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Turbot parent fish feed

A technology for fish feed and turbot, which is applied in animal feed, animal feed, application and other directions, can solve the problems affecting the survival rate and growth rate of larvae and juveniles, the number of spawning times of turbot broodstock is low, and the quality of eggs is poor. The effect of increasing survival and growth rates, improving quality, and increasing the number of spawns

Inactive Publication Date: 2012-09-19
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a feed for turbot broodstock, which solves the problems that the current turbot broodstock has few spawning times, low spawning amount, and poor egg quality so that the survival rate and growth rate of larvae are affected.

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Embodiment Construction

[0012] Describe technical content of the present invention in detail below by embodiment.

[0013] In this example, compound feed is made by adding different amounts of vitamin C with an effective content of 30% polyphosphate dosage form to the feed of turbot broodstock, feeding turbot broodstock for 6 months, and observing its spawning performance and offspring Quality to prove the beneficial effect of the present invention compared with the prior art.

[0014] The basal feed was formulated with fish meal and casein as protein source, fish oil as fat source, and high-gluten flour as sugar source (see Table 1). Add vitamin C polyphosphate equivalent to vitamin C content of 0mg / kg, 800mg / kg, 4800mg / kg in the basic feed respectively, and prepare three kinds of experimental feeds. Vitamin C polyphosphate active content is 30%. All raw materials are crushed and passed through a 60-mesh sieve. Mix all raw materials with fish oil and vitamin C in the form of polyphosphate to make...

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Abstract

A turbot parent fish feed belongs to the field of aquatic animal nutrition and feed. A basal feed comprises the following materials by mass percentage: 70% of fish meal, 4% of casein, 15% of high-gluten flour, 2% of phospholipids, 1% of choline, 0.5% of vitamin mixture, 0.5% of mineral mixture, 1.5% of dicalcium phosphate and 5.5% of fish oil; then 4800 mg / kg of vitamin C is added to the basal feed; and the added vitamin C is vitamin C poly-phosphate with 30% of effective content. The vitamin C of polyphosphate is added in the turbot parent fish feed to make the effective content of the vitamin C reach 4800mg / kg, so that the turbot spawning rate can be improved, the fecundity can be improved, the egg quality is improved, and the survival rate and the growth rate of the postlarva can be improved.

Description

Technical field: [0001] The invention belongs to the field of nutrition and feed for aquatic animals, in particular to a feed for broodstock turbot. Background technique: [0002] With the continuous expansion of my country's aquaculture production scale, seedlings are increasingly valued by people. In order to obtain a large number of high-quality seedlings, the breeding of broodstock is particularly important. Studies have shown that the nutritional status of broodstock affects the reproductive performance of broodstock. However, broodstock nutrition is one of the least-involved fields in fish nutrition research, and people lack understanding of most fish reproductive nutritional requirements, which hinders the development of full-price compound feeds for broodstock. Broodstock feed nutrition plays an important role in improving the amount of eggs laid, the quality of eggs and larvae, and the growth and survival of larvae (Zhang Guohui, Huazhong Agricultural University, 2...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/10A23K1/16A23K1/14A23K1/175
Inventor 梁萌青张海涛曲江波杨志郑珂珂
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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