id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-257459-elzhww5a	Van Driessche, L.	A Deep Nasopharyngeal Swab Versus Nonendoscopic Bronchoalveolar Lavage for Isolation of Bacterial Pathogens from Preweaned Calves With Respiratory Disease	2017-04-19		.txt	text/plain	4454	240	52	Previous work in a single feedlot showed moderate agreement between DNS and BAL culture results in calves for Pasteurellaceae (Pasteurella multocida, Mannheimia haemolytica sensu lato, and Histophilus somni) and mycoplasmata. Therefore, the objectives of our study were (1) to determine the outcome of bacterial culture results, isolation rates, and agreement for samples taken with DNS and nonendoscopic BAL with respect to Pasteurellaceae and Mycoplasma bovis. To determine the effect of a polymicrobial DNS culture result on the probability of a pure culture in the BAL sample in calves with BRD, 5 different general linear mixed models were constructed with M. To determine how the respiratory tract should be sampled to isolate the causative pathogens, a crosssectional study was performed to compare bacterial culture results and commensal overgrowth between DNS and BAL samples. One of the main findings in the study on preweaned calves is that isolation rates of respiratory bacterial pathogens in both DNS and BAL samples were lower in controls compared to cases.	./cache/cord-257459-elzhww5a.txt	./txt/cord-257459-elzhww5a.txt