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Changes on the Development of Rigor Mortis in Cultured Tilapia (Oreochromis niloticus) Fed with a Mixture of Plant Proteins
Journal of Chemistry ( IF 3 ) Pub Date : 2020-06-15 , DOI: 10.1155/2020/5934193
Nathaly Montoya Camacho 1, 2 , Enrique Márquez Ríos 3 , Francisco Javier Castillo Yáñez 4 , Saúl Ruíz Cruz 5 , Aldo Alejandro Arvizu Flores 4 , Wilfrido Torres Arreola 3 , Jose Luis Cárdenas López 3 , Santiago Valdéz Hurtado 6 , Víctor Manuel Ocaño Higuera 4
Affiliation  

In recent years it has been pointed out that the feed of farmed fish has an effect on the quality of the final product. Therefore, this study evaluated the effect of fishmeal (FM) replacement by a mixture of plant protein (MPP) on the development of rigor mortis of tilapia (Oreochromis niloticus). One hundred and twenty fish at an initial average weight of 123 ± 6.3 g were fed with three extruded isonitrogenous and isolipidic 6.2% crude lipids experimental diets, in which FM were replaced by 0% (D0), 50% (D50), and 100% (D100) of MPP (soybean meal, corn meal, wheat meal, and sorghum meal). A reference diet (DC) containing FM as the main protein source was used as a control. The fish were divided into triplicate groups per dietary treatment. The experiment was conducted in a tank system at 26.8°C water temperature for 67 days. The chemical composition of experimental diets and muscle were determined. The glycogen, adenosine 5′-triphosphate (ATP) and related compounds, pH, shear force, and rigor index (RI%) were monitored during storage on ice for 48 h. The results indicated that FM replacement affected ( ) the muscle composition, where the fish fed with D100 presented the higher content of lipids and ash. Fish fed with D0 and DC presented a more pronounced onset of rigor mortis and also showed a higher IR%, a lower content of glycogen, ATP, adenosine 5′-diphosphate (ADP), adenosine 5′-monophosphate (AMP), pH, and shear force. The changes in chemical composition of muscle and other parameters evaluated indicated that FM replacement increases energy reserves (glycogen, ATP, ADP, and AMP) which delayed the onset of rigor mortis, as well as a lower pH and shear force in the muscle of tilapia. Therefore, the substitution of FM by MPP could contribute to delaying the onset of rigor mortis and with this, the quality and shelf life of tilapia could be increased.

中文翻译:

用植物蛋白混合物喂养的养殖罗非鱼(Oreochromis niloticus)中尸僵发育的变化

近年来,有人指出养殖鱼类的饲料对最终产品的质量有影响。因此,本研究评估了用植物蛋白 (MPP) 混合物替代鱼粉 (FM) 对罗非鱼 (Oreochromis niloticus) 僵硬发育的影响。123 条初始平均重量为 123 ± 6.3 g 的鱼被喂食三种挤压的异氮和异脂 6.2% 粗脂质实验日粮,其中 FM 被 0% (D0)、50% (D50) 和 100 MPP(豆粕、玉米粉、小麦粉和高粱粉)的 % (D100)。使用含有 FM 作为主要蛋白质来源的参考饮食 (DC) 作为对照。每次饮食处理将鱼分成三份。实验在水温 26.8°C 的水箱系统中进行 67 天。测定了实验饮食和肌肉的化学成分。在冰上储存 48 小时期间监测糖原、5'-三磷酸腺苷 (ATP) 和相关化合物、pH、剪切力和刚性指数 (RI%)。结果表明,FM 替代影响 ( ) 肌肉组成,其中喂食 D100 的鱼呈现出较高的脂质和灰分含量。喂食 D0 和 DC 的鱼表现出更明显的尸体僵硬发作,并且还表现出更高的 IR%、更低的糖原含量、ATP、5'-二磷酸腺苷 (ADP)、5'-单磷酸腺苷 (AMP)、pH、和剪切力。肌肉化学成分和其他评估参数的变化表明,FM 替代增加了能量储备(糖原、ATP、ADP 和 AMP),从而延迟了僵硬的发作,以及罗非鱼肌肉中较低的 pH 值和剪切力。因此,用 MPP 替代 FM 可以有助于延缓尸体僵硬的发生,从而提高罗非鱼的质量和保质期。
更新日期:2020-06-15
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