Sport improves function of roosters testicular Leydig cells by mediating FUNDC1.

ABSTRACT: Roosters play a crucial role in breeder chicken production. A decline in reproductive performance during the late breeding stage is a major factor limiting economic returns. Testosterone, a key hormone for maintaining secondary sexual characteristics and supporting spermatogenesis, is primarily synthesized and processed within mitochondria. With advancing age, mitochondrial function deteriorates in roosters, leading to reduced testosterone synthesis and impaired reproductive capacity. This study aimed to elucidate the mechanisms through which rest and sport affect the reproductive performance of aging roosters. A total of 36 Tianfu Pink roosters aged 110 weeks were allocated into three groups with three replicates per group. After a 4-week intervention involving rest and sport regimens, na

SUBMITTER: Chen Y 

PROVIDER: S-EPMC12906172 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature