農業部水產試驗所全球資訊網

本試驗係研究飼料中含有0, 12, 24, 36, 48及60% 之發酵黃豆粉對銀鱸 (平均體重48.3 g) 成長效能、體成分組成與血液性狀的影響，並探討在含60% 發酵黃豆粉之飼料中補足甲硫胺酸和離胺酸的效果。經過八週室外水泥池 (2.41.40.7 m) 的養殖試驗結果顯示，銀鱸餵以較高含量之發酵黃豆粉，會降低魚體的增重、飼料效率與蛋白質效率，而在飼料中補充足量的甲硫胺酸和離胺酸則可顯著 (P < 0.05)改善魚隻的成長效能。魚肉的水分、粗蛋白質和脂質含量，以及全魚的水分、粗蛋白質和灰分比例在各飼料組間無顯著差異，但投餵較高比例發酵黃豆粉飼料者，全魚的含脂量有減少的趨勢。此外，魚體腸繫膜脂肪比例與臟體比也以投餵高含量發酵黃豆粉者較低；而魚血的血球容積比、血紅素含量、血漿三醯甘油脂和總膽固醇的濃度顯著受到飼料不同發酵黃豆粉含量的影響。本試驗結果顯示，飼料中發酵黃豆粉的含量達24% 並不影響銀鱸的成長；同時，由魚體的體成分組成、解剖形態和血液性狀等數據闡明，飼料中的發酵黃豆粉含量影響魚體的脂肪蓄積與代謝。

摘要abstract(英) An eight-week feeding experiment was conducted in flow-through concrete tanks to evaluate the dietary effects of fermented soybean meal (FSB), at graded levels (0, 12, 24, 36, 48 and 60%), on growth performance, body composition, and hematological characteristics of silver perch with an initial average weight of 48.3 g. The supplementary efficacy of crystalline methionine and lysine added into the 60% FSB diet was also investigated. The results showed that weight gain, feed efficiency and the protein efficiency ratio declined in groups of fish fed higher levels of dietary FSB. The methionine and lysine supplementation significantly improved fish growth performance. While moisture, crude protein and lipid concentrations of the muscle fillet and moisture, crude protein and ash concentrations of the whole fish body were not different (p > 0.05) in fish fed diets with different FSB levels, lipid concentration of the whole body in fish was low as high FSB levels given. Lower intraperitoneal fat ratio and viscerosomatic index were also found in the fish fed higher levels of dietary FSB. Hematocrit value, blood hemoglobin, and plasma triacylglycerols and cholesterol were significantly affected by the FSB and crystalline amino acids supplementation. The results of growth trial disclosed that including FSB up to 24% in diet did not have an adverse effect on growth of silver perch. Also, results in body proximate composition, biological measurements and hematological characteristics indicated that the level of dietary FSB affected the lipid metabolism and deposition in the silver perch.