Plasma Protein Electrophoresis of the Atlantic Loggerhead Sea Turtle, Carretta carretta

The objective of this study was to determine reference intervals for plasma protein fractions of normal appearing, wild Atlantic loggerhead sea turtles, Caretta caretta. Blood was collected into heparinized vacutainer tubes from the following groups of turtles: 1) ten adult males; 2) eleven adult females; 3) ten juve- nile males; and 4) ten juvenile females. Plasma was removed and total protein content of each sample was determined using the biuret method. Plasma proteins were separated using gel electrophoresis and scanned using a laser densitometer. Reference ranges for albumin, alpha, beta, and gamma globulins were established for age and gender classes and statistically analyzed. Significant differences were found between beta globu- lins of adult and juveniles and between juvenile males and females. A subgroup of turtles had electrophoretograms with beta-gamma bridging and a single adult male loggerhead had a prealbumin fraction; however, these subgroups of turtles were excluded from statistical analysis.

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