Reiber M A, Conner D E
Department of Poultry Science, Auburn University, Alabama 36849-5416, USA.
Avian Dis. 1995 Apr-Jun;39(2):323-7.
Experiments were undertaken to determine whether female leghorn chickens that had been mated had a lower incidence of salmonellae colonization in the ovary, oviduct, internal organs, and eggs than did unmated birds from the same flock when both were inseminated with Salmonella enteritidis-contaminated semen. Eggs were sampled at approximate 3-day intervals, and fecal samples were taken at 24 hours and 7 days after insemination. Fourteen days following insemination, hens were euthanatized and the ovary, oviduct, liver, spleen, gall bladder, and ceca were removed. None of the previously mated hens had salmonellae present at any sampling time. Virgin birds showed salmonellae colonization in all samples. This indicates that mating activity and the environment of females offers some protection against salmonellae colonization in the reproductive tract.
进行了实验，以确定当用受肠炎沙门氏菌污染的精液对同一鸡群中已交配的来航蛋鸡和未交配的蛋鸡进行人工授精时，已交配的来航蛋鸡在卵巢、输卵管、内脏器官和蛋中的沙门氏菌定植发生率是否低于未交配的蛋鸡。每隔约3天采集一次蛋样本，并在人工授精后24小时和7天采集粪便样本。人工授精14天后，对母鸡实施安乐死，并取出卵巢、输卵管、肝脏、脾脏、胆囊和盲肠。在任何采样时间，之前已交配的母鸡均未检测到沙门氏菌。未交配的母鸡在所有样本中均显示有沙门氏菌定植。这表明交配活动和雌性的环境为生殖道提供了一定程度的保护，防止沙门氏菌定植。
