Çam Mustafa, Kaya Zahit Kutalmış, Güler Serdar, Harman Halil, Kırıkçı Kemal
Department of Animal Science, Faculty of Veterinary Medicine, Selcuk University, Konya 42250, Turkey.
Bahri Dagdas International Agricultural Research Institute, University College Dublin, Konya 42020, Turkey.
J Anim Sci Technol. 2022 Mar;64(2):365-379. doi: 10.5187/jast.2022.e9. Epub 2022 Mar 31.
The present study was conducted with the aim of investigating the effect of storage length, turning frequency and egg position on internal quality traits of chukar eggs obtained from 56-week-old chukar partridges under the same nutrition and management conditions. A total of 720 eggs were collected and assigned to 36 subgroups according to storage length (7, 14, 21, and 28 d), turning frequency (0, 1, and 24 per day) and egg position (pointed end up, blunt end up and horizontal). As a result of the study, almost all the internal quality traits of chukar eggs were negatively affected by lengthening of storage period especially 21 days and longer ( < 0.001). Internal egg quality traits weren't statistically affected by turning frequency except yolk index ( < 0.01). An improvement was observed in Haugh unit, albumen index and heigh of eggs stored with pointed end up ( < 0.001). Some significant interactions occurred among all internal egg quality traits which were mostly dependent on the eggs stored horizontally, extended storage time more than 21 days and egg turning during storage. The results and interactions showed that internal quality traits would be preserved well for the eggs stored less than 21 days with the position of pointed end up independent of turning. If the storage period was to exceed 21 days, the eggs should be positioned horizontally and turning should be applied to preserve the quality of chukar eggs.
本研究旨在探讨在相同营养和管理条件下，储存时长、翻转频率和蛋的摆放位置对56周龄石鸡所产蛋的内部品质特征的影响。总共收集了720枚蛋，并根据储存时长（7、14、21和28天）、翻转频率（每天0次、1次和24次）和蛋的摆放位置（尖端向上、钝端向上和水平放置）分为36个亚组。研究结果表明，石鸡蛋的几乎所有内部品质特征都受到储存期延长的负面影响，尤其是21天及更长时间（<0.001）。除了蛋黄指数（<0.01）外，蛋的内部品质特征在统计学上不受翻转频率的影响。观察到尖端向上储存的蛋在哈夫单位、蛋白指数和蛋高方面有所改善（<0.001）。所有蛋的内部品质特征之间存在一些显著的相互作用，这些相互作用大多取决于水平放置的蛋、超过21天的延长储存时间以及储存期间的蛋翻转。结果和相互作用表明，对于储存时间少于21天且尖端向上放置的蛋，无论是否翻转，其内部品质特征都能得到很好的保持。如果储存期超过21天，蛋应水平放置并进行翻转以保持石鸡蛋的品质。
