NDLI: Innate humoral immune parameters in Tilapia zillii under acute stress by low temperature and crowding

Content Provider	Springer Nature Link
Author	Chebaani, Nadjoua Guardiola, Francisco A. Sihem, Merbah Nabil, Adjajdi Oumouna, Mustapha Meseguer, José Esteban, María A. Cuesta, Alberto
Copyright Year	2013
Abstract	Redbelly tilapia (Tilapia zillii; Gervais, 1848) is one of the most valuable freshwater species in North Africa representing an important part of the continental production, especially in brackish lakes. In Algeria, T. zillii is distributed in several lakes and tributaries of some rivers in the south. Though some attempts are in progress to culture this species, many investigations covering its biology and farm management are still needed. In this sense, this is the first study attempting to evaluate some of the T. zillii immune parameters and valuable data to assess their health and well-being status. Thus, we have determined the levels of serum peroxidases as well as the alternative complement, antiprotease and bactericidal activities. Furthermore, we have also evaluated the potential impact of two acute stress factors, commonly found in fish farms, in these parameters. Although it was assessed that fish exposed to low temperatures or crowding were stressed, as indicated by their increased serum levels of cortisol and glucose, both acute stressors failed to significantly affect serum peroxidases as well as antiprotease and complement activities. However, the bactericidal activity was reduced in general but only in those exposed to crowding reached statistical significance. Further studies are needed to characterise the immune response in T. zillii as well as the effects that farming stresses may produce.
Starting Page	797
Ending Page	804
Page Count	8
File Format	PDF
ISSN	09201742
Journal	Fish Physiology and Biochemistry
Volume Number	40
Issue Number	3
e-ISSN	15735168
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-11-09
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Redbelly tilapia (Tilapia zilli) Humoral immunity Stress Cortisol Fish Freshwater & Marine Ecology Animal Physiology Animal Anatomy / Morphology / Histology Animal Biochemistry Zoology
Content Type	Text
Resource Type	Article
Subject	Physiology Medicine Biochemistry Aquatic Science

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