Environmental protection feed stuff for seedling stage of southern American white prawn

A white shrimp and feed technology, applied in animal feed, animal feed, climate change adaptation, etc., can solve problems such as nutritional imbalance and insufficient supply of biological bait, achieve fast growth, facilitate large-scale promotion, and improve feed utilization Effect

Inactive Publication Date: 2007-11-28
SUN YAT SEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide an environmentally friendly feed for Penaeus vannamei seedlings that can shorten the period of raising Penaeus vannamei seedlings, improve the survival rate, growth rate and disease resistance of Penaeus vannamei, and reduce environmental pollution. In the process of raising Penaeus

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  • Environmental protection feed stuff for seedling stage of southern American white prawn

Examples

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Effect test

Embodiment 1

[0023] Example 1: Prepare micro-granule feed according to formula 1 shown in Table 1, cultivate mysis shrimp in the later stage to 30 days after larvae, under the same conditions of water quality, management and initial body weight (initial body weight 2 mg, the same below), this Compared with the effect of feeding the feed of the invention, the body weight is nearly doubled (the final body weight of the feed of the present invention is 0.31g, and the final body weight of the commercial micro-granule feed is 0.17g) , the weight gain rate (WG) is doubled (the WG fed by the feed of the present invention is 15400, and the WG fed by the commercial feed is 8400), and the specific growth rate (SGR, % / day) is increased by 2 (the SGR fed by the feed of the present invention is is 16.81, and the SGR of commercial feed is 14.80), and the survival rate is increased by 28% (the survival rate of the present invention is 88%, and the survival rate of commercial feed is 60%); It is comparable...

Embodiment 2

[0024] Example 2: Prepare micro-pellet feed according to formula 2 shown in Table 1, raise larvae for 30 days, the weight gain rate is 14633.10, the specific growth rate is 16.64, the survival rate is 82%, and the ammonia nitrogen emission is 8 mg kg -1 h -1 , Compared with the imported commercial micro-pellet feed on the market, the specific growth rate is increased by nearly 13%, the survival rate is increased by nearly 22%, and the ammonia nitrogen emission is reduced by 45% compared with the general commercial commercial Penaeus vannamei micro-pellet feed on the market. .

Embodiment 3

[0025] Embodiment 3: Prepare micro-granule feed according to formula 3 shown in Table 1, raise larvae for 30 days, the weight gain rate is 22894.41, the specific growth rate is 17.52, the survival rate is 80%, and the ammonia nitrogen emission is 7 mg kg -1 h -1 , Compared with the general imported commercial micro-pellet feed on the market, the specific growth rate is increased by 18%, the survival rate is increased by 20%, and the ammonia nitrogen emission is reduced by 52% compared with the general commercial commercial Penaeus vannamei micro-pellet feed on the market.

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Abstract

The present invention relates to one kind of environment friendly feed for white South America prawn fry. The environment friendly feed can promote the growth of white South America prawn fry, raise its survival rate and disease resistance, and reduce environmental pollution. The feed has nutritious components comprising coarse protein 50-55 wt%, coarse fat 15-20 wt%, total sugar 6-7 wt%, ash weight portions15-20 wt%, and water 6-10 wt%; and material composition comprising protein material 69.75-79.47 wt%, fat material 4-7 wt%, sugar material 5 wt%, feed adhesive 3 wt%, antioxidant 0.305-1.205 wt%, phagostimulant 1.6 wt%, composite vitamins 2 wt% and composite mineral salts 1-4 wt%.

Description

technical field [0001] The invention relates to a feed for Penaeus vannamei, in particular to an environment-friendly feed for the seedling stage of Penaeus vannamei. Background technique [0002] In the late 1980s, Penaeus vannamei was introduced into my country. It is very popular among shrimp farmers due to its fast growth and strong disease resistance. It is currently an important seawater and brackish freshwater aquaculture shrimp in China. In the southern coastal areas, it has become the main source of income for farmers to increase production and income due to its fast growth rate, high feed efficiency and large economic benefits, and has broad market prospects. However, at present, the key to large-scale farming of Penaeus vannamei is the quality of the seedling stage. The quality of the seedling stage is generally restricted by the following two factors. It is an artificial compound feed for each metamorphosis stage of shrimp seedlings, and the sources of shrimp fla...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/00A23K1/16A23K1/175A23K10/16A23K10/22A23K20/10A23K20/105A23K20/142A23K20/147A23K20/158A23K20/163A23K20/174A23K20/26A23K50/80
CPCY02A40/818
Inventor 刘永坚田丽霞牛津阳会军
Owner SUN YAT SEN UNIV
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