González Ariza Antonio, Navas González Francisco Javier, Arando Arbulu Ander, León Jurado José Manuel, Barba Capote Cecilio José, Camacho Vallejo María Esperanza
Department of Genetics, Faculty of Veterinary Sciences, University of Córdoba, 14071 Córdoba, Spain.
Centro Agropecuario Provincial de Córdoba, Diputación Provincial de Córdoba, 14071 Córdoba, Spain.
Animals (Basel). 2019 Apr 9;9(4):153. doi: 10.3390/ani9040153.
The aim of the present study is to characterize the productive capability of Utrerana and to compare the relationships among parameters determining the internal and external quality of the egg, through canonical correlation analysis. A flock of 68 Utrerana hens and a control group of Leghorn hens (n = 17) were housed individually to allow individual identification of eggs and for the assessment of egg quality characteristics. Almost all variables showed differences when both breeds were compared, except for white height, yolk diameter, yolk and yolk pH ( > 0.05). Only minor diameter, white height, yolk, yolk, and shell weight reported significant differences between laying age groups. White height, yolk color, and almost all yolk color coordinates were significantly different ( < 0.05) for period and month. Egg and white weight reached highest significantly different levels for the fourth and fifth time that the hens laid an egg. External quality-related traits are better predictors of internal quality-related traits than vice versa, enabling the implementation of an effective noninvasive method for internal quality determination and egg classification aimed at suiting the needs of consumers.
本研究的目的是通过典型相关分析来描述乌特勒拉纳鸡的生产能力，并比较决定鸡蛋内部和外部品质的参数之间的关系。将68只乌特勒拉纳母鸡和一个对照组的来航鸡（n = 17）单独饲养，以便对鸡蛋进行个体识别并评估鸡蛋品质特征。当比较两个品种时，几乎所有变量都存在差异，但蛋白高度、蛋黄直径、蛋黄和蛋黄pH值除外（> 0.05）。只有短径、蛋白高度、蛋黄、蛋黄和蛋壳重量在产蛋年龄组之间存在显著差异。蛋白高度、蛋黄颜色以及几乎所有蛋黄颜色坐标在产蛋时期和月份之间存在显著差异（< 0.05）。鸡蛋和蛋白重量在母鸡产蛋的第四次和第五次时达到最高显著差异水平。与外部品质相关的性状比与内部品质相关的性状更能有效预测内部品质相关性状，从而能够实施一种有效的非侵入性方法来确定内部品质并进行鸡蛋分类，以满足消费者的需求。
