Volume 2, Issue 6, December 2017, Page: 68-70
Influence of Genotype and Hen Age on the Egg Shape Index
Ahmed Sami Shaker, Department of Animal Production, Agricultural Research Centre, Sulaimani, Iraq
Shahla Mohammed Said Kirkuki, Faculty of Animal Production, Sulaimani University, Sulaimani, Iraq
Shangaberry Rawf Aziz, Department of Animal Production, Agricultural Research Centre, Sulaimani, Iraq
Bakhan Jalil Jalal, Department of Animal Production, Agricultural Research Centre, Sulaimani, Iraq
Received: Sep. 3, 2017;       Accepted: Sep. 28, 2017;       Published: Nov. 8, 2017
DOI: 10.11648/j.ijbbmb.20170206.12      View  1562      Downloads  105
Shape index was a good indicator to characterize species as well as for egg quality. It seems that shape index affected by genetic and environment factors. In this study, the aim was to determine the influence of genotype and age on the shape index. A total of 789 eggs were collected from four genetic lines (Black, Black with brown neck, White Shank feather and White non-Feathering shank) of the Kurdish Chickens when the hens 52 - 65 week-old. Results indicated that significant differences were observed between the four genetic lines in shape index. White non-feathering shank (WNFS) followed by Black with brown neck (BBN) significantly (P ≤ 0.05) had higher shape index compared with Black (B) and White shank feather (WSF). Moreover, shape index did not significantly affected by interaction between different breeds and different period’s age (week) due to the uniform of egg shape and because it falls within the normal range.
Local Chicken, Shape Index, Genetic, Breadth, Length
To cite this article
Ahmed Sami Shaker, Shahla Mohammed Said Kirkuki, Shangaberry Rawf Aziz, Bakhan Jalil Jalal, Influence of Genotype and Hen Age on the Egg Shape Index, International Journal of Biochemistry, Biophysics & Molecular Biology. Vol. 2, No. 6, 2017, pp. 68-70. doi: 10.11648/j.ijbbmb.20170206.12
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abas, K. A., Hermiz, H. N., Al-Khatib, T. R., Amin, S. M., Ahmed, A. M., & Hamad, D. A. (2014). Comparative productive performance of local hens in Erbil-Kurdistan region. Journal of zankoy sulaimani, 16, 203-206.
Ahuntas, E., & Sekeroglu, A. (2008). Effect of egg shape index on mechanical properties of chicken eggs. Journal of Food Engineering, 85, 606-612.
Anderson, K. E., Tharrington, J. B., & Curtis, P. A. (2004). Shell characteristics of egg from historic strains of single comb white leghorn chickens and the relationship of egg shape to shell strength. International Journal of Poultry Science, 3 (1), 17-19.
Asci, E., & Durmus, I. (2016). Effect of egg shape index on hatching characteristics in hens. Turkish Journal of Agriculture-Food science and Technology, 3 (7), 583-587.
Baker, C. (1960). The genetic basis of egg quality. British Poultry Science, 1 (1-3), 3-16.
Barta, Z., & Szekely, T. (1997). The optimal shape of avian eggs. Functional ecology, 11, 656-662.
Buss, E. G. (1982). Genetic differences in avian egg shel formation. Poult. Sci., 61, 2048-2055.
Duncan, D. B. 1955. Multiple Range and Multiple Test. Biometrics. 11: 1-42.
Egahi, J. O., Dim, N. I., & Momoh, O. M. (2013). The effect of plumage modifier genes on egg quality indices of the nigerian local chicken. Journal of Agriclture and veterinar Science, 2 (2), 04-06.
Hermiz, H. N., K. A. Abas, T. R. Al-Khatib, Sh. M. Amin, A. M. Ahmed, D. A. Hamad, H. P. Denha. 2012. Effect of strain and storage period on egg quality characteristics of local Iraqi laying hens. Research Opinions in Animal & Veterinary Sciences. pp: 98-101.
Khurshid, A., Farooq, M., Durrani, F. R., Sarbiland, K., & Manzoor, A. (2004). Hatching performance of japanese quail. Livestock Research For Rural Development, 16 (1).
Lundberg, C.-A., & Vaisanen, R. A. (1979). Selective correlation of egg size with chick mortality in the black-headed gull (LARUS RIDIBUNDUS). Condor, 81, 146-156.
Marble D. R. (1943). Genetics of Egg Shape Poult Sci 22 (1): 61-71.
Mohammed, R. M., Kirkuki, S. M., Abdulla, S. S., & Ali, S. M. (2016). Effect of three genetic groups of Kurdish local chicken and Isa brown on egg external quality and earlobe color. International Journal of Applied Biology and Pharmaceutical Techonology, 7 (1), 254-257.
Monira, K. N., Salahuddin, M. and Miah, G. 2003. Effect of breed and holding period on egg quality characteristics of chicken. International Journal of Poultry Science, 2 (4): 261-263.
Mueller, W. J., Maw, A. G., & Buss, E. G. (1960). The influence of season and the age of layers on egg weight, shape index, albumen quality and shell thickness. Poultry Science, 39 (4), 854-860.
Narushin, V. G., & Romanov, M. N. (2002). Egg physical characteristics and hatchability. World's Poultry Science Tournal, 58, 297-303.
Pinowska, B., Barlcowska, M., Pinowski, J., Hahm, K.-H., & Lebedeva, N. (2002). The effect of egg size on hatching rate in the tree sparrow. ACTA ornithologica, 37 (1), 7-14.
Rajkumar, U. R. P. Sharma, K. S. Rajaravindra, M. Niranjan, B. L. N. Reddy, T. K. Bhattacharya and R. N. Chatterjee (2009). Effect of Genotype and Age on Egg Quality Traits in Naked Neck Chicken under Tropical Climate from India. International Journal of Poultry Science 8 (12): 1151-1155.
Reddy, P., Reddy, V., Reddy, C., & Rap, P. (1979). Egg weight shape index and hatchability in Khaki campbell duck egg. Ind. J. Poult. Sci., 14, 26-31.
Richards, J. F., & Swanson, M. H. (1965). The relationship of egg to shell strength. Poultry Science, 44 (6), 1555-1558.
Roland, D. A. (1978). The relationship of egg shape to time of ovipositin and egg shell quality. Poultry Science, 57 (6), 1723-1727.
Shaker, A. S., Hermiz, H. N., Al-Khatib, T. R., & Mohammed, R. M. (2016). Egg shape characterization for four genetic groups of Kurdish local chickens. Food and Nutrition Science-An International Journal, 1, 20-25.
Shultz, F. T. (1953). Analysis of egg shape of chickens. Biometrics, 9 (3), 336-353.
Song, K. T., Choi, S. H., & Oh, H. R. (2000). A comparison of egg quality of Pheasent, Chukar, Quail and Guinea fowl. Asian-Aus. J. Anim. Sci., 13 (7), 986-990.
Tůmová, E., L. Zita, M. Hubený, M. Skřivan, Z. Ledvinka 2007. The effect of oviposition time and genotype on egg quality characteristics in egg type hens. Czech J. Anim. Sci., 52, 2007 (1): 26–30.
Yakubu, A., D. M. Ogan and R. E. Barde. (2008). Productivity and egg quality characteristic of free range naked neck and normal feathered Nigerian indigenous chickens. International Journal of Poultry Science 7 (6): 579-585.
Browse journals by subject