Poultry Pathology Museum – 1 of 7
Posted by Anjum Andrabi on September 1st, 2008
Well developed comb of a healthy 25 week old Leghorn hybrid hen
The undeveloped comb of a culled pullet
Lice are infrequently present in backyard flocks and may depress production if infestation is severe
Blood sucking Ornithonyssus spp. mite
Ticks of genus Argas are vectors for Spirochetosis
Dermatomycosis characterized by grey scaly appearance of comb, wattles and non-feathered areas of the head
Pododermatitis (Bumble foot) as a result of wet litter. Obese cockerels and hens are susceptable to this condition which reduces fertility