Abstract
The effects on reproduction of African catfish (Clarias gariepinus Burchell 1822) were investigated in three experiments conducted under controlled conditions, carp pituitary (at the dose of 4 mg/kg body weight) or Ovopel – a preparation that contains a mammalian GnRH analogue D-Ala6,Pro9NEt-mGnRH (1 pellet/kg body weight) and dopamine receptor antagonist metoclopramide (10 mg/kg) being used as ovulation stimulators. The application of Ovopel induced the statistically significantly (P ≤ 0.01) higher weight of eggs per kg female body weight and the statistically significantly (P ≤ 0.05) higher quality of eggs after 24 h incubation in comparison with the effects of hypophysation. No effect of the experiment on the weight or quality of obtained eggs was determined while the interaction between the experiment and the ovulation stimulator was statistically significant (P ≤ 0.05) with respect to the percentage of egg fertilization. Statistically significant (P ≤ 0.05) correlation was found between the percentage of egg fertilization and that of living embryos, the determined correlation coefficient being higher after the application of Ovopel than after the carp pituitary homogenate.
Publisher
Czech Academy of Agricultural Sciences
Subject
Animal Science and Zoology
Cited by
11 articles.
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1. Evaluation of the efficacy of acetone-dried common carp pituitary during induced breeding of African catfish (Clarias gariepinus) after an extremely long-term storage;Aquaculture Reports;2023-12
2. Chitosan- hypothalamic hormonal analogue nanoconjugates enhanced the reproductive performance in Indian major carp, Labeo rohita;Frontiers in Marine Science;2023-11-23
3. Comparative efficacy of Ovaprim and hMG (menotropin) to induce breeding in African catfish (Clarias gariepinus);Fish Physiology and Biochemistry;2021-08-18
4. Reproduction effectiveness of carp (Cyprinus carpio L.) from the Hungarian W breeding line after stimulating ovulation with spawning inducing agents of natural (CPH, hCG, PMSG) and/or synthetic origin (Ovopel, Dagin, Ovaprim, mGnRH-a);AQUACULTURE;2021
5. Reproduction effectiveness of carp (Cyprinus carpio L.) from the Hungarian W breeding line after stimulating ovulation with spawning inducing agents of natural (CPH, hCG, PMSG) and/or synthetic origin (Ovopel, Dagin, Ovaprim, mGnRH-a);Aquaculture;2021-02