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首页> 外文期刊>Fish Physiology and Biochemistry >Methyl donors potentiates growth, metabolic status and neurotransmitter enzyme in Labeo rohita fingerlings exposed to endosulfan and temperature
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Methyl donors potentiates growth, metabolic status and neurotransmitter enzyme in Labeo rohita fingerlings exposed to endosulfan and temperature

机译：甲基供体增强暴露于硫丹和温度下的Labeo rohita鱼种的生长，代谢状态和神经递质酶

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A 2-month preliminary study was conducted to delineate the effect of dietary methyl donors (choline, betaine, and lecithin) on the growth performance and metabolic status of Labeo rohita fingerlings subjected to endosulfan alone and in combination with elevated temperature. Four iso-caloric and iso-nitrogenous diets viz. basal diet, betaine-supplemented diet, choline–supplemented diet and lecithin-supplemented diet were prepared and fed to the different experimental groups throughout the experimental period as per the design. Two hundred and seventy fingerlings (average weight 7.95 ± 0.04 g) were randomly distributed in six treatment groups each having three replicates. The experimental groups were as follows: fish subjected to normal water (without endosulfan) and fed with control diet (control group T0), fish subjected to endosulfan-treated water and fed with control diet (T1), fish subjected to concurrent exposure of endosulfan and elevated temperature and fed with control diet (T2), fish subjected to endosulfan and elevated temperature and fed with choline-supplemented diet (T3), fish subjected to endosulfan and temperature and fed with betaine-supplemented feed (T4), and fish subjected to endosulfan and temperature and fed with lecithin-supplemented feed (T5). The result shows that in both the groups, that is, endosulfan exposed and concurrent exposure to endosulfan and elevated temperature group of L. rohita the growth performance like percentage weight gain, feed conversion ratio and specific growth rates were significantly different (P 0.01) when fed with supplemented diet compared with control fed group. The liver LDH and MDH activity were significantly lower in lecithin, betaine, and choline fed groups. The muscle AST as well as G6PDH, AST, and ALT did not vary but liver ALT, gill and liver ATPase, intestine ALP, muscle and liver glycogen varied significantly with dietary supplementation. The liver and gill glutathione-S-transferase (GST) activities were significantly lower in methyl donors-supplemented groups and brain AChE activity showed lower inhibition in supplemented groups in both endosulfan alone and concurrently exposed endosulfan and temperature groups. The result obtained in this study concludes that inclusion of methyl donors, particularly lecithin and betaine in feed as nutritional supplements have potential to improve growth and stress mitigating effect in L. rohita fingerlings.
机译：进行了为期2个月的初步研究，以确定饮食中甲基供体（胆碱，甜菜碱和卵磷脂）对单独使用硫丹并与高温联合使用的Labeo rohita鱼种的生长性能和代谢状态的影响。四种等热量和等氮饮食。根据设计，准备基础饮食，补充甜菜碱的饮食，补充胆碱的饮食和卵磷脂的饮食，并在整个实验期间将其喂食到不同的实验组。将270种鱼种（平均重量7.95±0.04 g）随机分布在六个治疗组中，每个治疗组重复三次。实验组如下：食用普通水（无硫丹）并饲喂对照饲料的鱼（对照组T0 ），食用硫丹处理过的水并饲喂对照饲料的鱼（T1 ） ，同时接受硫丹和高温暴露并饲喂对照饲料（T2 ）的鱼类，接受硫丹和高温并掺有胆碱饮食（T3 ）的鱼类，接受硫丹的鱼类温度和温度，补充甜菜碱的饲料（T4 ），鱼进行硫丹和温度补充卵磷脂的饲料（T5 ）。结果表明，硫丹暴露组和硫丹同时暴露组以及升高的温度组对罗氏乳杆菌的生长性能，如增重百分比，饲料转化率和比生长速率都有显着差异（P <0.01）。与对照组相比，补充饮食喂养时。卵磷脂，甜菜碱和胆碱喂养组的肝脏LDH和MDH活性显着降低。肌肉AST以及G6PDH，AST和ALT不变，但肝脏ALT，g和肝脏ATPase，肠ALP，肌肉和肝糖原随饮食补充而显着变化。在补充甲基供体的组中，肝和g谷胱甘肽-S-转移酶（GST）活性显着降低，而单独补充硫丹和同时暴露于硫丹和温度组的补充组中，脑AChE活性显示出较低的抑制作用。这项研究得出的结论是，饲料中添加甲基供体，特别是卵磷脂和甜菜碱作为营养补品，有可能改善罗希塔鱼种的生长和缓解压力的作用。

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