Yolk utilization in the egg of the olive ridley Lepidochelys olivacea

Silas, E G and Vijayakumaran, M and Rajagopalan, M (1984) Yolk utilization in the egg of the olive ridley Lepidochelys olivacea. CMFRI Bulletin, 35 . pp. 22-33.

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Abstract

Yolk utilization has been studied in the eggs of olive ridley Lepidochelys olivacea from laying to pipping (hatching), pipping to emergence and in hatchlings. Chemical and calorimetric changes in the whole egg,in yolk,in the embryo and in the post emergence hatchling have been discussed. Cumulative conversion efficiencies of the whole egg and of yolk and net utilization effidiency of yolk have been determined using chemical and caloric values. Cumulative conversion efficiency of whole egg and of yolk at pipping in terms of energy are 71.97 % and 30.42% respectively. At the time of emergence these values further reduced to 66.97 % and 26.17% respectively. Based on the utilization of yolk energy, embryonic development in L. olivacea has been divided into three phases.

Item Type:Article
Uncontrolled Keywords:olive ridlely; Lepidochelys olivacea
Subjects:Marine turtle
Divisions:CMFRI-Cochin > Fishery Environment
ID Code:1066
Deposited By:Edwin Joseph
Deposited On:14 Jun 2010 15:39
Last Modified:14 Jun 2010 15:39

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