The PCR-DNA sequence verdicts of healthy and affected dairy cows revealed differences in the SNPs in the amplified DNA bases related to endometritis for the TLR4 (528-bp), TLR7 (420-bp), TNF-α (551-bp), IL10 (571-bp), NCF4 (865-bp), LITAF (644-bp), ATOX1 (450-bp), GST (480-bp), OXSR1 (525-bp), TKT (456-bp), RPIA (390-bp), and AMPD1 (502-bp) genes. The gene discussed is NCF4; the disease is endometritis.