Artificial feed : the mother breeds feed is one of optimal and natural measures that prevent breast cancer , lactation can make give birth to the danger of breast cancer to reduce 20 to 30 人工喂养：母乳喂养是预防乳腺癌的最佳天然手段之一，哺乳可使生乳腺癌的危险减少20至30 。
During the process of manufacturing artificial feed the ingredients have to be fresh and the formula has to meet the minimum requirements of the larvae . so we must consider the following items what s all in one 在制造维仁活力素的过程中，制程中注意到微量成份的均匀度，配方考虑到某种营养的最低需求量因此维仁活力素特别考虑到下列十点：
Also contains microorganisms which have water - cleansing properties , being able to break up and dissolve remaining suspended feed particles as well as providing the necessary nourishment for the shrimp larvae . this can make up for difficulties resulting from lack of unknown growth factors in artificial feed 内含使水质净化的微生物，可使多馀之残饵分解，净化水源及供幼虾摄食，以补足人工饲料不足的未知生长因子。
Also , the quality of the live food may not meet the requirements of the larvae . each case directly influences the survival rate of juveniles throughout the industry . for these reasons , researchers have been aggressively studying the balanced nutrients required by artificial feed in order to replace cultured live feed 然而，这些生物饵料的培养需要大规模的设备及劳力，而且受到天然条件所限制，很难确保所需之生物饲料数量，及所生产的生物饵料之营养品质有缺陷，而影响稚鱼虾的存活率。
The content and source of protein and the composition of amino acids are important in artificial feed , because the ingredients of most feed raw material lack arginine , l - lysine and phenylalanine . high levels of growth , food conversion and survival were obtained with a diet containing 31 . 5g arginine kg diet , l - lysine 26 . 0 kg diet and phenylalanine 14 . 0 kg diet in shrimp culture ：饲料的配制，除考虑蛋白质含量还考虑蛋白质来源和原料氨基酸的组成，因饲料原料大致上缺乏离氨酸，精氨酸和苯丙氨酸如幼虾饲料中每公斤含
