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首页> 外文期刊>Journal of Aquaculture in the Tropics >EFFECT OF BIOFLOC TECHNOLOGY IN THE NURSERY REARING OF GOLDFISH
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EFFECT OF BIOFLOC TECHNOLOGY IN THE NURSERY REARING OF GOLDFISH

机译：BIOFLOC技术在金鱼育苗中的作用

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摘要

In the present study, the impact of biofloc technology on the goldfish fry was investigated. The mean value of water temperature, pH, dissolved oxygen, ammonia-N, nitrite-N, nitrate-N and floe volume (FV) recorded in the biofloc treatment system for goldfish fry were 27.3°C, 7.9, 3.9 mg/l, 48.32 ug-at-N/l, 0.62 ug-at-N/l, 238.08 ug-at-N/l and 8.48 ml/1 respectively. The control set during the nursery rearing of goldfish fry registered the mean value of water temperature (28.9°C), pH (8.2), dissolved oxygen (4.4 mg/l), ammonia-N (82.15 ug-at-N/l), nitrite-N (0.72 p.g-at-N/1), nitrate-N (76.85 ug-at-N/l) and FV (0.093 ml/1) more than the treatment excepting the nitrate-N and Floe volume. Chlorella sp, Oscilatoria sp, Stephanodiscus sp, Coscinodiscussp, Navicula sp, Amphiprorasp, Nitzschia sp, Chaetoceros sp, Cyclotella sp, Triceratium sp, Cymbella sp, Stentor sp, Paramecium sp, Cyclidium sp, Peranema sp, Petalomonas sp, Rotifer, Nematode or round worm, Chaetonotus sp and Cyclops sp were observed in the biofloc treatment tank water while the control tank water had only Chlorella sp, Coscinodiscus sp and Chaetoceros sp. The maximum SGR in biofloc treatment (138.64) and control (107.41) was in 35tn day. The percentage growth increment of 376.44 in goldfish fry was recorded in the biofloc treatment than the control set of experiments.
机译：在本研究中，研究了生物絮凝技术对金鱼苗的影响。在生物絮凝剂处理系统中记录的金鱼苗水温，pH，溶解氧，氨氮，亚硝酸盐-N，硝酸盐-N和絮凝体积（FV）的平均值为27.3°C，7.9、3.9 mg / l，分别为48.32 ug-at-N / l，0.62 ug-at-N / l，238.08 ug-at-N / l和8.48 ml / 1。金鱼苗育苗期间的对照组记录了水温（28.9°C），pH（8.2），溶解氧（4.4 mg / l），氨氮（82.15 ug-at-N / l）的平均值除硝酸盐氮和浮游植物的体积外，亚硝酸盐-N（0.72 pg-at-N / 1），硝酸盐-N（76.85 ug-at-N / l）和FV（0.093 ml / 1）比处理多。绿藻菌，Oscilatoria菌，​​Stephanodiscus菌，Coscinodiscussp，Navicula菌，Amphiprorasp菌，Nitzschia菌，Chaetoceros菌，Cyclotella菌，Triceratium菌，Cymbella菌，Stentor菌，Paramecium菌，Cyclidium菌，Peranema菌，Petalomonas菌或Rotifer菌在生物絮凝剂处理池水中观察到虫，Chaetonotus sp和Cyclops sp，而对照池水仅含有小球藻，Coscinodiscus和Chaetoceros。生物絮凝处理（138.64）和对照（107.41）的最大SGR在35tn天。与对照实验组相比，在生物絮凝剂处理中记录了金鱼苗中376.44的百分比增长增量。

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