摘要
于1987年及1988年冬季在长江,珠江,湖北武汉东湖、保安湖、洪湖、武黄湖,安徽太平湖,广东仙溪水库采集了草鱼、团头鲂和长春鳊,共328尾,测定了鱼体生化成分。结果表明:1.在同一水域、同一季节收集三种鱼的系列样品,鱼体的水分、蛋白质、脂肪的含量和能值与鱼体重关系显著,三种鱼体的灰分和无氮浸出物的含量与体重无明显关系;2.不同水域的三种鱼,湖泊鱼体的含脂量、能值、能量与蛋白质的比值均高于江中的同种、同龄体长接近的鱼,水分含量则低于江中的鱼,蛋白质、灰分和无氮浸出物差异不大;3.三种鱼的蛋白质均含有常见的17种氨基酸。
Measurements were made on the contents of water, protein, amino acids, fat, ash, nitrogen-free extracts and energy in 328 individuals of Ctenopharyngodon ide-llus, Megalobrama amblycephala and Parabramis pekinensis from eight waters.1.Significant correlations existed between body weight (W, g) and the contents of water (Ym., %), protein (Yp., %), fat (Yf., %) and energy [Yn.w., kJ/(g), wet weight)]. Their relationships were:for C. idellus measuring 31.50-55.50 cm and weighing 510.00-3l00.00g: Ym. = 156.179W-0.116 r = -0.937, n = 23 Yp. = 3.939W0.208 r = 0.924, n = 23Yf. = 0.239W0.511 r - 0.956, n = 23Yn.w. = 0.690W0.340 r = 0.978, n = 23Ye.d. - 5.000W0.083 r =0.905, n = 23 for M. amblycephala measuring 13.44-32.91 cm and weighing 50.00-698.00g:Ym. = 93.317W-0.041 r = 0.979, n = 18Yp. = 9.309W0.011 r = 0.904, n = 18Yf. = 0.066W0.583 r = 0.818, n = 18Yn.w. - 1.778W0.188 r = 0.940, n = 18Ye.d. = 13.962W0.063 r = 0.950, n = 18 for P. pekinensis measuring 16.00-38.00 cm and weighing 125.60-1308.40g:Ym. = 100.083W-0.064 r = -0.981, n = 12Yp. - 11.280W0.073 r = 0.874, n = 12Yf. = 1.198W0.311 r = 0.979, n = 12Yn.w. =2.699W0.171 r = 0.990, n = 12Ye.d. = 19.400W0.035 r = 0.920, n = 12There was no apparent relationship between body weight and the contents of ash and nitrogen-free extracts in the three fishes. The ratio of energy to protein content increased with body weight in the three species.2. For fish of the same age and length, the contents of fat and energy, and the energy/protein ratio were higher, and the water content was lower in the samples from lakes than in those from rivers, whereas there was no apparent difference in the contents of protein, ash and nitrogen-free extracts.3. Seventeen common amino acids and nine essential amino acids for human needs were found in the proteins of the three fishes (no analysis was made for tryptophane). The average amino acid contents were 134.11±18.98 mg/g, 149.62±13.60 mg/g and 167.26±24.07 mg/g respectively in C. idellus, M. amblycephalus and P. pekinensis; the percentages of essential amino acids in total amino acids were 45.48±2.07%, 44.65±2.01% and 44.95±3.56% respectively. The contents of glutamic acid, asparagine, glycine and lysine were high, and those of tyrosine, me- , thionine and histidine were low.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1992年第2期193-205,共13页
Oceanologia Et Limnologia Sinica
基金
国家自然科学基金 项目编号:3860589
关键词
草鱼
团头鲂
长春鳊
生化成分
能值
Ctenopharyngodon idellus, Magalobrama amblycephala, Parabr-amis pekinensis, Chemical composition, Energy content.
