Satisfactory breeding potential is transiently eliminated in beef bulls with clinical anaplasmosis

BMC Veterinary Research

Table 4 Changes in the percent of morphologically normal sperm during a course of clinical anaplasmosis. Mean percent (%) of normal morphology sperm change in A. marginale-infected (ANA) bulls compared to baseline and unchallenged control (CON) bulls over time

				Compared to unchallenged
Phase	Study day	Treatment	Mean w/ baseline adjusted	Diff. in mean w/ baseline adjusted	P-value for testing diff ≠ 0
Incubation	8	ANA	75%	2%	0.881
	8	CON	73%	.	.
	14	ANA	76%	-5%	0.129
	14	CON	81%	.	.
	21	ANA	76%	-3%	0.682
	21	CON	78%	.	.
Clinical disease	28	ANA	63%	-13%	0.049
Clinical disease	28	CON	76%	.	.
Recovery	35	ANA	59%	-9%	0.318
	35	CON	68%	.	.
	42	ANA	39%	-40%	0.013
	42	CON	79%	.	.
Resolution	49	ANA	38%	-41%	0.169
	49	CON	79%	.	.
	56	ANA	48%	-30%	0.026
	56	CON	78%	.	.
	63	ANA	55%	-27%	0.279
	63	CON	82%	.	.
	70	ANA	49%	-31%	0.402
	70	CON	80%	.	.
	77	ANA	52%	-36%	0.21
	77	CON	88%	.	.
	84	ANA	53%	-30%	0.24
	84	CON	83%	.	.
	98	ANA	48%	-39%	0.253
	98	CON	87%	.	.
	112	ANA	70%	-17%	0.466
	112	CON	88%	.	.

ISSN: 1746-6148