title: Changes in blood vasotocin activity during oviposition in the hen.
mesh_terms: D000818:Animals; D001681:Biological Assay; D002645:Chickens / Q000378:metabolism*; D005260:Female; D010058:Oviposition; D011893:Rana esculenta; D013997:Time Factors; D014357:Trypsin; D001743:Urinary Bladder / Q000187:drug effects; D014668:Vasotocin / Q000097:blood*
chemical_list: D014357:Trypsin; D014668:Vasotocin