10. Vitamin A-β-Carotene Relationship in Tissues of Male Freshwater Crayfish
(Astacus leptodactylus Eschscholtz, 1823) in Keban Dam Lake (Elazıg)

*Ozden BARIM-OZ  **Mine ERISIR
 
*Aquaculture Faculty, Fırat University, Elazıg, Turkey
**Veterinary Faculty, Fırat University, Elazıg, Turkey
*e-mail: obarimoz@hotmail.com.tr
**e-mail: mineerisir@yahoo.com.tr

ABSTRACT

In this study, relationship between vitamin A and β-carotene in hepatopancreas, gonad (testis) and muscle of male freshwater crayfish (Astacus leptodactylus) was investigated. The amount of vitamin A was found 3.44±0.47 mg/g tissue, in hepatopancreas, 3.73±0.21 mg/g tissue in testis and 1.33±0.16 mg/g tissue in muscle. The amount of β-carotene was observed 4.39±0.23 mg/g tissue, 2.43±0.12 mg/g tissue, 2.33±0.07 mg/g tissue, in hepatopancreas, testis and muscle respectively. As a conclusion, this study was revealed that the amount of vitamin A in testis (3.73±0.21 mg/g tissue), and of β-carotene in hepatopancreas (4.39±0.23 mg/g tissue) and muscle (2.33±0.07 mg/g tissue) tissues were statistically significant higher composition with other tissues.

Key words: Astacus leptodactylus, Vitamin A, β-carotene, Hepatopancreas, Muscle, Testis

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