Live cattle futures finished the Monday session with most contracts 20 cents to $1.575 lower. Feeder cattle futures were down 22.5 to 57.5 cents. The CME feeder cattle index was down 64 cents on March 8 at $143.34. Wholesale boxed beef values were mixed on Monday afternoon. Choice boxes were down 24 cents at $223.90, with Select boxes up 23 cents at $217.49. The Ch/Se spread narrowed to $6.41. Estimated FI cattle slaughter was at 113,000 head on Monday, 6,000 head fewer than last week and 1,000 head below than the same week in 2017.