濒临灭绝的半岛鲤鱼Hypselobarbus pulchellus日粮中杜鹃花和缬草成分的利用(Day, 1870)

IF 0.7 4区 农林科学 Q4 FISHERIES Journal of Applied Ichthyology Pub Date : 2022-06-04 DOI:10.1111/jai.14338
Gangadhar Barlaya, Pinky Basumatary, Channaveer Huchchappa Raghavendra, Banahalli Sriramreddy Ananda Kumar, Hemaprasanth Kannur
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引用次数: 1

摘要

为评价饲料中添加30%、60%和90%水平的小叶杜鹃和水蛭属植物对水蛭生长和成活率的影响,采用鱼苗法对水蛭进行了60 d的生长试验。鱼苗平均体重23.07±0.96 mg,平均体长1.57±0.24 cm,每缸12只,分别饲喂1种试验饲粮(含杜鹃和水蛭的3种饲粮)和1种对照饲粮。每隔两周分析一次水质参数,不同处理间无显著差异(p > 0.05)。杜鹃花和谷草添加量分别超过60%和30%的组鱼的平均末重降低(p < 0.05)。饲粮中添加水蛭菌的鱼的平均终长度在不同处理之间没有差异,但在饲粮中添加水蛭菌的组,鱼的平均终长度逐渐缩短(p > 0.05)。两组患者的病情因素和生存率无差异(p > 0.05)。研究表明,在育苗过程中,可在饲料中添加高达60%的杜鹃花和高达30%的缬草作为饲料成分。
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Utilization of Azolla and Vallisneria as ingredients in the diet for endangered peninsular carp Hypselobarbus pulchellus (Day, 1870)

A 60 days growth trial was conducted with fry of Hypselobarbus pulchellus for evaluating the effect of incorporation of two aquatic plants Azolla microphylla and Vallisneria spiralis at 30, 60 and 90% levels in the diet on growth and survival. The fry (average weight 23.07 ± 0.96 mg and average length 1.57 ± 0.24 cm) were stocked at 12 numbers per tank and fed to satiation with one of the experimental diets (three diets each with azolla and vallisneria) or a control diet. Water quality parameters analysed at fortnightly intervals did not show significant difference between treatments (p > .05). The mean final weight of fish reduced in groups fed diets with azolla and vallisneria incorporated beyond 60% and 30% respectively (p < .05). While the mean final length of fish fed azolla diets did not differ among the treatments, it gradually reduced in groups fed diets with increasing levels of vallisneria incorporation (p > .05). The condition factor and survival did not vary between treatments (p > .05). The study indicates the possible incorporation of azolla up to 60% and vallisneria up to 30% as feed ingredients in the diet for H. pulchellus during fingerling raising.

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来源期刊
Journal of Applied Ichthyology
Journal of Applied Ichthyology 生物-海洋与淡水生物学
CiteScore
2.30
自引率
11.10%
发文量
73
审稿时长
3-8 weeks
期刊介绍: The Journal of Applied Ichthyology publishes articles of international repute on ichthyology, aquaculture, and marine fisheries; ichthyopathology and ichthyoimmunology; environmental toxicology using fishes as test organisms; basic research on fishery management; and aspects of integrated coastal zone management in relation to fisheries and aquaculture. Emphasis is placed on the application of scientific research findings, while special consideration is given to ichthyological problems occurring in developing countries. Article formats include original articles, review articles, short communications and technical reports.
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