Particulated Microalgae Composite (PMC) As Substitute For Live Microalgae In Culture Of Juvenile Manila Clam Ruditapes Philippinarum (A. Adams And Reeve, 1850): A Feasibility Analysis

Pub Date : 2021-09-30 DOI:10.21077/ijf.2021.68.3.114197-07

Jian Liang, X. Bi, W. Dai, Y. Deng, undefined undefined

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引用次数: 1

Abstract

To evaluate the feasibility of particulated microalgae composite (PMC) as live microalgae substitute in artificial breeding of Manila clam Ruditapes philippinarum, effects of replacing Dicrateria inornata with partial or total PMC on the growth, digestive enzyme activities, nutritional ingredient composition and microbial composition in faeces of juvenile clams were investigated. The results showed that 50 and 100% PMC replacement did not affect the mean shell length, mean body weight and survival rate of juvenile clams (p>0.05). Juvenile clams fed with 100% PMC replacement had higher lipase and pepsin activities than those fed with 100% D. inornata (p 0.05). Significant increase in delicious amino acid contents (p<0.05) was observed with 100% PMC replacement. PMC replacement did not affect the diversity of dominant phyla in faeces, but the abundance of each dominant phylum. Similar relative abundance of faecal bacteria was observed when D. inornata was replaced with 50 and 100% PMC. PMC appeared to be a potential substitute for microalgae in artificial Manila clam breeding. Keywords: Dicrateria inornata, Microalgae substitute, Particulated microalgae composite, Ruditapes philippinarum

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微粒微藻复合材料(PMC)替代活微藻在菲律宾马尼拉蛤幼鱼养殖中的可行性分析(A. Adams And Reeve, 1850)

为了评价颗粒微藻复合物（PMC）作为活微藻替代品在菲律宾蛤人工养殖中的可行性，研究了用部分或全部PMC替代印度双壳蛤对幼蚌生长、消化酶活性、营养成分组成和粪便微生物组成的影响。结果表明，50%和100%PMC替代对幼蚌的平均壳长、平均体重和成活率均无影响（p>0.05），100%PMC替代的幼蚌脂肪酶和胃蛋白酶活性均高于100%粉蚧（p>0.05）；100%PMC替代能显著提高鲜食氨基酸含量（p<0.05）。PMC替代不影响粪便中优势门的多样性，但影响每个优势门的丰度。当用50%和100%的PMC代替D.inornata时，观察到粪便细菌的相对丰度相似。PMC似乎是人工马尼拉蛤养殖中微藻的潜在替代品。关键词：印度Dicrateria inornata，微藻替代品，颗粒微藻复合物，菲律宾Ruditapes philippinarum

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