Pelteobagrus fulvidraco parent breeding feed, preparation method and identification method
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A technology for pelagic catfish and feed, applied to animal feed, animal feed, molding or processing of animal feed, etc., can solve the problems of water environment pressure, less research, fish metabolism burden, etc., and achieve high growth and feed utilization , low maturity coefficient, and good starvation tolerance of larvae
Pending Publication Date: 2022-05-13
INST OF AQUATIC LIFE ACAD SINICA
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[0006] (1) At present, there are few studies on the effect of dietary protein level in broodstock nutrition on egg and offspring quality
[0007] (2) At present, there are few relevant reports on the optimal protein content of the broodstock feed of the peltaceae, and in-depth research on the reproductive performance and spawning quality of dietary protein is urgently needed
[0008] The difficulty of solving the above problems and defects is: too low protein level will have adverse effects on the growth, feed utilization and reproductive performance of the broodstock of the yellow catfish, and too high feed protein will burden the fish body metabolism, increase feed cost and affect water environment stress
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[0052] The preparation method of parent catfish breeding feed of the present invention comprises:
[0053] Step 1, weigh protein, fat, sugar and multi-dimensional premix, multi-mineral premix, Ca(H 2 PO 4 ) 2 , choline chloride, ethoxyquinoline and cellulose;
[0054] Step 2, the protein, fat, sugar and multi-dimensional premix, multi-mineral premix, Ca(H 2 PO 4 ) 2 , choline chloride, ethoxyquinoline and cellulose are put into the machine and pulverized and uniformly mixed to obtain a mixture;
[0055] Step 3: adding distilled water to the obtained mixture for tempering, mixing evenly, granulating, drying, and spraying the weighed soybean oil and fish oil mixture.
[0056] Further, in step 3, the granulation includes: using a twin-screw granulator to process feed pellets with a diameter of 2.5mm.
[0057] Such as figure 1 Shown, the method that the identification feed protein level that the embodiment of the present invention provides includes the following steps to t...
Embodiment
[0063] Example: Effects of Feed Protein Level on Growth, Spawning and Larvae Quality of Peltaceae Broodstock
[0064] The present invention studies the influence of different protein levels in the feed on the nutrition and physiology of the female broodstock of the yellow catfish, including growth, spawning quality, and larvae quality, and explores the feed for the broodstock of the yellow catfish through indicators such as the spawning quality and the survival rate of the larvae. The optimal protein requirement, combined with broodstock growth, spawning performance and larvae quality, was used to comprehensively evaluate the effect of the feed on the reproductive performance of peltrow catfish broodstock.
[0065] 1. Material method:
[0066] 1.1 Experimental feed
[0067] In this experiment, five kinds of isoenergetic feeds with protein content of 34.4%, 38.8%, 44.2%, 49.3% and 52.7% were formulated. Feed raw materials are crushed, sieved, and mixed to make buoyant pellet ...
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Abstract
The invention belongs to the technical field of aquaculture, and discloses a pelteobagrus fulvidraco parent culture feed, a preparation method and an identification method, and the method comprises the following steps: analyzing the influence of different protein levels in the feed on the nutritional physiology, including growth, egg laying quality and larva fish quality, of the pelteobagrus fulvidraco parent fish and female fish; determining the optimum demand amount of feed protein of the parent pelteobagrus fulvidraco according to the indexes of the egg laying quality and the survival rate of the larva fish; the protein content of the pelteobagrus fulvidraco parent breeding feed is 49.3%. Basic data can be provided for improvement of a pelteobagrus fulvidraco nutrition requirement parameter database and development of efficient compound feed for pelteobagrus fulvidraco. Experiments show that in combination with the growth, feed utilization, reproductive performance and fry quality of the pelteobagrus fulvidraco, the protein content of the feed for the parent pelteobagrus fulvidraco is 49.3%, and at the moment, remarkably high growth and feed utilization, hatching rate and maturity coefficient, remarkably low fry malformation rate and better fry hunger tolerance can be obtained.
Description
technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a feed for parental breeding of yellow catfish, a preparation method and an identification method. Background technique [0002] At present, the yellow catfish is a high-quality special aquaculture species with a large market demand and high economic value because of its bright color, fresh and tender meat, delicious taste and rich nutrition. Seedlings are one of the important factors restricting the development of the yellow catfish aquaculture industry. The lack of protein in feed will affect fish growth, gonad development and fertilization, etc. At present, the optimal protein requirements, new protein sources and the addition of a specific amino acid in feed have effects on the growth and immunity of yellow catfish. There are many related studies, but there are still few related studies on the effect of dietary protein level in broodstock nutrition on egg and...
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