The characterization of uterine calcium transport and metabolism during eggshell calcification of hens laying high or low breaking strength eggshell.

ABSTRACT: This study investigated the differences of calcium transport-related proteins and metabolites in the uterus of hens with different breaking strength eggshell during the eggshell calcification. A total of 200 Hy-Line Brown laying hens, aged 75 weeks, were selected and categorized into two groups based on the eggshell breaking strength: a high-strength group (HS, > 42 N) and a low-strength group (LS, < 32 N). Laying hens were sampled at 1 h, 7 h (the initiation stage of eggshell calcification), and 17 h (the growth stage of eggshell calcification) post-oviposition (PO). The LS group showed a decreased thickness, weight and weight ratio of eggshells, accompanied with ultrastructural deterioration and total Ca reduction. The expression levels of ATP2A3, ATP2B2, SLC8A1, and SLC8A3 were signific

SUBMITTER: Yang YY 

PROVIDER: S-EPMC12018554 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature