乌龟胚胎及仔龟的卵黄代谢  

A STUDY ON THE YOLK METABOLISM OF EMBRYOS AND HATCHLINGS IN Chinemys reevesii

作　　者：由文辉[1] 王培潮[1] 

机构地区：[1]华东师范大学生物系

出　　处：《Zoological Research》1994年第3期45-50,共6页动物学研究（英文）

基　　金：国家自然科学基金

摘　　要：乌龟卵、卵黄、剩余卵黄和仔龟的含水量分别为６８．８７％、６１．４７％、６０．７５％和７６．４３％；干重分别为２．２９１５±０．２１０１ｇ、１．３０７１±０．２９１３ｇ、０．２６８１±０．０２４１ｇ和１．２３０５±０．２９９４ｇ；脂肪含量分别为１８．０３％、３１．７６％、３２．１０％和１９．３０％。卵黄、剩余卵黄和仔龟的热值分别为６．７１ｋｃａｌ／ｇＤＭ、６．７５ｋｃａｌ／ｇＤＭ和４．１０ｋｃａｌ／ｇＤＭ；卵黄能量利用率为７７．５４％。在禁食状况下，仔龟卵黄斑大小、剩余卵黄重量变化与禁食时间呈显著直线负相关，并分别于孵化后的第９ｄ和第１５ｄ消失。The water content of eggs, yolk, posthatching yolk and hatchlings averaged for 68. 87%, 61. 47%, 60. 75% and 76.43% respectively. The dry mass of eggs, yolk,hatchlings and posthatching yolk averaged for 2.2915±0.2101 g,1.3071 ± 0.2913 g,1.2305±0. 2994 g and 0. 2681± 0. 0241 g, respectively.The lipid content of them averaged for 18.03%, 31.76%, 19.30% and 32.10%, respectively. The energy value of yolk,posthatching yolk, hatchlings averaged for 6. 71 kcal/ g DM, 6. 75 kcal/ g DM and 4. 10 kcal/g DM. The utilization coefficient of energy of the yolk was about 77.54%. Under the condition of fasting food,both the fresh mass of posthatching yolk and the size of yolk scar in the hachlings showed the negative linear regression correlation with time.The yolk scar and posthatching yolk disappeared at the 9th and the 15th day after hatching respectively.

关 键 词：乌龟 仔龟 卵黄 代谢 

分 类 号：Q959.63[生物学—动物学]