Caracterização macroscópica das gônadas durante a reprodução induzida em cativeiro do surubim-do-paraíba

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Abstract

The objective of this work was to describe the morphology of the gonads of surubim-do-paraíba (F1) during induced breeding in captivity. Thirty females were induced to reproduction using carp pituitary extract and human chorionic gonadotropin. Twenty-eight females responded to the induction, releasing 238.80 g of oocytes (fertilization rate: 24.337plusmn;8.35%). After stripping of gametes, the animals were euthanized for the morphological analysis of the gonads. Testicles did not present morphological alteration after induction. Among ovaries, 63.31% showed malformation (uneven, not uniform development or "narrowing"), and the number of released oocytes was below the obtained in wild broodstock of this species.

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Honji, R. M., Caneppele, D., & Moreira, R. G. (2013). Caracterização macroscópica das gônadas durante a reprodução induzida em cativeiro do surubim-do-paraíba. Pesquisa Agropecuaria Brasileira, 48(8), 1110–1114. https://doi.org/10.1590/S0100-204X2013000800042

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