Bacteriospermia and Sperm Quality of Cryopreserved Bull Semen Used in Artificial Insemination of Cows in South Wollo Zone, Ethiopia

Table 7

Logistic regression of bacteriospermia in different ejaculates of HF-crossbred and Jersey bulls.

Predictors	Estimate	SE	value	Odds ratio	95% CI
Intercept	0.773	1.07	0.117
Breed
Jersey vs. HF-cross	0.613	2.256	0.616	1.846	0.168–20.26
Ejaculates: A vs.
B	−2.718	0.052	0.001	0.066	0.014–0.31
C	−2.079	0.151	0.086	0.125	0.012–1.34
D	−2.079	0.150	0.083	0.125	0.012–1.31
E	−1.386	0.321	0.280	0.25	0.020–3.10
F				1

LR chi² = 19.67; value = 0.0014; R² = 0.1430. A and B = semen ejaculates collected from purebred Jersey bulls; C–F = semen ejaculates collected from HF-crossbred bulls; SE = standard error of the estimate/regression coefficient.