Succession of Bacterial Drug Resistance as an Indicator of Antibiotic Application in Aquaculture

以細菌抗藥性之消長作為水產養殖施用抗生素之指標

徐基新(Chi-Hsin Hsu) ； 黃琇琴(Shiow-Chyn Hwang) ； 劉仲康(Jong-Kang Liu)

《臺灣水產學會刊》 19卷1期 (1992/03) Pp. 55-64

https://doi.org/10.29822/JFST.199203.0006

摘要

A 20-day experiment was conducted to evaluate the effects of supplementinga micro-coated diet(MCD)as a substitute for live foods(rotifer,Brachionusplicatilis,and/or brine shrimp,Artemia salina,nauplii)on the growth,survival,and swim bladder inflation of larval silver bream(Sparus sarba).The coatingmaterials of MCD was cholesterol-lecithin.Larvae at a density of 6 fish/L(3,000 fish per 500-liter tank)were fed the following four dietary regimes:100% live foods,50% live foods plus 50% MCD,25% live foods plus 75% MCD,and 100% MCD.Each treatment had two replicates.The best growth(meantotal length,10.09±1.47 mm)was obtained in the larvae fed 50% live foods plus50% MCD,followed by those fed 100% live foods(9.85±1.64 mm)and 25% livefoods plus 75% MCD(9.20±1.74 mm).The larvae fed only MCD showed thelowest growth(5.60±0.64 mm)and their final weight was significantly lower(p＜0.01)than any other treatments.There were significant differenes(p＜0.05)in the survival among treatments.The best survival was also obtained in thelarvae fed 50% live foods plus 50% MCD(37.5%),followed by those fed 100%live foods(20.2%)and 25% live foods plus 75% MCD(10.5%).The larvae fedonly MCD also had the lowest survival(4.9%).Moreover,the swim bladderinflation rate in larvae fed 100% live foods(95.8%)was significant higher(p＜0.05)than those of larvae fed 25% live foods plus 75% MCD(76.3%)and100% MCD(56.1%),but was not significantly different(p＞0.05)from those ofthe larvae fed 50% live foods plus 50% MCD(92.0%).These results indicatethat the MCD as a sole food source is not good enough to sustain a goodgrowth,survival and low swim bladder inflation of larval silver bream,but itcan substitute up to 50% of live foods without jeopardize fish growth andsurvival.

關鍵字

細菌抗藥性 ； 氯黴素 ； 羥四環素 ； 砂蝦 ； 吳郭魚

並列摘要

A 20-day experiment was conducted to evaluate the effects of supplementinga micro-coated diet(MCD)as a substitute for live foods(rotifer,Brachionusplicatilis,and/or brine shrimp,Artemia salina,nauplii)on the growth,survival,and swim bladder inflation of larval silver bream(Sparus sarba).The coatingmaterials of MCD was cholesterol-lecithin.Larvae at a density of 6 fish/L(3,000 fish per 500-liter tank)were fed the following four dietary regimes:100% live foods,50% live foods plus 50% MCD,25% live foods plus 75% MCD,and 100% MCD.Each treatment had two replicates.The best growth(meantotal length,10.09±1.47 mm)was obtained in the larvae fed 50% live foods plus50% MCD,followed by those fed 100% live foods(9.85±1.64 mm)and 25% livefoods plus 75% MCD(9.20±1.74 mm).The larvae fed only MCD showed thelowest growth(5.60±0.64 mm)and their final weight was significantly lower(p＜0.01)than any other treatments.There were significant differenes(p＜0.05)in the survival among treatments.The best survival was also obtained in thelarvae fed 50% live foods plus 50% MCD(37.5%),followed by those fed 100%live foods(20.2%)and 25% live foods plus 75% MCD(10.5%).The larvae fedonly MCD also had the lowest survival(4.9%).Moreover,the swim bladderinflation rate in larvae fed 100% live foods(95.8%)was significant higher(p＜0.05)than those of larvae fed 25% live foods plus 75% MCD(76.3%)and100% MCD(56.1%),but was not significantly different(p＞0.05)from those ofthe larvae fed 50% live foods plus 50% MCD(92.0%).These results indicatethat the MCD as a sole food source is not good enough to sustain a goodgrowth,survival and low swim bladder inflation of larval silver bream,but itcan substitute up to 50% of live foods without jeopardize fish growth andsurvival.

並列關鍵字

Bacterial Drugresistance ； Chloramphenicol ； Oxyteracycline ； Metapenaeus monoceros ； Tilapia Auria