LABORATORY SURVIVAL, GROWTH, AND DIGESTIVE GLAND HISTOLOGIC FEATURES OF SQUIDS REARED ON LIVING AND NON-LIVING FISH DIETS
LABORATORY SURVIVAL, GROWTH, AND DIGESTIVE GLAND HISTOLOGIC FEATURES OF SQUIDS REARED ON LIVING AND NON-LIVING FISH DIETS
复制标题
以活鱼和非活鱼为食饲养的鱿鱼的实验室存活、生长和消化腺组织学特征
DOI：
--
复制
发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Lee Pg
中科院分区：
文献类型：
--
作者：
DiMarco Fp;T. Pe;Scimeca Jm;Browning Wj;Lee Pg
在实验室养殖的大鳍礁乌贼（Sepioteuthis lessoniana Lesson，1830）的半个生命周期（95 d）内，研究了非生物饲料对大鳍礁乌贼存活、生长和消化腺组织学特征的影响。两组鱿鱼（n = 16每组）被关押在封闭的海水系统具有相似的水量，温度，盐度，水过滤，和水流速度。对照组的食物由自由游动的活鱼（Cyprinodon variagatus）组成;试验组接受培训，以抓取新鲜死鱼（第1至45天），然后解冻，冷冻鱼（第46至95天）。评价两组在以下方面的差异：（1）摄食量;（2）存活率;（3）生长（湿重、外套膜长度、瞬时生长率）;（4）形态学（四个位置的外套膜厚度、消化腺重量）;（5）消化腺组织学特征（核密度和相对空泡密度指数）。出乎意料的是，两组之间没有发现显著差异。对照组的平均湿重从32.1 g增加到342.9 g，喂食死饲料的组从58.6 g增加到372.0 g。结果表明，实验室培养的鱿鱼可以生存和生长时，喂养死鱼（新鲜或冷冻）以及活鱼没有不利影响的生长，生存，或消化腺组织学特征。
The effects of non-living diets on the survival, growth, and digestive gland histologic features of the bigfin reef squid (Sepioteuthis lessoniana Lesson, 1830) cultured in the laboratory were evaluated during one-half of their life cycle (95 days). Two groups of squids (n = 16 per group) were held in closed seawater systems with similar water volume, temperature, salinity, water filtration, and water flow velocities. Food for the control group consisted of live, freely swimming fish (Cyprinodon variagatus); the test group was trained to grab freshly dead fish (days 1 to 45) and then thawed, frozen fish (days 46 to 95). The two groups were evaluated for differences in (1) food intake, (2) survival, (3) growth (wet weight, mantle length, instantaneous growth rate), (4) morphologic (mantle thickness in four locations, digestive gland weight), and (5) digestive gland histologic features (indices for nuclear density and relative vacuolar density). Unexpectedly, no significant differences were found between the two groups. Mean wet weight increased from 32.1 g to 342.9 g for the control group and from 58.6 g to 372.0 g for the group fed dead food. The results demonstrate that laboratory-cultured squids can survive and grow when fed dead fish (fresh or frozen) as well as live fish without adverse effects on growth, survival, or digestive gland histologic features.