Effect of Rearing Systems and Shell Color on Some Egg Quality Parameters
Öz
This study was conducted to determine some quality parameters of retail brown and white-shelled grade A table eggs, which were produced by cage, free-range and organic systems.
For this, a total of 30 eggs, 10 from each rearing system, and 15 from each shell color were purchased, and egg weight, shape index, shell thickness, shell strength, and yolk color as outer and inner quality parameters were determined.
The heaviest eggs were from cage system (65.04 g), and shape index and shell strength were the highest in organic eggs (78.37% and 41.02 N/cm2), while shell thickness was the lowest in free-range eggs (0.40 mm), and yolk color was the lightest in organic and free-range eggs (10 and 10.40). Additionally, brown eggs had higher values than white eggs in all of the parameters tested. Statistical analyses revealed that rearing systems have effect on shell thickness; while shell color has effect on both shell thickness and shape index (p<0.05).
In conclusion, contrary to the consumer prejudice, retail eggs from different rearing systems do not exhibit significant differences on some quality parameters tested.
Anahtar Kelimeler
Kaynakça
- Ahammed, M., Chae, B. J., Lohakare, J., Keo-havong, B., Lee, M. H., Lee, S. J., Kim, D. M., Lee J. Y., Ohh, S. J., 2014. Comparison of aviary, barn and conventional cage raising of chickens on laying performance and egg quality. Asian-Aust. J. Anim. Sci., 27, 1196-1203.
- Anar, Ş., 2016. Yumurta ve Yumurta Ürünleri, 1.Baskı, Dora Basım-Yayın Dağıtım Ltd.Şti., Bursa.
- Artan, S., Durmuş, İ., 2015. Köy, serbest ve kafes sistemlerinde üretilen yumurtaların kalite özellikleri bakımından karşılaştırılması. Academ-ic J. Agric., 4, 89-97.
- Barbosa Filho, J.A.D., Silva, M.A.N., Silva I.J.O, Coelho, A.A.D., 2005. Egg quality in layers housed in different production systems and sub-mitted to two environmental conditions. Braz. J. Poultry Sci., 8, 23-28.
- Baykalır, Y., Şimşek, Ü. G., 2014. Yumurta tavukçuluğunda kullanılan yetiştirme sistemleri. F. Ü. Sağ. Bil. Vet. Derg., 28, 93-98.
- Coutts, J. A., Wilson, G. C., 2007. Optimum Egg Quality. A Practical Approach, Erişim Tarihi: 01.06.2016, http://www.thepoultrysite.com/publications/1/egg-quality-handbook/
- FAO. Food and Agricultural Organization. Chap-ter 2 - Marketing Quality Eggs Quality Charac-ters. Erişim Tarihi: 01.06.2016, http://www.fao.org/docrep/005/y4628e/y4628e04.htm
- İpek, A., Sözcü, A., 2015. Alternatif kanatlı yet-iştirme sistemlerinde yetiştirme pratikleri ve re-fah standartları. U. Ü. Ziraat Fak. Derg., 29, 133-146.
Ayrıntılar
Birincil Dil
İngilizce
Konular
-
Bölüm
Araştırma Makalesi
Yazarlar
Ece Çetın
Bu kişi benim
Uludağ Üniversitesi Veteriner Fakültesi, Besin Hijyeni ve Teknolojisi Anabilim Dalı, Görükle Kampusu, 16059, Bursa, Türkiye.
Seran Temellı
Bu kişi benim
Uludağ Üniversitesi Veteriner Fakültesi, Besin Hijyeni ve Teknolojisi Anabilim Dalı, Görükle Kampusu, 16059, Bursa, Türkiye.
Ayşegül Eyigör
*
Uludağ Üniversitesi Veteriner Fakültesi, Besin Hijyeni ve Teknolojisi Anabilim Dalı, Görükle Kampusu, 16059, Bursa, Türkiye.
Yayımlanma Tarihi
12 Aralık 2016
Gönderilme Tarihi
5 Nisan 2016
Kabul Tarihi
-
Yayımlandığı Sayı
Yıl 2016 Cilt: 35 Sayı: 1-2