IMPORTANCE OF SOME BIOLOGICAL ASPECTS TO THE PISCICULTURE OF THE GENUS Leporinus Spix, 1829 — A REVIEW
Abstract
Feeding is omnivorous type. The gonadotrofic hormones existing in commercial forms (Pregnyl) or in carp hypofisis were employed to induce spawning in L. friderici, Lpiau, L obtusidens and L elongatus females. Hormonal dosage were between 0,25 mg/kg and 5.0 mg/kg for females and 0,25 and 3,3 mg/kg for males. L elongatus females were crossed with Schizodon fasciatus males. The Liou for the genus was 12 until 21 cm. L friderici youngs was catched in reservoirs. This denotes the possibility for species of genus spawn in closed environment.
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