The Impact of Stocking Density on Water Quality, Survival and Growth Performance of Free-Swimming Larvae of Goldfish, Carassius auratus (Linnaeus, 1758) in an Indoor Biofloc System

IF 1.9 4区农林科学 Q2 FISHERIES

Aquaculture Research Pub Date : 2025-05-21 DOI:10.1155/are/8066222

Vaibhav R. Gote, M. J. Gitte, S. J. Meshram, R. M. Tibile, H. B. Dhamagaye, Chandni Roy Dutt, Sarang N. Chavan, Shivani S. Kondekar, Ediga Arun Goud, D. R. Palwe, Mrunal N. Nasre

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Abstract

A 30-day experiment was conducted to assess the influence of varying stocking densities (2, 4, 6 and 8 larvae L⁻¹) on the growth performance and survival of free-swimming larvae of Carassius auratus, commonly known as goldfish, within an indoor biofloc system. The larvae (7.05 ± 0.02 mm in length and 1.40 ± 0.00 mg in weight) were stocked in circular tanks wherein a volume of 50 L of water was maintained and provided with vigorous aeration. The experiment used a completely randomised design with five replicates for each density group. A diet comprising a 1:1 mixture of powdered groundnut oil cake and rice bran (RB) was provided as feed. The RB was added daily as a carbon source to maintain the C/N ratio at 20:1. The highest % length gain (209.46 ± 1.47), % weight gain (14028 ± 99.65), specific growth rate (SGR) (16.50 ± 0.02), survival (85.00% ± 1.00) and the lowest apparent feed conversion ratio (AFCR) (1.84 ± 0.01) were recorded in the density group of 2 larvae L⁻¹ (p < 0.05) as compared to other density groups. The results indicated a better stocking density of 2 larvae L⁻¹ for growing free-swimming larvae of goldfish for 30 days.

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放养密度对室内生物群落中鲫鱼（Carassius auratus, Linnaeus, 1758）自由游动幼虫水质、存活和生长性能的影响

通过为期30天的试验，研究了不同放养密度（2、4、6和8个L−1幼虫）对室内生物絮团系统中鲫鱼（Carassius auratus，又称金鱼）自由游动幼虫生长性能和存活率的影响。将体长为7.05±0.02 mm，体重为1.40±0.00 mg的幼鱼放养在容积为50 L的圆形池中，并给予充分的曝气。试验采用完全随机设计，每个密度组设5个重复。以花生油粉饼和米糠（RB）为饲料，饲料比例为1:1。每天添加RB作为碳源，使碳氮比保持在20:1。L−1 （p < 2）仔鱼密度组长增重%（209.46±1.47）、增重%（14028±99.65）、特定生长率（SGR）（16.50±0.02）、存活率（85.00%±1.00）最高，表观饲料系数（AFCR）最低（1.84±0.01）；0.05)。结果表明，放养30 d后，放养密度为2条L−1的金鱼幼虫较好。

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来源期刊

Aquaculture Research 农林科学-渔业

CiteScore

4.60

自引率

5.00%

发文量

464

审稿时长

5.3 months

期刊介绍： International in perspective, Aquaculture Research is published 12 times a year and specifically addresses research and reference needs of all working and studying within the many varied areas of aquaculture. The Journal regularly publishes papers on applied or scientific research relevant to freshwater, brackish, and marine aquaculture. It covers all aquatic organisms, floristic and faunistic, related directly or indirectly to human consumption. The journal also includes review articles, short communications and technical papers. Young scientists are particularly encouraged to submit short communications based on their own research.