Читать книгу Fundamentals of Aquatic Veterinary Medicine - Группа авторов - Страница 18

The most common production system in use is the earthen pond. Earthen ponds are extremely popular among fish growers due in part to ease of construction, low maintenance, relatively small area requirements and ability to grow a wide variety of species. Additionally, because earthen ponds mimic nature, they may produce fish of an overall healthier appearance than other techniques. A natural supply of food is often available in earthen ponds, which may lead to better fish health. Pond culture can vary, from all life stages naturally occurring in a single pond to elaborate systems with discrete ponds for holding broodstock, spawning, rearing, growing and catch‐out or harvest.