マドジョウの養殖に関する2, 3の実験
1964 年 30 巻 2 号 p. 137-140
詳細
1964 年 30 巻 2 号 p. 137-140
In order to induce artificially the spawning of the mud loach (Misgurnus anguillicaudatus), the mature females were injected with Gonatropin, Serotropin, Ovahormon, Synahorin and Prehormon.
By the injection of 100 unit or more of Gonatropin per one female, the fish spawned within 15 hours after the injection in the rate of 57 to 73 per cent. The hatchability of the eggs thus obtained was 60 to 78 per cent. None of the females, however, was spawned by the other kinds of hormone.
Six kinds of food were used to determine the useful one for rearing the fry. So that, it was found that “Nippai” powdered food for the carp fry was the most effective material for growth of the loach fry.
