河北渔业
河北漁業
하북어업
Hebei Fisheries
2015年
10期
13-17,71
,共6页
董纯%唐会元%潘磊%杨志%谢建军%乔晔
董純%唐會元%潘磊%楊誌%謝建軍%喬曄
동순%당회원%반뢰%양지%사건군%교엽
体长%含水量%化学组成%能量密度%圆口铜鱼
體長%含水量%化學組成%能量密度%圓口銅魚
체장%함수량%화학조성%능량밀도%원구동어
Body length%Water content%Chemical composition%Energy density%Coreius guichenoti
2014年11月-12月在金沙江收集体长(L)150~290mm,体重(W)64.1~422.7g的圆口铜鱼23尾,根据体长将其分为4组,分别测定其化学组成,估算其能量密度。结果显示:圆口铜鱼幼鱼含水量(WAT)、蛋白质含量(PRO)、脂肪含量(FAT)、灰分含量(ASH)和能量密度(E)占其湿重的百分比分别为65.87%~69.99%,15.65%~18.17%,9.95%~14.07%,2.69%~3.80%,7.23~10.06kJ/g。经统计分析,圆口铜鱼幼鱼含水量与其蛋白质含量、脂肪含量、灰分含量和能量密度均存在显著的负线性关系。另外,圆口铜鱼幼鱼体长与其含水量存在显著的负线性关系,而与蛋白质含量、脂肪含量、灰分含量和能量密度均存在显著的正线性关系。结果表明,可以用圆口铜鱼幼鱼的含水量和体长估测其化学组成和能量密度,圆口铜鱼高脂肪含量与其长距离繁殖洄游密切相关。
2014年11月-12月在金沙江收集體長(L)150~290mm,體重(W)64.1~422.7g的圓口銅魚23尾,根據體長將其分為4組,分彆測定其化學組成,估算其能量密度。結果顯示:圓口銅魚幼魚含水量(WAT)、蛋白質含量(PRO)、脂肪含量(FAT)、灰分含量(ASH)和能量密度(E)佔其濕重的百分比分彆為65.87%~69.99%,15.65%~18.17%,9.95%~14.07%,2.69%~3.80%,7.23~10.06kJ/g。經統計分析,圓口銅魚幼魚含水量與其蛋白質含量、脂肪含量、灰分含量和能量密度均存在顯著的負線性關繫。另外,圓口銅魚幼魚體長與其含水量存在顯著的負線性關繫,而與蛋白質含量、脂肪含量、灰分含量和能量密度均存在顯著的正線性關繫。結果錶明,可以用圓口銅魚幼魚的含水量和體長估測其化學組成和能量密度,圓口銅魚高脂肪含量與其長距離繁殖洄遊密切相關。
2014년11월-12월재금사강수집체장(L)150~290mm,체중(W)64.1~422.7g적원구동어23미,근거체장장기분위4조,분별측정기화학조성,고산기능량밀도。결과현시:원구동어유어함수량(WAT)、단백질함량(PRO)、지방함량(FAT)、회분함량(ASH)화능량밀도(E)점기습중적백분비분별위65.87%~69.99%,15.65%~18.17%,9.95%~14.07%,2.69%~3.80%,7.23~10.06kJ/g。경통계분석,원구동어유어함수량여기단백질함량、지방함량、회분함량화능량밀도균존재현저적부선성관계。령외,원구동어유어체장여기함수량존재현저적부선성관계,이여단백질함량、지방함량、회분함량화능량밀도균존재현저적정선성관계。결과표명,가이용원구동어유어적함수량화체장고측기화학조성화능량밀도,원구동어고지방함량여기장거리번식회유밀절상관。
To investigate the changes trend of chemical composition with the increasing body size in juvenile Coreius guichenoti ,23 specimens whose body length (L) and body weight (W) ranged 150~290 mm and 64 .1~422 .7 g respectively were collected from Jinsha River in November~December ,2014 .The fish were divided into 4 groups according to the body length .Their chemical compositions were measured and energy density was esti‐mated .The results showed that the contents of water (WAT ) ,protein (PRO) ,lipid (FAT ) and ash (ASH) of fish accounted for the wet weight 65 .87% ~69 .99% ,15 .65% ~18 .17% ,9 .95% ~14 .07% and 2 .69% ~3 . 80% ,respectively .The energy density (E) ranged 7 .23~10 .06 KJ/g .The statistical analysis displayed that PRO ,FAT ,ASH and E were in a significant negative linear correlation with WAT .In addition ,WAT was in a significant negative linear correlation with the body length .However ,PRO ,FAT ,ASH and E were in a signifi‐cant positive linear correlation with the body length .The results suggested that the chemical composition and the content of energy density of Coreius guichenoti can be estimated by the water content and the body length .The fish in a high lipid is supposed to be closely correlated with its long distance migratory breeding .