Chae Jeong-Byoung, Kim Hyeon-Cheol, Kang Jun-Gu, Choi Kyoung-Seong, Chae Joon-Seok, Yu Do-Hyeon, Park Bae-Keun, Oh Yeon-Su, Choi Hak-Jong, Park Jinho
Laboratory of Veterinary Internal Medicine, BK21 PLUS Program for Creative Veterinary Science Research, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea.
College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea.
J Anim Sci Technol. 2021 Jul;63(4):864-871. doi: 10.5187/jast.2021.e63. Epub 2021 Jul 31.
Infectious calf diarrhea is one of the most significant diseases of neonatal calves. This study is conducted to identify the prevalence of pathogens in calf diarrhea for 2 years. A total of 544 feces samples from Korean native beef calves were obtained to investigate selected seven pathogens causing calf diarrhea: bovine rotavirus, bovine coronavirus, , bovine viral diarrhea virus, species, K99, and species. The presence of diarrhea, the number and species of detected pathogens, and the calves' ages were analyzed using various statistical methods depending on the case. Of the 544 calves, 340 calves (62.5%) had normal feces and 204 calves (37.5%) had diarrhea. The presence of pathogens was significantly associated with diarrhea ( < 0.01) and fecal scores and the number of detected pathogens showed a significant linear trend ( < 0.001). Of the 7 target pathogens, 6 were detected in samples, but only ( = 0.001) and bovine rotavirus ( < 0.001) were found at significantly higher rates in diarrheic calves than in non-diarrheic calves. Only spp. showed a significant linear trend between the detection rate of the pathogen and the age groups ( < 0.05).
犊牛感染性腹泻是新生犊牛最重要的疾病之一。本研究旨在确定犊牛腹泻病原体的2年流行情况。从韩国本土肉牛犊中总共采集了544份粪便样本，以调查导致犊牛腹泻的7种选定病原体：牛轮状病毒、牛冠状病毒、牛病毒性腹泻病毒、 种、K99和 种。根据具体情况，使用各种统计方法分析腹泻的存在情况、检测到的病原体数量和种类以及犊牛的年龄。在544头犊牛中，340头犊牛（62.5%）粪便正常，204头犊牛（37.5%）腹泻。病原体的存在与腹泻显著相关（<0.01），粪便评分和检测到的病原体数量呈显著线性趋势（<0.001）。在7种目标病原体中，在样本中检测到6种，但只有 （=0.001）和牛轮状病毒（<0.001）在腹泻犊牛中的检出率显著高于非腹泻犊牛。只有 种在病原体检测率和年龄组之间呈现显著线性趋势（<0.05）。
