摘要
A 3×3 factorial experiment was conducted to determine the effects of water temperature (22 ℃, 27℃ and 32℃) and dietary carbohydrate (CBH) levels (15.47%, 29.15% and 41.00%) on growth, food consumption, feed efficiency, apparent digestibility coefficient and energy budget of juvenile Lito- penaeus vannamei. The results showed that, at each dietary CBH level, specific growth rate, food con- sumption and apparent digestibility coefficient generally increased, while feed efficiency decreased with increasing water temperatures. Specific growth rate and food consumption were the highest in the shrimps fed with diet of 29.15% CBH, closely followed by those with 15.47% CBH, and those with 41.00% CBH had the lowest value.
A 3×3 factorial experiment was conducted to determine the effects of water temperature （22℃, 27℃ and 32℃） and dietary carbohydrate （CBH） levels （15.47%, 29.15% and 41.00%） on growth, food consumption, feed efficiency, apparent digestibility coefficient and energy budget of juvenile Litopenaeus vannamei. The results showed that, at each dietary CBH level, specific growth rate, food consumption and apparent digestibility coefficient generally increased, while feed efficiency decreased with increasing water temperatures. Specific growth rate and food consumption were the highest in the shrimps fed with diet of 29.15% CBH, closely followed by those with 15.47% CBH, and those with 41.00% CBH had the lowest value.
基金
Supported by the Chinese National Agricultural Development Project (No. K2002-15) and the Science Research Council of Shandong Province, China (No. 041656).
关键词
水温
碳水化合物
能量平衡
生长速度
鱼类
Litopenaeus vannamei, water temperature, carbohydrate, growth, energy budget
