鸭血浆激素和脂质与瘦肉率和脂肪率关系的研究

本文研究了 Z-1系、Z-1×Z-2杂交一代和肖家河鸭3、7、8周龄血浆睾酮、甲状腺素(T_4)、三碘甲腺原氨酸(T_3)、总甘油三酯和总胆固醇(T-C)含量以及三个周龄中采血测定的各项指标平均值(Mean)与8周龄(市售周龄)屠宰时胴体瘦肉率和脂肪率以及其它胴体性状的相关关系。7周龄血浆睾酮含量(Z-1系和杂交鸭)以及 Mean睾酮含量(Z-1系)与瘦肉率间呈显著正相关;3周龄以及 Mean 甘油三酯含量(杂交鸭)与瘦肉率呈显著负相关;7周龄血浆 T-C 以及 Mean T-C 与瘦肉率呈显著正相关。3、7周龄血浆睾酮含量与脂肪率呈显著负相关;7、8周龄以及 Mean 甘油三酯含量与脂肪率间呈显著正相关;8周龄和 Mean T-C 与脂肪率呈显著负相关。本试验说明血浆激素和生化物质含量与瘦肉率和脂肪率的相关系数较低而且不稳定;血浆甘油三酯含量有可能做为预测瘦肉率和脂肪率的指标。

A PRELIMINARY STUDY ON THE RELATION SHIP BETWEEN PLASMA HORMONES OR LIPIDS AND PERCENT CARCASS LEAN MEAT AND FAT

1.The plasma testosterone,thyroxine,triiodothyronine,triglycerides and total cholesterol were measured in three groups of PeKin ducks at 3,7,8 weeks of age.The relationships between these parameters and percent carcass lean meat and fat were studied. 2.Plasma testosterone concentrations at 7 weeks of age and the mean value of the three ages were positively correlated with percent ca- rcass lean meat in two groups and negatively correlated with perc- ent carcass fat at 3 and 7 weeks of age. 3.Plasma triglyce...