Poultry Diseases and Vaccination: Disease Causes, Newcastle Disease and Bird Flu (Part 1)
Explore “Disease Causes, Newcastle Disease and Bird Flu” in this Poultry Diseases and Vaccination lesson. Part 1 of the five-part series brings together the source material and lesson topics. Use the contents links to find a section, read the notes, and consult the complete original teaching slides below.
Lesson topics
- Common Poultry Diseases
- What is a disease
- How do diseases occur?
- Infectious Agents
- General Signs of Disease
Contents
- Read the original document
- Common Poultry Diseases
- What is a disease
- How do diseases occur?
- Infectious Agents
- General Signs of Disease
- Viral diseases
- Bacterial diseases
- Protozoan diseases
- Parasitic disease
- Nutritional deficiency diseases
- miscellaneous
- New Castle Disease
- • Depression, prostration, loss of appetite
- The neurotropic form of the disease is clinically manifested by ataxia, opisthotonus, torticolis, paresis
- Greenish diarrhoea
- Post Mortem Lesions
- Pro ventricular Hemorrhage
- diphtheritic ulcers on the intestine
- enlargement and haemorrhages of caecal tonsils
- Diagnosis
- Prophylactic vaccination
- Avian Influenza (bird flu)
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Read the original source document
Common Poultry Diseases and Vaccination: original teaching slides for this study series.
Common Poultry Diseases
Common Poultry Diseases
What is a disease
What is a disease Any condition that results in deviation from normal function
How do diseases occur?
How do diseases occur? ENVIRONMENT
Infectious Agents
Infectious Agents Non-infectious agents Parasites Lack or excess of certain vitamins and minerals
General Signs of Disease
General Signs of Disease Poor appetite Depression Runting/stunting poor uniformity Ruffled feathers Coughing, sneezing, oculo-nasal discharge, difficult breathing Bloody or wet litter Increased mortality
Viral diseases
Viral diseases Marek’s disease Ranikhet ( new castle) disease Infectious bursal disease (IBD) or gumboro Infectious bronchitis Avian encephalomyelitis Infectious laryngotracheitis (ILT) Lymphoid leucosis Inclusion body heapatitis Infectious viral arthritis Egg drop syndrome
Bacterial diseases
Bacterial diseases Omphalitis Fowl coryza Chronic respiratory disease Fowl typhoid Fowl paratyphoid Fowl cholera ( pasturellosis) Avian tuberculosis Avian paratuberculosis Coliform infection Clostridial infections (botulinum)
Protozoan diseases
Protozoan diseases Coccidiosis Avian trichomoniasis Avian maleria FUNGAL DISEASES: ASPERGILLOSIS OR BROODER PNUMONIA, AFLATOXICOSIS.
Parasitic disease
Parasitic disease 1) Internal parasites: round worms. Tape worms, gape warms, spirachetosis. 2) External parasites: lice, mites, bugs, fleas.
Nutritional deficiency diseases
Nutritional deficiency diseases Nutrional roup Polyneuritis Curled toe paralysis Dermatitis Encephalo malacia Haemarrhagic disease Fatty liver kidney syndrome Other mineral deficiencies
miscellaneous
miscellaneous Cannibolism Pasty vents in chicks Crop impaction Cage layer fatigue
New Castle Disease
New Castle Disease It is one of the most dreaded diseases of poultry cause very heavy mortality at a very high speed. caused by paramyxo virus classified into many serotypes based on the virulence. Chicken is the natural host but vast majority of birds are susceptible to infection including ducks and turkey .
• Depression, prostration, loss of appetite
Depression, prostration, loss of appetite Greenish/yellowish diarrhea Nervous signs like in coordination, twitching of Mortality heavy in acute outbreak
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The neurotropic form of the disease is clinically manifested by ataxia, opisthotonus, torticolis, paresis
The neurotropic form of the disease is clinically manifested by ataxia, opisthotonus, torticolis, paresis and paralysis of legs.
Greenish diarrhoea
Greenish diarrhoea
Post Mortem Lesions
Post Mortem Lesions Pin pointed hemorrhages at the tip of proventricular glands Hemorrhagic/ diphtheritic ulcers on the intestine and caecal tonsils
Pro ventricular Hemorrhage
Pro ventricular Hemorrhage
diphtheritic ulcers on the intestine
diphtheritic ulcers on the intestine
diphtheritic ulcers on the intestine
diphtheritic ulcers on the intestine
enlargement and haemorrhages of caecal tonsils
enlargement and haemorrhages of caecal tonsils
Diagnosis
Diagnosis Typical lesions are diagnostic. Laboratory diagnosis with hemagglutination and Inhibition tests can be used.
Prophylactic vaccination
Prophylactic vaccination Lentogenic strain (F or B1) chicks(5 -7 d) intranasal intraocular route drinking water. Mesogenic strain (R2B) intramuscular Subcutaneous route.
Avian Influenza (bird flu)
Avian Influenza (bird flu) Highly Pathogenic Avian Influenza(HPAI) is a highly lethal systemic disease affecting vast majority of birds. caused by the Influenza Type A virus. H5N1 causes bird flu Because of the zoonotic as well as pandemic potential, the disease gained much public health importance.
Review questions and answers
What are the key points about What is a disease?
What is a disease Any condition that results in deviation from normal function
What are the key points about Infectious Agents?
Infectious Agents Non-infectious agents Parasites Lack or excess of certain vitamins and minerals
What are the key points about General Signs of Disease?
General Signs of Disease Poor appetite Depression Runting/stunting poor uniformity Ruffled feathers Coughing, sneezing, oculo-nasal discharge, difficult breathing Bloody or wet litter Increased mortality
What are the key points about Viral diseases?
Viral diseases Marek’s disease Ranikhet ( new castle) disease Infectious bursal disease (IBD) or gumboro Infectious bronchitis Avian encephalomyelitis Infectious laryngotracheitis (ILT) Lymphoid leucosis Inclusion body heapatitis Infectious viral arthritis Egg drop syndrome
What are the key points about Bacterial diseases?
Bacterial diseases Omphalitis Fowl coryza Chronic respiratory disease Fowl typhoid Fowl paratyphoid Fowl cholera ( pasturellosis) Avian tuberculosis Avian paratuberculosis Coliform infection Clostridial infections (botulinum)
More lessons from this document
- Common Poultry Diseases and Vaccination — Part 1
- Common Poultry Diseases and Vaccination — Part 2
- Common Poultry Diseases and Vaccination — Part 3
- Common Poultry Diseases and Vaccination — Part 4
- Common Poultry Diseases and Vaccination — Part 5
Conclusion
The important points in Common Poultry Diseases should be reviewed alongside the definitions, examples and comparisons given above. Continue with the other four articles to cover the rest of the source material.