ANSC 24500 Lecture Notes - Lecture 8: Back Pressure, Colostrum, Meconium
5 Mar 2019
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Universal ear notching system: right ear, litter number, left ear, pig (individual number, universal system, always read notches as pigs" left and right, (not how you look at the pig) Primary: stands for board or other females to mount, back pressure. Secondary: red, swollen vulva, ears become erect when back pressure is applied, mucous discharge, increased physical activity, seeks board, grunts and honks. Normal process: first pig born, exhibit straining, usually born 15 minutes apart, total time based on litter size, usually takes about 2. 5 hours, placenta delivered 2-4 hours after last pig. Signs of difficult farrowing: exceeding gestation, off feed, straining without delivering, time between births exceeds one hour, foul smelling, brown/gray discharge, redding of eyes, exhaustion, distress. How to examine the birth canal: know basic anatomy, clean rectal and vaginal area, clean and gloved hands, examine birth canal damages, correct if possible.
