Poultry MAN Scientist P.M.S

CRD (Chronic Respiratory Disease)

Caused mainly by Mycoplasma gallisepticum (MG)

Mild respiratory signs: coughing, sneezing, mild air sac cloudiness

Lesions are limited to respiratory tract

Mortality low

CCRD (Complicated Chronic Respiratory Disease)

CRD complicated by E. coli (MG + E. coli)and others diseases

Severe respiratory disease with systemic infection

Thick yellow fibrin on air sacs, heart (pericarditis), and liver (perihepatitis)

Mortality moderate to high

Famous Riddle Finally Solved Scientists have identified ovocleidin-17 (OC-17) — a unique protein found only in chickens that triggers the rapid crystallization of calcium carbonate, forming strong eggshells.
Without OC-17, eggs as we know them couldn’t exist — meaning the chicken came first in evolutionary history!