Collins J B, Shaver Amanda O, Schaye Etta S, Volpe Tom, Nunn Leonardo R, Zamanian Mostafa, Andersen Erik C
Department of Biology, Johns Hopkins University, Baltimore, Maryland, United States.
Department of Molecular Biosciences, Northwestern University, Evanston, Illinois, United States.
MicroPubl Biol. 2024 Aug 7;2024. doi: 10.17912/micropub.biology.001197. eCollection 2024.
and are the most common and economically impactful nematode parasites of commercial poultry. These infections rarely cause clinical disease, but reduction in feed conversion efficiency is detected. To determine if feed conversion efficiency reductions correlate with any physiological measures independent of clinical disease, we determined if ascarid infections correlate with changes in the weights of the small intestine, liver, or total animal weight (quantitative measures of animal health). No correlation between parasite burden and these metrics were observed, supporting the concept that feed conversion is the only production metric impacted by ascarid infections.
[蛔虫属]和[异刺线虫属]是商业家禽中最常见且对经济影响最大的线虫寄生虫。这些感染很少引发临床疾病，但会检测到饲料转化率降低。为了确定饲料转化率降低是否与任何独立于临床疾病的生理指标相关，我们测定了蛔虫感染是否与小肠重量、肝脏重量或动物总体重的变化（动物健康的定量指标）相关。未观察到寄生虫负荷与这些指标之间存在相关性，这支持了饲料转化率是受蛔虫感染影响的唯一生产指标这一概念。
