Effects of udder edema on parlor behavior in first- and second-lactation Holstein dairy cows.

Udder edema (UE) is a metabolic disorder that most commonly occurs around the transition period. However, gaps exist in our knowledge about its effects on parlor behavior. The aim of this study was to examine the prevalence and effects of UE on behavior in the milking parlor during udder preparation and active milking from 2 to 9 days in milk in first- (FL) and second-lactation (SL) Holstein dairy cattle.

Impacts of group stunning on the behavioral and physiological parameters of pigs and sheep in a small abattoir.

This study investigated reactions of pigs (N = 148) and sheep (N = 77) to group stunning where animals were present for the slaughter of others. Mock stunning with an isolated animal was used as the control. In both species, there was little evidence to suggest a difference in blood glucose and cortisol with stun order (P ≥ 0.

Graduate Student Literature Review: Udder edema in dairy cattle-A possible emerging animal welfare issue.

Physiological udder edema is a noninfectious metabolic disorder in dairy cattle, which may be present in a high percentage of dairy cows. This review summarizes the factors associated with udder edema. They include genetics, nutrition, oxidative stress, and physiological changes in freshening heifers.