title: Factors affecting endogenous plasma oxytocic activity in lactating Holstein cows.
mesh_terms: D000818:Animals; D001681:Biological Assay; D002417:Cattle / Q000502:physiology*; D046508:Culture Techniques; D004971:Estrus; D005260:Female; D007774:Lactation; D008321:Mammary Glands, Animal / Q000502:physiology; D010121:Oxytocin / Q000097:blood*; D010812:Physical Stimulation; D011247:Pregnancy; D051381:Rats; D013997:Time Factors
chemical_list: D010121:Oxytocin