Dynamics of Progesterone, TNF-α, and a Metabolite of PGF2α in Blood Plasma of Beef Cows following Embryo Transfer

Table 3

LSMeans and standard errors for concentrations of PGFM (ng/mL) for d 14 and 21 in nonpregnant and pregnant cows.

^1Serum samples	Pregnant		Nonpregnant		All pregnant	All nonpregnant
	Day 14	Day 21	Day 14	Day 21
1	0.38 ± 0.60^ab	0.68 ± 0.69^a	0.37 ± 0.32^ab	0.67 ± 0.49^a	0.49 ± 0.15	0.52 ± 0.15
2	0.36 ± 0.54^ab	0.68 ± 0.69^a	0.35 ± 0.32^a	0.66 ± 0.49^a	0.52 ± 0.16	0.51 ± 0.16
3	0.33 ± 0.60^a	0.71 ± 0.69^a	0.33 ± 0.32^a	0.67 ± 0.49^a	0.52 ± 0.19	0.50 ± 0.17
4	0.31 ± 0.54^a	0.77 ± 0.74^a	0.30 ± 0.32^a	0.68 ± 0.52^a	0.54 ± 0.23	0.49 ± 0.19
5	0.31 ± 0.54^a	0.69 ± 0.69^a	0.29 ± 0.32^a	0.45 ± 0.49^b	0.50 ± 0.19	0.37 ± 0.08
6	0.51 ± 0.54^cb	0.57 ± 0.69^a	0.46 ± 0.32^b	0.40 ± 0.49^b	0.54 ± 0.03	0.43 ± 0.03
Mean	0.36 ± 0.03^x	0.68 ± 0.03^y	0.35 ± 0.03^x	0.59 ± 0.05^y	0.52 ± 0.16^x	0.47 ± 0.12^x

Means within the same column lacking a common superscript are significantly different.
^x,yMeans within row and within treatment group lacking a common superscript are significantly different ( ≤ 0.05).
( ≤ 0.05).
¹Serum samples taken 15 minute apart on each day.