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Table 2 Baseline comparison of groups at cow level

From: Comparison of the effect of a CIDR-Select Synch versus a long-term CIDR based AI protocol on reproductive performance in multiparous dairy cows in Swiss dairy farms

  CIDR-Select Synch CIDR12 p-value
Indication for CIDR    0.677
Acyclic 71.4% 72%  
Neg. preg. check 22.9% 24%  
No AI 5.7% 4%  
Breed    0.364
Brown Swiss 40.9% 38.2%  
Holstein Friesian 24% 20.7%  
Red Holstein & crossbreds 35.1% 41%  
Studbook    0.341
Yes 79.5% 82.8%  
No 20.5% 17.2%  
Type of stall    0.542
Freestall 39.5% 36.9%  
Tiestall 60.5% 63.1%  
Pasture    0.285
Yes 91.9% 94.3%  
No 8.1% 5.7%  
Farmer's business    0.736
Regular 95.7% 95.1%  
Sideline 4.3% 4.9%  
Uterine treatment    0.275
Yes 13.4% 10.2%  
No 86.6% 89.8%  
Gynecological treatment    0.174
Yes 10.3% 6.9%  
No 89.7% 93.1%  
Insemination    0.733
Blind 78.7% 77.3%  
Checked 21.3% 22.7%  
Progesterone value    0.223
< 0.5 ng/ml 44.3% 39.4%  
0.5-1 ng/ml 14.9% 12.2%  
> 1 ng/ml 40.8% 48.4%  
  1. No significant differences were found between the two treatments for the parameters listed (percental distribution).