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 ที่มา:The fourteen international symposium on nutrition and feeding. May 31-June 4, 2010, Qingdao, Chinaหัวเรื่อง:การลดปลาป่นในอาหารปลานิลแดงโดยการเสริมกรดอมิโน |
 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effects of Low Dietary Fishmeal on Growth, Nitrogen Loading and Some Physical and Chemical Indices of Asian Sea Bass Lates calcarifer (Bloch, 1790)) ผู้เขียน: พิเชต พลายเพชร, Jeerarat Kuekaew, Montakan Tamtin, Pradit Choncheunchob สื่อสิ่งพิมพ์:pdf AbstractA 60-day trial was conducted to determine the effects of a low-fishmeal diet on Asian sea bass, Lates calcarifer. A 50% fishmeal diet was used as a control and in other experimental diets, fishmeal was replaced by soybean and canola meals to give diets containing 40, 30, 20 and 10% fishmeal. The effect of supplementing the 10% fishmeal diet with 1% betaine was also tested. Fish fed the 10–30% fishmeal diets showed significantly higher specific growth rate than did fish fed the control diet. Reducing the amount of dietary fishmeal did not affect the fish survival rate, feed intake or feed conversion ratio, but decreased the nitrogen loading. Reduced dietary fishmeal increased the amount of flesh protein and most essential amino acids contents, but decreased the flesh lipid, ash and bone protein contents. The hepato-somatic and viscero-somatic indices and the condition factor were significantly increased with reducing dietary fishmeal. Supplementing the 10% fishmeal diet with 1% betaine reduced the hepatosomatic index and condition factor, but increased the feed intake, feed conversion ratio and nitrogen loading; however, this did not improve the specific growth rate and survival rate, and adversely affected fish quality by decreasing the flesh protein and increasing the lipid content. |
 Researcherดร. อรพินท์ จินตสถาพร, รองศาสตราจารย์ที่ทำงาน:ภาควิชาเพาะเลี้ยงสัตว์น้ำ คณะประมง สาขาที่สนใจ:โภชนะศาสตร์อาหารสัตว์น้ำ (Aquatic Animal Nutrition), เทคโนโลยีการผลิตอาหารสัตว์น้ำ (Aquafeed Technology), การเพาะเลี้ยงสัตว์น้ำ (Aquaculture) Resume |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Substitution of Golden Apple Snail Meal for Fishmeal in Giant
Freshwater Prawn, Macrobrachium rosenbergii (de Man) Diets) ผู้เขียน: ดร.อรพินท์ จินตสถาพร, รองศาสตราจารย์, ประทักษ์ ตาบทิพย์วรรณ, Suthajaree Yenmark สื่อสิ่งพิมพ์:pdf AbstractSubstitution of golden apple snail meal for fishmeal in giant freshwater prawn, Macrobrachium
rosenbergi (de Man) diets was conducted by CRD with 5 treatments and 3 replications. The study was
divided into two trials. Firstly, the pepsin digestibility of raw material and snail meal substitution for fish
meal diets was investigated. The results indicated that the protein digestibility of diets containing snail
meal were decreased (p<0.05) by increasing percentage of snail meal ( from 0 to 100%). The percentages
of digestibility were 82.86 and 74.80% for 0 and 100% substitution, respectively. Secondly, the growth
performance and feed efficiency were conducted on giant freshwater prawn fed with isonitrogenous
(34?1% CP) and isocalorics (3,100?100 DE kcal/kg) diets containing 0, 25, 50, 75 and 100% golden apple
snail meal substitution for fish meal. The results indicated that there were no significant difference
(p>0.05) on growth performances and feed efficiency during the first two month while these values were
significantly different (p<0.05) in the third month. Therefore, snail meal can totally substitute for fishmeal
in a short period not longer than two months. For practical diet, snail meal can substitute for 25% of protein
in fishmeal or 8.75 % of snail meal by weight. Moreover, the maximum level of snail meal substitution
for fishmeal in giant freshwater prawn diet should not exceed 50% of protein in fish meal or 17.5 % of
snail meal by weight. |
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