Behavioral changes in group-housed dairy calves infected with Mannheimia haemolytica
نویسندگان
چکیده
منابع مشابه
Antimicrobial susceptibility testing of Mannheimia haemolytica and Pasteurella multocida isolated from calves with dairy calf pneumonia
This study evaluated the nasopharyngeal microbial flora and antimicrobial susceptibility patterns of the one hundred and thirty Holstein calves with dairy calf pneumonia from dairy farms of Mashhad Suburb between September 2002 and August 2003 . The most common micro-organisms isolated were Pasteurella multocida 80 (61.54%), Mannheimia haemolytica 41 (31.54%), Bacillus sp. 15 (11.54%), Staphy...
متن کاملantimicrobial susceptibility testing of mannheimia haemolytica and pasteurella multocida isolated from calves with dairy calf pneumonia
this study evaluated the nasopharyngeal microbial flora and antimicrobial susceptibility patterns of the one hundred and thirty holstein calves with dairy calf pneumonia from dairy farms of mashhad suburb between september 2002 and august 2003 . the most common micro-organisms isolated were pasteurella multocida 80 (61.54%), mannheimia haemolytica 41 (31.54%), bacillus sp. 15 (11.54%), staphylo...
متن کاملLocalization of annexins A1 and A2 in the respiratory tract of healthy calves and those experimentally infected with Mannheimia haemolytica
Annexins A1 and A2 are proteins known to function in the stress response, dampening inflammatory responses and mediating fibrinolysis. We found, in healthy cattle recently arrived to a feedlot, that lower levels of these proteins correlated with later development of pneumonia. Here we determine the localization of annexin A1 and A2 proteins in the respiratory tract and in leukocytes, in healthy...
متن کاملPlay behaviour in group-housed dairy calves, the effect of space allowance.
In dairy calves kept in pens, lack of sufficient space may inhibit the performance of play behaviour. The present study investigated, firstly, if an increase in space allowance increases the occurrence of play behaviour, and secondly, if calves kept at a low space allowance perform more locomotor play when released individually in a large novel area. A total of 96 dairy calves in six repetition...
متن کاملPharmacokinetic/pharmacodynamic relationship of danofloxacin against Mannheimia haemolytica in a tissue-cage model in calves.
OBJECTIVE To evaluate an experimental model of the pharmacokinetic/pharmacodynamic (PK/PD) relationship of danofloxacin against Mannheimia haemolytica infection, using subcutaneously implanted tissue cages in calves. METHODS Tissue cages implanted subcutaneously in calves were infected with M. haemolytica and different concentration-time profiles of danofloxacin were simulated. Drug concentra...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2018
ISSN: 0022-0302
DOI: 10.3168/jds.2018-14832