Department of Animal Science, College of Natural Resources, Royal University of Bhutan, Lobesa, Punakha, Bhutan
Receive Date: 25 December 2012,
Revise Date: 07 April 2013,
Accept Date: 16 April 2013
The aim of the study was to evaluate the effect of storage and temperature on egg physical quality in Hyline chickens line. A total of 150 eggs from College of Natural Resources farm were sampled for the present experiment. About 70 eggs each were stored in home refrigerator (temperature, 7.46±0.23 ˚C; relative humidity, 24.80±0.05%) and room temperature (temperature, 22.98±1.12 ˚C; relative humidity, 48.93±2.50%). The correctness of the conditions was ensured by installing data logger. Egg quality traits monitored included egg weight, egg shape index, specific gravity, egg volume, shell thickness, haugh unit, and yolk index and albumen pH. The results present effects of prolonged storage on the physical qualities significantly (P<0.05). Qualityof eggs rapidly deteriorated when stored in a room temperature compared to those kept in a cold environment. Among the studied egg traits, the pH of albumen seems to be reliable in testing the freshness quality of an egg because of its consistent trend. According to albumen pH information, egg preserved for 10 days under cool conditions remained similar to that of freshly laid eggs, butthe following days seems to be significant (P<0.05). Moreover, the study verified the importance of the correlation coefficient in determining the downgrading of eggs for extended storage.
Anderson K.E., Tharrington J.B., Curtis P.A. and Jones F.T. (2004). Shell characteristics of eggs from historic strains of single comb White Leghorn chickens and the relationships of egg shape to shell strength. Int. J. Poult. Sci. 3(1), 17-19. Biladeau A.M. and Keener K.M. (2009). The effects of edible coatings on chicken egg quality under refrigerated storage. Poult. Sci.88, 1266-1274. Dorji N., Daungjinda M. and Phasuk Y. (2011). Genetic characterization of Thai indigenous chickens compared with commercial lines. Trop. Anim. Health Prod.43, 779-785. FAO. (2003). Egg Marketing. A Guide for the Production and Sale of Eggs. Food and Agriculture Organization. Agricultural Services Bulletin 150. Jones D.R. and Musgrove M.T. (2005). Extended storage on egg quality factors. Poult. Sci. 84, 1774-1777. Livestock Statistics. (2008). Department of Livestock, Ministry of Agriculture and Forests. Thimphu, Bhutan. Available at: http://www.moaf.gov.bt/moaf/?wpfb_dl=114. Accessed Nov. 2012. Livestock Statistics. (2010). Department of Livestock, Ministry of Agriculture and Forests. Thimphu, Bhutan. Available at: http://www.moaf.gov.bt/moaf/?wpfb_dl=493. Accessed Nov. 2012. Mohammed M.D., Abdalsalam Y.I., Kheir A.M., Jin-Yu W. and Hussein M.H. (2005). Comparison of the egg characteristics of different Sudaneseindigenous chicken types. Int. J. Poult. Sci.4(7), 455-457. Monira K.N., Salahuddin M. and Miah G. (2003). Effect of breed and holding period on egg quality characteristics of chicken. Int. J. Poult. Sci. 2(4), 261-263. Mukhopadhyay S., Ukuku D., Phillips J.G. and Juneja V.K. (2012). Survival and growth of Salmonellaenterica and Serovar Enteritidis in membrane-processed liquid egg white with pH, temperature and storage conditions as controlling factors. J. Food Protec. 75(7), 1219-1226. Raji A.O., Aliyu J., Lgwebuike J.U. and Chiroma S. (2009). Effect of storage methods and time on egg quality traits of laying hens in a hot dry climate. J. Agric. Biol. Sci. 4(4), 1-7. Samli H.E., Agma A. and Senkoylu N. (2005). Effects of storage time and temperature on egg quality in old laying hens. J. Appl. Poult. Res. 14, 548-553. Silversides F.G. and Budgell K. (2004). The relationship among measures of egg albumen height, pH and whipping volume. Poult. Sci.83, 1619-1623. Silversides P.G. and Scott T.A. (2001). Effect of storage and layer age on quality of eggs from two lines of hens. Poult. Sci.80, 1240-1245. Sonaiya E.B. and Swan S.E.J. (2004). Small-scale poultry production. FAO. Animal Production and Health Manual. FAO, Rome. Stadelman W.J., Debbie N. and Lynne N. (1995). Egg Science and Technology. CRC Press. Yakubu A., Ogah D.M. and Barde R.E. (2008). Productivity and egg quality characteristics of free range naked neck and normal feathered Nigerian indigenous chickens. Int. J. Poult. Sci. 7(6), 579-585.