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Egyptian Journal of Histology [The]. 2011; 34 (2): 270-280
em Inglês | IMEMR | ID: emr-135738

RESUMO

Understanding the physiological picture of fish during the reproductive cycle, seawater acclimation, and induced spawning is of essential value to know the possible reasons of preoviposition mortality and to develop successful hatchery technology. Determination of the effect of different stress factors on hydro-mineral balance as well as changes in somatolactin [SL] immunoreactive cells in mature Liza ramada females. Water chemistry and the different plasma ion levels were measured. Immunocytochemical staining for the sections of the pituitary gland was performed to describe the activity of SL immunoreactive cells. The plasma levels of PO[3-4], Na[+], K[+], Ca[2+], and Mg[2+] showed a slight increase during transportation without anesthesia. The concentrations of these minerals returned to the initial levels by using clove oil [5 mg/I] as anesthetic. However, their levels decreased during seawater acclimation and gradually increased with confinement to reach the initial values. Furthermore, the levels of PO[3-4], Na[+], K[+], Ca[2+], and Mg[2+] were significantly [P

Assuntos
Peixes , Água do Mar/química , Estresse Psicológico/fisiologia , Anestesia , Óleo de Cravo , Proteínas de Peixes , Glicoproteínas , Feminino
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