Normal ranges of some blood chemistry parameters in adult farmed Atlantic salmon, Salmo salar

Abstract

Blood samples from healthy adult Atlantic salmon fed an optimal diet in net sea pens were collected at intervals from October to May. Haematological determinations and biochemical serum analyses were carried out on 20 fish in each of seven samples. The ranges of haematological values for sample means were: haematocrit 4449%, haemoglobin 8.9-10-4 g 100 ml-', red blood cell count 0.85-1.10 x lo'* I-', MCV 44-553 x 10-151, MCH 94-106 x g, MCHC 19.4-21.7g IOOml-' and leucocrit 0.43-0.96%. The ranges of enzyme activities in serum, for sample means, were: alkaline phosphatase 647-988 U 1-', aspartate aminotransferase 202-351 U I -' and alanine aminotransferase 4-8 U I -I . The ranges of the other parameters analyzed in serum were: total protein 41,656.6g I-', albumin 18.3-24.3 g I-', albumin/total protein ratio 39.34.0%, creatinine 26-46 pmol, triglycerides 2334.98 mmol and cholesterol 9.3-12-8 mmol. These values are considered to be the normal ranges in healthy fish. Variations due to seasonal changes, and the clinical significance of the selected parameters, are discussed. Data showing the reproducibility of the biochemical analyses in serum are presented.

Energy dilution with α-cellulose in diets for Atlantic cod (Gadus morhua L.) juveniles — Effects on growth, feed intake, liver size and digestibility of nutrients

“…Haematocrit (Hct), red blood cell count (RBC) and haemoglobin (Hb) are haematological parameters that are important when evaluating fish health (Sandnes et al, 1986;1988;Waagbø, 2001 (Sandnes et al, 1988;Waagbø, 1999) and maturation. Therefore it may be hard to control if haematological parameters are normal or not.…”

“…Blood chemical analyses (Hct, RBC and Hb) was performed according to Sandnes et al (1988). Hct was analysed at sampling as explained earlier, and Hb and RBC one day after sampling.…”

“…Low ASAT and ALAT indicate that there were no organ damage, because ASAT and ALAT normally occur in low levels in blood plasma (Racicot et al, 1975;Sandnes et al, 1988) and determination of these enzymes, in high amounts in blood plasma, is efficient in diagnosis of liver and kidney diseases in fish. Plasma glucose was within previous reported normal cod ranges (Hemre et al, 2002;Rosenlund et al, 2004).…”

The effects of diet composition and ration on biotransformation enzymes and stress parameters in rainbow trout, Oncorhynchus mykiss

“…Analysis of hematological parameters are useful in the detection of metabolic disturbances, nutritional disturbances and disease processes (Spannhof et al, 1979;Sandnes et al, 1988); however, research directly relating hematocrit, leucocrit and plasma osmolality to specific dietary change is scarce. In this study, dietary treatments…”

Recherches sur l'état physiologique des poissons de la retenue de Pareloup : données relatives à cinq années d'étude

“…Chez les poissons, I'hématocrite semble avoir des valeurs relativement constantes qui ne paraissent varier ni en fonction de la température (Parent et al, 1976 ; Lane, 1979 ;Sandnes et al, 1988) ou de la photopériode (Lane, 1979 ;Sandnes et al, 1988) ni en fonction du régime alimentaire, notamment de sa richesse en protéines (Zeitoun et al, 1974 ;Hemre et al, 1991 ;Plisetskaya et al, 1991). Toutefois, des modifications de ce paramètre ont été signalées lors d'un état de stress (Fletcher, 1975;Van Vuren et Hattingh, 1978;Witters et al, 1990;Wells et Weber, 1991).…”