This standard specifies the product classification, product specifications, technical requirements, test methods, inspection rules, labeling, packaging, transportation and storage of grass carp compound feed pellets. This standard applies to grass carp compound feed pellets. SC/T 1024-2002 Grass carp compound feed SC/T1024-2002 Standard download decompression password: www.bzxz.net

1CS 67. 120. 30
Aquatic Industry Standard of the People's Republic of China
SC/T1024-2002
Replaces SC/T1024-1997
Formula feed for grass carp
Promulgated on 2002-11-05
Implementation on 2002-12-20
Ministry of Agriculture of the People's Republic of China
S/11024--2002
This standard specifies the performance indexes of formula feed for grass carp in an all-round way. The original SC/T1024-1997 "Nutrient Standard for Formula Feed for Grass Carp" only specifies the nutrient content and corresponding test methods of formula feed for grass carp. This standard not only includes the technical contents of SC/T 1024-1997, but also makes adjustments to some indexes.
Appendix A of this standard is an informative appendix.
This standard is proposed by the Fisheries Bureau of the Ministry of Agriculture.
This standard is under the jurisdiction of the Freshwater Aquaculture Sub-Technical Committee of the National Technical Committee for Aquatic Standardization. The drafting unit of this standard is the Yangtze River Fisheries Research Institute of the Chinese Academy of Fishery Sciences. The main drafters of this standard are Liao Chaoxing, Wen Hua, Zhou Ruiqiong and Xu Zhongfa. The previous versions of the standards replaced by this standard are: SC/T10241997. 1 Scope
Grass carp compound feed
SC/T 1024-—2002
This standard specifies the product classification, product specifications, technical requirements, test methods, inspection rules, labeling, packaging, transportation and storage of grass carp compound pellets.
This standard is applicable to grass carp compound pellets. 2 Normative non-use documents
The following documents become the terms of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to investigate whether the latest versions of these documents can be used. For any undated referenced document: the latest version applies to this standard. GB/T5917—1986 Determination of particle size of compound feed GB/T 59181997 Determination of uniformity of mixed feed GB/T6003.1-1997 Metal wire mesh test hoof GB/T 6432 GB/T 6433 GB/T 6434 GB/T 6435 GB/T 6437 GB/T 6438 GB/T 6439 GB/T 6440 GB/T 6441 GB/T 6442 GB/T 6443 GB/T 6444 GB/T 6445 GB/T 6446 GB/T 6447 GB/T 6448 GB/T 6449 GB/T 6450 GB/T 6451 GB/T 6452 GB/T 6453 GB/T 6454 GB/T 6455 GB/T 6456 GB/T 6457 GB/T 6458 GB/T 6459 GB/T 6460 GB/T 6461 6438
GB10648
Method for determination of crude protein in feed
Method for determination of crude fat in feed
Method for determination of crude fiber in feed
Method for determination of moisture in feed
Method for determination of total phosphorus in feedPhotometric methodMethod for determination of crude protein in feed
Feed label
Feed sampling method
GB/T 14699. 1
GB/T16765—1997General technical conditions for pellet feedGB/T18246-2000Determination of amino acids in feedPollution-free foodSafety limit of compound feed for fisheryNY5072
3Product classification
Grass carp compound pellet feed is divided into three types: fish feed, fish feed and edible fish feed. The feeding objects of various compound feeds are shown in Table 1. Table 2: The corresponding feeding objects of various compound feeds Product category
Weight of feeding objects
4 Product specifications
Fish fry feed
Grass carp compound feed Product specifications Table 2.
Fish fingerling feed
Unit: gram
Edible fish feed
SC/r 1024—2002
Product category!
Particle diameter/mm
Fish fry feed
0. 15~0. 450. 5~1. 2
Table 2: Grass carp compound feed Product specifications
Fish fingerling feed
Note: C is fine granules or irregular fine granules; P is granules, and the length of the granules is 1 to 2 times the particle diameter. 5
Technical requirements
Requirements for raw and auxiliary materials
Toxic and deteriorated raw materials shall not be used; the additives used shall comply with the relevant national regulations on feed additives. 5.2 Physical indicators
Physical indicators should meet the requirements of Table 3.
Table 3 Physical indicators of grass carp compound feed
Official indicators
Mixing uniformity (CV)/(r)
Pellet feed water stability (dissolution rate)/(%)Pellet feed powdering rate/(damage)
Raw material crushing particle size (screened material)/(K)
5.3 Chemical composition indicators
Fish fry feed (soaked in water for 5 min)
Fish fingerling feed (soaked in water for 5 min)
Edible seedling feed (soaked in water for 5 min)
Fish bud feed
Fish fingerling bait
Edible fish feed
Fish fry seasoning (sieve size 0.250 mm)Fish fingerling stewing feed (sieve size 0.355 mm) The chemical composition index of edible fish feed (sieve size 0.500mm) shall meet the requirements of Table 4
Fish fungus feed
Fish fingerling feed
Edible fish feed
Crude protein
Sulfur-containing amino acids are methionine and cystine
Chemical composition index of grass carp compound feed
Crude fat
Recommended values ​​of other nutritional components are shown in Appendix A. 5.4 Safety and health indicators
Implement according to the provisions of NY5072.
6 Test method
6.1 Determination of sensory indexes
Crude fiber content
Crude fiber content
Edible fish feed
Uniform color, uniform size, no fermentation
enzymatic change, caking or peculiar smell, no insecticide
Sulfur-containing aminoaldehyde
Lysine
SC/T 1024-~2002
Put the sample in a gray porcelain plate and evaluate it through normal sensory test without external interference. 6.2 Determination of original crushed particle size
For fish feed, fingerling feed and edible fish feed, test sieves with basic mesh sizes of 0.250 mm, 0.355 mm and 0.500 mm in accordance with GB/T 6003.1:-1997 shall be used respectively, and the method of GB/T 5917-1986 shall be followed. 6.3 Determination of mixing uniformity
According to GB/T 5918-1997.
6.4 Determination of stability in water
6.4.1 Receivers and equipment
Balance: sensitivity 0.01g;
Metal mesh plate: height 6.5 cm, diameter 12 cm, basic mesh size one level smaller than the particle diameter to be measured; Thermometer: accuracy 0.1°C;
Stopwatch.
6. 4. 2 Determination steps
Accurately weigh 10g of pellet feed with the same diameter and length and evenly distribute it on the sieve plate, then place it in the still water of a 25℃28℃ aquarium or water tank. If the pellets clump or float, place another sieve plate on the pellets to disperse them in the water. After soaking for 5 minutes, take the sieve plate out of the water, tilt it to drain, take out the soaked pellets and place them in a 105℃ oven to dry until constant weight. At the same time, take another pellet that is not flooded with water and measure its moisture content. The stability of compound feed in water is expressed by the loss rate, which is calculated by formula (1): P = m (1-X) -
(1 —
Wherein:
Mass of compound feed used as sample, in grams (area);Mass of feed in the sieve plate after drying, in grams (g); Loss rate,:
X—moisture content,%.
m×100
Two parallel samples should be taken for each sample for determination: the arithmetic mean value is taken as the result, and the relative deviation is allowed to be within 4%. 6.5 Determination of pulverization rate of granular feed
It shall be carried out in accordance with the provisions of GB/T 16765-1997, in which the basic size of the sieve holes of the test sieve shall be one level smaller than the diameter of the measured particles. 6.6 Determination of moisture
It shall be carried out in accordance with GR/T6435.
6.7 Determination of crude protein
It shall be carried out in accordance with GB/T
6.8 Determination of crude fat
According to GB/T 6433.
6.9 Determination of crude fiber and maleate
According to GB/T 6434:
6.10 Determination of crude ash
According to GB/T 6438.
6. 11 Determination of total phosphorus
According to GB/T 6437.
6. 12 Determination of lysic acid and sulfur-containing amino acids
According to GB/T18246-2000.
6.13 Safety and sanitation inspection
According to NY 5072.
SC/T 1024--2002
7 Inspection rules
7. 7 Inspection classification
7.1.1 Shipping inspection
Inspect the sensory indicators, moisture, crude protein, crude fat, crude ash, packaging and labeling specified in the standard. 7.1.2 Type inspection
Type inspection is for all items specified in this standard. Type inspection shall be carried out in one of the following situations: when the product is put into production;
when there are major changes in material formula and process that may affect product performance;
during normal production, inspection shall be carried out periodically after a certain amount of production has been accumulated;
when the production is resumed after a long-term suspension;
when there is a major difference between the factory inspection result and the last type inspection result;
when the national quality supervision and inspection agency proposes a requirement for type inspection. 7.2 Sampling and batching
7.2.1 Composition of batches
The finished products produced in one shift are regarded as one batch of products. 7.2.2 Sampling method
It shall be carried out in accordance with the provisions of GB/T14699.1.
7.3 Judgment rules
If the product is found to be obviously moldy, worm-infested, lumpy or smelly during the inspection, the product shall be judged as unqualified. If one of the indicators of safety limit, mixing uniformity, moisture, crude protein pressure, crude fat, crude ash, and total phosphorus is not qualified, double sampling should be conducted in the original sample for re-inspection. If one of the re-inspection results is still unqualified, the product shall be judged as unqualified. If any two or more of the other indicators are unqualified after re-inspection, the product shall be judged as unqualified.
8. Labeling, packaging, transportation, and storage
8. 1 Labeling
Product labeling shall be carried out in accordance with the provisions of GB10648, and the guaranteed values ​​of calcium and salt are not required by this standard. 8.2 Packaging
Fish fry feed shall be packaged in moisture-proof polyethylene woven bags of 10kg, 20kg or 40kg. Fingerling feed and edible fish feed shall be packaged in moisture-proof polyethylene woven bags of 40kg or 50kg. The packaging should be accompanied by a product manual to explain the product's main technical indicators and usage requirements. 8.3 Transportation
Package and transportation. Pay attention to moisture, humidity, and toxic pollution. It is strictly forbidden to use hand hooks to carry, and it should be placed with care. 8.4 Purchase and storage
It should be stored in a dry, well-ventilated warehouse to avoid direct sunlight. When stacking, the weight of each stack should not exceed 20t and the height should not exceed 10 layers. At the same time, pay attention to insect and rodent prevention, and also prevent toxic pollution. Under the specified storage conditions, the shelf life of the product shall not be less than 2 months. A.1 Other essential amino acid content
Appendix A
<Informative Appendix
Recommended content of other nutrients
Recommended values ​​of other essential amino acid content are shown in Table A.1. Table A.2 Recommended values ​​of other essential amino acid content See Table A.3. Table A.3 Recommended values ​​of vitamin content See Table A.4.
Brt
Bg
Niacin/
(mg,kg)
mag/kg
(mg/kg>
[mg/kg]9
Lysine
Isoleucine
Recommended values ​​of other inorganic elements
(mg/kg)
Myoenzyme?
(mg/kg)）
4x10-!
Leucine
1. 2×10--
Recommended value of vitamin content
tmg/kg)
(mg/kg）
E/
4×102
Nutrition oxide
(mg/kg/itug/kg）
(ng/kg）
SC/T 1024—2002
Phenylalanine
Tryptophan
Unit is gram per dry gram
(mng/kg)
(mg/kg）
8×10-1
Vitamin D/
Leucine
1. 2×10--
Recommended value of vitamin content
tmg/kg)
(mg/kg）
E/
4×102
Nutronic acid
(mg/kg/itug/kg）
(ng/kg）bzxz.net
SC/T 1024—2002
Phenylalanine
Tryptophan
Unit is gram per dry gram
(mng/kg)
(mg/kg）
8×10-1
Vitamin D/
Leucine
1. 2×10--
Recommended value of vitamin content
tmg/kg)
(mg/kg）
E/
4×102
Nutronic acid
(mg/kg/itug/kg）
(ng/kg）
SC/T 1024—2002
Phenylalanine
Tryptophan
Unit is gram per dry gram
(mng/kg)
(mg/kg）
8×10-1
Vitamin D/
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