Apparent Availabilities of Amino Acids and Minerals from Several Protein Sources for Fingerling Rainbow Trout.
Apparent Availabilities of Amino Acids and Minerals from Several Protein Sources for Fingerling Rainbow Trout.
复制标题
虹鳟鱼种多种蛋白质来源的氨基酸和矿物质的表观利用率。
DOI：
10.2331/fishsci.63.995
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发表时间：
1997
影响因子：
1.9
通讯作者：
T. Akiyama
中科院分区：
文献类型：
--
作者：
Takeshi Yamamoto;K. Ikeda;T. Unuma;T. Akiyama
我们在之前的论文中报道过，鱼粉中多种替代蛋白源的组合或在蛋白源中补充结晶必需氨基酸可改善鱼类日粮的营养质量。1-5) 在这些研究中，仅关注蛋白源的氨基酸组成，而很少关注蛋白源中氨基酸的可用性。与对测试日粮或饲料成分的蛋白质消化率的大量研究相比，对日粮蛋白质的氨基酸利用率（消化率）的研究较少。6-13) 其中，对几种饲料成分氨基酸利用率的比较研究仅限于斑点叉尾鮰、7) 鲤鱼 Cyprinus carpio、9) 大西洋鲑鱼 Salmo salar、10-11) 和黄尾鰤。 13) 这些研究研究表明，不仅蛋白质消化率因蛋白质来源和鱼类种类而异，而且蛋白质来源的氨基酸利用率也显示出内部变化。这意味着应确定单个鱼类的蛋白质来源的蛋白质消化率和单个氨基酸的利用率，以配制高效且经济的鱼饲料。与氨基酸利用率相比，对饲料原料矿物质利用率的比较研究很少。在斑点叉尾鮰、14) 鲤鱼、15,16) 黑鲷 Acan thopagrus schlegeli,15) 和虹鳟 Oncorhynchus mykiss.16) Satoh 等人中检查了鱼粉和一些饲料成分中磷 (P) 的有效性。17) Satoh 等人检查了不同种类虹鳟鱼粉中锌 (Zn) 的有效性。由于矿物质有效性研究相对限于鱼粉中的磷和锌，因此有必要对各种蛋白质来源中矿物质的有效性进行进一步研究。在这项研究中，我们确定了脱脂豆粕 (SBM)、麦芽蛋白粉 (MPF) 和玉米蛋白粉 (CGM) 与虹鳟鱼种白鱼粉 (FM) 的蛋白质表观消化率以及氨基酸和矿物质的利用率。
We have reported in previous papers that the combina tion of multiple alternative protein sources for fish meal or the supplementation of crystalline essential amino acids to the protein sources improved the nutritional quality of fish diets.1-5) In those studies, only the amino acid composition of the protein sources was focused on and little attention was paid to the availability of amino acids in the protein sources. In contrast to numerous studies on protein digestibility of test diets or feed ingredients, amino acid availability (digestibility) for dietary proteins has been less intensively studied.6-13) Among them, studies on the comparative ami no acid availability for several feed ingredients are limited to channel catfish Ictalurus punctatus,7) common carp Cyprinus carpio,9) Atlantic salmon Salmo salar,10-11) and yellowtail Seriola quinqueradiata.13) These studies have rev ealed that not only protein digestibilities vary among pro tein sources and fish species, but also amino acid availabili ties of a protein source show intravariation. This means that both protein digestibility and individual amino acid availabilities of a protein source for individual fish species should be determined to formulate efficient and economi cal fish feeds. Studies on the comparative mineral availability for feed ingredients are few compared with those of amino acid availability. Availability of phosphorus (P) in fish meals and some feed ingredients was examined in channel catfish,14) common carp,15,16) black sea bream Acan thopagrus schlegeli,15) and rainbow trout Oncorhynchus mykiss.16) Satoh et al.17) examined the availability of zinc (Zn) in different kinds of fish meal for rainbow trout. Since mineral availability studies are relatively limited to P and Zn in fish meal, further research is necessary on the availability of minerals from various protein sources. In this study, we determined the apparent digestibility of protein and availabilities of amino acids and minerals for defatted soybean meal (SBM), malt protein flour (MPF), and corn gluten meal (CGM) in comparison with those for white fish meal (FM) for fingerling rainbow trout.