Interindividual distances and orientations of laying hens under 8 stocking densities measured by integrative deep learning techniques.

ABSTRACT: Interindividual distances and orientations of laying hens provide quantitative measures to calculate and optimize space allocations for bird flocks. However, these metrics were often measured manually and have not been examined for different stocking densities of laying hens. The objectives of this study were to 1) integrate and develop several deep learning techniques to detect interindividual distances and orientations of laying hens; and 2) examine the 2 metrics under 8 stocking densities via the developed techniques. Laying hens (Jingfen breed, a popular hen breed in China) at 35 wk of age were raised in experimental compartments at 8 different stocking densities of 3,840, 2,880, 2,304, 1,920, 1,646, 1,440, 1,280, and 1,152 cm²•bird^-1 (3-10 hens per compartment, r

SUBMITTER: Li G 

PROVIDER: S-EPMC10520532 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature