作 者：
徐浩然;骆小年;韩如政;于翔;王兴兵;杜瑜
单 位：
辽宁省淡水水产科学研究院;辽宁省大连水文局;大连海洋大学水产与生命学院
摘 要：
2016年5月,将3万尾北方须鳅Barbatula barbatula nuda仔鱼等量放养在玻璃暖棚内的三个水族箱(100cm×50cm×45cm)中,以曝气48h的深井水为水源,水温18℃,24h连续充气,投喂自制微颗粒饲料,培育成平均体质量1.10~1.38g、平均全长5.30~6.04cm的鱼种。再将小规格鱼种养在4个Φ800mm×850mm的圆形塑性桶内,每桶500尾;大规格鱼种养在8个同规格桶内,每桶375尾。桶内24h充气,溶氧量保持在5mg/L以上,养殖水深0.5m,水温16~19℃,每天8:00和18:00投喂鱼体质量3%左右的自制饲料,上午9:00换水2/3以上,水源同上。经114d培育,小规格的北方须鳅全长达(7.49±0.70)cm,体质量(3.09±0.86)g,增长速度达0.02g/d,成活率95.2%;大规格北方须鳅全长达(8.50±0.63)cm,体质量(4.59±1.18)g,增长速度0.03g/d,成活率达67.5%,饲料系数达1.13。两种规格的全长(L)和体质量(W)的关系式分别为W=0.0057L_T~(3.0831)(R~2=0.9273)和W=0.0058L_T~(3.0533)(R~2=0.9136),属匀速增长型。结果表明,室内人工养殖北方须鳅完全可行。
译 名：
Edible Culture of Loach Barbatula barbatula nuda in Indoor Tanks Within the Same Year
作 者：
XU Hao-ran;LUO Xiao-nian;HAN Ru-zheng;YU Xiang;WANG Xing-bing;DU Yu;Freshwater Fisheries Sciences Academy of Liaoning Province;College of Fisheries and Life Science, Dalian Ocean University;Dalian Hydrographic Office of Dalian Liaoning Province;
关键词：
Barbatula barbatula nuda;;indoor farming;;in the same year;;edible fish
摘 要：
A total of 30 thousand of fry loach Barbatula barbatula nuda were reared in three aquaria of each 100 cm × 50 cm × 45 cm supplied with deep well water exposed to the sun 48 h and aerated daily in a greenhouse at the same stock density, and fed self-restraint granulated diet at water temperature of 18℃ in May of 2016. Then 2 thousand fingerlings with average total length of 5.30 ~6.04 cm and body weight of 1.10 ~ 1.38 g reared above were stocked into 4 round plastic barrels of each Φ 800 mm × 850 mm at a rate of 375 fish per barrel for the small-sized fingerlings and at a rate of 500 fish per barrel for the large-sized ones at daily water exchange rate of 2/3 of the total volume water and fed self-restraint granulated diet at 8:00 and 18:00 at feeding rate of some 3% twice a day at water temperature of 16 ~ 19 ℃ for 114 d. It was found that the small-sized fingerlings had final total length of(7.49 ± 0.70)cm, final body weight of(3.09 ± 0.86)g, with weight gain rate of 0.02 g/d and survival rate of 95.2%, while the large-sized fingerlings had final total length of(8.50 ± 0.63)cm, final body weight of(4.59±1.18)g, with weight gain rate of 0.03 g/d and survival rate of 67.5%. There was food conversion ratio of 1.13 during the culture period for both sized loach juveniles. The linear relationship between body weight(W)and total length(L)was expressed as W_(small)=0.0057 L_T~(3.0831)(R~2= 0.9273)for the small-sized fingerlings and W_(larger)=0.0058 L_T~(3.0533)(R~2= 0.9136)for the large-sized fingerlings,with power of near 3, showing uniform growth. Thus, it is feasible for Barbatula barbatula nuda culture in an indoor tank.
