The effect of production type and age of hens on the major egg components
Kulcsszavak:
egg-type hens, meat-type hens, egg components, yolk to albumen ratioAbsztrakt
The aim of the research was to find out the differences in the major egg components between egg and meat types of hens. Three traditional breeds of egg-type and three traditional breeds of meat-type hens were included into the experiment. The comparison was carried out at six different ages. Eggs from meat-type hens were significantly
(P < 0.05) heavier, albumens, yolks and shells were heavier too while the proportion of yolk and diameter as well as yolk : albumen ratios were higher in comparison to egg-type hens. The proportion of albumen was significantly higher in eggs from egg-type hens while the thickness and proportion of shell did not differ between the types of hens. The last two mentioned traits were not significantly affected by age. The breed has a significant effect on all traits except percentage albumen and percentage yolk. In both types of hens the weights of albumen, yolk and shells were positively related to egg weight. The relation between yolk : albumen ratio and egg weight was positive but not significant in meat-type hens.
Hivatkozások
Basmacioglu, H, Ergul, M. (2005). Research on the factors affecting cholesterol content and some other characteristics of eggs in laying hens. The effect of genotype and rearing system. Turk. J. Vet. Anim Sci., 29. 157–164.
Campo, J. L., Gil, M. G., Dávila, S. G. (2007). Differences among white-, tinted-, and brown-egg laying hens for incidence of eggs laid on the floor and for oviposition time. Arch. Geflügelkd., 71. 3. 105–109. https://doi.org/10.1016/S0003-9098(25)00531-4
Campo, J. L. (1995). Comparative yolk cholesterol content in four Spanish breeds of hens, an F2 cross, and a White Leghorn population. Poultry Sci., 74. 7. 1061–1066. https://doi.org/10.3382/ps.0741061
Curtis, P. A., Gardner, F. A., Mellor, D. B. (1986). A comparison of selected quality and compositional characteristics of brown and white shell eggs. III. Composition and nutritional characteristics. Poultry Sci., 65. 3. 502–507. https://doi.org/10.3382/ps.0650501
Fletcher, D. L., Britton, W. M., Pesti, G. M., Rahn, A. P. (1983). The relationship of layer flock age and egg weight on egg component yields and solids content. Poultry Sci., 62. 9. 1800–1805. https://doi.org/10.3382/ps.0621800
Harms, R. H., Hussein, S. M. (1993). Variations in yolk: albumen ratio in hen eggs from commercial flocks. J, Appl. Poult. Res., 2. 2. 166–170. https://doi.org/10.1093/japr/2.2.166
Hu, F. B., Stampfer, M. J., Rimm, E. B., Manson, J. E., Ascherio, A., Colditz, G. A., Rosner, B. A., Spiegelman, D., Speizer, F. E., Sacks, F. M., Hennekens, C. H., Willett, W. C. (1999). A prospective study of egg consumption and risk of cardiovascular disease in men and women. Journal of American Medical Association. 281. 15. 1387–1394. https://doi.org/10.1001/jama.281.15.1387
Hussein, S. M., Harms, R. H., Janky, D. M. (1993). Effect of age on the yolk to albumen ratio in chicken eggs. Poultry Sci., 72. 3. 594–597. https://doi.org/10.3382/ps.0720594
Johnston, S. A., Gous, R. M. (2007). Modelling the changes in the proportions of the egg components during a laying cycle. Br. Poult. Sci., 48. 3. 347–353. https://doi.org/10.1080/00071660701381134
Liu, X, Zhao, H. L., Thiessen, S., House, J. D., Jones, P. J. H. (2010). Effect of plant sterol- enriched diets on plasma and egg yolk cholesterol concentrations and cholesterol metabolism in laying hens. Poultry Sci., 89. 2. 270–275. https://doi.org/10.3382/ps.2009-00249
Lukáš, Z., Tčmová, E., Štolc, L. (2009). Effects of genotype, age and their interaction on egg quality in brown-egg laying hens. Acta Vet. Brno. 78. 1. 85–91. https://doi.org/10.2754/avb200978010085
Rizzi, C., Chiericato, G. M. (2005). Organic farming production. Effect of age on the productive yield and egg quality of hens of two commercial hybrid lines and two local breeds. Ital. J. Anim. Sci., 4. Suppl. 3. 160–162. https://doi.org/10.4081/ijas.2005.3s.160
SAS Institute Inc. (2003). The SAS System for Windows. Release 9.1.3.
Silversides, F. G., Scott, T. A. (2001). Effect of storage and layer age on quality of eggs from two lines of hens. Poult. Sci., 80. 8. 1240–1245. https://doi.org/10.1093/ps/80.8.1240
Suk, Y. O., Park, C. (2001). Effect of breed and age of hens on the yolk to albumen ratio in two different genetic stocks. Poult. Sci., 80. 7. 855–858. https://doi.org/10.1093/ps/80.7.855
Tavčar, T. (2009). Cholesterol content in the eggs of Slovenian local breeds of hens. Graduation thesis. University of Ljubljana, Biotechnical Faculty, Zootechnical Department, 45 p.
Van den Brand, H., Parmentier, H. K., Kemp, B. (2004). Effects of housing system (outdoor vs. cages) and age of laying hens on egg characteristics. Br. Poult. Sci., 45. 6. 745–752. https://doi.org/10.1080/00071660400014283
Yannakopoulos, A. L., Tserveni-Gousi, A. S., Nikokyris, P. (1994). Egg composition as influenced by time of oviposition, egg weight, and age of hens. Arch. Geflügelkd., 58. 5. 206–213. https://doi.org/10.1016/S0003-9098(25)01421-3
Zemková, č., Simeonovová, J., Lichovníková, M., Somerlíková, K. (2007). The effects of housing systems and age of hens on the weight and cholesterol concentration of the egg. Czech. J. Anim. Sci., 52. 4. 110–115. https://doi.org/10.17221/2269-CJAS
Letöltések
Megjelent
Folyóirat szám
Rovat
License
Copyright (c) 2010 Dušan Terčič, Antonija Holcman

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
