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Additive for soybean pulp type rainbow trout feed

A feed additive and soybean meal-based technology, applied in the field of animal feed, can solve the problems of insufficient cholesterol supply, fish growth performance and immune function suppression, etc., to improve the activity of digestive enzymes and non-specific immunity of rainbow trout, reduce the amount of fish meal, The effect of reducing feed cost

Inactive Publication Date: 2011-11-02
YUNNAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
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Problems solved by technology

Therefore, hypocholesterolemia in fish caused by substituting soybean meal for fishmeal means that the supply of cholesterol in fish is insufficient, which leads to the suppression of growth performance and immune function of fish

Method used

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  • Additive for soybean pulp type rainbow trout feed
  • Additive for soybean pulp type rainbow trout feed
  • Additive for soybean pulp type rainbow trout feed

Examples

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Embodiment Construction

[0008] A soybean meal-type rainbow trout feed additive, using soybean meal as the main protein source (accounting for 70% of the total protein source), to prepare soybean meal-type rainbow trout feed. Cholesterol with different concentration gradients (0.3%, 0.6%, 0.9%, 1.2%, 1.5%) was added to soybean meal-based feed to screen the appropriate addition level of cholesterol in soybean meal-based rainbow trout feed, as follows: (g / 100g feed)

[0009] raw material Proportion raw material Proportion fish meal 20.0 Choline Chloride (50%) 0.5 soybean meal 57.0 Vitamin C 0.2 flour 1.8 Ethoxyquinoline (30%) 0.05 Soy Lecithin (40%) 5.0 Lys·HCl 0.35 fish oil 5.8 DL-Met 0.4 soybean oil 5.4 mineral premix 1.5 Ca(H 2 PO 4 ) 2 0.8 vitamin premix 1.2

[0010] Feed materials were crushed and passed through a 60-mesh sieve, mixed evenly according to the above formula, extruded into stri...

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Abstract

The invention discloses an additive for a soybean pulp type rainbow trout feed. The adding amount of cholesterol in the soybean pulp type rainbow trout feed (a soybean protein accounts for 70 percent of total proteins of the feed) is controlled to be between 0.6 and 1.2 percent. The additive remarkably improves the growth performance and nonspecific immunity of rainbow trout, greatly reduces the using amount of fish meal in the feed, and reduces the cost of the feed.

Description

technical field [0001] The invention relates to animal feed technology, in particular to a feed additive suitable for rainbow trout, which uses cholesterol as soybean meal feed. Background technique [0002] Fishmeal is an indispensable high-quality protein source in aquatic feed. With the rapid development of intensive aquaculture, the demand for fishmeal has risen sharply. However, due to the impact of overfishing, environmental pollution and the El Niño phenomenon, the global supply of fishmeal continues to decline. Therefore, seeking alternative sources of fishmeal protein has become a major problem to be solved urgently in the aquaculture industry. At present, relatively cheap plant-based protein sources are generally used to replace fish meal at home and abroad to prepare fish feed. Among them, soybean meal has become the most commonly used alternative source of fishmeal protein in the aquaculture industry due to its stable supply, low price and relative balance of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/18A23K1/16A23K20/10A23K50/80
CPCY02A40/818
Inventor 邓君明张曦毕保良陶琳丽孔令富安清聪杨秀娟
Owner YUNNAN AGRICULTURAL UNIVERSITY
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