Most important poultry diseases in the Caribbean - Cedric Lazarus, FAO/SLC - One Health ...
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Country 1 RANK DISEASE COMMENTS 1 Coccidiosis Only breeder birds are vaccinated 2 Colibacillosis Septicemia, pericarditis, perihepatitis, (colisepticemia, E.coli airsacculitis. infection) 3 Internal parasites In layers and turkeys mainly (Ascaridia galli, Heterakis gallinarium) 4 Omphalitis (navel ill, yolk sac Related to poor incubation or brooding infection) and infection by opportunistic bacteria 5 Infectious Bursal Disease Commercial vaccines used 6 Avian Encephalomyelitis Only breeder birds are vaccinated 7 Vitamin E deficiency Nutritional deficiency 8 Aflatoxicosis Caused by aflatoxins produced by Aspergillus species of molds on grain or bedding 9 Infectious Bronchitis Commercial vaccines used 10 Infectious Coryza In pullets and layers mainly (Avibacterium paragallinarum)
Country 2 RANK DISEASE COMMENTS 1 Marek’s Disease HVT vaccine used 2 Fowl Pox Some flocks vaccinated 3 Gumboro Disease Field vaccination 4 Chronic Respiratory Disease (airsaculitis) mycoplasmosis, E.coli 5 Gangrenous Dermatitis (probably secondary to immunosuppression due to mycotoxicosis) 6 Aspergillosis (was more common when mainly bagasse bedding was used) 7 Mycotoxicosis (Toxins of Toxins of Aspergillosis flavus, A. Aspergillosis flavus, A. parasiticus, Fusarium etc in feed and parasiticus, Fusarium etc) grains 8 Intestinal parasites (mainly ascaridiasis) 9 External parasites (mites and lice) 10 Pasteurellosis 11 Avian encephalomyelitis (epidemic tremor) (not seen recently)
Country 3 RANK DISEASE COMMENTS 1 Colibacillosis complex diarrhea, septicaemia 2 Cellulitis As a result of scratches and bruises 3 Omphalitis/Yolk saccculitis from improper brooding techniques 4 Coccidiosis E. tenella for example 5 Internal parasites Round worms (layers) 6 External parasites mites 7 Chronic Respiratory Disease CRD 8 Aspergillosis Due to poor quality litter 9 10 11
Country 4 RANK DISEASE COMMENTS 1 Colibacillosis 2 Pasteurellosis 3 Mycoplasmosis 4 IBD vaccination 5 Coccidiosis Various species of Eimeria 6 Avian metapneumovirus Swollen head syndrome in broilers/turkey (Paramyxoviridae) rhinotracheitis. Vaccination tried. 7 Inclusion body Adenovirus hepatitis/hydropericardium syndrome 8 External parasites Red mite (Dermanyssus), Feather mite (Megninia)
Country 5 RANK DISEASE COMMENTS 1 Salmonella 2 Newcastle Disease Vaccination 3 Gumboro’s Disease Vaccination 4 Marek’s Disease Layers vaccinated 5 M. gallisepticum CRD 6 M. synoviae 7 E. coli colibacillosis
Country 6 RANK DISEASE COMMENTS 1 Coccidiosis 2 Inclusion body hepatitis Avian adenovirus 3 Newcastle Disease 4 Gumboro Disease or IBD 5 Chronic Respiratory Disease M. gallisepticum infection 6 Salmonellosis S. Enteritidis, S. Kentucky etc 7 Fowl Pox
Vaccination in the poultry sector in the region • Vaccination is based on the prevailing disease situation, prevalence, cost of the disease, availability of vaccine and the cost/benefit of using vaccine
Vaccination in most countries is routinely practised against: • ND • IBD • IB • Marek’s Disease • Fowl Pox
Vaccination is practised in a few countries against: • Coccidiosis • Mycoplasma • E. coli
Vaccine delivery systems used in the region includes: • In ovo (hatchery) Marek’s, IBD • Spray (hatchery and field) (IB, ND, Coccidiosis) • Subcutaneous or intramuscular (Marek’s) • Wing web (pox) (Field) • Drinking water on the farm (IB, ND, IBD)
Other conditions mentioned as having negative impact on the industry: • Spiking mortality syndrome in broilers • Fatty liver haemorrhagic syndrome • Leg problems
Other conditions mentioned as having negative impact on the industry: • Heat stress (high temp+ high Relative Humidity=deadly combination for broilers) • Nutritional deficiency • *Management deficiencies
Conclusion • Vaccination has been successful in reducing the prevalence of several diseases to almost zero in may instances
Conclusion • The other diseases and conditions for which there are no vaccines are controlled and kept at low levels with good management and biosecurity practices
Acknowledge • Thanks to all the poultry vets in the 6 countries who supplied the information and responded at very short notice. • (Barbados, TT, Guyana, Belize, Jamaica and Suriname)
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