Effect of temperature on
lipids, proteins, and carbohydrates levels during development from egg
extrusion to juvenile stage of Cherax quadricarinatus (Decapoda:
Parastacidae)
M. García-Guerrero, H. Villarreal, I.S. Racotta-2003
Comparative Biochemistry and Physiology – Part A: Molecular &
Integrative Physiology, 135(1): 147-154
Abstract:
The influence of temperature on biochemical
composition, survival and duration of development of Cherax
quadricarinatus from egg extrusion to juvenile was analyzed. Berried
females were individually subjected to each of 22, 25, 28 and 31 °C (n=5
per temperature). Egg samples were obtained every 3 days from egg extrusion
to juvenile stage for biochemical analysis. Duration of development and
survival decreased with increasing temperature. At 22 and 25 °C half of the
initial lipid content was consumed during development. At 28 and 31 °C, 80%
of the initial amount of lipids was consumed. For proteins, depletion rate
was significantly lower at 25 °C (36% of the initial amount) than at 22, 28
and 31 °C (61–65% of the initial amount). For carbohydrates, a
significant consumption was observed only at 22 °C. Total energy
consumption was lower at 22 and 25 °C than at 28 and 31 °C. We conclude
that 22–25 °C is the optimal temperature range for C. quadricarinatus
egg incubation, although 25 °C might be better in terms of
development duration in terms of survival, energy cost and protein
consumption.