A kind of feeding method of Litopenaeus vannamei broodstock

A technology of L. vannamei and prawns, applied in the field of aquatic animal nutrition and feed, to achieve the effects of reducing the amount of bait fed, reducing feed residues, and saving labor

Active Publication Date: 2020-11-03
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the effect of feeding frequency on the breeding stage of broodstock has not been reported in detail, so it is very meaningful to explore the appropriate feeding frequency during the breeding period of broodstock

Method used

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  • A kind of feeding method of Litopenaeus vannamei broodstock
  • A kind of feeding method of Litopenaeus vannamei broodstock
  • A kind of feeding method of Litopenaeus vannamei broodstock

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Experimental program
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Effect test

Embodiment

[0015] Select 15-month-old female shrimp with healthy body, normal body color, and immature ovaries and male shrimp with a body length of 13-14 cm. The male and female were kept in separate ponds for seven days, and the experimental grouping was carried out after the broodstock ate normally and their vitality recovered.

[0016] According to body weight and body length, they were divided into three groups with 40 shrimps in each group. In this experiment, 3 feeding frequencies were set for manual feeding, namely 2 times / day, 3 times / day, and 4 times / day. The specific feeding time is shown in Table 1. In the experiment, full feeding was adopted, and the amount of feeding was adjusted in a timely manner according to the feeding situation. After feeding for 30 days, the final body length and body weight of the broodstock without eye stalk were measured.

[0017] Table 1 Feeding frequency and feeding time

[0018]

[0019] Use the seawater circulation system to control the w...

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Abstract

The invention discloses a litopenaeus vannamei parent shrimp feeding method, and belongs to the field of aquatic animal nutrition and feed. According to the feeding method, the frequency of feeding parent shrimp feed is twice a day; the parent shrimp feed comprises 58.7% of crude protein, 7.5% of crude fat, 46.52% of polyunsaturated fatty acid, 16.20% of EPA and 10.41% of arachidonic acid, and flavor amino acid in the parent shrimp feed accounts for 58.62% of total amino acid. The number of feeding times is reduced due to the frequency of twice a day, the labor is saved, and the growth, reproductive performance and generation quality of litopenaeus vannamei are not influenced. The bait feeding quantity is reduced due to the frequency of twice a day, the growth, reproductive performance and generation quality of litopenaeus vannamei are not influenced, and the situation that the feed is residual can be reduced at the same time.

Description

technical field [0001] The invention belongs to the field of aquatic animal nutrition and feed, and in particular relates to a method for feeding broodstock of Litopenaeus vannamei. Background technique [0002] Litopenaeus vannamei is a tropical type open seminal vesicle species and is one of the few excellent cultured shrimp species recognized in the world. The bait nutrition and feeding strategy of broodstock are the key factors to determine the production efficiency of seedlings. Determining the appropriate bait and feeding method will not only help to improve the feeding rate, bait utilization rate and seed quality of broodstock, but also avoid the waste of bait, thereby reducing the pollution to the breeding environment. Studies have shown that in the process of gonad development and reproduction, broodstock need to consume a large amount of material and energy, and need to synthesize and accumulate a large amount of yolk material for embryo development. If the feedi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/59
CPCY02A40/81
Inventor 梁萌青汪春玲徐后国
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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