Fusarium-Induced Osteochondrosis (Tibial Dyschondroplasia) in Chickens
1982
Walser, M. M. | Allen, N. K. | Mirocha, C. J. | Hanlon, G. F. | Newman, J. A.
Broiler chickens were started and maintained on rations containing 2%, 5%, and 10% grain contaminated with Fusarium roseum. There was mortality of 75% and 100%, respectively, in chicks fed 5% and 10% levels, and osteochondrosis was present in chicks which died at 12 to 17 days of age. Chicks on 2% or 3% F. roseum-contaminated grain survived the experimental period and osteochondrosis was well-developed in the proximal tibias of 85 or 90% of these chicks. The number of chondroclasts was reduced markedly in the affected bones. Defective chondroclasis may play a role in the pathogenesis of osteochondrosis associated with F. roseum.
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