在鲷鱼饲料中添加香油及其对其生长和身体化学成分的影响

IF 0.5 4区 农林科学 Q4 FISHERIES
Oğuz Taşbozan, Celal Erbaş, Şefik S. Tabakoğlu, Özgür Yılmaz, Alexander Atanasoff, Mahmut A. Gökçe
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引用次数: 0

摘要

随着世界范围内鱼油供应的减少和价格的上涨,越来越需要进行科学调查,寻找可用于鱼饲料的替代油来源。本试验旨在研究饲粮中添加香油对海鲷生长性能、饲料利用率和营养成分的影响。25条个体鱼(初始平均体重:32.38±0.27 g)一式三次放入每个鱼缸中。配制4种以鱼粉为基础(等蛋白质49%,等脂质20%)的试验饲料;对照组(C)含有100%的鱼油(FO)和不同数量(20%、40%、60%)的香油(SO)。在75天的试验中,每天投喂3次,测得平均环境温度为22.5±0.5°C,溶解氧值为6.8±0.3 mg/L。试验开始时,选取20尾鱼,测定其营养成分和躯体指标。最后,按相同的程序收集4尾鱼,每缸4尾鱼测定肌肉和肝脏脂肪酸组成。在试验结束时,S60组的末重和饲料利用参数最低。另一方面,在FW方面,FO、SO20和SO40之间没有统计学差异。饲料系数(FCR)以SO40组最佳(P<0.05)。各组全身脂质组成不同。脂质水平以SO40最高,为15.83±0.36%。试验饲料脂肪酸分布对肌肉和肝脏脂肪酸组成有显著影响。油组总ω-6脂肪酸高于油组,油组总ω-3脂肪酸高于油组(P<0.05)。SO20组和SO40组ω-3/ω-6比值相似,对照组ω-3/ω-6比值最高(P<0.05)。因此,根据本研究获得的数据,预测在鲷鱼饲料中添加40%的SO可替代鱼油,在生长性能、饲料利用率和营养成分方面均有显著提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The use of sesame oil in sea bream feeds and its effects on growth and body chemical composition
As fish oil availability declines worldwide and its price rises, there is a growing need to engage in scientific investigations into alternative oil sources for incorporation into fish feeds. This study aimed to determine the effects of dietary sesame oil on the growth performance, feed utilization, and nutritional composition of sea bream ( Sparus aurata ). Twenty-five individual fish (initial mean weight: 32.38±0.27 g) were placed in each tank in triplicate. Four experimental fish meal-based (iso-proteic 49% and iso-lipidic 20%) diets were formulated; the control (C) group contains 100% of fish oil (FO) and varying amounts (20, 40, 60%) of sesame oil (SO). During the 75-day experiment, the fish were fed 3 times a day, and the mean ambient temperature and dissolved oxygen values were measured as 22.5±0.5°C and 6.8±0.3 mg/L, respectively. At the beginning of the experiment, 20 fish were sampled to determine their nutrient composition and somatic indexes. In the end, 4 fish were collected for the same procedures and 4 for each tank’s muscle and liver fatty acid compositions. At the end of the study, the S60 group exhibited the lowest final weight (FW) and feed utilization parameters. On the other hand, there were no statistical differences between FO, SO20, and SO40 in terms of FW. In addition, the SO40 group had the best feed conversion ratio (FCR) among the groups (P<0.05). The whole-body lipid compositions of the groups were different. The highest lipid level was found in SO40 with 15.83±0.36%. Muscle and liver fatty acid composition was significantly affected by the fatty acid profile of experimental feeds. While total ω-6 fatty acids were higher in the SO groups than in group C, total ω-3 fatty acids were higher in the C group compared to the SO groups (P<0.05). The ω-3/ω-6 ratios in the SO20 and SO40 groups showed similarity, while the highest ratio was observed in the control group (P<0.05). As a result, according to data obtained from our study, it is predicted that 40% SO could be added to sea bream feed instead of FO in terms of growth performance, feed utilization, and nutritional composition.
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来源期刊
CiteScore
0.90
自引率
16.70%
发文量
49
审稿时长
3 months
期刊介绍: Information not localized
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