Cobb 100
The Cobb 100 was a commercial broiler genotype developed by Cobb-Vantress in the United States, historically distributed in India by Venkateshwara Hatcheries. Introduced in India in the 1970s–1980s, it was the dominant commercial broiler genotype in India during the 1980s and 1990s, accounting for approximately 60%–70% of all broiler placements. It has since been phased out and replaced by more advanced lines.
Practical Overview & Field Action
Field Verification Checkpoints
- FCR Benchmarks: 2.10–2.30 (grow-out)
Breed Characteristics
Economic Importance
The Cobb 100 was the foundational commercial broiler that enabled the early expansion of India's poultry industry. Its dominant position during the 1980s and 1990s was supported by government restrictions on the import of grandparent lines (in place until 1995). It is no longer commercially available, having been replaced by advanced lines like Vencobb 400 and Cobb 500.
Overview
The Cobb 100 was a commercial broiler genotype developed by Cobb-Vantress in the United States, first introduced to India in the 1970s–1980s. It was the dominant commercial broiler genotype in India during the 1980s and 1990s, accounting for approximately 60%–70% of all broiler placements. It is now phased out and no longer commercially available, having been replaced by more advanced lines like Vencobb 400 and Cobb 500.
Origin
Developed by Cobb-Vantress (United States), historically distributed in India by Venkateshwara Hatcheries. Alternate names include Cobb 100 and Historic Cobb. The breed's dominant position in the early Indian broiler industry was supported by government restrictions on the import of grandparent lines, which remained in place until 1995.
Production Performance
| Historical Performance Metric | Average Target Range |
|---|---|
| Market Age | 6–8 weeks |
| Live Weight at 6 Weeks | 1.400–1.600 kg |
| FCR (Grow-out) | 2.10–2.30 |
| Livability Percentage | 93.0%–95.0% |
| Carcass Yield | 74.0%–75.0% |
| Primary Limitation | Lower carcass and breast meat yield compared to modern lines |
Key Characteristics
- Growth Rate: Slow by modern standards
- Heat Tolerance: Excellent — strong general immunity and excellent heat and humidity tolerance under tropical Indian summer conditions
- Leg Strength: Excellent — robust metabolic profile
- Hardiness: Extremely hardy — valued for ability to perform under poor management conditions
Management Requirements
- Housing: Basic open-sided housing systems with minimal ventilation
- Stocking Density: 1.2–1.3 sq. ft. per bird
- Feed Program: Basic maize-soya based diets
Health Considerations
- Exceptionally hardy with strong general immunity
- Excellent heat and humidity tolerance under tropical Indian summer conditions
- Excellent leg strength with robust metabolic profile
Economic Importance
While the Cobb 100 was highly profitable in the early era of Indian poultry due to its reliability and hardiness, its lower carcass yield and higher FCR made it less competitive as the market modernized and transitioned toward integrated operations and processed products.
Advantages
- Exceptional hardiness and adaptability to tropical Indian climates
- Strong resistance to local diseases and environmental challenges
- High reliability under basic management conditions
Limitations
- Lower carcass and breast meat yield compared to modern lines
- Higher FCR and slower growth rate compared to advanced commercial genotypes
- Phased out and no longer commercially available
Best Suitable Farming Systems
- Historical note only — breed is phased out and no longer commercially available
References
- Poultry production structure and technical performance in India — USDA Economic Research Service, 2004, USDA ERS
Review official commercial growth, feed intake, and FCR efficiency trajectories for Cobb 500, Ross 308, and VenCobb 430 with governed biophysical comparability.
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