种鸽感染毛滴虫对乳鸽生长性能、胴体性能和免疫功能的影响

doi:10.16431/j.cnki.1671-7236.2022.04.028

摘要/Abstract

摘要： 【目的】研究种鸽感染毛滴虫对乳鸽的危害,为鸽场毛滴虫病的防治提供参考。【方法】分别选择18对未感染和18对感染毛滴虫的种鸽为对照组和试验组,每对种鸽哺育2只乳鸽,试验期28 d,统计乳鸽的死亡率、生长性能和胴体性能,以及免疫器官指数和抗体水平等生化指标。【结果】试验组乳鸽的口腔毛滴虫数量显著高于对照组(P<0.05),且虫株数量随乳鸽日龄增长而增长;试验组乳鸽死亡率为26.92%,显著高于对照组(P<0.05);试验组乳鸽1~7日龄的平均日增重显著低于对照组(P<0.05),但出栏重和胴体性能无显著差异(P>0.05);毛滴虫可造成口腔黏膜、胸腺、肝脏和脾脏等组织出现明显病理损伤,血液中白蛋白(ALB)、谷丙转氨酶(ALT)和谷草转氨酶(AST)活性显著升高(P<0.05),可溶性抗原CD8(sCD8)水平显著降低(P<0.05)。【结论】综上,种鸽感染毛滴虫后可通过哺喂鸽乳的过程导致乳鸽感染,引起乳鸽肝脏和脾脏等组织出现明显病理损伤,免疫功能下降,死亡率升高。

关键词: 鸽; 毛滴虫; 生长性能; 胴体性能; 免疫功能

Abstract: 【Objective】 The purpose of this experiment was to study the harm to squab caused by Trichomonas gallinae infection of breeding pigeons and provide reference for prevention and control of Trichomonas gallinae disease in pigeon farm.【Method】 Eighteen pairs of uninfected and eighteen pairs of infected pigeons were selected as control group and experimental group,and each pair of pigeons fed two squabs.The experiment lasted for 28 days.The death rate,growth performance,carcass performance,immune organ index and antibody levels of squabs were measured.【Result】 The number of Trichomonas gallinae in experimental group was significantly higher than that in control group (P<0.05),and it was increased with the age of squabs.The death rate of squab in experimental group was 26.92%,which was significantly higher than that in control group (P<0.05).The average daily gain of squabs in experimental groups from 1 to 7 days was significantly lower than that in control group (P<0.05),but there were no significant differences in outbound weight and carcass performance (P>0.05).Trichomoniasis could cause pathological damage to oral mucosa,thymus,liver and spleen,and the contents/activities of ALB,ALT and AST in blood were significantly increased (P<0.05),while the level of sCD8 was significantly decreased (P<0.05).【Conclusion】 Infection of Trichomonas gallinae in breeding pigeons could cause squab infection,cause obvious pathological damage to the tissues such as liver and spleen of squab,reduce immunity of squab,and increase mortality of squab.

Key words: pigeon; Trichomonas gallinae; growth performance; carcass traits; immune performance

中图分类号:

S836

边世雄, 李云雷, 倪爱心, 葛平壮, 王园美, 宗云鹤, 韩鹏敏, 赵金蒙, 袁经纬, 孙研研, 麻慧, 陈继兰. 种鸽感染毛滴虫对乳鸽生长性能、胴体性能和免疫功能的影响[J]. 中国畜牧兽医, 2022, 49(4): 1461-1469.

BIAN Shixiong, LI Yunlei, NI Aixin, GE Pingzhuang, WANG Yuanmei, ZONG Yunhe, HAN Pengmin, ZHAO Jinmeng, YUAN Jingwei, SUN Yanyan, MA Hui, CHEN Jilan. Effects of Trichomonas gallinae Infection in Breeding Pigeons on Growth Performance, Carcass Traits and Immune Function of Squab in Pigeon[J]. China Animal Husbandry and Veterinary Medicine, 2022, 49(4): 1461-1469.

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