General Parasitology and Helminthology: Pathogenesis and clinical signs

Pathogenesis and clinical signs

PATHOGENESIS AND CLINICAL SIGNS

Young birds are more susceptible (1 to 3 months of age) than the adults.
Dietary deficiencies such as vitamin A, B and B₁₂, various minerals and proteins leads to heavy infection.
Chicken over 3 months are more resistant to infection and this may be accompanied with increase in goblet cells number in gut mucosa during this age.
Marked lesions are produced when large number of young parasite penetrate into duodenal mucosa may cause severe haemorrhagic enteritis.
Birds become anaemic and suffer from diarrhoea. Affected birds become unthrifty, markedly emaciated and egg production is decreased. In heavy infection, intestinal obstruction may occur.

Ascaridia galli-chicken

Last modified: Tuesday, 19 June 2012, 7:38 AM

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VPA 211: General Veterinary Parasitology and Helminthology (3+1)

Pathogenesis and clinical signs

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