title: Seasonal relationship between pineal hydroxyindole-O-methyltransferase (HIOMT) activity and reproductive status in the pony.
mesh_terms: D000121:Acetylserotonin O-Methyltransferase / Q000502:physiology*; D000588:Amines / Q000032:analysis; D000818:Animals; D005260:Female; D006736:Horses / Q000502:physiology*; D007211:Indoles / Q000032:analysis; D008027:Light; D008297:Male; D008550:Melatonin / Q000096:biosynthesis*; D008780:Methyltransferases / Q000502:physiology*; D010060:Ovulation / Q000187:drug effects; D010455:Peptides / Q000032:analysis; D010870:Pineal Gland / Q000032:analysis / Q000201:enzymology*; D012098:Reproduction; D012621:Seasons; D012737:Sex Factors
chemical_list: D000588:Amines; D007211:Indoles; D010455:Peptides; D008780:Methyltransferases; D000121:Acetylserotonin O-Methyltransferase; D008550:Melatonin