The effectiveness of the thyroxine hormone in feed to improve growth performance efficiency and the survival rate of the cantang grouper (Epinephelus sp.)

Acta Aquatica Pub Date : 2023-04-07 DOI:10.29103/aa.v10i1.10835

Mahdaliana Mahdaliana, Salamah Salamah

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Abstract

This study aims to determine the effectiveness of the hormone thyroxine in feed to increase the efficiency of growth performance and revive the life of the cantang grouper (Epinephelus sp.). Something that can be done to achieve this goal is to provide the hormone thyroxine in fish feed to increase growth acceleration. This study used an experimental method using a non-factorial completely randomized design (CRD) with five treatments and three replications. The treatments in this study were: thyroxine hormone A (0 mg), B (6 mg), C (7 mg), D (8 mg), and E (9 mg). Parameters observed were: feed efficiency (ep), growth rate, feed conversion ratio (FCR), fish behavior, and survival. The results showed that fish behavior during rearing included fish movement, appetite, and fish skin color. The most active swimming fish were found in all treatments which were given feed containing the hormone thyroxine. The best feed efficiency (EP) value in treatment E was 76.29%. The value of the feed conversion ratio (FCR) in treatment E was 1.76%. The best growth was in treatment E in weight (2.88 cm) and length (36.85 cm). The best survival in treatments C and D was 98%. Water quality parameters during the study were temperature 27-280C, pH 7.0-7.9, Salinity 25-30 ppt, DO 5.9-6.9ppm, and Ammonia 0.0359-0.1946 ppm. The results of the observations showed that there were differences in fish-fed hormone-containing feed for 60 days and fish behavior. The fish looks more agile and the color is brighter.Keywords: Cantang Grouper; Feed; Growth; Survival; Thyroxine Hormone

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饲料中添加甲状腺素对沧塘石斑鱼生长性能和成活率的影响

本研究旨在确定饲料中激素甲状腺素对提高塘石斑鱼生长性能和恢复其寿命的有效性。为了达到这个目标，我们可以在鱼饲料中添加甲状腺素来加速鱼的生长。本研究采用非因子完全随机设计(CRD)的实验方法，5个处理，3个重复。本研究的治疗方法为:甲状腺素A (0 mg)、B (6 mg)、C (7 mg)、D (8 mg)、E (9 mg)。观察参数为:饲料效率(ep)、生长率、饲料系数(FCR)、鱼类行为和成活率。结果表明，鱼在饲养过程中的行为包括鱼的运动、食欲和鱼的皮肤颜色。在所有喂食含有甲状腺激素饲料的处理中，游鱼最活跃。处理E的最佳饲料效率(EP)值为76.29%。处理E的饲料系数(FCR)为1.76%。生长最好的是处理E，重2.88 cm，长36.85 cm。治疗C和D的最佳生存率为98%。研究期间的水质参数为温度27 ~ 280c, pH 7.0 ~ 7.9，盐度25 ~ 30ppt, DO 5.9 ~ 6.9ppm，氨0.0359 ~ 0.1946 ppm。观察结果表明，饲喂含激素饲料60 d后，鱼的行为发生了变化。鱼看起来更灵活，颜色更明亮。关键词:沧塘石斑鱼;饲料;经济增长;生存而生存;甲状腺素激素

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来源期刊

Acta Aquatica

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审稿时长

16 weeks