3个品种鸡的蛋品质比较研究

Comparative Study of Egg Quality among Three Breeds of Chicken

随机选取43周龄的拉萨白鸡鸡蛋、藏鸡鸡蛋和白来航鸡鸡蛋各30枚,进行蛋品质测定。结果表明,3个品种鸡的蛋品质存在差异,除蛋比重差异不显著(P>0.05)外,拉萨白鸡鸡蛋、白来航鸡鸡蛋与藏鸡鸡蛋的蛋重、蛋壳颜色、气室直径、蛋壳百分率、蛋壳强度、蛋黄重量、蛋壳厚度均存在极显著差异(P<0.01);拉萨白鸡鸡蛋、藏鸡鸡蛋与白来航鸡鸡蛋的蛋形指数存在极显著差异(P<0.01);拉萨白鸡鸡蛋与藏鸡鸡蛋、白来航鸡鸡蛋的蛋白高度、哈氏单位存在极显著差异(P<0.01);蛋白重量、蛋黄比色在3个品种鸡的鸡蛋中存在极显著差异(P<0.01);拉萨白鸡鸡蛋与藏鸡鸡蛋、白来航鸡鸡蛋的蛋白百分率存在显著差异(P<0.05);3个品种鸡的蛋壳重量和蛋黄百分率相互表现出显著或极显著差异(P<0.05或P<0.01);拉萨白鸡鸡蛋、白来航鸡鸡蛋与藏鸡鸡蛋的血肉斑存在显著差异(P<0.05)。综合来看,拉萨白鸡的蛋品质最佳,具有良好的市场前景,应加大对拉萨白鸡的品种培育力度。

30 eggs were randomly selected from three breeds of 43-week-old chicken（Lhasa white chicken, Tibetan chicken, and White Leghorn） to determine their quality. The results show that there were certain differences between various breeds of chicken in the quality of eggs. Except for the difference in the proportion of eggs was not significant（P〈0.05）, there were extremely significant differences between Lhasa white chicken eggs（or White Leghorn eggs） and Tibetan Chicken eggs in egg weight,eggshell color, egg air diameter, eggshell proportion, eggshell strength, yolk weight and eggshell thickness（P〈0.01）. There were extremely significant differences between Lhasa white chicken eggs（or Tibetan Chicken eggs） and White Leghorn eggs in the index of egg shape（P〈0.01）. There were extremely significant differences between Lhasa white chicken eggs and Tibetan Chicken eggs（or White Leghorn eggs） in egg albumen height and haugh unit（P〈0.01）. There were extremely significantly differences between various breeds of chicken in the egg albumen weight, yolk weight proportion and yolk color（P〈0.01）. There were significant differences between Lhasa white chicken eggs and Tibetan Chicken eggs（or White Leghorn eggs） in egg albumen proportion（P〈0.05）. There were significant（P〈0.05） or extremely significant differences（P〈0.01） between three breeds of chicken in eggshell weight. There were significant differences between Lhasa white chicken eggs（or White Leghorn eggs） and Tibetan Chicken eggs in blood pot and meat spot（P〈0.05）. In a word, Lhasa white chicken eggs is the best quality and have good market prospect, so it is needed to strengthen the breeding of Lhasa white chicken.