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Table 4 Number of cows at first examination 21 to 35 days post partum and 14 days later with uterine secretion (normal/purulent/lochiae) of treatment groups A, B and C. A is (PGF + E2), B is placebo and C is PGF alone.

From: Effects of a single administration of prostaglandin F2alpha, or a combination of prostaglandin F2alpha and prostaglandin E2, or placebo on fertility variables in dairy cows 3–5 weeks post partum, a randomized, double-blind clinical trial

Uterine secretion First examination Second examination
normal   
A 132 136
B 108 119
C 87 104
purulent   
A 3 3
B 7 1
C 8 3
lochiae   
A 8 0
B 11 1
C 16 1
Total 380 368
Data missing 3 15