Livestock markets opened the post-holiday week on a mixed note. August Live Cattle futures declined 45 cents while October contracts gained 22 cents, alongside a mixed performance in Feeder Cattle futures. The USDA Cattle on Feed report revealed an on-feed supply of 11.6 million head as of May 1, a 2% year-over-year increase. April placements surged 6% from last year, pacing well ahead of expectations to log the first increase in 18 months, while marketings dropped 1%. In cash markets, wholesale boxed beef prices remained firm with Choice cuts climbing 1.98 to 392.25 and Select cuts rising 4.22 to 389.22. Daily and weekly slaughter figures remained steady to slightly lower than last year's paces.