Present research was conducted to determine the effects of various lighting programmes and stocking density on colour, pH and TBARS parameters of meat in broilers. A total of 320 male chicks (Ross 308), one day old, were used in the study. Chicks were kept in different rooms where two lighting programs [Constant Lighting (CL): 16 h light, 8 h dark; Intermittent Lighting (IL): 4 h light, 2 h dark] were applied. Experimental design was consisted of two lighting programs and each lighting group had two stocking density subgroups [Normal density (ND): 12 broilers/m; High density (HD): 20 broilers/ m], five replicates each. The experiment lasted for 42 d. Effect of stocking density on breast meat pH was found to be significant (P<0.05). Colour parameters such as L*, a* and b* determined in breast meat were not affected either by lighting programme or stocking density. Lighting programmes significantly (P<0.05) effected the a* colour criteria, determined in thigh meat. TBARS values were affected by stocking density (P<0.05). In conclusion, the stocking density had a significant effect on pH and TBARS and the lighting programme affected the a* value in thigh meat, while the interaction between lighting programme x stocking density had also a significant effect on the L* and b* values of breast meat. Key words: Broiler, Colour, pH, Stocking density, TBARS.
Farklı aydınlatma programı ve yerleşim yoğunluğunun broyler etlerinde renk, pH ve TBARS parametreleri üzerine etkilerini belirlemek amacıyla yürütülen denemede, 320 adet bir günlük erkek civciv (Ross 308) kullanılmıştır. Civcivler, iki aydınlatma programının [Sabit Aydınlatma (SB): 16 saat aydınlık, 8 saat karanlık; Kesikli Aydınlatma (KS): 4 saat aydınlık, 2 saat karanlık] uygulandığı farklı odalara yerleştirilmiştir. Her bir aydınlatma grubu iki ayrı yerleşim yoğunluğunda [Normal Yerleşim Yoğunluğu (NY): 12 broyler/m2, Yüksek Yerleşim Yoğunluğu (YY): 20 broyler/m2] beşer tekrar olacak şekilde deneme düzeni oluşturulmuştur. Deneme 42. günde sonlandırılmıştır. Piliç göğüs eti pH’sı üzerine yerleşim sıklığının etkisi önemli (P0.05). But eti a* renk kriteri bakımından ise aydınlatma programlarının etkisinin önemli (P
Primary Language | Turkish |
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Journal Section | Araştırma Makaleleri |
Authors | |
Publication Date | December 24, 2013 |
Published in Issue | Year 2013 Volume: 8 Issue: 3 |