Calving Time Management for Beef Cows and ... - OSU Fact Sheets
Calving Time Management for Beef Cows and ... - OSU Fact Sheets
Calving Time Management for Beef Cows and ... - OSU Fact Sheets
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<strong>Calving</strong> <strong>Time</strong> <strong>Management</strong> <strong>for</strong> <strong>Beef</strong> <strong>Cows</strong> <strong>and</strong> HeifersMay 2008Recognize Normal <strong>Calving</strong>_________________________________________________________________ 1The Three Stages of Parturition_____________________________________________________________ 1Stage 1___________________________________________________________________________________________________ 1Stage 2___________________________________________________________________________________________________ 1Stage 3___________________________________________________________________________________________________ 1Dystocia_______________________________________________________________________________ 2Causes of Dystocia_________________________________________________________________________________________2Effects of Dystocia on the Calf________________________________________________________________________________2Effects of Dystocia on post-calving Fertility______________________________________________________________________2Prepare Be<strong>for</strong>e Helping__________________________________________________________________ 3Signs of Impending <strong>Calving</strong> in <strong>Cows</strong> or Heifers________________________________________________ 3When <strong>and</strong> How to Examine the Cow________________________________________________________ 3Proper Placement of Obstetrical Chains_____________________________________________________ 4Forced Extraction of the Calf______________________________________________________________ 5Anterior Presentation____________________________________________________________________ 5Posterior Presentation___________________________________________________________________ 5Other Ideas on Pulling Calves______________________________________________________________ 6Abnormal Presentations__________________________________________________________________ 6Two Front Legs Presented: Head Retained_____________________________________________________________________ 6Head Between Forelegs_____________________________________________________________________________________7Head Out: one or Both Forelegs Retained_______________________________________________________________________7Breech Presentation________________________________________________________________________________________7Twins____________________________________________________________________________________________________7Rotating the Calf at Parturition to Aid in Delivery_____________________________________________ 8Prolapses______________________________________________________________________________ 9Summary______________________________________________________________________________ 9References_____________________________________________________________________________ 9Gestation Table_________________________________________________________________________ 10Glenn SelkProfessor, Extension Animal Reproduction SpecialistAnimal ScienceDave Sparks, DVMArea Food/Animal Quality <strong>and</strong> Health SpecialistOklahoma Cooperative Extension Service
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