黄喉拟水龟一龄龟生长的研究

Growth of one-year old Asian yellow pond turtle (Mauremys mutica Cantor)

对黄喉拟水龟 (MauremysmuticaCantor)一龄龟生长的研究表明 :在自然温度、人工饲以鱼肉的条件下 ,黄喉拟水龟生长 41 8d ,体重由 9 8g增加到 1 0 0 1 g,平均日增重 0 2 2 g ,成活率为 93 4%。体重、背甲长、背甲宽与日龄呈正相关 ,背甲长与宽呈正相关 ,背甲长、背甲宽与体重同样呈正相关。黄喉拟水龟一龄龟在 50 g以下时生长缓慢 ,50 g以上时生长速度明显加快。在相同环境条件下 ,个体间的生长速度差异较大。一龄龟最大个体可为同龄最小个体的

Growth of one year old Asian yellow pond turtle (\%Mauremys mutica\% Cantor) was studied from August l998 to October l999.When the turtles grew for 418 days in natural temperature under artificial feeding condition in Guangzhou, their average body weight increased from 9.8 g to l00 1 g, the average body weight increased 0 22 g per day, the survival rate was 93 4%. The body weight, carapace length and carapace width were directly proportional to daily age. When the body weight of turtle was under 50 g, the turtle grew slowly. While its weight was over 50 g, it grews fast. Under the same feeding condition and for the same batch of turtles, the individual growth rate was different each other significantly. The maximal body weight of one year old turtle could be 4 times larger than minimal body weight.