Indexing serum biochemical attributes of Lutjanus argentimaculatus (Forsskal, 1775) to instrument in health assessment
2020
Reshma, Kalarical Janardhanan | Sumithra, Thangalazhy G. | Vishnu, Balachandran | Jyothi, Raju | Ratheesh Kumar, Raveendran | Pootholathil, Sayooj | Sanil, Nandiath K.
The present study was aimed to establish reference data for nine serum biochemical attributes (glucose, protein, albumin, globulin, albumin/globulin ratio, cholesterol, triglycerides, serum glutamate oxaloacetate transaminase [SGOT] and serum glutamate pyruvate transaminase [SGPT]) of a supreme aquaculture candidate, namely Lutjanus argentimaculatus. Further, the influence of ecotype (cage–wild), condition index and gender on biochemical attributes was evaluated. The results have shown that gender and condition index had no significant effect in the studied age group, whereas ecotype had a significant role, except on serum glucose levels, suggesting the prime importance of estimating ecotype‐specific reference intervals for interpreting fish health. Intra‐ecotype variability of serum biochemical attributes, namely serum protein, globulin, cholesterol and triglycerides, was less, suggesting the possibility of using these parameters as health indices within a specific ecotype. Consistency in terms of the least intra‐ecotype variability coupled with PCA results points serum protein as the best ecotype‐specific health index among the different parameters studied. Altogether, the results of the present study provide thought‐provoking insights on serum biochemistry of L. argentimaculatus as a platform for the health management of this supreme aquaculture candidate.
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