EFFECT OF MARJORAM (MAJORANA HORTENSIS) LEAVES SUPPLEMENTATION ON THE GROWTH PERFORMANCE AND BODY COMPOSITION OF COMMON CARP, CYPRINUS CARPIO FRIES

E. Hussein, G. Zanaty, A. El-Hais, Heba Khaled
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引用次数: 1

Abstract

: An investigation was conducted to evaluate the effect of dietary different levels of (0, 2.5, 5 and 10 g/kg) marjoram leaves supplementation for common carp ( Cyprinus carpio ) fries. 420 fries (averaged 0.34±0.1 g) were randomly distributed into four treatments, three replicates in 12 aquaria and fed experimental diets four times per day. Results revealed that marjoram leaves as feed additives in the diets for common carp fries did affect the growth performance parameters with significant differences ( P<0.05 ) among all dietary treatments. A decreasing trend was observed when the inclusion of marjoram leaves in the diets increased. Fish fed M 1 (2.5 g/kg) diet showed the best FCR and significantly differed ( P<0.05 ) among all dietary treatments. No significant differences were observed in the survival of fish fed the examined diets and fish fed M 3 diet gained the highest value (96.2%). Also, significant differences ( P<0.05 ) were observed in the protein content of fish body and fish fed M 3 diet gained the highest value. Also, the lipid content was similar among all treatments. However, the inclusion of marjoram leaves in the experimental diets did not significantly ( P>0.05 ) affect the condition factor (K), gonadosomatic (GSI), and hepatosomatic (HSI). Moreover, significant differences ( P<0.05 ) were observed in viscerasomatic (VSI) indices values among all treatments. No diet-related histopathological changes were noted in all examined tissues such as liver, intestine and gonads of common carp fries. The normality of all examined fish tissues indicated that marjoram leaves are safe to use in fish diets and can be added at 2.5 g/kg diet to improve the performance and feed utilization in the diets for common carp fries without any adverse effects.
添加马郁兰叶对鲤鱼生长性能和体成分的影响
本试验旨在研究不同添加水平(0、2.5、5和10 g/kg)马郁兰叶对鲤鱼育苗的影响。试验选取420只(平均0.34±0.1 g)鱼苗,随机分为4个处理、3个重复、12个水族箱,每天饲喂4次试验饲料。结果表明,饲料中添加马角兰叶对鲤鱼育苗的生长性能参数有显著影响(P0.05),对条件因子(K)、促性腺因子(GSI)和肝体因子(HSI)有显著影响。各组脏器脏器(VSI)指数差异有统计学意义(P<0.05)。鱼的肝脏、肠道、生殖腺等组织均未见饲料相关的病理变化。结果表明,马郁兰叶可安全添加于鱼饲料中,添加量为2.5 g/kg,可提高普通鲤鱼饲料的生产性能和饲料利用率,且无不良反应。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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