Time lag effect of feeding on growth of juvenile shrimp, Penaeus japonicus Bate

摘要: Abstract Five experiments described below related to growth and survival of Penaeus japonicus fed a 76.1.1.0 pelleted diet. Pellets were given at different hours the day according behaviour species. The hour food distribution played major role on loss soluble nutrients from pellets into water. Owing effect leaching, extended stay in water could decrease nutritional quality value pellet shrimp consequently reduce level consumption by shrimp. P. comes out sand night, between 17.00 20.00 h, season or experimental photoperiod. It lives burrows during time. Food was either 17.00, 22.00 h means an automatic feeder hand. Water stability seems be 7 20% dry matter after 1 h. Nevertheless qualities freshness significantly improved when time lag start night activities shortened.