Highly acute, contagious viral disease of gallinaceous birds worldwide, very similar in signs to classical fowl plague; clinically shows fever, somnolence, diarrhea, dyspnea with cyanotic comb and wattles, convulsions; mortality is nearly 100%; prevention is by vaccination.
Related terms
N 6.25, CP (crude protein)
Symbol for nitrogenous substances.
Naked necks, hackles fowl
A genetically determined feathering abnormality that is a breed trait of naked n...
Natural breeding (crossing)
Mode of reproduction using natural mating of males with females.
Natural light regimen
A lighting regimen determined by natural day length and intensity; used mainly i...
NE
Symbol for net energy.
Nests
Nest boxes used for egg laying in poultry houses; may be individual or group des...