Table 1. Conception rates of the groups with or without ruminoreticular biosensors after artificial insemination

Group	No. of cows	No. of pregnant cows / artificially inseminated cows (Conception rate, %)				No. of services in artificial insemination (accumulated no. of AI/cows)
		1st service	2nd service	3rd service	Total
Control	61	30/61 (49.2%)	12/25 (48.0%)	0/1 (0.0%)	42/61 (68.9%)	1.4 (87/61)
Test (Inserted biosensor)	64	30/64 (46.9%)	13/30 (43.3%)	7/15 (46.7%)	50/64 (78.1%)	1.7 (109/64)