女子花样滑冰运动员体重监控和营养干预

花样滑冰是技巧与艺术性结合的冰上项目,优美的形体是影响裁判员评分的重要因素,运动员长期面临控体重的任务。在保障训练效果的前提下,以体重、体脂百分比和生理生化指标监控为基础,科学合理控体重。花样滑冰运动员每日膳食摄入较少,通过科学搭配,保障蛋白质、碳水化合物、脂类、维生素、无机盐和水的合理摄入,帮助运动员科学控制体重。     

光唇鱼肌肉营养成分与品质的评价

对光唇鱼（Acrossocheilus fasciatus）的合肉率和肌肉营养成分进行分析,结果表明光唇鱼的含肉率平均为59．59±2．81％,肌肉（新鲜）的水分含量77．69±1．02％,粗蛋白含量19．21±0．02％,粗脂肪含量0．54±0．05％,灰分1．01±0．03％;脂肪酸为12种,饱和脂肪酸（SFA）4种,不饱和脂肪酸（UFA）8种,其中单不饱和脂肪酸（MUFA）4种,多不饱和脂肪酸（PUFA）4种;肌肉中含有17种氨基酸,总量为69．28％（干重百分比）,7种人体必需氨基酸总量是28．98％,4种鲜味氨基酸含量为28．01％,必需氨基酸指数（EAAI）是59．56：测得矿物元素8种。     

不同类型玉米品种饲用特性研究

比较研究了农大108、香糯、中甜9号、豫玉22四个玉米品种的饲用特性.结果表明:乳熟期豫玉22鲜物质产量最高,完熟期农大108鲜物质产量最高;乳熟期和完熟期中甜9号干物质产量最高;豫玉22的籽粒产量最高.不同类型玉米品种饲用特性的差异主要是由于其生物学特性的不同所致.     

Relationships between changes of kernel nutritive components and seed vigor during development stages of F_1 seeds of sh_2 sweet corn

The changes of kernel nutritive components and seed vigor in F1 seeds of sh2 sweet corn during seed development stage were investigated and the relationships between them were analyzed by time series regression (TSR) analysis. The results show that total soluble sugar and reducing sugar contents gradually declined, while starch and soluble protein contents increased throughout the seed development stages. Germination percentage, energy of germination, germination index and vigor index gradually increased along with seed development and reached the highest levels at 38 d aider pollination (DAP). The TSR showed that, during 14 to 42 DAP, total soluble sugar content was independent of the vigor parameters determined in present experiment, while the reducing sugar content had a significant effect on seed vigor. TSR equations between seed reducing sugar and seed vigor were also developed. There were negative correlations between the seed reducing sugar content and the germination percentage, energy of germination, germination index and vigor index, respectively. It is suggested that the seed germination, energy of germination, germination index and vigor index could be predicted by the content of reducing sugar in sweet corn seeds during seed development stages.