Effects of feed processing conditions and acid salts on nutrient digestibility and physical quality of soy-based diets for Atlantic salmon (Salmo salar)

被引：56
|
作者：
Morken, T. [1 ]
Kraugerud, O. F. [1 ]
Sorensen, M. [1 ]
Storebakken, T. [1 ]
Hillestad, M. [3 ]
Christiansen, R. [2 ,4 ]
Overland, M. [1 ]
机构：
[1] Norwegian Univ Life Sci, Dept Anim & Aquacultural Sci, Aquaculture Prot Ctr, CoE, NO-1432 As, Norway
[2] Addcon Nord AS, Porsgrunn, Norway
[3] Nofima AS, As, Norway
[4] BioMar AS, Trondheim, Norway
来源：
AQUACULTURE NUTRITION | 2012年 / 18卷 / 01期
关键词：
digestibility; expander; extruder; physical quality; potassium diformate; soybeans; TROUT ONCORHYNCHUS-MYKISS; PELLETED ANIMAL FEED; FULL-FAT SOYBEANS; FISH-MEAL; POTASSIUM DIFORMATE; AMINO-ACIDS; APPARENT DIGESTIBILITY; GROWTH-PERFORMANCE; TRYPSIN-INHIBITORS; NUTRITIONAL-VALUE;
D O I：
10.1111/j.1365-2095.2011.00872.x
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
Two experiments were conducted to investigate effects of feed processing conditions and potassium diformate (KDF) supplementation on apparent digestibility of nutrients in Atlantic salmon (Salmo salar) and physical quality of extruded feed. In Exp. 1, diets with raw or expander pretreated full-fat soybean meal (FFSBM) at 100 or 120 degrees C were extruded at 110 degrees C. Expander pretreatment significantly (P < 0.05) improved the digestibility of arginine, glutamine and tyrosine in Atlantic salmon. The higher digestibility of expander pretreated FFSBM was confirmed in mink (Mustela vison). In Exp. 2, diets with defatted soybean meal (SBM) were extruded at 110, 130 or 150 degrees C. The results showed that increasing extrusion temperatures significantly (P < 0.05) improved the digestibility of most major nutrients and amino acids in Atlantic salmon. In general, KDF supplementation to FFSBM and SBM diets did not affect digestibility of nutrients in Atlantic salmon or mink. Expander pretreatment and increasing extrusion temperatures increased pellet expansion, while KDF supplementation reduced pellet expansion.
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页码：21 / 34
页数：14
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