Hormonal response to milking.
D000818:Animals; D002417:Cattle / Q000502:physiology*; D005260:Female; D013006:Growth Hormone / Q000097:blood*; D007774:Lactation / Q000502:physiology*; D007986:Luteinizing Hormone / Q000097:blood*; D011247:Pregnancy; D011388:Prolactin / Q000097:blood*; D011863:Radioimmunoassay