CAJ | 학술논문

研究不同pH对大菱鲆（Scophthalmus maximus）幼鱼生长及一般生化组成的影响。结果发现：不同时间段内，饲料利用率(FCR)总是随环境pH升高而呈上升趋势，特定生长率（SGR）及增重率（WGR）随环境pH升高而呈下降趋势。在不同时间段，pH 8.3与pH 8.8组的FCR均高于其他组，差异有统计学意义（P <0.05），而SGR、WGR均低于其他组，差异有统计学意义（P<0.05）。各组间鱼体水分差异无统计学意义（P>0.05）；脂肪含量总体呈下降趋势，pH 6.3组的脂肪含量高于其他组，差异有统计学意义（P<0.05），pH 6.8至7.3之间时差异不具统计学意义（P >0.05），pH 7.8至8.8时降低，差异有统计学意义（P <0.05）；蛋白含量在pH 6.3至7.3之间时差异无统计学意义（P>0.05），pH 7.8至8.8时降低，差异有统计学意义（P<0.05）；灰分含量在pH 6.3至7.3之间时差异无统计学意义（P >0.05），pH 7.8至8.8时升高，差异有统计学意义（P<0.05）。结果表明，水环境pH在6.3~7.3范围内有利于大菱鲆幼鱼的健康生长。
연구불동pH대대릉평（Scophthalmus maximus）유어생장급일반생화조성적영향。결과발현：불동시간단내，사료이용솔(FCR)총시수배경pH승고이정상승추세，특정생장솔（SGR）급증중솔（WGR）수배경pH승고이정하강추세。재불동시간단，pH 8.3여pH 8.8조적FCR균고우기타조，차이유통계학의의（P <0.05），이SGR、WGR균저우기타조，차이유통계학의의（P<0.05）。각조간어체수분차이무통계학의의（P>0.05）；지방함량총체정하강추세，pH 6.3조적지방함량고우기타조，차이유통계학의의（P<0.05），pH 6.8지7.3지간시차이불구통계학의의（P >0.05），pH 7.8지8.8시강저，차이유통계학의의（P <0.05）；단백함량재pH 6.3지7.3지간시차이무통계학의의（P>0.05），pH 7.8지8.8시강저，차이유통계학의의（P<0.05）；회분함량재pH 6.3지7.3지간시차이무통계학의의（P >0.05），pH 7.8지8.8시승고，차이유통계학의의（P<0.05）。결과표명，수배경pH재6.3~7.3범위내유리우대릉평유어적건강생장。
The variation of growth and common biochemical indices of juvenile turbot (Scophthalmus maximus) under different water pH were studied. The results showed that, in different time periods, the feed consumption ratio (FCR) increased, while the specific growth ratio (SGR) and the weight gain ratio (WGR) decreased with increasing pH. Regarding FCR, the ratios of pH 8.3 and pH 8.8 groups were significantly higher than that of other pH groups (P<0.05), and the SGR and the WGR of pH 8.3 and pH 8.8 groups were significantly lower than those of other pH groups (P<0.05). The moisture did not differ significantly in the six pH group (P>0.05). The crude fat of the whole body had a decreased trend with pH increasing, and the highest level was found at pH 6.3, and had evident differences compared with other pH groups (P<0.05), and no significant differences were found from pH 6.8 to 7.3 (P>0.05), but the content decreased significantly from pH 7.8 to 8.8 (P<0.05). As to the crude protein, no significant differences were observed from pH 6.3 to 7.3 (P>0.05), but the value significantly decreased from pH 7.8 to 8.8 (P<0.05). The content of ash had no significant differences from pH 6.3 to 7.3 (P>0.05), but increased significantly from pH 7.8 to 8.8 (P<0.05). To sum up, the results showed that pH 6.3-7.3 were regarded as the optimum range for the growth of juvenile S. maximus.