EFFECT OF CHICKEN BREED AND STORAGE CONDITIONS OF EGGS ON THEIR QUALITY
Journal Title: Acta Scientiarum Polonorum Zootechnica - Year 2015, Vol 14, Issue 4
Abstract
The aim of the study was to assess the quality of eggs stored in different conditions for 28 days after oviposition. The eggs were produced by two breeds of hens covered by the gene-pool protection programme, and by commercial hybrids. The experiment used eggs from Greenleg Partridge (line Z-11) and Rhode Island White hens (line A-33) and Hy-Line commercial hybrids. Sixty class M eggs were collected from each breed and divided into three groups. Group I contained fresh eggs which were weighed and evaluated for quality on the first day after oviposition. In group II, eggs were stored in a cool room for 28 days at an average temperature of 14°C and humidity of 39–46%. Group III were eggs refrigerated for 28 days at an average temperature of 5.5°C and humidity of 29–36%. Regardless of bird’s genotype, egg weight was found to decrease and egg yolk percentage to increase as a result of storing the eggs for 28 days. Storage of eggs contributed to decreasing the height of thick albumen and Haugh units (HU). Egg storage caused no significant changes in shell breaking strength. The effect of storage on reducing egg quality characteristics was much lower for Hy-Line hens compared to hens from the protected populations: Greenleg Partridge (Z-11) and Rhode Island White (A-33).
Authors and Affiliations
Józefa Krawczyk, Zofia Sokołowicz
Keywords
Related Articles
- EP ID EP352808
- DOI -
- Views 135
- Downloads 0
Comparison of mineral content and physical characteristics of hair in yearling Arctic foxes from different farms
The aim of the study was to analyse the content of minerals and physical properties of hair in the coat of yearling Arctic foxes managed on various farms. Winter hair samples were collected from 86 yearling female blue A...
ASSESSMENT OF EXTERNAL APPEARANCE OF BLACK-MOTLEY COWS
The research was conducted on first-calf heifers of Black-Motley breed of Lviv region and consisted in the assessment of their body conformation by type according to a guide [Instruction. . . 2012]. Results of the linear...
HISTOPATHOLOGICAL CHANGES OF THE PECTORAL MUSCLE IN PHEASANTS (PHASINUS COLCHICUS; PHASINUS C. MONGOLICUS)
The aim of investigation was the frequency of histopathological changes of the m. pectoralis superficialis of game and Mongolian pheasants of different ages. The samples for analyze from pectoral muscle were taken after...
Evaluation of the influence of demographic factors on the success of reintroduction of small herds of European bison
The aim of the study was to determine the optimal size and composition of founding groups to create new herds of European bison. The computer simulations of the development of new herds in a period of 20 years was conduc...
TIME OF LYING IN THE HORSE WITH REGARD TO ITS SEX AND SYSTEM OF MANAGEMENT
The objective of the study was to determine demands for lying in adult horse males and females, as well as in females maintained under various systems. 43 horses were studied in three centres. Time of lying was measured...