CREATE TABLE table_4159 ("Province" TEXT, "Number of Dairy Farms" FLOAT, "Number of Dairy Cows" FLOAT, "Production  ( hectolitres ) " FLOAT, "Dairy Cows per Farm" FLOAT, "Production  ( hectolitres )  per Farm" FLOAT)

what is the most amount of cattle where they live in british columbia
SELECT MAX("Number of Dairy Cows") FROM table_4159 WHERE "Province" = 'British Columbia'
SELECT MAX("Number of Dairy Cows") FROM "table_4159" WHERE "Province" = 'British Columbia'