Impact of bovine respiratory disease on tissue-specific regulation of Zn and vitamin a metabolism and apparent absorption and retention of trace minerals.

ABSTRACT: This study aimed to characterize trace mineral and vitamin A metabolism and redistribution during clinical and subclinical respiratory infection in beef on dairy crossbred steers (n = 29; BW = 230 ± 2.14 kg). Steers were assigned to one of four groups encompassing days -6 to -1, 0 to 5, 5 to 10, and 10 to 15 of an experimental viral-bacterial respiratory challenge. Steers were adapted to metabolism crates for 5 d prior to a 5-d total urine and fecal collection period and necropsied at the end of the period. On day 0, steers were inoculated with bovine respiratory syncytial virus strain 375 followed by an intratracheal inoculation with Mannheimia haemolytica strain D153 on day 7. A natural disease challenge occurred during the study, leading to all steers showing signs of disease at necrops

SUBMITTER: Rients EL 

PROVIDER: S-EPMC12923155 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature