Efficacy of prepartum vaccination against neonatal calf diarrhea in Nelore dams as a prevention measure.

ABSTRACT:

Background

Neonatal calf diarrhea (NCD) is the leading cause of calf morbidity and mortality in beef cattle. Cow's vaccination in last stage of pregnancy is one of the most important measures to mitigate the risk of NCD outbreaks. The aim of this study was to evaluate the efficacy of prepartum single dose vaccination against NCD, especially Bovine Rotavirus type A (BoRVA) and Bovine Coronavirus (BCoV), in Nelore dams and offspring. A total of 117 pregnant cows (n = 81) and heifers (n = 36) were distributed in two groups, vaccinated (VAC: cows = 40; heifers = 19) and non-vaccinated (NVAC: cows = 41; heifers = 17). Vaccination occurred between 60 to 50 days before the expected calving date with a single dose of a water-in-oil (W/O) vaccine, and NVAC group received a dose of saline so

SUBMITTER: Pinheiro FA 

PROVIDER: S-EPMC9394007 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature