Haematological and serum biochemical profile of the upside-down catfish, Synodontis membranacea Geoffroy Saint Hilaire from Jebba Lake, Nigeria

The haematology of six species of native catfish from northern Australia

“…However, both PAS-GLs and basophils were present in the peripheral blood of N. ater in this study, and the concurrent presence of metachromatic basophils and PAS-GLs has been reported in other teleost species, such as S. lima (Bianchi et al 2014). This evidence suggests that PAS-GLs may not be the evolutionary precursor of basophils, as suggested by Barber and Westermann (1978b) ater were similar to those described in other Siluriformes such as I. punctatus (Williams and Warner 1976;Tavares-Dias and de Moraes 2007) and moustache catfish (Synodontis membranacea) (Owolabi 2011). Metachromatic staining of muccopoysaccharide granules in toluidine blue occurs in mammalian basophils (Cooper and Cruickshank 1966), and the use of 0.5% alkaline (pH 9) toluidine blue, as used in this study, has revealed metchromatic granules within basophils in several fish species (Tavares-Dias 2006b).…”

“…Eosinophils have been reported in several catfish species including H. littorale (Tavares-Dias and Barcellos 2005), S. membranacea (Owolabi 2011), and Mekong giant catfish (Pangasionodon gigas) (Phoonsamran et al 2008). Williams and Warner (1976) also reported eosinophils in I. punctatus on Romanowsky-stained smears; however, Tavares-Dias and de Moraes (2007) and Zinkl et al (1991) found no eosinophils using cytochemical and Romanowsky stains in the same species.…”

HAEMATOLOGICAL AND BIOCHEMICAL INDICES OF Sarotherodon melanotheron FROM A SLUM NEIGHBOURHOOD ENVIRONMENT

“…Landman et al, (2006) also observed changes in blood profiles of Cyprinus carpio and attributed it to the effect of effluents from paper mill industries. In the present study, the lymphocytes, mean value 79.67 ±1.49, were observed to be numerous than any other differential cells, this is typical of most fishes (Owolabi, 2011). The abundance of neutrophils and monophils in this fish species is also typical of most fishes (Owolabi, 2011).…”

“…In the present study, the lymphocytes, mean value 79.67 ±1.49, were observed to be numerous than any other differential cells, this is typical of most fishes (Owolabi, 2011). The abundance of neutrophils and monophils in this fish species is also typical of most fishes (Owolabi, 2011). No eosinophils and basophils were recorded in this study; this is also typical of most fish species and could be attributed to the influence of the heavy metals especially cadmium.…”

“…Biochemical or liver function test also helps to determine the health status of fish as well as that of its environment. Biochemical constituents and some enzymes in the blood are used as biomarkers as they are very sensitive, less variable and conserved between species (Owolabi, 2011). Changes in the activities of these enzymes could be an indication of tissue injury, environmental stress or diseased condition (Kori-Siakpere et al, 2010).…”