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Method for constructing low-backfat-thickness pig model

A technology of backfat thickness and construction method, applied in the field of animal science, can solve the problems of limited effect of reducing backfat thickness, deposition of subcutaneous fat, poor stability, etc., achieving low cost, reducing accumulation of subcutaneous fat, and reducing backfat thickness. Effect

Inactive Publication Date: 2020-08-07
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the industry usually adopts the method of matching parents to reduce the backfat thickness of pigs, which has the disadvantages of low efficiency, limited effect of reducing backfat thickness, and poor stability
There is also a way to reduce the backfat thickness of pork pigs by adding high-grade raw materials in the feed, but it has the disadvantage of high cost, and even has the problem of being more conducive to the deposition of subcutaneous fat

Method used

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  • Method for constructing low-backfat-thickness pig model
  • Method for constructing low-backfat-thickness pig model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This example provides a method for constructing a pig model with low backfat thickness, without adding expensive high-grade raw materials to the diet, and without selecting parents of breeding pigs with low backfat thickness, which has the advantages of low cost, easy operation and stability The advantages of good sex and ideal effect.

[0026] The construction method of the low backfat thickness pig model of the present embodiment specifically comprises the following steps:

[0027] S1. Select 4-5 month-old healthy and strong "Du Changda" castrated three-way hybrid pigs;

[0028] S2. The piglets were adaptively fed with the basic diet for 3 days, and the feeding temperature was 26°C;

[0029] S3. Continue feeding the piglets with a high-calcium diet for 27 days at a feeding temperature of 26° C. to obtain a pig model with low backfat thickness. The mass percentage of calcium in the high-calcium diet is 1.2%.

[0030] It should be noted that for the above steps, in th...

Embodiment 2

[0034] This example provides a method for constructing a pig model with low backfat thickness, without adding expensive high-grade raw materials to the diet, and without selecting parents of breeding pigs with low backfat thickness, which has the advantages of low cost, easy operation and stability The advantages of good sex and ideal effect.

[0035] The construction method of the low backfat thickness pig model of the present embodiment specifically comprises the following steps:

[0036] S1. Select 4-5 month-old healthy and strong "Du Changda" castrated three-way hybrid pigs;

[0037] S2. The piglets were adaptively fed with basic diet for 4 days, and the feeding temperature was 25°C;

[0038] S3. Continue feeding the piglets with a high-calcium diet for 26 days at a feeding temperature of 25° C. to obtain a pig model with low backfat thickness. The mass percentage of calcium in the high-calcium diet is 1.5%.

[0039] It should be noted that for the above steps, in the st...

Embodiment 3

[0043] This example provides a method for constructing a pig model with low backfat thickness, which does not need to add expensive high-grade raw materials to the diet, and does not need to select parents of breeding pigs with low backfat thickness. The advantages of good sex and ideal effect.

[0044] The construction method of the low backfat thickness pig model of the present embodiment specifically comprises the following steps:

[0045]S1. Select 4-5 month-old healthy and strong "Du Changda" castrated three-way hybrid pigs;

[0046] S2. The piglets were adaptively fed with the basic diet for 5 days, and the feeding temperature was 24°C;

[0047] S3. The piglets were fed for 25 days with a high-calcium diet at a temperature of 24° C. to obtain a pig model with low backfat thickness. The mass percentage of calcium in the high-calcium diet was 2.0%.

[0048] It should be noted that for the above steps, in the step S2, the basic diet includes the following components accor...

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Abstract

The invention provides a method for constructing a low-backfat-thickness pig model. The method comprises the following steps: S1, selecting healthy piglets at ages of 4-5 months; S2, adopting basal diet to adaptively feed piglets for 3-7 days; S3, continuously feeding the piglets for 20-30 days by high-calcium diet to obtain the low-backfat-thickness pig model, wherein the mass percentage of calcium in the high-calcium diet is 0.7%-4.0%. The composition and proportion of the basal diet are adjusted, for the high-calcium diet, mineral meal is added on the basis of the composition of the basal diet to control the content of Ca in the high-calcium diet, so that accumulation of subcutaneous fat is reduced, backfat thickness is reduced, the lean meat percentage is increased, and the method hasthe advantages of being low in cost and convenient to operate. The method can be applied to the pig breeding industry, and lays a technical foundation for production of tender, tasty and fine pork products with a high lean meat rate.

Description

technical field [0001] The invention belongs to the technical field of animal science, and in particular relates to a method for constructing a pig model with low backfat thickness. Background technique [0002] Fat in livestock and poultry is an essential factor for maintaining life, growth and production. In livestock and poultry nutrition, fat is not only an important source of energy for livestock and poultry, but also provides essential fatty acids for livestock and poultry, and promotes the absorption and utilization of fat-soluble vitamins. However, the subcutaneous fat of hogs should not be too high. Practice has proved that the reduction of the backfat thickness of hogs (that is, the reduction of subcutaneous fat) is conducive to improving the utilization rate of the diet and increasing the lean meat rate, so that the meat tastes fresh and delicate. [0003] At present, the industry usually adopts the method of matching parents to reduce the backfat thickness of pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02A23K50/30A23K10/30A23K10/37A23K20/142A23K20/174A23K20/24A23K20/10A23K20/20
CPCA01K67/02A23K10/30A23K10/37A23K20/10A23K20/142A23K20/174A23K20/20A23K20/24A23K20/30A23K50/30Y02P60/87
Inventor 周磊李一星张志望
Owner GUANGXI UNIV
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