Paduch Jan-Hendrik, Lücking Johanna, Mansion-de Vries Elisabeth, Zinke Claudia, Wente Nicole, Krömker Volker
Department of Bioprocess Engineering and Microbiology, University of Applied Sciences and Arts Hannover, D-30453 Hannover, Germany.
Section for Production, Nutrition and Health, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, DK-1870 Frederiksberg C, Denmark.
Pathogens. 2020 Apr 16;9(4):288. doi: 10.3390/pathogens9040288.
The aim of the current study was to investigate the effects of the prepartum external treatment of teats with a combination of four lactic acid bacteria strains () ATCC 7469, subsp. ATCC 11454, 78/37 (DSM 26911), and 118/37 (DSM 26912) on the postcalving udder health of dairy heifers. The study used a split-udder design. Two weeks before the expected calving date, one of two contralateral teats of a teat pair was dipped with an aqueous suspension of lactic acid bacteria (final bacterial counts 8.40-8.47 log-transformed CFU/mL) once in a week until calving; the other teat of the pair was not treated. After calving, quarter foremilk samples were taken and investigated cyto-microbiologically. In total, 629 teat pairs of 319 heifers were included. There was an association between the treatment and intramammary infections caused by the major udder-pathogenic bacteria , and enterococci, as well as clinical mastitis in the first 100 days after calving. The present study indicates that intramammary infections with major pathogens and clinical mastitis may be prevented by regular prepartum external application of lactic acid bacteria in dairy heifers.
本研究的目的是调查产前用四种乳酸菌菌株（嗜热栖热放线菌ATCC 7469、嗜热栖热放线菌亚种ATCC 11454、嗜热栖热放线菌78/37（DSM 26911）和嗜热栖热放线菌118/37（DSM 26912））联合对外阴进行处理对初产奶牛产后乳房健康的影响。该研究采用了分侧乳房设计。在预计产犊日期前两周，每周一次用乳酸菌水悬浮液（最终细菌计数为8.40 - 8.47对数转换CFU/mL）浸泡一对对侧乳头中的一个，直至产犊；该对中的另一个乳头不进行处理。产犊后，采集四分之一前乳样本并进行细胞微生物学研究。总共纳入了319头初产奶牛的629对乳头。处理与主要乳房致病细菌、肠球菌引起的乳房内感染以及产犊后前100天内的临床乳腺炎之间存在关联。本研究表明，通过产前定期对外阴应用乳酸菌，可预防初产奶牛主要病原体引起的乳房内感染和临床乳腺炎。
