The table eggs and their quality in small-scale breeding
Keywords:table egg, egg shell, demange, soiling, age of laying hen
The purpose this study was to investigate quality of the table eggs, their damage and soiling in various age of the laying hens (47-62 weeks) during the second phase of the laying cycle. The object of the research was table eggs, egg white, egg shell, damage and soiling of the egg shell. The eggs were of the final laying hybrid ISA Brown reared in the non-cage system with deep litter and free range at small-scale breeding. In the breeding system with free range at small-scale conditions were secured requirements for laying hens in accordance with welfare principles. The eggs were collected each day at 4:00 pm. Weights of egg and egg shell samples of were measured on scales type KERN 440-35N. A white weight was calculated. Damage and soiling of eggs were investigated under the desk lamp lighting up to 100 W bulb. Statistical evaluation of the results was carried out in the program system SAS. From the existing conclusions of the various scientific and professional published works, it is known that both quality and safety are interrelated. In many works are the risk factors referred together as the quality standards. We found an important fact in assessing the trend of values of the egg shell weight, depending on the age of laying hens. Based on this fact, it can be assumed that the values of egg shell weight were not directly related to egg weight and egg white weight. It follows that the egg shell weight must be assessed comprehensively, and account must be taken of other factors. For the characteristics of the deformed egg shape has been one pc, representing 3.33% of the samples taken for analysis of eggs at 53 weeks of age of the total sampled eggs. In the following 56 weeks of age hens laying eggs there was not a deformed shape. The next subsequent sampling 59 weeks of age laying hens were recorded two pcs of eggs with deformed shape, i.e. 6.67%. At the last sampling of eggs at age 62 weeks, the number of eggs with deformed shape increased to three pcs, representing 10.0% of the sampled eggs for analysis. The sediments on the shell eggs were observed as variable ridge shapes of the shell matter. At the first sampling of eggs at age 47 weeks were found 2 pcs of this defect, representing 6.67% of the sampled eggs. The ridges on the egg shell belong to deviations of the natural shell associated with its texture. These defects of egg shell frequently occur depending on the age of laying hens but can also be caused by other factors. In our experiment was studied mainly the age factor of laying hens. It was interested from aspect of clarifying the relation between ridges on the egg shell and weight of the egg, white, egg, respectively. The results of investigated ridges on the egg shell showed that there occurred in every age of laying hens. Their highest number was recorded at age 59 and 62 weeks (5 pcs, i.e. 16.67% of the 30 egg samples). After 59 weeks of age was found also reduce the weight of the white and shell and at age 62 weeks of age was reduced egg shell weight. Egg production with calcareous sediments on the shell is probably hereditary. Currently, the consumer prefers the consumption of eggs with brown shell. Egg shell color is determined primarily by genetics of laying hens. The results of our experiments have shown that the occurrence of the dots on egg shell had a shade darker brown colour or bright dots, especially on the ends of the egg. The occurrence of dotted eggs was recorded in each assessed age of laying hens (5 - 7 pcs, i.e. 16.67 to 23.33%), while in the last, evaluated 62 weeks of age even up to 9 pcs. These dots and their occurrence are related to the intensity of pigment deposition in the shell cuticle. The process of distribution of pigment in egg shell is the same as is formed by packing egg shell and therefore the cuticle. With the increasing age of laying hens reduces the intensity of pigment deposition in the egg shell and increases of egg surface area, of the egg shell area, to which the pigment is stored. This fact is confirmed by our results especially at week 62 of age, when occurrence of pigment dots was the highest on the shell and also these eggs had the highest average weight.
Abdullah, A. R., Ojedapo, L. O., Adedeji, T. A., Olayeni, T. B., Adedeji, O. S. 2003. Influence of hens age on egg quality parameters in Bovans Nera black layer strain. In Proceedings of the 28th Annual Conferences of the Nigerian Society for Animal Producton. Cross Rivers State: University of Calabar, p. 103-103.
Abrahamsson, P., Tauson, R. 1995. Aviary systems and conventional cages for laying hens. Acta agriculturæ Scandinavica, vol. 45, no. 3, p. 191-203. [cit. 2015-08-24]. Available at: http://www.tandfonline.com/doi/abs/10.1080/09064709509415851
Angelovičová, M., Alfaig, E., Král, M., Tkáčová, J. 2013. the effect of the probiotics bacillus subtilis (PB6) on the selected indicators of the table eggs quality, fat and cholesterol. Potravinarstvo, vol. 7, no. 1, p. 80-84. https://doi.org/10.5219/271
Angelovičová, M, Polačková, D. 2015. Assessment of welfare and egg production of laying hens Moravia SSL in small-scale breeding. Potravinarstvo, vol. 9, no. 1, p. 365-374. https://doi.org/10.5219/514
Awosanya, B., Joseph, J. K., Olaosebikan, O. D. 1998. The effect of age of bird on shell quality and component yield of eggs. Nigerian Journal of Animal Production, vol. 25, p. 68-70.
Butcher, G. D., Miles, R. D. 2003. Factors causing poor pigmentation of brown shelled eggs. Florida : University of Florida [online]. [cit. 2015-08-24]. Available at: http://edis.ifas.ufl.edu/pdffiles/VM/VM04700.pdf.
Carnarius, K. M., Conrad, K. M., Mast, M. G., Macneil, J. H. 1996. Relationship of eggshell ultrastructure and shell strength to the soundness of shell eggs. Poultry Science, vol. 75, no. 5, p. 656-663. https://doi.org/10.3382/ps.0750656
Castilla, A. M., Herrel, A., Díaz, G., Francesch, A. 2007. Developmental stage affects eggshell breaking strength in two ground-nesting birds: the partridge (Alectoris rufa) and the quail (Coturnix japonica). Journal of Experimental, vol. 307A, no. 8, p. 471-477. https://doi.org/10.1002/jez.400
Castilla, A. M., Martínez de Aragón, J., Herrel, A., Møller, S. 2009a. Eggshell thickness variation in red-legged partridge (Alectoris rufa) from Spain. The Wilson Journal of Ornithology, vol. 121, 2009a, p. 167-170. https://doi.org/10.1676/08-024.1
Castilla, A. M., Herrel, A., Van Dongen, S., Furio, N., Negro, J. 2009b. Determinants of egg shell strength in endangered raptors. Journal of Experimental Zoology, vol. 311A, 2009b, p. 303-311. https://doi.org/10.1002/jez.532 PMid:19267399
Chukwuka, O. K., Okoli, N. J., Okeudo, A., Udedibie, B. I., Ogbuewu, I. P., Aladi, N. O., Iheshiulor, O. O. M., Omede, A. A. 2011. Egg Quality Defects in Poultry Management and Food Safety. Asian Journal of Agricultural Research, vol. 5,
no. 1, p. 1-16. https://doi.org/10.3923/ajar.2011.1.16
Council Directive 1999/74/EC on 19 July 1999 laying down minimum standards for the protection of laying hens. Off. Journal European Communities L203, p. 53-57.
Council Regulation (EC) No. 1028/2006 on marketing standards for eggs. Official Journal of the European Union L 186, 7 July 2006, p. 1-5.
Coutts, J. A.,Wilson, G. C. 1990. Egg Quality Handbook. Brisbane : Department of Primary Industries. 56 p. ISBN 10: 0724232222.
De Reu, K., Grijspeerdt, K., Heyndrickx, M., Zoons, J., De Baere, K., Uyttendaele, M., Debevere, J., Herman, L. 2005. Bacterial eggshell contamination in conventional cages, furnished cages and aviary housing systems. British Poultry Science, vol. 46, no. 2, p. 149-155. https://doi.org/10.1080/00071660500065359 PMid:15957434
EPF and NZFSA, 2002. Egg producers federation of New Zealand (Inc) code of practice (Includes Requirements for Risk Management Programs) [online]. [cit. 2015-08-24]. Available at: http://www.nzfsa.govt.nz/consultation/egg-cop/discussion-paper/egg-cop-ch1.pdf.
Commission Regulation (EC) No 2295/2003 of 23 December 2003 introducing detailed rules for implementing Council Regulation (EEC) No 1907/90 on certain marketing standards for eggs. Official Journal of the European Union L 340, 24 December 2003, p. 16-34.
Fairfull, R. W., Gowe, R. S. 1990. Genetics of Egg Production in Chickens. In Crawford, R. D.: Poultry Breeding and Genetics. New York : Elsevier., vol. 70, p. 963-969.
Falk, K., Mřller, S., Mattox, W. 2006. A long-term increase in eggshell thickness of Greenlandic peregrine falcons Falco peregrinus tundrius. Science of the Total Environment, vol. 355, p. 127-134. https://doi.org/10.1016/j.scitotenv.2005.02.024 PMid:15885749
Gerber, N. 2009. Factors affecting egg quality in the commercial laying hen: A review. [online]. [cit. 2013-11-28]. Available at: http://eggfarmers.org.nz/eggfarmers/wp-content/uploads/2012/04/factors_affecting_egg_quality.pdf
Hunton, P. 1995. Understanding the architecture of the egg-shell. World's Poultry Science Journal, vol. 51, no. 2, p. 141-147. https://doi.org/10.1079/WPS19950009
Jacob, J. P., Miles, R. D., Mather, F. B. 2000. Egg quality. Florida : University of Florida, 11 p. (Bulletin, PS24).
Khan, M. K. I., Khatun, M. J., Kibria, A. K. M. G. 2004. Study the quality of eggs of different genotypes of chickens under semi-scavenging system at Bangladesh. Pakistan Journal of Biological Sciences, vol. 7, no. 12, p. 2163-2166. https://doi.org/10.3923/pjbs.2004.2163.2166
Mallet, S., Guesdon, V., Ahmed, A. M. H., Nys, Y. 2006. Comparison of eggshell hygiene in two housing systems: Standard and furnished cages. British Poultry Science, vol. 47, no. 1, p. 30-35. https://doi.org/10.1080/00071660500468132 PMid:16546794
Massaro, M., Davis, L. S. 2004. The influence of laying date and maternal age on eggshell thickness and pore density in yellow-eyed penguins. Condor, vol. 106, no. 3, p. 496-505. https://doi.org/10.1650/7395
Massaro, M., Davis, L. S. 2005. Differences in egg size, shell thickness, pore density, pore diameter and water vapour conductance between first and second eggs of snares penguins Eudyptes robustus and their influence on hatching asynchrony. Ibis, vol. 147, no. 2, p. 251-258. https://doi.org/10.1111/j.1474-919x.2005.00379.x
Nascimento, V. P., Cranstoun, S., Solomon, S. E. 1992. Relationship between shell structure and movement of Salmonella enteritidis across the eggshell wall. British Poultry Science, vol. 33, no. 1, p. 37-48. https://doi.org/10.1080/00071669208417442 PMid:1571806
Rajkumar, U., Sharma, R. P., Rajaravindra, K. S., Niranjan, M., Reddy, B. L. N., Bhattacharya, T. K., Chatterjee, R. N. 2009. Effect of genotype and age on egg quality traits in naked neck chicken under tropical climate from India. International Journal Poultry Science, vol. 8, no. 12, p. 1151-1155. https://doi.org/10.3923/ijps.2009.1151.1155
Regulation of the Slovak Republic dated 11. 12. 2002 laying down minimum standards for the protection of laying hens to low no. 736/2002.
Regulation of the Slovak Government of 9. 7. 2003 on the protection of animals kept for farming purposes as amended low no. 368/2007 coll. lows.
Rodenburg, T. B., Tuyttens, F., De Reu, K., Herman, L., Zoons, J., Sonck, B. 2005. Welfare, health and hygiene of laying hens housed in furnished cages and in alternative housing systems. Journal of Applied Animal Welfare Science, vol. 8, no. 3, p. 211-226. https://doi.org/10.1207/s15327604jaws0803_5 PMid:16468949
Rodenburg, B., Tuyttens, F., De Reu, K., Herman, L., Zoons, J., Sonck, B. 2008. Welfare assessment of laying hens in furnished cages and non-cage systems: An on-farm comparison. Animal Welfare, vol. 17, no. 4, p. 355-361.
Sauter, E. A., C. F. Petersen, 1974. The effect of egg shell quality on penetration by various salmonellae. Poultry Sciences, vol. 53, p. 2159-2162. https://doi.org/10.3382/ps.0532159 PMid:4618346
Tauson, R., Wahlström, A., Abrahamsson, P. 1999. Effect of two floor housing systems and cages on health, production, and fear response in layers. Journal of Applied Poultry Research, vol. 8, no. 2, 1999, p. 152-159. https://doi.org/10.1093/japr/8.2.152
Tauson, R. 2002. Furnished cages and aviaries: Production and health. World's Poultry Science Journal, vol. 58, no. 01, p. 49-63.
USDA Food Safety and Inspection Service. 2013. Egg Products and Food Safety. [online]. [cit. 2013-11-28]. Available at: http://www.fsis.usda.gov/wps/portal/fsis/topics/food-safety-education/get-answers/food-safety-fact-sheets/egg-products-preparation/egg-products-and-food-safety/ct_index
Wall, H., Tauson, R. 2002. Egg quality in furnished cages for laying hens. Effects of cracked reduction measures and hybrid. Poultry Science, vol. 81, no. 3, p. 340-348. https://doi.org/10.1093/ps/81.3.340 PMid:11902409
Wall, H., Tauson, R., Elwinger, K. 2002. Effects of nest design, passages and hybrid on use of nest and production performance of layers in furnished cages. Poultry Science, vol. 81, no. 3, p. 333-339. https://doi.org/10.1093/ps/81.3.333 PMid:11902408
Yörük, M. A., Gul, M., Hayirli, A., Karaoglu, M. 2004. Laying performance and egg quality of hens supplemented with sodium bicarbonate during the late laying period. International Journal Poultry Sciences, vol. 3, no. 4, p. 272-278. https://doi.org/10.3923/ijps.2004.272.278
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