Method for establishing leiocassis longirostris breeding dynamic feeding table

A method of establishment and technology of long-snout catfish, applied in fish farming, application, climate change adaptation, etc., can solve the problems that the feeding amount cannot be adjusted in time, the energy value of fish body is ignored, and the excretion of metabolic waste cannot be estimated.

Inactive Publication Date: 2010-06-16
INST OF AQUATIC LIFE ACAD SINICA
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Problems solved by technology

However, there are serious defects in this model: (1) the extrapolation results will lead to serious deviations outside the established conditions of the model; (2) the excretion of metabolic waste cannot be estimated; (3) when the feed and breeding environment change, The feeding amount cannot be adjusted in time; (4) It is mainly based on the increase of body length and fresh weight or feed conversion efficiency, rather than the available energy and nutrient content of feed combined with fish body protein and energy storage, which is not suitable

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  • Method for establishing leiocassis longirostris breeding dynamic feeding table
  • Method for establishing leiocassis longirostris breeding dynamic feeding table
  • Method for establishing leiocassis longirostris breeding dynamic feeding table

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Embodiment Construction

[0121] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0122]A method for establishing a dynamic feeding table for long-nose catfish culture, the steps are as follows:

[0123] 1. Conditions of Growth Experiment

[0124] 1.1 The effect of feeding level on feeding, growth and energy budget

[0125] To study the effects of different feeding levels on the feeding, feed utilization and energy budget of Long-snorted Catfish. Five groups of feeding levels were designed in the experiment, namely: starvation, 0.8, 1.6, 2.4% of initial body weight / day and fed groups, and each feeding level had three repetitions. The experiment was carried out in a recirculating aquaculture system consisting of 15 fish tanks (water volume 120 liters). The dissolved oxygen in the water was higher than 7.5 mg / L, the water temperature was maintained at about 29±2°C, the pH value was 7.7-8.0, and the ammonia nitrogen concentration was lower than ...

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Abstract

The invention discloses a method for establishing a leiocassis longirostris breeding dynamic feeding table, comprising the following steps of: 1. researching the dynamic relationship between the feeding level, the weight and the water temperature and the maximum feeding rate, the defecation rate, the excretion rate, the body heat gain, the standard metabolism and the activity metabolism in the energy budget expression through a growth experiment; 2. establishing an optimum feeding rate model of leiocassis longirostris on the basis of a bioenergetic model; and 3. inputting the breeding days, water temperature, the initial body weight of fishes, initial energy values of fish bodies, the feed protein level and the feed energy value by using a computer program, outputting the daily weight growth, the maximum daily feeding quantity and the optimum feeding quantity and forming the leiocassis longirostris breeding dynamic feeding table by calculation. The dynamic feed can accurately forecastthe daily growth and the daily feeding rate of the leiocassis longirostris in the breeding process under different environments in time, which not only cannot waste the feed to cause the cost increase and the secondary pollution of the feed, but also cannot influence the growth of fishes, caused by lack feeding of the feed.

Description

technical field [0001] The invention relates to the technical field of aquaculture, and more specifically relates to a method for establishing a dynamic feeding table for long-snout catfish culture, and is especially suitable for long-snout catfish culture. Background technique [0002] Accurate and appropriate feed dosage is one of the key factors in the aquaculture industry and the most important part of aquaculture technology, which is the key factor to reduce the feed coefficient. If the feeding amount is insufficient, the fish will be in a semi-starved state, which cannot meet the energy and nutritional needs of the fish, and the growth and development will be slow. Low, resulting in waste of feed, increasing the re-pollution of residual bait to the breeding water, and the increase of diseases, the breeding benefits have dropped significantly. [0003] At present, in the intensive aquaculture of long-snout catfish with high input and high output using compound feed, th...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 韩冬解绶启朱晓鸣杨云霞聂光汉
Owner INST OF AQUATIC LIFE ACAD SINICA
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