Effects of adding organic acid salts (OAS) to plant protein (PP)–rich feeds were evaluated in a trial with juvenile yellowfin seabream (Acanthopagrus latus) (initial weight ca 6.5 g). Fish were given iso-nitrogenous (ca. 48% protein) and iso-caloric (ca. 19.6 kJ g⁻¹) feeds supplemented with sodium acetate (SA) and sodium propionate (SP): SP5 (5 g SP kg⁻¹), SP10 (10 g SP kg⁻¹), SA5 (5 g SA kg⁻¹), SA10 (10 g SA kg⁻¹), and SP+SA (5 g SP kg⁻¹ + 5 g SA kg⁻¹). A PP-rich feed without OAS supplementation was the control. There were 3 replicates for each treatment and trial duration was 8 weeks, during which time the fish were kept in 60-L tanks (10 fish per tank) and fed to satiation twice each day. At the end of the trial, growth performance, feed utilization, whole-body proximate composition, and hemato-biochemical parameters were analyzed. Final weights in SP5 (14.61 g), SP10 (14.14 g), and SP+SA (14.29 g) groups were remarkably higher than the control (11.18 g). The highest and the least feed conversion ratio values were in the control (1.71) and SP5 (1.19) groups, respectively. Whole-body proximate composition did not change among groups. Blood hemoglobin contents in fish fed the OAS-supplemented diets were between 7.44 and 7.88 g dL⁻¹ that was higher than the control (6.47 g dL⁻¹). Fish fed on the OAS-incorporated diets had greater amounts of plasma total protein (6.0–6.94 g dL⁻¹) compared to the control (5.06 g dL⁻¹). According to the findings of this study, administrating 5 g SP kg⁻¹ of a PP-rich diet is recommended for improving growth and welfare of A. latus juveniles.

在幼鱼黄鳍鲷（Acanthopagrus latus）（体重约6.5 g）的试验中，评估了向富含植物蛋白（PP）的饲料中添加有机酸盐（OAS）的效果。给予鱼类等氮饲料（约占蛋白质的48％）和等热量（约19.6 kJ g ^-1）的饲料，并补充乙酸钠（SA）和丙酸钠（SP）：SP5（5 g SP kg ^-1） ，SP10（10 g SP kg ^-1），SA5（5 g SA kg ^-1），SA10（10 g SA kg ^-1）和SP + SA（5 g SP kg ^-1 + 5 g SA kg ^-1）。对照中不添加OAS的富含PP的饲料。每种处理重复3次，试验时间为8周，在此期间，将鱼饲养在60升的水箱中（每箱10条鱼），每天喂饱两次。在试验结束时，分析了生长性能，饲料利用率，全身附近成分和血液生化参数。SP5（14.61 g），SP10（14.14 g）和SP + SA（14.29 g）组的最终体重明显高于对照组（11.18 g）。最高饲料转化率值和最低饲料转化率值分别在对照组（1.71）和SP5（1.19）组中。各组之间的全身近似组成没有变化。用OAS补充饮食的鱼的血红蛋白含量在7.44至7.88 g dL ^-1之间其高于对照（6.47g dL ^-1）。鱼饲喂的OAS-掺入饮食有更大量的血浆中的总蛋白（6.0-6.94克分升^-1）相比于对照（5.06克dL的^-1）。根据这项研究的结果，建议服用5 g SP kg ^-1的富含PP的饮食，以改善A. latus幼鱼的生长和福利。