The book is a comprehensive guide that delves into the essential concepts and laboratory practices of microbiology as applied to veterinary science. Designed for undergraduate and postgraduate veterinary students, this textbook presents a balanced blend of theoretical knowledge and practical applications, fostering diagnostic proficiency and critical understanding of microbial diseases in animals.

The book begins with an introduction to the clinical microbiological laboratory and progresses through the principles of specimen collection, bacterial isolation, Gram staining, and biochemical identification techniques. It emphasizes the role of drug sensitivity testing and molecular diagnostics in effective therapeutic planning.

An extensive portion of the book covers the classification, morphology, and pathogenic characteristics of significant bacterial genera such as Staphylococcus, Streptococcus, E. coli, Salmonella, Brucella, Mycobacterium, and others. It also explores advanced immunological diagnostic methods including ELISA, agglutination, and haemagglutination-inhibition tests.

Special sections are dedicated to emerging and re-emerging diseases, transboundary animal diseases, and their implications for global trade. The book concludes with appendices highlighting viral and bacterial diseases of major domestic animals and birds.

With clear explanations, updated content, and a structured approach aligned with current curricula, this textbook is an indispensable resource for students, educators, and professionals in the field of veterinary microbiology.

B. Puvarajan, M.V.Sc., Ph.D. PGDEVP. PGDAW, Associate Professor and Head, Department of Veterinary Microbiology, Veterinary College and Research Institute, Orathanadu-614625, Thanjavur, Tamilnadu

J. Vijay Anand, Assistant Professor, Department of Veterinary Physiology and Biochemistry
Veterinary College and Research Institute, Orathanadu-614625, Thanjavur, Tamilnadu

1.Orientation to Clinical Microbiological Laboratory
2.Collection, preservation and transport  and processing of  specimens
3.Isolation and identification of bacteria  by Gram’s staining and  cultural/biochemical characteristics-I
4.Isolation and identification of bacteria  by Gram’s staining and  cultural/biochemical characteristics-II
5.Drug sensitivity and rationale for Therapy
6.Molecular Methods in Diagnostic Microbiology
7.AgarGelPrecipitation Test
8.Enzyme Immuno Assay
9.Agglutination Test
10.Haemaggulitination and Heamaggulitination-Inhibition Test
11.Introduction and history of Microbiology
12.Classification and Nomenclature of Bacteria
13.Morphology and Structure of Bacteria
14.Staphylococci
15.Streptococci
16.Bacillus
17.Clostridium
18.Listeria
19.Erysipelothrix
20.Mycobacteria
21.Actinomycetes
22.Nocardia
23.Dermatophilus
24.Escherichia coli
25.Klebsiella
26.Salmonella
27.Yersinia
28.Proteus and providencia
29.Pseudomonas
30.Pasteurella and mannheimia
31.Actinobacillus
32.Haemophillus
33.Brucella
34.Vibrio and Related Organism
35.Campylobacter 
36.Bordetella
37.Moraxella bovis
38.Bacteroides
39.Dichelobacter nodosus
40.Spirochaetes
41.Serpulina (Treponema) Species
42.Borrelia
43.Brachyspira
44.Mycoplasma
45.Coxiella burnetti
46.Ehrlichia (Heartwater – Cowdriosis)
47..Anaplasma.
48..Rickettsiales.
49..Chlamydia and Chlamydophila species.
50..Emerging and Reemerging diseases.
51..Trans-boundary animal disease and their impacts on international trade.
52..Specimens to be collected and tests conducted in diagnosing certain important Microbes.
.APPENDIX.
.Viral diseases of animals and birds.
.Viral diseases of sheep and Goat.
.Viral diseases of swine.
.Viral diseases of horse.
.Viral diseases of dogs.
.Viral diseases of Poultry.
.Bacterial diseases of animals and birds.