大恒优质肉鸡S01、S05、S06、S08四个品系蛋品质的比较研究

种蛋品质是影响种鸡性能的重要因素。本研究对大恒优质肉鸡S01、S05、S06和S08四个品系父母代种蛋的蛋重、蛋形指数、蛋壳强度、蛋壳厚度、蛋白高度、哈氏单位、血肉斑率等蛋品质指标进行了研究分析。结果显示：四个品系在蛋重、蛋形指数、蛋白高度和哈氏单位等指标方面有显著差异（P〈0．05）。S08品系蛋重最大，S05、S06居中，S01最小；S08品系蛋形指数最大，S01、S06居中，S05最小；S05、S06品系蛋白高度、哈氏单位显著优于S01，与S08没有显著差异。蛋壳厚度、蛋壳强度和血肉斑率各品系之间没有差异（P〉0．05）。结果表明大恒优质肉鸡父母代四个品系的蛋品质较好，品系间存在明显差异，可为进一步的品系改良提供很好的素材。

Comparative Study of Egg Quality in four different Strains of Dahen Meat- quality Broilers

Egg quality is key factor to egg quality parameters,including egg weight albumen height, haugh unit and blood meat the performance of broiler breeder. In this study, seven , egg shape index, eggshell strength, eggshell thickness, spots,were measured in four different strains （S01, S05, S06 and S08）parental stock of Dahen quality chicken.The results showed that there were significantly differences for egg weight, egg shape index, albumen height and haugh unit （P〈0.05） in different four strains, while there was no significantly difference for eggshell strength ,eggshell thickness and blood meat spots （P〉0.05）. The egg weight of S05 and S06 is lower than that of S08 and higher than that of S01.The egg shape index of S01 and S06 is lower than that of S08 and higher than that of S05.The albumen height and the haugh unit of S05 and S06 are higher than that of S01, while there was no significant difference for S08. These results indicated that there was significantly difference for egg quality in different strains of Dahen meat-quality breeders,and it provided the basic source for breed improvement.