. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. Vol. 8, p. 82 Asiatic Herpelological Research 1999 oo y = + r2 = ⢠Standard value ° Measured value 20 âr~ 30 âi 40 Temperature (°C) Figure 1. Relationship between the daily maximum consumption rate. Rmax (J/g â day) of a turtle with a standard body weight of 40 g (average value of all experimental animals) and water temperature. weight, GR = (W, _ W0)/t, where W, and W0 is the body weight at the end and the beginning of the experiment, respectively, and t
. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. Vol. 8, p. 82 Asiatic Herpelological Research 1999 oo y = + r2 = ⢠Standard value ° Measured value 20 âr~ 30 âi 40 Temperature (°C) Figure 1. Relationship between the daily maximum consumption rate. Rmax (J/g â day) of a turtle with a standard body weight of 40 g (average value of all experimental animals) and water temperature. weight, GR = (W, _ W0)/t, where W, and W0 is the body weight at the end and the beginning of the experiment, respectively, and t is the experimental period. The gross conversion efficiency, CE â named as the percent of energy used for body growth to con- sumed energy â was calculated. All data were analy- sed with SPSS/PC statistical software. Results Analysis of covariance showed that the maximum food consumption of a turtle was greatly affected by body weight and water temperature. Multiple regres- sion analysis showed the following relationships among the daily maximum consumption, Cmax ( day), wet body weight, W (g) and water temperature, T (°C): logCmax = + - " ; (r = , n = 45, P < ). At 30 °C, Cmax ( day) showed the following relation- ship with body weight W (g): Cmax = ; (r = , n = 30). Figure 1 shows the relationship between the daily maximum consumption rate, Rmax (J/g ⢠day) of a tur- tle with a standard body weight of 40 g (average value of all experimental animals) and water temperature. Their relationship could be described as: logRmax = - + - (r = , n = 45). At ± 31 °C, a turtle with a standard body weight of 40 g has the biggest daily food consumption rate of 447 J/g ⢠day. The daily growth rate, GR (g/day) also had a close relationship with body weight and water tem- perature, which could be showed as the following: GR = + - &
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