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Parent sturgeon feed

A technology of fish feed and feed, applied in the direction of animal feed, animal feed, application, etc.

Inactive Publication Date: 2014-12-03
FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] However, the current research on the ratio of DHA / EPA in freshwater carnivorous fish diets and the combination of antioxidant systems is still blank, especially in parental diets.

Method used

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Examples

Experimental program
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Embodiment Construction

[0040] Effects of DHA and EPA dosage and their ratio in broodstock feed on broodstock fecundity and larval growth and survival of Siberian sturgeon

[0041] 1. Feed formula and preparation for test broodstock

[0042] 1. The basic formula of feed for test broodstock consists of two parts:

[0043] 1) Basic nutritional formula (percentage by weight): Nordic low-temperature dried fish meal 40% (Triple nine, Denmark), Antarctic krill powder 6%, vitamin and mineral premix 2.5%, antioxidant premix 1%, Grobiotic 3%; soy protein concentrate: 16.5%, high-gluten wheat flour 21%.

[0044] Wherein, the ratio of the antioxidant premix is: tert-butylhydroquinone (TBHQ): 150-200mg / kg, vitamin E acetate: 800-1000g / kg, organic polymineral: amino acid chelated iron Amino Acid Chelate Zinc: 300-350mg / kg; Amino Acid Chelate Copper: 20-25mg / kg; Amino Acid Chelate Manganese: 30-40mg / kg; Yeast Selenium: 25-50mg / kg.

[0045] Fat source: 2% krill oil, 2% soybean lecithin, 4% fish oil, 2% Schizoch...

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Abstract

The invention relates to a parent sturgeon feed. Through experiments, the use amounts of two essential fatty acids including EPA (Eicosapentaenoic acid) and DHA (docosahexaenoic acid) in a parent sturgeon feed, the weight part ratio of the two fatty acids and the content of the essential fatty acids in the total fat of the feed are confirmed, and comparison is carried out on organic trace elements and inorganic trace elements. The invention further provides a basic nutrition formula of the parent feed. Experiments prove that the feed disclosed by the invention is capable of obviously promoting secretion of female hormone in the parent sturgeon breeding period, and increasing the brood amount, egg hatchability and fertility rate of parent sturgeons, the growth speed, the weight and the survival rate of fries.

Description

technical field [0001] The invention relates to a broodstock feed for sturgeon, which is a special feed capable of promoting reproductive performance and offspring development of sturgeon. Background technique [0002] Parent fish, also called species fish, is a fish used to reproduce fry, referring to male or female fish that have developed to sexual maturity and are capable of reproduction. Broodstock should be selected from among the best fish, so it is very important to ensure its nutritional level. [0003] Like other animals, the reproductive performance of fish is directly regulated by nutrients. Proper nutrient levels in broodstock diets can not only significantly improve egg and sperm quality, but also have long-lasting effects on offspring growth performance (Izquierdo et al., 2001). Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have important physiological functions in maintaining the integrity of cell membrane structure, maintaining osmotic pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/18A23K1/16A23K1/10A23K1/14
Inventor 薛敏罗琳王嘉吴秀峰郑银桦
Owner FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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