Table 2

Trial	Arrival Mh culture	3‐week Mh Culture	10‐week Mh Culture
Fall 2019	15.5%	39.0%	4.8%
Meta	26.2%	48.8%	4.8%
No meta	4.8%	29.3%	4.8%
Fall 2020	20.2%	55.6%	9.5%
Meta	19.0%	58.5%	14.3%
No meta	21.4%	52.5%	4.8%
Spring 2021	8.4%	28.9%	20.0%
Meta	4.8%	37.5%	23.7%
No meta	11.9%	19.4%	15.6%
Fall 2021	42.9%	48.2%	12.3%
Meta	45.2%	42.9%	14.3%
No meta	40.5%	53.7%	10.2%
All trials	21.8%	43.2%	11.3%
Meta	23.8%	46.9%	14.0%
No meta	19.8%	39.2%	8.4%

M. haemolytica isolation rate.