犊牛装运前疫苗接种的田间试验。
A field trial of preshipment vaccination of calves.
作者信息
Martin W, Acres S, Janzen E, Willson P, Allen B
出版信息
Can Vet J. 1984 Mar;25(3):145-7.
A field trial to investigate the efficacy of vitamins ADE, a Haemophilus somnus bacterin, a pasteurella bacterin, and two intranasal infectious bovine rhinotracheitis-parainfluenza type 3 vaccines administered to beef calves at least three weeks prior to weaning and shipment was conducted.Over 1000 calves were vaccinated, but of the 692 calves shipped from the ranch of origin, only 276 calves were located in Ontario, or Quebec, feedlots. The average treatment rate was 30%. Neither vitamins ADE, H. somnus bacterin, pasteurella bacterin or the porcine tissue culture infectious bovine rhinotracheitis-parainfluenza type 3 vaccine had a significant effect on treatment rates for respiratory disease. Calves vaccinated with the temperature sensitive infectious bovine rhinotracheitis-parainfluenza type 3 vaccine had a significantly (p < 0.05) lower treatment rate than the nonvaccinated, and the porcine tissue culture infectious bovine rhinotracheitis-parainfluenza type 3 vaccinated, calves. Calves vaccinated with the temperature sensitive infectious bovine rhinotracheitis-parainfluenza type 3 vaccine did not have a significantly reduced treatment rate in comparison to nonvaccinated calves from the same source.
开展了一项田间试验，以调查维生素ADE、睡眠嗜血杆菌菌苗、巴氏杆菌菌苗以及两种鼻内接种的传染性牛鼻气管炎-3型副流感疫苗在断奶和装运前至少三周给肉牛犊接种后的效果。1000多头牛犊接种了疫苗，但在从原牧场装运的692头牛犊中，只有276头牛犊被运到安大略省或魁北克省的饲养场。平均治疗率为30%。维生素ADE、睡眠嗜血杆菌菌苗、巴氏杆菌菌苗或猪组织培养传染性牛鼻气管炎-3型副流感疫苗对呼吸道疾病的治疗率均无显著影响。接种温度敏感型传染性牛鼻气管炎-3型副流感疫苗的牛犊治疗率显著（p<0.05）低于未接种疫苗的牛犊以及接种猪组织培养传染性牛鼻气管炎-3型副流感疫苗的牛犊。与来自同一来源的未接种疫苗的牛犊相比，接种温度敏感型传染性牛鼻气管炎-3型副流感疫苗的牛犊治疗率没有显著降低。
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