A

a.c.
Abomasal fluids
Abortifacient
Abscessation
Adjuvant
Aerophobia
Agalactia
Agar gel diffusion
Agar gel immunodiffusion test (AGIDT)
AGID
Allantochorion
Alphitobius diaperinus, Panzer
Ammon's horn
Anaphylaxis
Anorexia
Antibody
Antigen
APHCA
Aspermia
Atlantal
Attenuated strains
Attenuated (vaccine)
Autoagglutination
Axoplasm