Physiological and growth responses of tambaqui (Colossoma macropomum) fed Croton conduplicatus essential oil and challenged with Aeromonas hydrophila.

Autor: Pereira GA; Universidade Federal do Vale do São Francisco (UNIVASF), Campus Ciências Agrárias, Km 12, BR 407, Lote 543, s/n, Projeto de Irrigação Senador Nilo Coelho, Petrolina, CEP 56300-000, PE, Brazil., Copatti CE; Programa de Pós-Graduação em Zootecnia, Universidade Federal da Bahia (UFBA), Av. Milton Santos, 500, Ondina, Salvador, CEP 40170-110, BA, Brazil. carloseduardocopatti@yahoo.com.br., Rocha ADS; Programa de Pós-Graduação em Zootecnia, Universidade Federal da Bahia (UFBA), Av. Milton Santos, 500, Ondina, Salvador, CEP 40170-110, BA, Brazil., Marchão RS; Universidade Federal do Vale do São Francisco (UNIVASF), Campus Ciências Agrárias, Km 12, BR 407, Lote 543, s/n, Projeto de Irrigação Senador Nilo Coelho, Petrolina, CEP 56300-000, PE, Brazil., de Santana AS; Universidade Federal do Vale do São Francisco (UNIVASF), Campus Ciências Agrárias, Km 12, BR 407, Lote 543, s/n, Projeto de Irrigação Senador Nilo Coelho, Petrolina, CEP 56300-000, PE, Brazil., Rocha DR; Universidade Federal do Vale do São Francisco (UNIVASF), Campus Ciências Agrárias, Km 12, BR 407, Lote 543, s/n, Projeto de Irrigação Senador Nilo Coelho, Petrolina, CEP 56300-000, PE, Brazil., da Costa MM; Universidade Federal do Vale do São Francisco (UNIVASF), Campus Ciências Agrárias, Km 12, BR 407, Lote 543, s/n, Projeto de Irrigação Senador Nilo Coelho, Petrolina, CEP 56300-000, PE, Brazil., Almeida JRGDS; Núcleo de Estudos e Pesquisas de Plantas Medicinais, Universidade Federal do Vale do São Francisco (UNIVASF), Av. José de Sá Maniçoba, s/n - Centro, Petrolina, CEP 56304-205, PE, Brazil., de Figueiredo RACR; Companhia de Desenvolvimento dos Vales do São Francisco e do Parnaíba (CODEVASF), Rua Presidente Dutra, 160, Centro, Petrolina, CEP 56304-914, PE, Brazil., de Souza AM; Universidade Federal do Vale do São Francisco (UNIVASF), Campus Ciências Agrárias, Km 12, BR 407, Lote 543, s/n, Projeto de Irrigação Senador Nilo Coelho, Petrolina, CEP 56300-000, PE, Brazil., Melo JFB; Universidade Federal do Vale do São Francisco (UNIVASF), Campus Ciências Agrárias, Km 12, BR 407, Lote 543, s/n, Projeto de Irrigação Senador Nilo Coelho, Petrolina, CEP 56300-000, PE, Brazil.
Jazyk: angličtina
Zdroj: Veterinary research communications [Vet Res Commun] 2024 Dec 28; Vol. 49 (1), pp. 58. Date of Electronic Publication: 2024 Dec 28.
DOI: 10.1007/s11259-024-10631-6
Abstrakt: This study aimed to assess the effect of Croton conduplicatus essential oil (CCEO) in diets for tambaqui (Colossoma macropomum) (14.50 ± 0.07 g), a native Amazonian fish. Five diets (29.25% digestible protein; 3063.14 kcal digestible energy) were prepared: 0.00 (control), 0.25, 0.50, 1.00, and 1.50 mL CCEO kg diet -1 and evaluated for 60 days, followed by 14 additional days of bacterial infection with Aeromonas hydrophila. Fish were fed until apparent satiation four times daily and maintained in 1,000-L tanks (n = 15 fish per tank; 5 tanks per treatment; randomized design) in a recirculatory aquaculture system. The main chemical compounds of CCEO were the monoterpenes 1,8-Cineole (20.72%), p-Cymene (12.45%), and α-Phellandrene (11.46%). Animals had no mortality, even after the bacterial infection, and CCEO did not influence the number of lesions in infected fish. According to quadratic regression analysis, feeding fish diets containing 0.85 mL CCEO kg -1 increased their growth parameters and feed intake. The feed conversion ratio was reduced with 0.25 mL CCEO kg diet -1 . Before infection, the regression showed that the 1.00 mL CCEO kg diet -1 reduced erythrocytes and increased hemoglobin, hematimetric indices, plasma glucose, total cholesterol, albumin levels, and plasma and liver alanine aminotransferase (ALT) activities. After bacterial infection, quadratic regression analysis showed that the control group had the highest plasma glucose and albumin values, and the treatment 0.50 mL CCEO kg diet -1 increased mean corpuscular volume values and decreased plasma ALT activity. In conclusion, 0.85 mL CCEO kg diet -1 is recommended for tambaqui because it can potentially improve growth performance and hemato-biochemical responses; however, CCEO did not influence responses against aeromoniasis.
Competing Interests: Declarations. Ethics approval: The study was conducted under the rules of conduct for using animals in teaching and research and current legislation. The experiments were aligned with the procedures approved by the Ethical Committee on the Use of Animals of the Escola de Medicina Veterinária e Zootecnia of the UNIVASF (protocol 0002/300322). In addition, it was carried out according to the principles adopted by the Brazilian College of Animal Experimentation (COBEA). Consent for publication: Herewith, we give our consent to publish this manuscript. Competing interests: The authors declare no competing interests.
(© 2024. The Author(s), under exclusive licence to Springer Nature B.V.)
Databáze: MEDLINE
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