Page 153 - Agriculture_Form_Three

Agriculture for Secondary Schools

Figure 6.10 (c): Flat worm/Liver fluke Figure 6.10 (d): Schistosoma

Table 6.3: Common types of internal parasites and their effects on the host
Parasite Host Disease/condition caused Control measure
Round Cattle, pigs, goats, In pigs: Use of
worm sheep, camels, • Ascariasis anthelmintics
poultry, dogs, cats, • Pneumonia
donkeys, horses • Hepatitis
and human beings • Unthriftness
In other livestock:
• Anaemia
• Diarrhoea
• Weight loss
• Enteritis
• Colitis
Tape Cattle, pigs, sheep In young animals cause: Use of
worm goats and human • Stunted growth and potbelly anthelmintics
beings • Diarrhoea
• Constipation
• Colic (obstruction of
intestines)
In adults may cause:
• Body loss
• Reduction in production
In pigs and human may cause:
• Serious disease conditions
Liver Cattle, sheep and • Retarded growth • Control snails
fluke goats • Loss of weight • Strategic use
• Anaemia flukicide
• Reduced production of milk • Grazing
• Diarrhoea management
• Damage of internal organs like • Monitoring for
the liver injection
• Death in severe situation

Student’s Book Form Three
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