Research Summary - 2

Associations of weather conditions on bovine respiratory disease risk in stocker cattle

Date/Time: 9/13/2024    14:45
Author: Sarah  Capik
Clinic: Tumbleweed Veterinary Services, PLLC
City, State, ZIP: Amarillo, TX  79118

S.F. Capik, DVM, PhD, DACVPM (Epi) 1 ; B.T. Johnson, DVM, PhD 2 ;
1Tumbleweed Veterinary Services, PLLC, Amarillo, TX 79118
2Texas Tech University School of Veterinary Medicine, Amarillo, TX 79106

Introduction:

Bovine respiratory disease remains a significant issue facing both beef and dairy cattle production systems. Among the risk factors that impact this multifactorial disease, the influence of weather in the early receiving period remains unclear. The objective of this project was to explore the relationship between weather conditions near arrival at a stocker facility on the subsequent bovine respiratory disease risk in medium to high risk stocker calves over the first 30 days post-arrival.

Materials and methods:

Detailed records from a large stocker operation in the Great Plains (n= 1,235 lots over 6 years (2014-2019) were analyzed to evaluate the influence of 3- and 6-day average weather conditions including temperature, humidity, wind speed, and precipitation on lot level BRD-specific morbidity and mortality via generalized linear mixed effect models with year included as a random effect.

Results:

This analysis is ongoing and will be completed by August 2024.

Significance:

This data will improve our understanding of the relationship between weather and BRD risk which may allow for preemptive changes in management to reduce risk when certain weather patterns are expected.