Collect, reproduction and first feeding of Pseudopimelodus mangurus and embryonic developmento of Pimelodus maculatus and Pseudopimelodus mangurus in different temperatures

Autor: Arashiro, Dilberto Ribeiro
Přispěvatelé: Universidade Estadual Paulista (Unesp), Senhorini, José [UNESP]
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Popis: Submitted by Dilberto Ribeiro Arashiro (dilbertoarashiro@hotmail.com) on 2018-04-17T17:26:54Z No. of bitstreams: 1 Dissertação Dilberto correção final.pdf: 2292319 bytes, checksum: 1c4342b38dd84b4404b466b507f88236 (MD5) Rejected by Luciana Pizzani null (luciana@btu.unesp.br), reason: Solicitamos que realize uma nova submissão seguindo as orientações abaixo: problema 1: ficha catalográfica A ficha deve ser incluída no arquivo PDF logo após a folha de rosto do seu trabalho. A submissão deve ser feita em arquivo único em formato PDF. Assim que tiver efetuado a correção submeta o arquivo em PDF novamente. Agradecemos a compreensão. on 2018-04-19T17:53:53Z (GMT) Submitted by Dilberto Ribeiro Arashiro (dilbertoarashiro@hotmail.com) on 2018-04-20T22:08:39Z No. of bitstreams: 1 Dissertação Dilberto correção final.pdf: 2344331 bytes, checksum: 92777b0c77d0ada879bb7016733ead08 (MD5) Rejected by ROSANGELA APARECIDA LOBO null (rosangelalobo@btu.unesp.br), reason: Solicitamos que realize uma nova submissão seguindo as orientações abaixo: problema 1: capa e folha de rosto Na capa consta como local de publicação Pirassununga. É isso mesmo? E na folha de rosto não consta local e data. Assim que tiver efetuado a correção ou correções submeta o arquivo em PDF novamente. Agradecemos a compreensão. on 2018-04-23T17:27:27Z (GMT) Submitted by Dilberto Ribeiro Arashiro (dilbertoarashiro@hotmail.com) on 2018-04-23T17:56:06Z No. of bitstreams: 1 Dissertação Dilberto correção final 23-04.pdf: 2346276 bytes, checksum: 3a206ee10ec99b8b297bb613588a01c6 (MD5) Approved for entry into archive by Sulamita Selma C Colnago null (sulamita@btu.unesp.br) on 2018-04-24T20:17:11Z (GMT) No. of bitstreams: 1 arashiro_dr_me_bot_par.pdf: 1133227 bytes, checksum: 3d66429c9109c4022f0cfa9e56922ce8 (MD5) Made available in DSpace on 2018-04-24T20:17:11Z (GMT). No. of bitstreams: 1 arashiro_dr_me_bot_par.pdf: 1133227 bytes, checksum: 3d66429c9109c4022f0cfa9e56922ce8 (MD5) Previous issue date: 2018-02-26 Outra The aim of this study was to describe a procedure for sampling, reproduction, and first feeding of the Neotropical catfish Pseudopimelodus mangurus. Wild adult P. mangurus specimens were collected in the Mogi Guassu river, and subsequently, were induced to spawn in laboratory conditions. After hand-stripping the females, the average weight of the oocytes was 143 ± 1.66 g, having an average of 718 ± 49.802 oocytes g-1. The diameter of zygotes was about 1226.354 ± 47.719 µm nonhydrated to 1761.256 ± 26.412 µm after hydration. The fertilization rates were 98.00 ± 0.63%, and the hatching rate were 68.94 ± 11.83%. Three days after hatching, the larvae started exogenous feeding. First feedings were made with 6 different treatments, in which the best results arose with sequential feeding with artemia nauplii, Astyanax altiparanae, and Prochilodus lineatus larvae. This condition resulted in a growth rate of 2012.795 ± 44.891 µm by the tenth day of experiment, higher survival rate (65 ± 0.09%), and a lower cannibalism rate 14 ± 0.03% on the tenth day after exogenous feed. The data obtained in this study is important for reproductive biotechniques and mass production of the endangered catfish P. mangurus. AES Tietê/ANEEL (Research & Development Project #0064-1052/2014)
Databáze: OpenAIRE
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