Crossing old chicken breeds with modern hybrids offers a promising pathway for broiler production, combining genetic resilience with high growth efficiency. This approach not only enhances productivity but also supports biodiversity and animal welfare.
Introduction
Broiler production has traditionally relied on modern hybrids such as Cobb 500 and Ross 308, known for their rapid growth and feed efficiency. However, crossing these hybrids with old, native breeds introduces traits like robustness, adaptability, and disease resistance, which are increasingly valued in sustainable poultry farming1.
Genetic Diversity and Biodiversity Preservation
Old chicken breeds, many of which are endangered, carry unique genetic traits that can strengthen broiler lines. Crossbreeding helps preserve biodiversity while improving flock resilience. For example, breeds like Ramelsloher and Bielefelder Kennhuhn have been successfully crossed with commercial parent stock, resulting in birds that maintain high productivity while contributing to genetic conservation.
Performance and Growth Efficiency
Modern hybrids excel in growth rate and carcass yield, but they often face challenges related to health and welfare. Comparative studies of Cobb 500 and Ross 308 highlight their efficiency in tropical climates, yet crossing them with native breeds can balance performance with improved adaptability. Crossbred broilers have shown the ability to utilize regional, low-energy feed more effectively, reducing production costs and environmental impact2.
