WELCOME TO POULTRY TECHNICAL MEET

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1 WELCOME TO POULTRY TECHNICAL MEET

2

3 What is a disease Any condition that results in deviation from normal function

4 How do diseases occur? AGENT BACTERIA OR VIRUS Carrier ENVIRONMENT HOST

5 ETIOLOGY Infectious Agents Bacteria Viruses Parasites Fungi Non-infectious agents Chemical Physical Lack or excess of certain vitamins and minerals Toxins

6 General Signs of Disease Poor appetite Huddling Depression Poor uniformity Ruffled feathers Coughing, sneezing, Oculo-nasal discharge, difficult breathing Bloody or wet litter Increased mortality Colour change (comb & wattle)

7 Effects of Disease Decreased reproduction Decreased productivity Increased mortality Decreased cash-flow (PROFIT) Market loss Flock loss

8 Marek's Disease Paralysis of legs, wings, neck Enlargement of visceral organs like liver spleen etc. Tumour of visceral organs

9 Marek's Disease

10 Prevention and control Marek's disease Prophylactic vaccination At the age of 2 nd or 3 rd day Marek's vaccine (bivalent strain) subcutaneous

11 Infectious Laryngotracheitis ILT Difficultly in respiration Blood in trachea

12 Prevention and control ILT Prophylactic vaccination 1 st vaccine 42 nd day- eye drop 2 nd vaccine - 84 th day eye drop

13 Infectious Bronchitis (IB) Respiratory problems Increasing number of shell less eggs Increasing broken eggs Miss- shaped eggs

14 Prevention and control Prophylactic Vaccination 5 th day IB + Lasota oral or eye drop 30 th day IB + Lasota (double dose)- drinking water 98 th day IB (H120) double dose in drinking water In laying birds vaccination of IB (H120) double dose through drinking water in every 2 months interval

15 FOWL POX Development of nodular proliferative Skin lesions on the featherless parts of the body Plug formation in opening of trachea

16 CLINICAL SIGNS Fowl Pox Appearance of nodular lesions Combs Wattles Eyelids other unfeathered areas of the body.

17 PREVENTION AND CONTROL Fowl Pox Prophylactic vaccination 1 st Fowl pox vaccine 63 rd day 2 nd dose 119 th day

18 VVND Two types High pathogenic Low pathogenic Respiratory problem Comb - black in color Drop in egg production Damaged ovary High mortality

19 VVND

20 Prevention and control VVND Maintain biosecurity Prophylactic vaccination 5 th day ND+VVND subcutaneous 56 th day- VVND (special)- subcutaneous 126 th day - VVND (special)- subcutaneous

21 RANIKHET DISEASE New castle disease Respiratory signs Often associated with nervous and digestive disorders High mortality.

22 ND/RD Increased respiration Weakness Torticolis Paralysis of legs Proventricular hemorrhages

23 Prevention and control Prophylactic vaccination Lentogenic strain (F or B1) - day old chicks eye or nasal drop 5 th day IB + Lasota oral or eye drop 30 th day IB + Lasota (double dose)- drinking water Mesogenic strain (R2B)- 70 th day of age 133 rd day ND killed - subcutaneous In laying birds vaccination of lasota or ND clone vaccine through drinking water in every 2 months interval ( every month in summer)

24 INFECTIOUS CORYZA FOWL CORYZA Serous to mucoid nasal discharges with foul smelling Facial edema Conjunctivitis Swollen wattles

25 Prevention and control FOWL CORYZA Prophylactic vaccination First Coryza vaccine- 38 th day- subcutaneous Second vaccine 80 th day subcutaneous

26 Mycoplasma (CRD) Respiratory problems Mucous in trachea Cloudy airsacs Cake formation in abdominal cavity

27 CRD

28 Gangrenous Dermatitis Blood below the feathers Generally grower birds

29 GIZZAED ERROSION Blood In gizzard

30 CHICKEN INFECTIOUS ANEMIA Ruffled feathers Loss of body weight

31 BACILLARY WHITE DIARRHOEA PULLORUM DISEASE Weakness Loss of appetite Chalky white diarrhoea Stained greenish brown(sometimes) in and around vent

32 Coccidiosis More in deep litter system Bloody diarrhoea (blood in feces) Weight loss Huddling Enteritis Mortality in young

33 Fatty liver syndrome Due to high energy diet.

34 Sources of Pathogens 1. Introduction of diseased or carrier animals 2. Visitors 3. Introduction of contaminated materials 4. Inappropriate disposal of carcasses 5. Contaminated water supplies 6. Vehicles 7. Wildlife, rodents, wild birds, insects, pets 8. Air-borne transmission 9. Vertical transmission

35 Biosecurity Practices 1. Control exposure to diseased or carrier animals 2. Control visitor access 3. Ensure that fomites (objects) are clean 4. Dispose of carcasses appropriately 5. Check feed and water contamination 6. Control exposure to insects 7. Address vertical transmission 8. Sanitation and Disinfection

36 Sanitation and Disinfection Keep farm clean Boot bath (disinfectant) Boots for on farm only Spray car/truck tires Clean floor mats Wash all incoming equipment Best to not borrow equipment

37 Biosecurity

38 THANKYOU

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