Effects of organic selenium on thrombocytes and parasite infestation in nile tilapia juveniles

International Aquatic Research

مقاله 5، دوره 12، شماره 2، شهریور 2020، صفحه 127-132   

نوع مقاله: Short communication

شناسه دیجیتال (DOI): 10.22034/iar(20).2020.1894161.1017

نویسندگان

Rodrigo Fujimoto¹؛ Gabriela R. Gomes²؛ Roberson Sakabe³؛ Claudinei de Cruz⁴؛ Natalino Costa Sousa⁵؛ Márcia Valéria Silva Couto⁵؛ Peterson Emmanuel Guimarães Paixão^{* 6}؛ Juliana Meneses⁶؛ Paulo Carneiro¹؛ Alexandre Maria¹

¹Embrapa Tabuleiros Costeiros, Avenida Beira Mar, 3250, Caixa Postal 44, CEP 49.025-040 Aracaju, SE, Brasil

²VB Alimentos Industria e Comércio Ltda, Rua jurema, 692, Novo Vale, CEP 78.820-000, Jaciara, MT, Brasil

³Universidade Federal Fluminense, Faculdade de Veterinária, Departamento de Zootecnia e Desenvolvimento Agrossocioambiental Sustentável. Rua Vital Brasil Filho, 64, Vital Brasil, CEP 24.230-340 Niterói, RJ, Brasil

⁴Universidade Estadual Paulista, Faculdade de Ciências Agrária e Veterinárias de Jaboticabal, Departamento de Fitossanidade, Via de Acesso Paulo Donato Castellane, s/no, Nova Aparecida, CEP 14.870-000 Jaboticabal, SP, Brasil

⁵Universidade Federal do Pará, Rua Augusto Corrêa, n 1, Guamá, CEP 66075-110. Belém-PA-Brasil

⁶Universidade Tiradentes, Av. Murilo Dantas, 300, Farolândia, CEP 49032-490. Aracaju – SE. Brasil

چکیده

The knowledge of fish mineral requirements, such as selenium, is important to promote the growth and health status for fish in captivity, but excess or deficiency must be avoided. Therefore, this study evaluated the growth performance, hematology and the parasite load of Nile tilapia (Oreochromis niloticus) supplemented with organic selenium (0.0; 0.25; 0.5; 1.0 and 1.5 mg/Kg). The increased levels of selenium did not affect significantly (p<0.05) the growth performance of tilapia. However, the increases of thrombocytes and parasite load are proportional to the increases of selenium levels. Unlike expected, supplemented diets with selenium did not benefit growth performance and supplementation of 1.5 mg/kg caused deleterious effects on the health of tilapia.

کلیدواژه‌ها

Oreochromis niloticus؛ Micronutrients؛ Nutrition؛ Health؛ Selenomethionine