amino acids, essential meaning in Chinese
必需
Examples
- There were only 9 . 35 % fat , 53 . 05 % amino acids , essential amino acids accounting for17 . 49 % in retusa boenensis
脂肪酸在两种贝类中的含量都很丰富，共测出了25种。 - People in the past regard the fish meal as one protein fodder source only , now , they use it in various kinds of fodder of animal , on only use it as the source of protein , energy , essential amino acid , essential fatty acid , but as nutritive matter resource to guarantee the health of animal and the mankind
以前人们把鱼粉仅作为一种蛋白质饲料来源，现在将其用在各种动物的饲料中，不仅作为蛋白质、能量、必需氨基酸、必需脂肪酸来源，而且作为动物和人类确保健康的营养物质来源。 - Gonadal development and fecundity are affected by certain essential dietary nutrients , especially essential amino acids , essential fatty acids , and vitamins etc . thus , during the last two decades , more attention has been paid to the optimal level of different nutrients in broodstock diets . it is well known that protein is a kind of indispensable nutrient because of its important physiological function on body structure and supplying energy to the growth and development of shrimp and crab . protein and amino acids of broodstock diet have been identified as major dietary factors that determine successful reproduction and survival of offspring
而这些问题的解决则要求对中华绒螯蟹生殖过程中的摄食和消化生理机制，亲体性成熟期对各种必需营养素(如必需氨基酸、必需脂肪酸和维生素等)的需求，卵细胞发生过程中营养物质的合成、转运及贮存规律，以及在受精卵、胚胎和后续以内源性营养为主的?状幼体发育阶段对卵黄磷蛋白的消耗和利用模式等环节进行较为深入的研究，在全面系统地了解中华绒螯蟹的生殖营养生理的基础上，探讨亲体生殖营养对卵质、孵化及后续幼体生长发育的影响。