title: Susceptibility of broiler chickens to Clostridium botulinum type C toxin.
abstract: As broiler chickens aged during the first eight weeks of life, they decreased in susceptibility to the lethal effects of Clostridium botulinum type C toxin. Eight-week-old broilers were 2,000 times less susceptible to the lethal effects of the toxin than hatched chicks. Different broiler crosses showed similar susceptibility to the lethal effects of type C toxin at seven weeks of age, but 2.5 times more toxin was required to produce lethality by oral inoculation than was required by subcutaneous inoculation.
mesh_terms: D000367:Age Factors; D000818:Animals; D001905:Botulinum Toxins / Q000096:biosynthesis / Q000633:toxicity*; D001906:Botulism / Q000209:etiology / Q000401:mortality / Q000662:veterinary*; D002645:Chickens / Q000235:genetics; D003014:Clostridium botulinum / Q000378:metabolism; D003433:Crosses, Genetic; D011201:Poultry Diseases / Q000209:etiology* / Q000401:mortality; D013045:Species Specificity
chemical_list: D001905:Botulinum Toxins