An epidemiological study of factors affecting serum IgG levels in dairy calves.
Serum IgG was used to evaluate the immune status of calves up to 180 days of age in 300 Norwegian dairy herds. Several factors were found to significantly affect the levels. Among these were geographical district, season, and factors related to housing and feeding.
D000375:Aging; D000821:Animal Feed; D000818:Animals; D001947:Breeding; D002417:Cattle / Q000276:immunology*; D005260:Female; D006799:Housing, Animal; D007074:Immunoglobulin G / Q000032:analysis*; D008297:Male; D010298:Parity; D011247:Pregnancy; D012621:Seasons; D012737:Sex Factors
D007074:Immunoglobulin G