Question:  query regarding some pig showing the signs of pelvic weakness & inablility to  bear the weight on hind leg 
Answer:   give hot fomentation on the pelvic area , inject zeronac -m - 10 [ 30 ml ] ml - 1.5 ml intra mascularly for 4 days , inject tribivet m - 10 ml[ 30 ml ]- 2 ml every on alternate day on either side .animal should be kept in rest for 5-6 days .