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Combined culture method of fresh water grass carps

A breeding method and a combined technology, applied in the field of high-efficiency and environment-friendly breeding, can solve the problems of grass carp feeding habits, incompatibility of digestive physiology, nutrition and metabolism, etc., so as to reduce low dissolved oxygen stress, increase visual disturbance, and prolong feeding time. Effect

Active Publication Date: 2015-05-27
天津通威饲料有限公司
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to provide a combined culture method for freshwater grass carp. The culture method pays attention to the scientific feeding of the feed. According to the different growth stages of the grass carp, it is equipped with feed suitable for nutritional components. At the same time, the particle size of the feed is reasonably selected. It not only realizes high-efficiency feeding of feed, but also solves the problem of mismatch between the existing grass carp feed pattern and grass carp feeding habits, digestive physiology and nutrient metabolism, and is suitable for widespread use

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  • Combined culture method of fresh water grass carps
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  • Combined culture method of fresh water grass carps

Examples

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Embodiment 1

[0035] The present invention proposes a combined culture method for freshwater grass carp. The culture method focuses on the scientific feeding of feed, including a series of combined optimization according to different growth stages of grass carp with different nutritional components, product form, product particle size and water quality control. , this method not only improves the effective utilization rate of fish for feed, controls the cost of breeding, but also is an effective way to realize the sustainable development of aquaculture.

[0036] In this example, the weight of grass carp is fully considered, and feeds with different nutritional components and product forms are used for feeding. The breeding method is as follows: 2-50 g of grass carp is fed according to the weight of the fish, with a protein content of 32% and a particle size of 1.0 mm. For 50-250 g grass carp, feed with 30% protein content and 2.0mm particle size; for 250-750 g grass carp, feed with 28% prote...

Embodiment 2

[0038] The difference between this embodiment and Example 1 is that the feed involved in this embodiment is composed of sinking hard pellet feed and buoyant extruded feed. It is 0.8:1.

Embodiment 3

[0040] The difference between this example and Example 2 is that in this example, the feeding method is 4 times a day, 20 minutes each time, and 2 hours between each time.

[0041] Wherein, each feeding step of the feed is as follows:

[0042] A: 3 minutes before feed feeding, feed floating extruded feed every 10s,

[0043] B: After the fish are concentrated, feed the sinking hard pellet feed every 6s,

[0044] C: 4 minutes before the end of feeding, feed the floating extruded feed every 10s.

[0045] The advantage of adopting the above-mentioned feeding method is that following the "slow-fast-slow" and "less-more-less" feeding method, it is convenient to observe the concentration of fish and prevent fish from not concentrating or feeding too much after eating and dispersing. Feed waste.

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Abstract

The invention discloses a combined culture method of fresh water grass carps. The combined culture method comprises the following steps: feeding grass carps with the weight of 2g-50g with a feed with the protein content more than or equal to 32% and the particle size of 1.0mm-2.0mm; feeding grass carps with the weight of 50g-250g with a feed with the protein content of 30%-32% and the particle size of 2.0mm-3.0mm; feeding grass carps with the weight of 250g-750g with a feed with the protein content of 28%-30% and the particle size of 3.0mm-5.0mm; and feeding grass carps with the weight of more than 750g with a feed with the protein content less than or equal to 26% and the particle size of 5.0mm-7.0mm. According to the combined culture method, the scientific feeding of the feeds is emphasized; feeds with adaptive nutritional ingredients are fed according to different growth periods of the grass carps, and meanwhile, the particle sizes of the feeds are reasonably selected, so that the efficient feeding of the feeds is realized, and the problem that an existing feed adoption mode of the grass carps is not matched with the feeding habit, digestive physiology and nutrition metabolism of the grass carps is solved; the combined culture method is suitable for being widely popularized and used.

Description

technical field [0001] The invention relates to a combined culture method for freshwater grass carp, in particular to an efficient and environment-friendly culture method for freshwater fish under pond culture conditions, and belongs to the technical field of fish culture. Background technique [0002] Because of its delicious meat and rich polyunsaturated fatty acids, fish products have become a kind of meat product that is very beneficial to human health. Its consumption is increasing day by day and exceeds the growth rate of pork, beef and mutton, and it has become the main source of meat food. Grass carp has the characteristics of thick meat, white meat, delicious taste, and fewer intermuscular spines. At the same time, it grows rapidly, has small price fluctuations, and has a broad market prospect. On the other hand, grass carp also has good processing quality. In recent years, the output has continued to increase, and the annual output has exceeded 4 million tons, acco...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 邓玉平高启平李云兰李杰帅柯张德洪尹恒邹文超李建光陈德军
Owner 天津通威饲料有限公司
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