Elfadil A A, Vaillancourt J P, Meek A H, Gyles C L
Department of Population Medicine, Ontario Veterinary College, University of Guelph, Canada.
Avian Dis. 1996 Jul-Sep;40(3):677-89.
This study investigated the associations among cellulitis and hatchery, farm, and abattoir factors. Forty-four broiler flocks from 24 farms located in southern Ontario were followed from hatching to processing. Poisson regression was used to analyze the data. Cellulitis as a count outcome (CELLCOUNT) was significantly associated (P < or = 0.05) with the hatchery of origin, strain of birds, farm size, type of litter, lighting system, total down time, prevalence of abdominal scratches, Escherichia coli-related conditions (SEROSITIS), ascites, and valgus varus deformity. However, only farm size, abdominal scratches, SEROSITIS, ascites, and valgus varus deformity were significant (P < or = 0.05) after adjusting for clustering. No significant associations were found between cellulitis and source of eggs, sex, average bird weight, feed company, growth promoter, or stocking density. Factors significantly associated with cellulitis in this study could be considered as potential risk factors for cellulitis in broiler chickens in southern Ontario.
本研究调查了蜂窝织炎与孵化场、养殖场及屠宰场因素之间的关联。对安大略省南部24个农场的44个肉鸡群从孵化到加工进行了跟踪。采用泊松回归分析数据。作为计数结果的蜂窝织炎（CELLCOUNT）与起源孵化场、鸡的品种、农场规模、垫料类型、照明系统、总停机时间、腹部抓伤患病率、大肠杆菌相关病症（SEROSITIS）、腹水及内外翻畸形显著相关（P≤0.05）。然而，在对聚类进行校正后，只有农场规模、腹部抓伤、SEROSITIS、腹水及内外翻畸形具有显著性（P≤0.05）。未发现蜂窝织炎与种蛋来源、性别、平均鸡体重、饲料公司、生长促进剂或饲养密度之间存在显著关联。本研究中与蜂窝织炎显著相关的因素可被视为安大略省南部肉鸡蜂窝织炎的潜在风险因素。
