Oocyte quality of tambaqui (Colossoma macropomum) during the reproductive season
| Autor: | JM. Galo, RP. Ribeiro, DP. Streit-Junior, DM. Albuquerque, DC. Fornari, CFC. Roma, LRJ. Guerreiro |
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| Jazyk: | angličtina |
| Předmět: | |
| Zdroj: | Brazilian Journal of Biology, Vol 75, Iss 2, Pp 279-284 |
| Druh dokumentu: | article |
| ISSN: | 1678-4375 1519-6984 |
| DOI: | 10.1590/1519-6984.10113 |
| Popis: | The study aimed to analyze the Colossoma macropomum reproductive behavior and quality of the female gametes throughout the reproductive season. The experiment was carried out in Pimenta Bueno - Rondônia State (Northern Brazil) during the reproductive season (2010-2011) using 36 females. Each sampling was performed on a 15 ± 5 days interval. Female gametes were collected by stripping and the following analyses were performed: weight of oocytes released (g); productivity index, fertilization and hatching rate. During the sampling period was verified effect (p < 0.05) of collecting time into the season for oocytes weight, productivity index and fertilization rate. Although the period 3 (December) did not differ significantly from other periods, it showed better parameters for the quality of C. macropomum oocytes. |
| Databáze: | Directory of Open Access Journals |
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