Carcase composition of Taiwan simulated native chickens

Area of Science:

• Animal Science
• Poultry Science
• Comparative Physiology

Background:

• Understanding carcass composition is crucial for optimizing poultry production and nutritional management.
• Taiwan native chickens represent a unique genetic resource with potential economic value.

Purpose of the Study:

• To investigate the differential carcass composition of Taiwan simulated native chickens.
• To analyze the changes in protein, fat, water, and ash mass across different growth stages.
• To establish regression models for predicting carcass composition based on age and weight.

Main Methods:

• Live body weight and carcass weight measurements were recorded.
• Proximate analysis was performed to determine protein, fat, water, and ash content.
• Statistical analysis, including regression analysis, was employed to analyze the data.

Main Results:

• Male chickens showed significantly higher protein, water, and ash mass compared to females from weeks 7-20.
• Female chickens exhibited significantly higher fat mass than males between weeks 14-20.
• Distinct regression equations were formulated for males and females, relating carcass composition to age and weight.

Conclusions:

• Significant sexual dimorphism exists in the carcass composition of Taiwan native chickens.
• Growth stage and sex are critical factors influencing carcass quality.
• The derived regression equations can serve as valuable tools for predicting and managing carcass composition in this breed.