Dohms J E, Cloud S S
Avian Dis. 1982 Jan-Mar;26(1):89-96.
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.
随着肉鸡在生命的前八周内生长，它们对C型肉毒梭菌毒素致死作用的易感性降低。八周龄的肉鸡对该毒素致死作用的易感性比刚孵化出的雏鸡低2000倍。不同的肉鸡杂交品种在七周龄时对C型毒素致死作用的易感性相似，但通过口服接种产生致死所需的毒素量是皮下接种所需量的2.5倍。
