(上接《新饲料》第9期24页)4早期发育中碳水化合物的利用在鱼类卵和仔鱼体中碳水化合物含量很低,主要以糖原的形式存在,大约占胚胎或幼体的5%左右[69],在卵细胞发育时期,卵细胞内的糖原库有一个积累的过程,己糖、酮糖、6-脱氧已糖和糖醛酸含量会有不同程度的升高,糖酵解作用较为活跃,而磷酸戊糖途径以及糖异生作用却 (On page 9, page 24). 4 Utilization of early developing carbohydrates The carbohydrate content of fish eggs and larvae is very low, predominantly in the form of glycogen, which accounts for about half of the embryonic or juvenile At around 5% [69], during the development of the egg cell, there is a process of accumulation of glycogen in the egg cell. The content of hexose, ketose, 6-deoxyhexose and uronic acid may be increased to some extent. Solution is more active, while the pentose phosphate pathway as well as gluconeogenesis role