中华鳖幼鳖的生长模式及身体各部分生化组成  

GROWTH PATTERN AND BIOCHEMICAL COMPOSITION OF DIFFERENT BODY PARTS OF JUVENILE SOFT-SHELLED TURTLE (TRIONYX SINENSIS)

作　　者：牛翠娟[1] 孙儒泳[1] 张廷军[2] 

机构地区：[1]北京师范大学生物系,北京100875 [2]中国科学院动物研究所,北京100080

出　　处：《动物学报》1999年第4期420-426,共7页ACTA ZOOLOGICA SINICA

基　　金：国家自然科学基金!39370121;中科院水生生物研究所淡水生态与生物技术国家重点实验室资助

摘　　要：在实验室条件下，模拟了中华鳖幼鳖背甲宽随年龄变化的生长曲线，观测了幼鳖身体总干重及内脏、脂肪块、骨骼和其它（肌肉和皮肤）各部分子重与背甲宽的相关关系，并测定了上述身体各部分的生化组成。结果发现幼鳖生长曲线呈S型，用逻辑斯缔生长方程可进行很好的拟合，该方程为：Cw＝9．7563／[1＋5．8008exp（-0．2301t）]（r＝0．89，n＝420，P＜0．001）。幼鳖身体总干重及内脏、脂肪块、骨骼和其它各部分干重与背甲宽都有极显著的相关关系。幼鳖脂肪块蛋白、脂肪、总氮、灰分含量及能值分别为：330％，93．96％，053％，0．32％，36．64J／mg。骨骼上述各项值分别为：4503％，1．50％，720％，52．78％，892J／mg。内脏的上述各项均值分别为：55．26％，1841％，9．08％，504％，23．26J／mg。其它部分上述各项均值分别为：83．06％，1．74％，13．36％，6．89％，19．06J／mg。We studied the growth pattern in relation to age in juvenile Soft-shelled turtle Trionyx sinensis. We also examined the correlation between total body dry weightl dry weights of internal organs, fatty block, bones and the other body parts (mainly muscle and skin), and c4rapace width, respectively. Biochemical compositions of different body parts were also investigated. Growth curve of the Soft-shelled turtle was S shaped and was fitted well by the logistic growth model: Cw= 9. 7563/[1 +5. 8008 exp(-0. 2301 t)](r= 0. 89, n= 420, P<0.001). There were clear interrelationships between total body dry weight; dry weights of internal organs, fatty block, bones and the other body parts, and carapace width, respectively. The protein, fat, total nitrogen, ash content and calorie value were 3. 30%, 93. 96%, 0. 53%, 0. 32% and 36. 64 J/mg for fatty block; 45. 03%, 1. 50%, 7. 20%, 52. 78% and 8. 92 J/mg for bones: 55. 26%,18. 41%, 9. 08%, 5. 04% and 23. 26 J/mg for internal organs and 83. 06%, 1. 74%,13. 36%, 6. 89 % and 19. 06 J/mg for the other body parts, respectively.

关 键 词：中华鳖 生长模式 生化组成 幼鳖 

分 类 号：Q959.630.5[生物学—动物学] S966.5[农业科学—水产养殖]