A study was conducted to evaluate the effect of three different organic manures and salinity levels on production of greenhouse gases (GHGs) and their interactive effects on growth and physiological parameters of common carp (Cyprinus carpio) in peri‐urban aquaculture tank system. The experiment had 3 × 3 factorial design with three types of organic manures, that is humic acid, FMGY (fermented boiled rice, molasses, groundnut oil cake and yeast) and cow dung tested in combination with three different salinity levels, that is 0.2, 2.5 and 5.0 g/L in triplicates. C. carpio fingerlings (average weight and length of 7 g and 7.15 cm respectively) were distributed to 27 number of 1000‐litre FRP tanks (nine treatments with triplicates) containing 10 fish per tank. Fish were maintained for an experimental period of 180 days with a diet containing 30% crude protein. GHG estimation was done on 120th, 150th and 180th days at 30‐day interval by collecting gaseous sample following floating chamber method. Lowest GHG emission (917.73) CO₂ equivalent (mg m⁻² h⁻¹) was recorded in T3 treatment (humic acid + 5 g/L salinity). Highest fish growth was evident in T2 treatment (humic acid with 2.5 g/L salinity). GaSI and HSI were higher in treatment T2. Lowest stress parameters (plasma glucose and serum cortisol) were recorded in T4 treatment (FMGY with 0.2 g/L salinity). In terms of GHG emission, growth and bio‐indices in C. carpio tank rearing, humic acid is the best organic manure at less than 5 g/L water salinity.

中文翻译：

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不同有机肥和盐分水平对水产养殖系统温室气体排放和鲤鱼生长的影响

进行研究，以评估对温室气体的产生三种不同的有机肥和盐度水平（温室气体）和生长其互动效果和鲤鱼（的生理参数的影响鲤鱼）城郊水产养殖箱系统。该实验采用3×3因子设计，结合了三种不同的盐度水平，分别测试了腐殖酸，FMGY（发酵米饭，糖蜜，花生油饼和酵母）和牛粪三种有机肥，并进行了测试。一式三份，分别为2.5和5.0 g / L。鲤鱼将鱼种（分别平均重量和长度分别为7克和7.15厘米）分配到27个1000升FRP槽（九种处理，一式三份）中，每个槽含10条鱼。用含有30％粗蛋白的日粮将鱼维持180天的实验期。通过按照浮室法收集气态样品，以30天的间隔在第120、150和180天进行了温室气体估算。最低GHG排放量（917.73）CO ₂当量（mg m ^-2 h ^-1）记录在T3处理中（腐殖酸+ 5 g / L盐度）。在T2处理（盐度为2.5 g / L的腐殖酸）中，鱼类的生长最高。在治疗T2中，GaSI和HSI较高。在T4处理（盐度为0.2 g / L的FMGY）中记录了最低的应激参数（血浆葡萄糖和血清皮质醇）。就鲤鱼养殖池的温室气体排放，生长和生物指标而言，腐殖酸是水盐度低于5 g / L的最佳有机肥料。