfarming. The research object was african sharptooth catfish (Clarias gariepinus). The research was comparative appraisal of influence of hormonal inductors on reproductive characteristics of sharptooth catfish female during stimulation. It was shown that according to effectiveness of influence comparative inductors of gematogenesis had significant differences. Under the influence of inductors of ovogenesis member of dead-ripe female out of number of infected was 80%. Preparation nerestine-7А trial showed that for hormonal stimulation of development of genital products of African sharptooth catfish female in a dose of recommended by preparation producer is incapable. The results of compared research showed that the most effective stimulator of development of genital products of African sharptooth catfish is preparation on the basis of fresh and acetonation of hypophysic. However hypothesis is the most expensive preparation as its obtainment cost speciment's life, out of which it is obtained. Out of two compared synthetic preparations stable effect was peculiar only for surfagon, the use of nerestine-7A didn't give stable results.