Leaving Certificate Agricultural Science
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Transcript of Leaving Certificate Agricultural Science
Diseases of Beef Animals
Diseases of Beef animals include:•Tuberculosis (TB)•Stomach and Intestinal Worms.•Lungworms•Blackleg•Grass Tetany•Lice•Red Water Fever
Tuberculosis (TB) It affects all types of cattle, of all ages. Caused by Mycobacterium bovus Highly infectious Humans can also get this disease (A Zoonose)Symptoms Failure to Thrive Sweating Bad appearance
Advanced symptoms: Emaciation Coughing Fever and Death Prevention None really Don’t buy in stock Good farm hygiene No drinking from streamsTreatment Slow veterinary assistance for TB All affected animals are culled
Stomach Worms Cause: A nematode in the cow’s digestive tract.
Older cows get a resistance to stomach worms. Symptoms: Diarrhoea, failure to thrive, growth
restriction. Prevention: Proper grazing management,
leader follower system, dosing. Treatment: Dosed with a suitable nematicide.
Lung Worms (Hoose) Cause: Nematode in the lungs. Symptoms: Hoarse, husky cough, failure to
thrive. Prevention: Proper grazing management,
leader follower system, hoose vaccine. Treatment: Dosed with a suitable
nematicide, under veterinary supervision.
Blackleg Cause: Bacteria called Clostridium chanvoei.
Bacteria produce spores which can travel to muscle tissue. Animal can die within 24 hours of showing symptoms.
Symptoms: Lameness, swollen legs with black discolouration, high fever.
Prevention: Vaccine available, every six months. Treatment: None.