The influence of eyestalk ablation on the reproduction of the freshwater Macrobrachium acanthurus shrimp in captivity - doi: 10.4025/actascibiolsci.v32i3.3911
Autor: | Cunha, Cristiane Honorato, Oshiro, Lídia Miyako Yoshii |
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Jazyk: | angličtina |
Rok vydání: | 2010 |
Předmět: | |
Zdroj: | Acta Scientiarum. Biological Sciences; Vol 32 No 3 (2010); 217-221 Acta Scientiarum. Biological Sciences; v. 32 n. 3 (2010); 217-221 Acta Scientiarum Biological Sciences Universidade Estadual de Maringá (UEM) instacron:UEM |
ISSN: | 1807-863X 1679-9283 |
Popis: | Macrobrachium acanthurus is distributed along the Brazilian coastal rivers and shows potential for aquaculture. This study was carried out to provide information on the reproduction of M. acanthurus in captivity and the influence of unilateral eyestalk ablation. A total of 48 females and 24 males were captured in the Sahy river in Mangaratiba, Rio de Janeiro State. The animals were distributed into twelve 20-liter aquariums, each with two males and four females. Two females in each aquarium were ablated. Every day the occurrence of ovigerous females was checked in each aquarium. The U test (Mann-Whitney) showed a significant difference among laying intervals and the number of hatchings between ablated and non ablated females. Macrobrachium acanthurus is distributed along the Brazilian coastal rivers and shows potential for aquaculture. This study was carried out to provide information on the reproduction of M. acanthurus in captivity and the influence of unilateral eyestalk ablation. A total of 48 females and 24 males were captured in the Sahy river in Mangaratiba, Rio de Janeiro State. The animals were distributed into twelve 20-liter aquariums, each with two males and four females. Two females in each aquarium were ablated. Every day the occurrence of ovigerous females was checked in each aquarium. The U test (Mann-Whitney) showed a significant difference among laying intervals and the number of hatchings between ablated and non ablated females. |
Databáze: | OpenAIRE |
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