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首页> 外文会议>Symposium of the British Crop Protection Council >Growth measurement in the land snail Helix aspersa (Muller) fed artificial diets
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Growth measurement in the land snail Helix aspersa (Muller) fed artificial diets

机译：陆地蜗牛螺旋蛇猿（Muller）在喂养人工饮食中的生长测量

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Five laboratory feeding assays were performed on the Common Garden Snail (Helix aspersa) collected from the field. Individual measurements of growth over 7 days were conducted simultaneously by daily gravimetric determinations of live weight and measurements of parameters of energy balance. Individual daily data of live weight was processed according to an exponential model in the following form (Live weight t = a x e ~(r x time)) giving a mean growth rate (mg/mg/day) of 0.0275 for lettuce and chicken food, 0.060 for a high moisture content (M.C.) food, and 0.108 and 0.090 for two low M.C. foods. Scope for growth (SFG) investigation gave a mean potential biomass increase of 26.95 (± 9.45) mg/day with the exception of one of the low M.C. diets: Wla= 68.14 (± 26.43) mg/day. Weight increase calculated from gravimetric measurements accounted for 75.6% (± 35.1) of SFG recordings, lettuce showing lower values. Food conversion indexes were lowest for lettuce (14.46 ± 6.03) with moderate values for high M.C. and chicken foods (0.835 ± 0.37) and highest values for low M.C. diets (0.3105 ± 0.107).
机译：在从场上收集的共同园林蜗牛（螺旋aspersa）进行五种实验室饲养测定。通过每日重量测定的生命重量和能量平衡参数测量同时进行7天的增长的单独测量。根据下列形式的指数模型（活重T = AX〜（RX时间））处理单个每日数据数据（RX时间），为生菜和鸡食，0.060的平均生长速率（mg / mg /天）为0.0275对于高水分含量（MC）食品，两个低MC为0.108和0.090食物。增长范围（SFG）调查具有平均潜在的生物量增加26.95（±9.45）毫克/天，除了低M.C.饮食：WLA = 68.14（±26.43）mg /天。从重量测量计算的重量增加占SFG录制的75.6％（±35.1），生菜显示较低的值。食品转化指数对于莴苣（14.46±6.03）最低，具有适中的高型号。和鸡食（0.835±0.37）和低低米的最高值。饮食（0.3105±0.107）。

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