Investigation of Some Mathematical Formulas Developed for Different Bird Eggs in Guinea Fowl Eggs
DOI:
https://doi.org/10.24925/turjaf.v14i2.482-486.8513Keywords:
Weight-based, Shell properties, Shape characteristics, Numida melagris , Mathematical calculationAbstract
This study aimed to examine the applicability of formulas determined in eggs of different poultry species to guinea fowl, particularly in terms of egg shell and shape characteristics. In this study, 69 eggs from guinea fowl (Numida melagris) raised as a hobby in the districts of Antakya and Ereğli were used. Individual egg weights were weighed using an electronic scale. The length and width of the egg were determined using two different methods: the first was measurement with calipers, and the second was mathematical calculation. The mathematical equations used for egg length and width values are: Eq.-1 (14.7 × (Egg weight)0.341), Eq.-2 (13.04938 × (Egg weight)0.373272), Eq.-3 (11.3 × (Egg weight)0.327) and Eq.-4 (8.01571 × (Egg weight)0.448338). In addition, some external quality characteristics have been calculated using mathematical formulas based solely on egg weight. Statistically significant differences were found between the determination methods for all external quality characteristics of guinea fowl eggs (P<0.01). The data obtained show the average egg weight (38.07 g) and, using this weight, the egg length (48.90 mm, 50.82 mm, 50.73 mm), egg width (36.66 mm, 37. 12 mm 40.95 mm), shape index (%75.05, %73.06, %80.71), elongation (1.335, 1.369, 1.239), shell weight (3.01 g), shell thickness (0.27 mm), egg surface area (53.79 cm², 51.84 cm²), and pore count (6512.54, 4954.09, 4786.13) were calculated. The egg width-1 value of obtained through mathematical calculation deviated by 1.296% from the caliper measurement result. The error rate of using Eq.-2 in the calculation of guinea fowl egg length and Eq.-3 in calculating egg width was found to be lower than that of other mathematical formulas. As a result, it is considered that data obtained based on egg weight can be used in scientific studies.
References
Alaşahan, S., & Çopur Akpinar, G., (2014). An investigation on the determination of factors influencing chick sex prediction in hatching eggs. African Journal of Agricultural Research, 9(6), 603-606. DOI: 10.5897/AJAR2013.8230
Alasahan, S., & Copur, A. G. (2016). Hatching characteristics and growth performance of eggs with different egg shapes. Brazilian Journal of Poultry Science, 18(1), 001-008. https://doi.org/10.1590/1516-635X1801001-008
Alaşahan, S., Dağoğlu Hark, B., & Eltas, Ö. (2019). Prediction of the length and width of quail eggs using linear regression analysis. Eurasian Journal of Veterinary Sciences, 35(3), 152-157. DOI: 10.15312/EurasianJVetSci.2019.237
Alkan, S., Karslı, T., Durmuş, İ., & Karabağ, K. (2016). Beç tavuklarında (numida meleagris) yumurta şekil indeksinin yumurta kalitesine etkileri. Türk Tarım–Gıda Bilim ve Teknoloji Dergisi, 4(9), 758-762. DOI: 10.24925/turjaf.v4i9.758-762.737
Aysondu, M. H., & Özyürek, S. (2021). Determination of egg internal and external quality characteristics with mathematical formulas in guinea hens. Erzincan University Journal of Science and Technology, 14(3), 1006-1014. https://doi.org/10.18185/erzifbed.981379
Banaszewska, D., Bombik, T., Wereszczyńska, A., Biesiada-Drzazga, B., & Kuśmierczyk, K. (2015). Changes of certain quality characteristics of guınea fowl’s eggs depending on storage conditions. Acta Sci. Pol. Zootechnica, 14(2), 45–54.
Barta, Z., & Szekely, T. (1997). The optimal shape of avian eggs. Functional Ecology, 11, 656-662.
Baryeh, E. A., & Mangope, B. A. (2003). Some physical properties QP-38 variety pigeon pea. Journal of Food Engineering, 56: 59-65.
Bernacki, Z., Kokoszynski, D., & Bawej, M. (2013). Laying performance, egg quality and hatching results in two guinea fowl genotypes. Archiv fur Geflugelkunde, 77(2), 109–115. DOI: 10.1016/S0003-9098(25)01497-3
Bucław, M., Adaszyńska-Skwirzyńska, M., Majewska, D., Szczerbińska, D., & Dziȩcioł, M. (2024). Evaluation of the quality of guinea fowl (Numida meleagris) eggs from free-range farming depending on the storage period and age of laying hens. Foods, 13(13), 2161. DOI: 10.3390/foods13132161
Carter, T. C, (1975). The hen's egg: Estimation of shell superficial area and egg volume, using measurements of fresh egg weight and shell length and breadth alone or in combination. British Poultry Science, 16, 541-543.
Das, S. C., Sultana, F., Dey, B., Afrin, A., Ahmed, T., & Lahiry, A. (2021). Comparative study on the growth performance of three varieties of guinea fowl (pearl, white, lavender) under intensive rearing system in hot humid climatic condition. Journal of Bangladesh Agricultural University, 19(4), 486–492. DOI: 10.5455/JBAU.102625
Ekinci, O., Esenbuga, N., & Dagdemir, V. (2023). The effects of body weight and age on performance, egg quality, blood parameters, and economic production of laying hens. Journal of The Hellenic Veterinary Medical Society, 74(2), 5799-5806. DOI: 10.12681/jhvms.30324
Eleroğlu, H., Yıldırım, A., Duman, M., & Okur, N. (2016). Effect of eggshell color on the egg characteristics and hatchability of guinea fowl (Numida meleagris) Eggs. Brazilian Journal of Poultry Science, Special Issue, 061-068. https://doi.org/10.1590/1806-9061-2015-0154
Eleroğlu, H. (2021). Determination of egg quality characteristics using digital image analysis and using mathematical formula in guinea fowl (Numida meleagris). Turkish Journal of Agriculture - Food Science and Technology, 9(11), 2056-2064. https://doi.org/10.24925/turjaf.v9i11.2056-2064.4839
Garba, S., Nasiru, M. H., Muhammed, N. A., & Taiwo, K. A. (2025). Evaluation of quality characteristics of eggs from local and improved guinea fowls raised under semiintensive management system. International Journal of Veterinary Sciences Research, 11(1), 001-004. DOI: 10.17352/ijvsr.000151
Hoyt, D. F. (1979). Practical methods of estimating volume and fresh weight of bird eggs. Ornithology, 96, 73-77. https://www.researchgate.net/publication/261794875
İnci, H., Celik, S., Sogut, B., Sengul, T., & Karakaya, E. (2015). Figuring out the effects of different feather color on the characteristics of Interior and exterior egg quality of japanese quail by using kruskal-wallis tests. Türk Tarım ve Doğa Bilimleri Dergisi, 2(1), 112-118.
Idahor, K. O., Akinola, L. A. F., & Chia, S. S. (2015). Predetermination of quail chick sex using egg indices in north central Nigeria. Journal of Animal Production Advance, 5(1), 599-605. DOI: 10.5455/japa.20141223074311
Kayadan, M., & Uzun, Y. (2023). High accuracy gender determination using the egg shape index. Scientific Reports, 13, 504. DOI: 10.1038/s41598-023-27772-4
Ketta, M., & Tumová, E. (2016). Eggshell structure, measurements, and quality affecting factors. Czech Journal of Animal Science, 61 (7), 299-309. DOI: 10.17221/46/2015-CJAS
Khairunnesa, M., Das, S., & Khatun, A. (2016). Hatching and growth performances of guinea fowl under intensive management system. Progressive Agriculture, 27(1), 70-77. DOI: 10.3329/pa.v27i1.27544
King'ori, A. M. (2012). Poultry eggs external characteristics. egg weight, shape and shell color. Research Journal of Poultry Science, 5(2); 14-17.
Kirby, E. D., Zhang, Z., & Chen, J. C. (2004). Development of an accelerometer based surface roughness prediction system in turning operations using multiple regression techniques. JTMAE, 20(4), 001-008.
Krunt, O., Zita, L., Kraus, A., Okrouhlá, M., Chodová, D., & Stupka, R. (2021). Guinea fowl (Numida meleagris) eggs and free-range housing: a convenient alternative to laying hens eggs in terms of food safety? Poultry Science, 100, 101006. https://doi.org/10.1016/j.psj.2021.01.029
Lacin, E., Yildiz, A., Esenbuga, N., & Macit, M. (2008). Effects of differences in the initial body weight of groups on laying performance and egg quality parameters of Lohmann laying hens. Czech Journal of Animal Science, 53(11), 466–471. DOI: 10.17221/341-CJAS
Mohsenin, N. N (1970). Page 742 in Physical Properties of Plant and Animal Material [M]. Gordon and Breach, New York, NY.
Mueller C. D., & Scott H. M. (1940). The porosity of the egg-shell in relation to hatchability. Poultry Science, 19(3), 163–6. https://doi.org/10.3382/ps.0190163
Nordstrom, J. O., & Ousterhout, L. E. (1982). Estimation of shell weight and shell thickness from egg specific gravity and egg weight. Poultry Science, 61(10), 1991-1995. https://doi.org/10.3382/ps.0611991
Onunkwo, D. N., & Okoro, I. C. (2015). External and internal egg quality characteristics of three varieties of helmeted guinea fowl (Numida meleagris) in Nigeria. International Journal of Current Research and Review, 7(7), 010–017.
Portillo-Salgado R, Cigarroa-Vazquez FA, Ruiz-Sesma B, Mendoza-Nazar P, Hernández-Marín A, Esponda-Hernández, W., & Bautista-Ortega, J. (2021). Prediction of egg weight from external egg traits of guinea fowl using multiple linear regression and regression tree methods. Brazilian Journal of Poultry Science, 23(03), 001-006. DOI: 10.1590/1806-9061-2020-1350
Rahn, H., Paganelli, C. V. (1988). Length, breadth, and elongation of avian eggs from the tables of Schönwetter. Journal fur Ornithologie, 129, 366–369.
Rahn, H., & Paganelli, C. V. (1989). Shell mass, thickness and density of avian eggs derived from the tables of Schönwetter. Journal fur Ornithologie, 130, 59–68.
Rahn, H., & Paganelli, C. V. (1990). Gas fluxes in avian eggs: driving forces and the pathway for exchange. Comparative Biochemistry and Physiology part A, 95(1), 001–015. DOI: 10.1016/j.cbpa.2009.02.041
Raziq, F., Hussain, J., Ahmad, S., Hussain, M. A., Khan, M. T., Ullah, A., Qumak, M., Wadood, F., & Faran, G. (2024). Effect of body weight at photostimulation on productive performance and welfare aspects of commercial layers. Animal Bioscience, 37(3), 500–508. DOI: 10.5713/ab.22.03.65
Rayan, G. N., Mansour, A., & Fathi, M. M. (2022). Comparative study of egg and meat quality of guinea fowl under different tropical regions: A review. Brazilian Journal of Poultry Science, 24(4), 1–10. http://dx.doi.org/10.1590/1806-9061-2022-1677
Rodríguez-Navarro, A. B., Domínguez-Gasca, N., Athanasiadou, D., Le Roy, N., González-Segura, A., Reznikov, N., Hincke, M. T., McKee, M. D., Checa, A. G., Nys, Y., & Gautron, J. (2024). Guinea fowl eggshell structural analysis at different scales reveals how organic matrix induces microstructural shifts that enhance its mechanical properties. Acta Biomaterialia, 178, 244–256. https://doi.org/10.1016/j.actbio.2024.03.001
Sarıca, M., Camcı, Ö., Selçuk, E. (2003). Quail, pheasant, pigeon, guinea fowl, and ostrich farming. Ondokuz Mayıs University Faculty of Agriculture Book, 4, 129- 144, Samsun, Turkey.
Stoddard, M. C., Yong, E. H., Akkaynak, D., Sheard, C., Tobias, J. A., & Mahadevan, L. (2017). Avian egg shape: Form, function, and evolution. Science, 356(6344), 1249-1254. DOI: 10.1126/science.aaj1945
Shuaibu, A., Ibrahim, T., Yakubu, K., Bukola, O. A., & Umar, H. A. (2019). Influence of straıns on egg quality traits of guınea fowl (Numida meleagris). FUDMA Journal of Agriculture and Agricultural Technology, 5(2), 205-215.
Tuan, R. S. (1987). Mechanism and regulation of calcium transport by the chick embryonic chorioallantoic membrane. Journal of Experimental Zoology, 1, 1-13.
Wang, L. C., Ruan, Z. T., Wu, Z. W., Yu, Q. L., Chen, F., Zhang, X. F., Zhang, F. M., Linhardt, R. J., & Liu, Z. G. (2021). Geometrical characteristics of eggs from 3 poultry species. Poultry Science, 100(3), 100965. https://doi.org/10.1016/j.psj.2020.12.062
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