Effect of moving dairy cows at different stages of labor on behavior during parturition.

摘要: Cows are often moved from a group to an individual maternity pen just before calving. However, it is unclear whether moving cows during labor may alter their behavior or affect the progress of labor. The aim this study was determine if at different stages would influence calving length second stage Seventy-nine multiparous Holstein dairy were 1 2 pens 10 adjacent each either 3 d expected date when one more behavioral physical signs observed. These noted, and used retrospectively categorize into movement categories: (1) labor, (2) early I (signs suddenly tense enlarged udder, raised tail relaxed pelvic ligaments; could also be immediately prelabor), (3) late viscous, bloody mucus abdominal contractions; transitioning II labor). Calves weighed within 12h birth remained with dam for d. (the time between first contractions delivery calf) total contractions, lying time, number position changes standing made by cow in hour recorded. A single blood sample taken jugular vein 27 h after content haptoglobin, marker systemic inflammation. effect category on variables tested ANOVA; fixed calf body weight (BW) parity covariates. relationship haptoglobin model sampling relative as covariate. had longest but did not have longer compared other categories. same spent half much 1h categories, differ lying. We power test higher postcalving. Moving part caused delay likely driven altered behavior.