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应用不同的形态测量肠粘膜方法和与肉在Eimeria挑战下表现的相关性.

Bruna Luiza Belote1, Igor Soares2, Adrien Wilhelm Dilger Sanches3

  • 1Department of Veterinary Science, Federal University of Parana, Curitiba, Parana, Brazil; ISI Institute, Curitiba, Parana, Brazil.

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概括

肠道小的测量本身并不能预测动物的表现. 评估炎症的I See Inside (ISI) 评分与料转化率 (FCR) 相对应,表明其在评估肠道健康和性能方面的价值.

关键词:
发生菌病 (coccidiosis) 的肠道健康 肠道健康组织学 组织学这是一个指数指数指数指数指数指数.肠道损伤 肠道损伤

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科学领域:

  • 动物科学动物科学
  • 兽医病理学 兽医病理学
  • 胃肠病学 胃肠病学

背景情况:

  • 肠 (VH,VW) 和密室 (CD,CW) 传统上是测量以评估营养吸收表面积.
  • 这些形态测量可以忽略炎症变化和不成熟细胞的存在,这会对肠道功能和动物表现产生负面影响.
  • 现有的方法可能无法完全捕捉肠道结构,炎症和动物技术结果之间的复杂关系.

研究的目的:

  • 为了比较传统的villi/crypt形态测量与I See Inside (ISI) 评分方法.
  • 探索这些评估方法与 brojlers 的畜牧技术性能之间的相关性.
  • 确定ISI评分是否比单独的形态测量更准确地反映了肠道健康及其对表现的影响.

主要方法:

  • 肉被分为无挑战性 (NC) 和艾梅里亚挑战性 (CH) 组.
  • 在22天内采集了体样本进行组织学分析,测量了小的高度 (VH),小的宽度 (VW),密室深度 (CD),密室宽度 (CW),VH:CD比率和小吸收表面 (VAS).
  • 使用ISI方法评分相同的小,评估炎症过程的8个参数.

主要成果:

  • 与未受挑战 (NC) 组相比,受挑战 (CH) 组的ISI分数更高,VW,CD和CW增加,VH,VH:CD比率和VAS减少.
  • 维利/密室形态测量与动物技术性能指标没有相关性.
  • 埃梅里亚卵囊的存在和较高的ISI总分数与料转换率 (FCR) (P <0.05) 有积极的相关性,表明表现更差.

结论:

  • 由于免疫过程而增加的状体大小并不一定等同于改善肠道功能或动物表现.
  • 评估肠道变化的类型的ISI评分系统显示,对畜牧技术表现有直接影响.
  • ISI评分比单一的表面评估更有效的工具来评估肠道健康和预测受挑战的肉的动物表现.