VPA 221: Veterinary Entomology and Acarology (1+1)

SARCOPTIC MANGE IN DOG

Predilection site

• Ear, muzzle, face, elbows, inguinal / axillary region

Symptoms

• 1^st sign erythema, papule formation, rupture- encrustation of lymph, scale, formation, pruritis, alopecia
• Then skin is dry & thickened with intense pruritis, results in self inflicted trauma – secondary infection (pyoderma) /self mutilation occurs
• After primary infection, dogs get sensitized and scratch even before 1^st signs are seen
• In neglected cases whole skin surface is involved, progressive weakness, emaciation and strong sour odour. They become cachectic & even die

Diagnosis

• Scratch reflex when ears are rubbed
• Mostly intense itching is seen
• Highly contagious, so all animals in contact are affected
• Examination of deep skin scraping

Treatment

• Benzye benzoate emulsion
• Tetmosol (Tetraethylthiuram monosulphide) - 5%
• 20% Tetmosol soap as prophylaxis
• Carbaryl shampoos
• Overmectin 200µg/kg .Bwt

Control

• Supportive nutrition / Good hygiene in animal quarter / Disinfec animal houses & utensils