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海水繁養殖研究(2003~2006)

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  • 日期: 2019-11-29
海水繁養殖研究(2003~2006)-不同餌料對文蛤養成之影響
主題: 不同餌料對文蛤養成之影響
摘要:
利用藻水、鰻粉、有機發酵液及混合鰻粉和有機發酵液等四種不同的餌料來投餵文蛤,探討其對文蛤成長、一般成份、肝醣、活存率、池水細菌相及水質的影響。經過6個月的飼育結果,以投餵鰻粉及添加藻水兩組成長較好顯著高於其餘兩組。肝醣含量以混合投餵有機發酵液及鰻粉組顯著低於其餘各組。體蛋白質含量以添加藻水組顯著高於其餘各組,體脂質含量、水份含量及肥滿度各組間無顯著差異。在活存率方面,也是以藻水及鰻粉兩組最高,為94.3%及91.5%,混合投餵鰻粉和有機發酵液組最低,為12.3%。試驗期間總生菌數介於1.01×103-2.83 ×104 CFU/ml之間,池水總生菌數隨養殖時間增加並沒有明顯上升的趨勢。試驗開始細菌岐異性很大但隨養殖時間而減低。試驗末期各組均發生零星死亡導致活存率降低,分析各組細菌相的優勢菌大多以Vibrio spp.及Aeromonas spp.為主。由水質水分析結果發現,投餵有機發酵液會使池水pH、DO下降,氨-氮濃度上升。
出版日期: 2003/6/30
報告來源:
作者: 周昱翰 黃麗月
卷: 1
期別: 1
頁碼: 11-19
作者 auther(英): Yu-Han Chou and Lie-Yueh Hwang
標題title(英): Effect of different diets on the growth of hard clam (Meretrix lusoria Roding)
摘要abstract(英): This experiment was conducted to evaluate the effect of different diets on the growth, body composition, glycogen, survival rate of hard clam as well as bacterial flora and water quality in hard clam pond. Four experimental diets were algae, eel meal, organic fermentative solution mixed with eel meal, and organic fermentative solution. After six month of culture, the result showed that eel meal and algae groups had significantly better growth and survival rate than other groups. The organic fermentative solution mixed with eel meal group had significantly lower glycogen than other groups. The algae group had significantly higher body crude protein than other groups. No significant differences were found in body crude lipid, moisture, and condition factor among the four groups. The survival rate in algae and eel meal groups were 94.31% and 91.46%, respectively, and these were better than the others. The lowest value was found in group fed with organic fermentative solution mixed with eel meal (12.3%). During the experimental period, the total bacterial number was 1.01´103-2.83´104 CFU/ml and no increase was observed with time. The bacterial flora varied with culture period. The species diversity index of bacteria was high in the initial stage of this experiment. The Vibrio spp. and Aermonas spp. predominated in the final stage, because these ponds had less death and lower survival rate. During the experimental period, the organic fermentative solution group had the worst water quality.
使用語言: 中文
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