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Feeding method of tilapia

A feeding method and technology for tilapia, applied in fish farming, application, climate change adaptation, etc., can solve problems such as not being universally recognized and accepted, and fish rarely appear fully compensated growth, and achieve easy operation. , saving labor cost, simple feeding method

Inactive Publication Date: 2013-11-20
JIMEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a longer period of starvation is used and then the feed is resumed, the fish seldom exhibits a complete compensatory growth phenomenon, but more of a partial compensatory growth effect
Therefore, applying this practice to fish farming has significant risks and is not universally recognized and accepted

Method used

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  • Feeding method of tilapia
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  • Feeding method of tilapia

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] According to the nutritional needs of tilapia, a compound feed for tilapia with a crude protein content of 33% and a fat content of 8% was prepared with fish meal and soybean meal as protein source, fish oil, soybean oil and soybean lecithin as fat source. The feed formula and routine ingredients of the feed are shown in Table 1. According to the feed formula, all raw materials were crushed with a pulverizer and passed through a 40-mesh sieve, and then made into 1.5mm and 2.5mm hard pellet feed with a twin-screw granulator (CD4×1TS multifunctional catalyst molding machine), and dried naturally Store in -20°C refrigerator.

[0017] The juvenile tilapias used in the test were purchased from a farm in Zhangzhou, Fujian Province, transported to the breeding laboratory of Jimei University, disinfected with 2% saline water, and put into two glass fiber reinforced plastic barrels (900L / barrel) with water circulation filter devices for temporary breeding. During the temporary ...

Embodiment 2

[0028] Comprehensive analysis of the feeding effect of different cyclic feeding methods on tilapia in Example 1, we choose the cycle feeding method of starvation for 1 day-feeding for 3 days as an effective feeding method of this embodiment, and use other feed Be verified. Experimental feed source is identical with embodiment 1. Two feed formulations with the same protein level (30%) but different fat levels (5%, 11%) were designed (see Table 4), which were recorded as P30F5 and P30F11, respectively. Feed processing method is with embodiment 1. Experimental fish were also purchased from the farm described in Example 1. The experiment consisted of 4 experimental treatments: daily feeding P30F5 group (C1), starvation for 1 day-feeding for 3 days group (D1), daily feeding of P30F11 group (C2) and starvation for 1 day-feeding for 3 days group (D2 ). The test period is 44 days. Other test methods and feeding management are the same as in Example 1.

[0029] Table 4 Feed formu...

Embodiment 3

[0035] According to the results of Example 1 and Example 2, according to starvation for 1 day-feeding for 4 days, and then starvation for 1 day-feeding for 4 days as a kind of effective feeding method of this embodiment, and using the example 1 and the feed used in Example 2 to verify. Set up 4 experimental treatments: daily feeding P33F8 group, circulating feeding P33F8 group, daily feeding P30F5 group and circulating feeding P30F5 group, using tilapia with an average initial body weight of 9.58 grams for the breeding test, and the test period is 45 days . The source of test fish, test method and feeding management are the same as in Example 2. The results showed that the survival rate of fish in all treatment groups was 100%. The weight gain rates of the P33F8 group fed daily and the P33F8 group fed cyclically were 794.8% and 753.8%, the specific growth rates were 5.78% and 6.53%, and the food intake rates were 4.33% and 5.48% respectively; The weight gain rates of the P3...

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Abstract

The invention relates to an aquaculture method, and provides a feeding method of tilapia. By means of the feeding method of the tilapia, the tilapia can be fed with fodder regularly in a discontinuous mode, the labor intensity that cultivation workers need to feed the fodder every day is relieved, accordingly, the labor cost is saved, and cultivation benefits are improved. Juvenile tilapia is placed in an aquarium in a water circulating aquaculture system and is fed by tilapia matching fodder; during the cultivation period of the tilapia, the feeding mode that the tilapia is fed for 3-5 days every time after famishing for one day is adopted, excrement and residual fodder in the aquarium are removed by a siphonage every time before feeding and after feeding, and drained water is complemented by tap water which is fully aerated; during the feeding period, natural lighting is adopted, an air pump is utilized for air inflation continuously for 24 hours, the water temperature is 25.5-31.8 DEG C, and the amount of dissolved oxygen is 5.1-7.2mg / L.

Description

technical field [0001] The invention relates to an aquaculture method, in particular to a tilapia feeding method. Background technique [0002] In aquaculture, fish are usually raised in a consistent feed feeding method, that is, feed is regularly fed to fish day after day in a breeding cycle. Although this feeding method can ensure that the farmed fish can get Sufficient food is needed to maintain its stable and rapid growth, so that it can reach market specifications as soon as possible and shorten the breeding cycle. However, the pursuit of rapid growth is still the primary goal of aquaculture in China today. The traditional consistent feeding method meets this demand, and high-nutrient level feeds are commonly used. Therefore, this practice may lead to overnutrition of farmed fish. The resistance is reduced, the risk of fish suffering from disease increases, and the feed utilization efficiency of fish will also decrease accordingly. Therefore, the impact of traditional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 叶继丹陈建春王琨
Owner JIMEI UNIV
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