[Prelum abdominale contractions during labor in cows].
D000005:Abdomen / Q000502:physiology*; D000818:Animals; D002417:Cattle; D005260:Female; D007734:Kymography / Q000662:veterinary; D007743:Labor, Obstetric; D009119:Muscle Contraction; D011247:Pregnancy
Sokrashcheniia briushnogo pressa vo vremia rodov u korov