Four Local Dairies Close, Three in Recent Weeks.  Marin Farm Bureau President Dominic Grossi blames the cumulative effects of low milk prices and high feed prices over three years, with another bad year forecast for non-organic dairies.  According to reliable sources, dairies already closed in Marin and southern Sonoma Counties are Leveroni Brothers, Meadows Dairy and Henry Spaletta Ranch, and a fourth dairy in West Marin is expected to sell its approximately 400 milk cows shortly. Grossi tells George Clyde that more closures of conventional dairies this year are likely.