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首页> 外文期刊>Biotropia: the Southeast Asian journal of tropical biology >RESPONSE TO HUMIC ACID ADDITION INTO FEEDS WITH HEAVY METAL CONTENT MADE OF GREEN MUSSELS ON GROWTH OF ASIAN SEABASS
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RESPONSE TO HUMIC ACID ADDITION INTO FEEDS WITH HEAVY METAL CONTENT MADE OF GREEN MUSSELS ON GROWTH OF ASIAN SEABASS

机译：对亚洲海藻生长中绿色贻贝重金属含量饲料中腐殖酸添加的反应

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摘要

High in nutrients, green mussel Perna viridis can be used for fish meal replacement in fish diet, yet they contain heavy metals. The addition of Humic Acid (HA) in animals feed brings many advantages, one of which it can chelate heavy metals. HA addition in feed formulation is needed to prevent the accumulation of heavy metals in fish body. An experiment was designed to evaluate the response of HA addition in the diets made of green mussels which contains heavy metals on the growth performance and feed efficiency of Asian seabass, Lates calcarifer juveniles. The experiment was designed by Completely Random Design (CRD) with 5 treatments and 3 replications. A total of five experimental diets were formulated with difference dosage of HA addition (0, 400, 800, 1200, and 1600) mg Kg~(-1) of feed in the experimental diets (A, B, C, D and E), respectively. The experimental diets were fed to triplicate group of 15 Asian seabass juveniles with initial body weight of 4.30 ± 0.60 g in a 70 days cultivation by feeding at satiation. The result shows feed comsumption, feed digestibility, protein retention, growth performance and feed eficiency were significantly affected by the HA addition in the fish diet (P< 0.05). Treatment E with HA addition 1600 mg Kg~(-1) diet proved to give best biological response among all treatments. This indicates that the humic acid addition in the diet formulation can improve the utilization of feed for fish growth. The heavy metal Cd in flesh of Asian seabass is still under the limit set in the food safety standard, so the fish in this experiment are still considered safe for human consumption. The present study concluded that green mussel meal as alternative source protein with HA addition can be considered as potential feed additive for the diets of Asian seabass juveniles.
机译：绿贻贝高营养素营养丰富，可用于鱼饲料中的鱼粉替代，但它们含有重金属。在动物饲料中添加腐殖酸（HA）具有许多优点，其中之一可以螯合重金属。饲料配方中需要添加HA，以防止鱼体内重金属的积累。设计了一个实验，以评估在含有重金属的青口贻贝制成的日粮中添加HA对亚洲鲈鱼（Lates calcarifer幼鱼）的生长性能和饲料效率的响应。该实验由完全随机设计（CRD）设计，共进行5次处理和3次重复。总共配制了五种实验日粮，分别在实验日粮（A，B，C，D和E）中添加了不同剂量的HA（0、400、800、1200和1600）mg Kg〜（-1）。 ， 分别。在70天内的饱足饲养中，将实验饮食喂入15头亚洲鲈鱼一式三份，初始体重为4.30±0.60 g。结果表明，鱼饲料中添加HA显着影响饲料消耗，饲料消化率，蛋白质保留，生长性能和饲料效率（P <0.05）。添加HA 1600 mg Kg〜（-1）日粮的处理E被证明在所有处理中均具有最佳的生物学反应。这表明在日粮配方中添加腐殖酸可以提高饲料对鱼类生长的利用率。亚洲鲈鱼肉中的重金属Cd仍在食品安全标准中规定的限值范围内，因此该实验中的鱼仍被认为可安全食用。本研究得出结论，青贻贝粉作为添加HA的替代来源蛋白可以被视为亚洲鲈鱼幼鱼日粮的潜在饲料添加剂。

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