Maximising Productivity and Eliminating Campylobacter in Broilers by Manipulating Stocking Density and Population...

Area of Science:

• Animal Science
• Veterinary Medicine
• Food Safety

Background:

• Stocking density significantly impacts broiler chicken growth and productivity.
• Campylobacter poses a major foodborne pathogen risk in poultry production.
• Biosecurity measures are crucial for mitigating disease transmission in commercial flocks.

Purpose of the Study:

• To evaluate the effect of stocking density on broiler growth and productivity within biosecurity cubes (BC).
• To assess the efficacy of BC in preventing Campylobacter contamination in broiler chickens.
• To determine optimal stocking densities for enhanced broiler yield and health.

Main Methods:

• Six biosecurity cubes (BC) were implemented in a commercial broiler house with approximately 28,500 birds.
• Trials involved stocking densities ranging from 12 to 22 birds/m² within BC, with a control group at 20 birds/m².
• Broiler weights were recorded periodically, and Campylobacter status was monitored using fecal samples (ISO 10272:2017).

Main Results:

• Maximum calculated yield was achieved at stocking densities of 20-22 birds/m².
• Broilers within BC at 20 birds/m² exhibited faster growth (2 kg, 3-6 days sooner) compared to the control flock.
• Birds housed in BC demonstrated improved health and, in some instances, remained Campylobacter-negative post-infection of the main flock.

Conclusions:

• Dividing broiler flocks into sub-flocks using BC at approximately 20 birds/m² can enhance productivity by up to 20%.
• Biosecurity cubes effectively contribute to preventing Campylobacter transmission within commercial broiler operations.
• Optimized stocking densities within controlled environments like BC promote healthier birds and improved growth rates.