Abstrato

Calving Management Practices in Dairy Herds with a Bovine Perinatal Mortality

John Mee

Bovine perinatal mortality is an adding problem in dairy diligence internationally. The ideal of this study was to determine the threat factors associated with high and low herdposition shin mortality. Thirty herds with a history of either high (case) or low (control) shin mortality were signed. A herd- position questionnaire was used to gather information on operation practices likely to impact bovine perinatal mortality. The questionnaire was divided into four subsections dealing with pre-calving parentage, diet and body condition score, aboriginal contagious conditions) and calving factors. In case herds, pregnant cattle were less likely to be moved to the calving unit two or further days and more likely to be moved less than 12 hours pre-calving, they were also less likely to bear in groupcalving installations and their pins were more likely to admit intranasal or hypothermal reanimation. These operation procedures may beget social insulation and periparturient psychogenic uterine at on leading to dystocia, further weak pins taking reanimation and high perinatal shin mortality. The crucial finding is that calving, not pre-calving, operation appears to be the most important area of concern in herds with high perinatal mortality