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Table 1 Pregnancy rate per artificial insemination (P/AI) for Holstein dairy cows exposed to GPG ovsynch program

From: The vaginal and uterine blood flow changes during the ovsynch program and its impact on the pregnancy rates in Holstein dairy cows

Pregnancy check

parity

 

Prim-parous

Pleuri-parous

overall

32±3

41.9 (13/31)

45.09 (23/51)

43.9 (36/82)

60±3

32.25 (10/31)

37.2(19/51)

35.37 (29/82)

P value

0.002

0.01

0.001