Why do we measure the flexibility of the pubic bones in poultry?

Measuring the flexibility of the pubic bones in poultry is crucial to determine whether they will open sufficiently to allow an egg to pass through during the laying process. In female birds, particularly layers, the pubic bones must be flexible enough to accommodate the eggs as they pass through the reproductive tract. This flexibility indicates readiness for laying and overall reproductive health, ensuring that the bird can function properly.

While body weight, feather growth, and muscle strength are important aspects of poultry health and performance, they do not specifically relate to the function of the pubic bones in the context of egg production. Thus, the focus on pubic bone flexibility directly links to a key aspect of poultry reproductive capability.