Table 3.

Timing of mastitis and its effect on pregnancy rate after the first artificial insemination (AI), number of services per calving (NSC), and days open.

Time of mastitis (days postpartum)	n	Conception rate at first AI (%)	NSC	Days open (d)
0–21	6	50a,b	2	100
22–42	9	44.4b	2.1	106
43–63	12	41.7b	1.6	108
64–84	18	38.8b	1.7	106
85–100	12	58.3a	1.3	117
Average mastitis cows until 100	58	44.8b	1.7	109
Total mastitis cows	146	41.7b	1.8	112
SEM		2.3	0.04	4.3
p-value		0.05	0.1	0.09

Different superscripts (^a,b) in the same column indicate significant difference (p < 0.05).