A description of liver and blood changes in matrinxã (Brycon amazonicus) during induced spawning
| Autor: | Fábio S. Zanuzzo, Elisabeth Criscuolo Urbinati, Gustavo M. Oda, José Augusto Senhorini, Marcio Aquio Hoshiba, Sérgio F. Zaiden |
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| Přispěvatelé: | Universidade Estadual Paulista (Unesp), Centro Nacional de Pesquisa e Conservação de Peixes Continentais (CEPTA/ICMBio), Universidade de Rio Verde - FESURV |
| Rok vydání: | 2018 |
| Předmět: |
Liver damage
0301 basic medicine medicine.medical_treatment Physiology Induced spawning Aquatic Science Biology Stress Muscle hypertrophy Blood cell 03 medical and health sciences chemistry.chemical_compound Aquaculture White blood cell medicine reproductive and urinary physiology Glycogen urogenital system business.industry Immunosuppression 04 agricultural and veterinary sciences Spawn (biology) 030104 developmental biology medicine.anatomical_structure chemistry Brycon amazonicus 040102 fisheries 0401 agriculture forestry and fisheries business Hormonal therapy Hormone |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 0044-8486 |
| DOI: | 10.1016/j.aquaculture.2018.06.013 |
| Popis: | Made available in DSpace on 2018-12-11T17:20:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-10-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) We investigated the effects of induced spawning on liver and blood cell changes in matrinxã breeders, a commercially valuable South American fish that requires hormonal manipulation and stripping to spawn, a trait shared by other important aquaculture species. Little attention has been given to this topic despite the mortality rates commonly reported by fish farmers following this practice. In this study, we show that the overall handling required in induced spawning severely impaired the liver (hypertrophy of the hepatocytes, enlargement of the cell nuclei and reductions of glycogen deposits) which was mainly attributed to hormonal therapy. Additionally, the induced spawning procedure increased the number of red blood cells and decreased the white blood cell and thrombocyte count. These results corroborate the stressful conditions and immunosuppression, which together with the liver damage may explain the reported mortality rates. Finally, our findings outline important approaches for improving induced spawning technique. Universidade Estadual Paulista (UNESP) Centro de Aquicultura da Unesp, Via de Acesso Prof. Paulo Donato Castelane Universidade Estadual Paulista (UNESP), Via de Acesso Prof. Paulo Donato Castelane Centro Nacional de Pesquisa e Conservação de Peixes Continentais (CEPTA/ICMBio), Rodovia Euberto Pereira de Godoy, km 6,5 Universidade de Rio Verde - FESURV, Campus Universitário, s/n. Universidade Estadual Paulista (UNESP) Centro de Aquicultura da Unesp, Via de Acesso Prof. Paulo Donato Castelane Universidade Estadual Paulista (UNESP), Via de Acesso Prof. Paulo Donato Castelane |
| Databáze: | OpenAIRE |
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