Comparative blood chemistry and histopathology of tilapia infected with Vibrio vulnificus or Streptococcus iniae or exposed to carbon tetrachloride, gentamicin, or copper sulfate

Gross pathology, blood chemistry, lipid and peroxide contents in rainbow trout ( Oncorhynchus mykiss Walbaum) affected by experimental Arcobacter cryaerophilus infection at low water temperature

“…Decreases in serum cholesterol and triglyceride concentrations were reported with natural and experimental infections of A. cryaerophilus in rainbow trout (Aydin et al, 2000;Yildiz and Aydin, 2006) and albino crosses rainbow trout (Bulut and Aydin, 2004), Aeromonas hydrophila infection in carp (Harikrishnan et al, 2003) and Streptococcus iniae infection in tilapia (Chen et al, 2004), as was the case also in our study. A correlation was observed between serum triglyceride and cholesterol concentrations.…”

“…Total protein is used to evaluate protein metabolism (Aydin et al, 2000), and it is a significant indicator of homeostasis (Řehulka and Minařík, 2007). Decreased total serum protein has been reported with A. cryaerophilus infections (Aydin et al, 2000;Bulut and Aydin, 2004;Yildiz and Aydin, 2006), yersiniosis (Altun and Diler, 1999), Serratia liquefaciens infection (Aydin et al, 2001), motile Aeromonas septicaemia (Harikrishnan et al, 2003), streptococcosis (Chen et al, 2004), natural Aeromonas sobria and Aeromonas caviae infections (Řehulka, 2002), and nephritic syndrome (Chen et al, 2002). Research on the function and uses of serum albumin continues to be of great interest because of the dominant position of albumin in the plasma proteins.…”

Hematological and immunological responses of Nile tilapia after polyvalent vaccine administration by different routes

“…Hematological parameters have been considered as important indicators of fish health (Chen et al 2004, Martins et al 2004. Studies demonstrated that the reduction in the number of erythrocytes in the blood and in the hematocrit percentage may be signs of bacterial infection (McNulty et al 2003, Benli & Yildiz 2004, Shoemaker et al 2006b).…”

Haematological changes in Nile tilapia experimentally infected with Enterococcus sp.

“…This study was designed to determine if injection with bacteria isolated from diseased tilapia is responsible for haematological changes. The variation degree on the haematological response is an important tool to fish health diagnosis and may vary according to stressor stimulus, treatment, parasitic or infectious diseases (Silveira-Coffigny et al, 2004;Chen et al, 2004;Martins et al, 2004a;Rehulka, 2002).…”

“…The haematological parameters are an important tool of diagnosis that reveals the state of health of fish (Blaxhall, 1972;Rehulka, 2002;Martins et al, 2004a). For example, decreased red blood cells and hematocrit were found in coho salmon (Oncorhynchus kisutch) infected with V. anguillarum (Harbell et al, 1979); in Asian cichlid fish (Etroplus suratensis) with epizootic ulcerative syndrome (Pathiratne and Rajapakshe, 1998); in rainbow trout (Oncorhynchus mykiss) with ulcerous dermatitis (Rehulka, 1998); in rainbow trout experimentally infected with Aeromonas sobria and A. caviae (Rehulka, 2002); in carp (Cyprinus carpio) experimentally infected with A. hydrophila (Harikrishnan et al, 2003) and in Nile tilapia experimentally infected with Streptococcus iniae (Chen et al, 2004). On the other hand, an increase in the white blood cells and glucose was observed by Haney et al (1992) in chum salmon (Oncorhynchus keta) with erythrocytic necrosis virus.…”