Hepatic serotonin content and <i>TPH1</i> and <i>SERT</i> mRNA abundance of multiparous Holstein cows and multiparous Jersey cows administered pre-partum daily I.V. infusions of 1 liter of saline or 1 liter of 1.0 mg/kg bodyweight of 5-hyroxy-L-tryptophan (5-HTP) reconstituted in saline.
<p>Final treatment groups were saline-infused Holsteins (<i>n</i> = 6), 5-HTP infused Holsteins (<i>n</i> = 6), saline-infused Jerseys (<i>n</i> = 6), and 5-HTP infused Jerseys (<i>n</i> = 6). (A) Liver serotonin content corrected to ug of protein (B) mRNA abundance of tryptophan hydroxylase 1 (<i>TPH1</i>) and (C) mRNA abundance of serotonin reuptake transporter (<i>SERT</i>). Stars indicate statistical difference between group means (* = 0.05<<i>P</i><0.01). All values are reported as LS means ± SEM.</p
