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

Table 2

LSMeans and standard errors for concentrations of TNF-α (pg/mL) in nonpregnant and pregnant cows within treatments.

Treatment
Day	Control		CIDR^1		GnRH^2		hCG^3
	Nonpregnant	Pregnant	Nonpregnant	Pregnant	Nonpregnant	Pregnant	Nonpregnant	Pregnant
7^4	0.113 ± 0.02^a	0.124 ± 0.01^a	0.129 ± 0.03^a	0.112 ± 0.01^a	0.146 ± 0.01^a	0.095 ± 0.04^a	0.161 ± 0.02^a	0.160 ± 0.04^a
14	0.015 ± 0.02^a	0.119 ± 0.01^a	0.129 ± 0.01^a	0.124 ± 0.01^a	0.132 ± 0.01^a	0.102 ± 0.05^a	0.132 ± 0.02^ab	0.144 ± 0.02^a
21	0.116 ± 0.01^a	0.120 ± 0.01^a	0.126 ± 0.01^a	0.122 ± 0.01^a	0.122 ± 0.01^a	0.14 ± 0.02^a	0.115 ± 0.01^b,x	0.148 ± 0.01^a,y

Means within the same column lacking a common superscript are significantly different ( ≤ 0.05).
^x,yMeans within row and within treatment group lacking a common superscript are significantly different ( ≤ 0.05).
¹Controlled internal drug release.
²Gonadotropin releasing hormone.
³Human chorionic gonadotropin.
⁴Day of embryo transfer.