Effects of a homeopathic complex on the performance and cortisol levels in Nile tilapia (Oreochromis niloticus)


Autoria(s): Merlini, Luiz Sérgio; Vargas, Lauro; Piau Jr., Ranulfo; Ribeiro, Ricardo Pereira; Merlini, Natalie Bertelis
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

27/05/2014

27/05/2014

20/09/2013

Resumo

Background: Intensive fish farming results in stress adversely effecting the performance of farmed fish. Plasma cortisol is a validated measure of stress in fish. We evaluated the effect of a homeopathic complex on the cortisol level of Nile tilapias (Oreochromis niloticus). Method: 60 animals with approximate average weight of 100 g each at the start of experiment were randomly distributed in six glass fiber water tanks, capacity 1000 liters, with a daily water renewal rate of 20%. They received one of two treatments: 30 animals in control treatment and 30 animals receiving the homeopathic complex Homeopatila 100. On days 1, 30 and 60, all fish were anesthetized and blood was collected by puncture on the caudal vein, to determine the levels of circulating cortisol. Results: At the end of the experiment the fish receiving a homeopathic complex, had significantly lower circulating cortisol level (17.96 ng/mL ± 0.95) than the control group (38.68 ng/mL ± 1.21) (p < 0.05). Conclusions: Cortisol levels were significantly lower in the treated group than control, and the fish were larger in the treated group. © 2013 The Faculty of Homeopathy.

Identificador

http://dx.doi.org/10.1016/j.homp.2013.08.005

Homeopathy.

1475-4916

1476-4245

http://hdl.handle.net/11449/76604

10.1016/j.homp.2013.08.005

WOS:000334393800007

2-s2.0-84884192665

Idioma(s)

eng

Relação

Homeopathy

Direitos

closedAccess

Palavras-Chave #Cortisol #Homeopathy #Nile Tilapia (Oreochromis niloticus) #Stress
Tipo

info:eu-repo/semantics/article