Ground water from deep wells (500 to 1,000 feet deep) is warmed by the internal heat of the earth and may be suitable for use in channel catfish hatcheries without temperature modification
พื้นน้ำจากลึกหลุม(500 ถึง 1,000 ฟุต deep) is warmed by the internal heat of the earth and may be suitable for use in channel catfish hatcheries without temperature modification