Lec. 4 - Dairy Calf Health Flashcards
What percent of calves are affected with diarrhea and how many die?
24% affected, 57% die
How much does BRD cost us?
about $2,000
Are pathogens always present?
Yes, when the immune system can’t keep them under control is when the calves get sick
What is the immune system of calves?
less responsive than the adult immune system, naive, and easily overwhelmed
What are scours?
The acute appearance of watery feces, caused by pathogens in the intestinal tract that lead to decreased water absorption.
What are causative agents of calf diarrhea?
e. coli, salmonella, rotavirus, coronavirus, crypto
What does BRD stand for?
Bovine respiratory disease
What are the causative agents of BRD?
Pasteurella haemolytica, pasteurella multocidam mycoplasma dispar
What does a calf with respiratory disease look like?
lethargy, cough, eye/nasal discharge, ear droop or tilt, fever
What are risk factors for disease?
Inadequate colostrum, inadequate caloric intake, stress
Risk factors to BRD?
noxious gases, dust, mold in the air, previous diarrhea history
