Report Overview
The report is divided into several sections: Cobb’s corporate development history, forecasts for China’s white-feather broiler market, breed characteristics, directions in broiler breeding, breeder performance and nutritional requirements, and key points about new lines. As an international white-feather broiler breeding company, Cobb has established operations in upstream breeding and other parts of the industry chain since entering China. It conducts balanced breeding in light of the domestic market, focusing on meat production performance while also taking product quality into account, and provides corresponding breeder rearing and nutrition programs.
Development History
Cobb has a long history of breeding development and, after several changes in ownership, became part of Tyson; it officially established a presence in China in 2013, successively building production bases in Suizhou and Rizhao and completing the construction and expansion of grandparent farms and hatcheries to establish a localized presence in China.
Market Forecast
Based on forecasts for China’s white-feather broiler market, the share of Chinese breeds in the grandparent stock market is gradually increasing. Cobb, Aviagen, and domestic breeds together make up the market supply, while the overall market volume for parent stock continues to grow steadily.
Strain Characteristics
Cobb strains have demonstrated three characteristics in local production in China: stable breeder performance, with industry statistics for 2025 showing that the number of qualified chicks per housed hen can reach 135; fast growth in commercial broilers, good ability to thrive on coarse feed, and market weights suited to the quick-service restaurant industry, with good production returns still achievable when using low-energy diets; and balanced breeding guided by a whole-chain approach, taking both meat yield and end-product meat quality into account to help vertically integrated companies improve overall returns.
Broiler Breeding Direction
The report explains the essence of broiler breeding and its future direction. Breeding is not just about pursuing weight gain; it places greater emphasis on adding value to products after slaughter and cut-up. Continued selection has increased broiler body weight and breast meat yield, but has also led to meat quality defects such as woody breast. During breeding, scoring and selection are needed to address muscle fibrosis and inflammatory damage. Breeding approaches have also shifted from being product-driven to balanced breeding guided by consumer demand. While increasing the yield of primary products such as breast and leg meat, breeders also take the value of various by-products into account, address meat quality defects, and meet the practical needs of downstream slaughter and processing operations and consumers.
Breeder Performance and Nutritional Requirements
Hatching eggs contain water, protein, fat, and ash. The nutritional supply to breeders directly affects egg quality and chick quality. The pullet rearing period follows a defined standard body-weight curve, and management during weeks 1‑25 should be guided by target body weight. Throughout rearing, development of the viscera and immune system, skeletal growth, and muscle protein accumulation must be addressed in sequence, through to the onset of sexual maturity. When deciding on the farm whether hens are ready for light stimulation, body weight alone is not sufficient; fat reserves are critical. The width of the fat pad under the wing can be used as an assessment criterion, and light stimulation should be applied only when fat reserves meet the target. Weeks 15‑20 are a critical period in rearing. The goal of the entire feeding program is to ensure that, by the end of week 21, hens have the body condition and fat reserves required for light stimulation. Any shortfall in body condition or fat reserves will directly affect the subsequent peak egg production and persistency of lay.
Key Points on the New Line
Cobb’s new line continues the balanced breeding approach, taking breeder reproductive performance and commercial broiler production performance into account. In actual production, body weight must be controlled and body condition assessed, with particular attention to fat development. The nutritional feeding program must also be adapted to the genetic potential of the new line; the previous feeding program should not simply be carried over.
Overall, modern white-feather broiler breeding should not focus solely on growth rate; production performance, slaughter yield, and meat quality must be considered together. Breeding stock management should not focus only on body weight data; skeletal development, organ development, and fat reserves are also important. Managing body condition at 15‑21 weeks is key to ensuring reproductive performance later on. A breed’s genetic potential can be fully realized only when paired with scientific husbandry and nutrition plans.