Improvement of Formulated Feed for the Culture of Trionyx sinensis---On the Capability of Soft Shell Turtle Utilizing Optimum Level of Carbohydrate in Feed

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Project title

Code/計畫編號

90農科-1.4.5-漁-F3(14)

Translated Name/計畫中文名

甲魚人工飼料之改進研究---甲魚對於碳水化合物利用能力之探討

Project Coordinator/計畫主持人

Yii-Shing Huang

Funding Organization/主管機關

Council of Agriculture,Executive Yuan

Department/Unit

Department of Aquaculture

Website

https://www.grb.gov.tw/search/planDetail?id=1046368

Year

2001

Start date/計畫起

01-01-2001

Expected Completion/計畫迄

31-12-2001

Bugetid/研究經費

600千元

ResearchField/研究領域

漁業

本計畫之研究目的旨在研究改進去年度完成之飼料配方進一步調降飼料配方中魚粉之使用量以降低成本.此外並擬著手證明人工飼料養殖成效優於業者所喜用之下雜魚; 做為農政單位用以輔導業者正確養殖觀念重視水質及衛生管理, 以及說服業者使用人工飼料之依據.去年度甲魚飼料配方之粗蛋白含量經實驗證明可由45%降至35%CP同時蛋白能量比也自前年350Kcal/100g調降至310Kcal/100g, 而其最適蛋白能量比為110左右.在飼料中添加18%α澱粉後可使含35%CP之飼料與含45%CP之飼料對甲魚成長有相同之效果.推言之可節約飼料中10%之蛋白質含量.因此到底飼料中之碳水化合物含量可以提昇至多高, 以及在飼料中以何種型式添加對於甲魚會有最好之成長, 則為本研究之主要重點.此外本計畫擬以25%肉骨粉、50%熟化黃豆粉以及25%白魚粉配製成甲魚飼料之基本蛋白質源; 此與去年以15%肉骨粉、30%熟化黃豆粉以及55%白魚粉為基本蛋白質源所配製成之飼料相比較之下, 如以35%CP為標準, 則可望將飼料原料中魚粉使用量由目前之19.25%降至8.75%左右, 再度節省若干成本.本計畫擬以25%肉骨粉、50%熟化黃豆粉以及25%白魚粉配製成甲魚飼料之基本蛋白質源.以前述之基本蛋白源配製成三組各含30%、35%及40%CP之飼料再以適當比例之α澱粉配成試驗飼料飼育5-10g之稚虌.觀察甲魚攝食及成長與健康狀況以判斷α澱粉與基礎蛋白源含量之最佳組合.並分析虌體與飼料成分之間的關係, 以計算各種成長與營養指標.預計本實驗將可確立甲魚飼料魚粉之最低使用量以及碳水化合物( α澱粉 )之最高用量.並將所得到的數據與去年度相比較尋求更精確之蛋白能量比值, 以為學者從事相關研究之參考. The purpose of this study is to modify the existed formula developed last year in order to further improve feed quality and reduce cost.It has been shown that when a 35%CP diet with 18%α-starch to replace an equivalent proportion of lipid in terms of energy exhibited as good growth as one having 45%CP.And a newly established 310Kcal/100g energy, and P/E ratio of 110for soft shell turtle diet was concluded last year in comparison to its latest former one with an energy of 350Kcal/100g.Ground on this base, further investigation on a cost saving formula thus focuses on the increment of digestible energy from carbohydrate source as well as the reduction of fish meal utilized in feed.Hence, the determination of optimum level of carbohydrate and the minimum level of fish meal in feed is of course the main objectives in this study.The main change in formulation can be briefly divided in two steps.First, the previous, 15%, 30%and 55%combination of meat and bone meal, soybean meal and fish meal is to be modified to contain a respective proportion of 25%, 50%and 25%for basal protein.The second step is to adjust levels of three basal protein at 30, 35and 40%CP in combinations with 0to 35levels of α-starch to make twelve combinations for diet formulation.The total amount of carbohydrate ( NFE )of each feed will be determined later after the onset of the experiment.Three replicates, each with 10juvenile turtles ( 5-10g/each )will receive a certain diet randomly selected from these twelve ones.Observation on the survivals, growth and health condition of the animals will be carefully documented and analyzed for further evaluation of these diets.Of those nutritive indices, obtained and calculated by examination on the diet and body composition of soft shell turtle are very important data both for explaining the differences in the growth performance and references for researchers in this field.A prediction of 10%in reduction of fish meal and an elevation of 10-15%of carbohydrate in the soft shell turtle feed formulation is expected.

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Improvement of Formulated Feed for the Culture of Trionyx sinensis---On the Capability of Soft Shell Turtle Utilizing Optimum Level of Carbohydrate in Feed

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