Differentiating Breast Myopathies through Color and Texture Analyses in Broiler

Area of Science:

• Animal Science
• Food Science
• Poultry Science

Background:

• Wooden breast (WB), white striping (WS), and spaghetti meat (SM) are significant myopathies affecting the Pectoralis major muscle in broilers.
• These myopathies negatively impact critical meat quality attributes.

Purpose of the Study:

• To differentiate color and texture characteristics of broiler breast myopathies using instrumental methods.
• To evaluate the effectiveness of specific instrumental techniques for assessing myopathy severity.

Main Methods:

• 300 broiler carcasses from five flocks were analyzed 24 hours post-slaughter.
• Color was measured using a spectrocolorimeter; texture was assessed using a modified compression test and texture profile analysis (TPA) on raw and cooked meat.

Main Results:

• Color parameters, including redness, yellowness, and chroma, showed significant differences correlating with myopathy severity.
• A spectral index (R630 - R580) effectively differentiated myopathy degrees.
• A modified compression test proved useful for assessing meat hardness, with raw meat showing more distinct texture differences than cooked meat.

Conclusions:

• Instrumental color and texture analyses can effectively differentiate broiler breast myopathies.
• Raw meat texture assessment, particularly using a modified compression test, is more sensitive to myopathy-induced changes.
• The R630 - R580 index is a valuable tool for classifying myopathy severity.