Antimicrobial therapy in case of calf diseases

Question 1

indications for use of antimicrobials in calf diarrhea?

Answer 1

bacterial diarrhea with Mixed infections
<4 days old calves ETEC
Salmonella enterica

So, Bacterial diarrhea of calves is caused by either E. coli; Salmonella spp.

Question 2

Bacteriological culturing in diarrheic patients is not indicated, except to

Answer 2

identify salmonellae

Question 3

It is Contradictory to treat diarrheic patients with antimicrobials except in case of

Answer 3

systemic signs (bacteremia) in which case systemic admin. of AB is indicated.

Question 4

Recommendations for calf AB treatment.
What AB for septicemia?

Answer 4

sulfonamide+trimethoprim

Question 5

Recommendations for calf AB treatment.
What AB for systemic signs+diarrhea?

Answer 5

amoxicillin
or
amoxicillin/clavulanic acid

Question 6

Recommendations for calf AB treatment.
What AB for bacterial pneumonia including mycoplasma spp.?

Answer 6

tetracycline