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The aim of the study was determination of changes in quality traits of eggs depending on storage conditions. The study material were 360 table eggs laid by 52 weeks of age laying hens, Tetra SL, being in their peak of egg production. The eggs were stored at a temperature of 4 and 23°C. Evaluation of egg quality was carried out on the 1st, 7th, 14th, 21st, and 28th day, analyzing 40 eggs from each group. It was found that storage conditions had a significant effect on the loss of egg weight and thick albumen as well as on an increase in its pH value. Temperature of 23°C had a greater effect on the dynamics of these changes, while eggs stored at a temperature of 4°C even after 28-day storage were characterized by a good quality and freshness. Long-term storage had no significant effect on the shell weight, its thickness and elastic deformation and resistance to crushing
Along with the storage time, in the egg content there occur changes based of which their quality and condition of egg freshness may be determined. The aim of the study was determination of the effect of 7-week storage period at a temperature of 4°C on the quality of Japanese quail eggs. The eggs were analyzed at one-week intervals to determine their morphological composition. No statistically significant differences were observed between particular dates of evaluation within the range of the egg weight and its proportional loss, which in the 7th week was 2.78%. No statistically significant differences were observed in the weight of yolk and albumen in total. The amount of albumen did not change, while the Haugh units ranged from 91.4 in the 1st week to 87.2 in the 7th week of storage. These results show that quail eggs are characterized by a long period of retaining freshness.
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