Cazaban Christophe, Majo Masferrer Natalia, Dolz Pascual Roser, Nofrarias Espadamala Miquel, Costa Taiana, Gardin Yannick
Ceva Sante Animale, 10 avenue de la Ballastiere, 33500 Libourne, France
Centre de Recerca en Sanitat Animal (CReSA), UAB-IRTA, Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain.
Poult Sci. 2015 Sep;94(9):2088-93. doi: 10.3382/ps/pev230. Epub 2015 Jul 27.
Several causes may induce change and atrophy in the bursa of Fabricius (BF). Databases on BF standards are available from published studies, however, updated references are needed to adjust the BF standards to present changes in highly specialized broiler genetic lines. The aim of this study was to evaluate BF-related measurements (weight and dimensions) under controlled conditions that would mimic field situations. Chickens were kept in isolation, thus avoiding exposure to disease agents by vaccination or field infections. This study was conducted using male Cobb 500 commercial broilers from the same hatch and source. Absence of disease was confirmed throughout the study. Despite the presence of individual variations, a minimum bursa-to-body weight ratio standard of 0.11 is proposed in broilers from 7 to 42 days of age.
多种原因可能导致法氏囊（BF）发生变化和萎缩。已发表的研究中有关于BF标准的数据库，然而，需要更新参考文献，以便根据高度专业化的肉鸡遗传品系的当前变化来调整BF标准。本研究的目的是在模拟实际情况的可控条件下评估与BF相关的测量指标（重量和尺寸）。鸡只单独饲养，从而避免因接种疫苗或野外感染而接触病原体。本研究使用来自同一孵化场和来源的雄性科宝500商用肉鸡进行。在整个研究过程中均确认无疾病。尽管存在个体差异，但建议7至42日龄的肉鸡的最小法氏囊与体重比标准为0.11。
