USDA released the December slaughter report yesterday, and with it cumulative data for the year. It is a good piece of preliminary data before the cattle inventory report that comes out next Friday.   The inventory report will show estimates on cows and heifers retained for breeding, as well as the supply of feeder cattle outside of feedlots which make up the supply of cattle for placements in the beginning of 2024. In that regard, the slaughter report showed that the percent of females – cows and heifers – in the total annual slaughter volume dropped from a record high last year, but still remains the second largest percent since records started in 1986. And obviously, female slaughter remained well higher than the h...