a)         Bacterial diseases – anthrax, H.S., B.Q., Brucellosis, T.B., Actinomycosis, leptospirosis, salmonellosis, contagious pleuropneumonia, calf pneumonia, tetanus, entero toxaemia, bacillary haemoglobinuria, naval ill, foot rot.
b)         Viral diseases – R.P., F.M.D., Pox (cow pox, sheep pox, goat pox, fowl pox etc.) Rabies, bovine malignant catarrh, mucosal disease complex, ephemeral fever, mycoplasma, African horse sickness, ranikhet, Marek’s disease, pulloram disease, CRD.
c)         Fungal diseases – Ring worm, Aflatoxicosis, Fungal mastitis.
d)         Parasitic diseases –

1. Protozoan diseases – Anaplasmosis, Theilariasis, Babesiosis, Surra, Leishmaniasis.
2. Internal Parasitic diseases – Liver fluke, Amphistomiasis, Ascariasis, Tapeworm, Parasites of digestive tract, Schistosarcosis, Coccidiosis.
3. External parasitic diseases- Nasal granuloma, filarial, myasis, mange, ticks, lice infestation.

1. Sampling of blood, faeces, urine, milk etc. for laboratory diagnosis.
2. Introduction to veterinary laboratory diagnosis