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A feeding method for high-quality pork of Laiwu black pig

A feeding method and technology for black pigs, which are applied in the field of feeding high-quality Laiwu black pigs, can solve the problems of thick skin, eye muscle area, small proportion of hind legs, late body maturity, and low feed remuneration, so as to improve pig muscles. fat content, promoting growth and development, and improving health

Active Publication Date: 2019-03-12
山东和美华农牧科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of Laiwu pigs are poor fattening ability and carcass performance, slow weight gain, late body maturity, low feed remuneration, thick skin, thick fat, small eye muscle area and hind leg ratio, and low lean meat rate
How to improve the feeding method of Laiwu black pigs, there is no uniform standard at present, the feeding method of hybrid black pigs is not suitable for the improvement of the meat quality of purebred Laiwu black pigs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Nursery period: energy-to-egg ratio is 19.98, DE / lysine is 296, DE / methionine is 900, DE / (methionine+cystine) is 450, DE / threonine is 415, DE / tryptophan is 1500 , Growth period: energy-to-egg ratio is 21.11, DE / lysine is 326, DE / methionine is 1004, DE / (methionine+cystine) is 525, DE / threonine is 488, DE / tryptophan is 1693, fattening period: energy-to-egg ratio is 22.40, DE / lysine is 362, DE / methionine is 1116, DE / (methionine+cystine) is 563, DE / threonine is 518, DE / tryptophan for 1915.

Embodiment 2

[0027] Nursery period: energy-to-egg ratio is 20.52, DE / lysine is 326, DE / methionine is 1089, DE / (methionine+cystine) is 544, DE / threonine is 502, DE / tryptophan is 1814 , Growth period: energy-to-egg ratio is 21.71, DE / lysine is 362, DE / methionine is 1198, DE / (methionine+cystine) is 577, DE / threonine is 535, DE / tryptophan is 1921, fattening period: energy-to-egg ratio was 23.07, DE / lysine was 407, DE / methionine was 1306, DE / (methionine+cystine) was 611, DE / threonine was 581, DE / tryptophan for 2074.

Embodiment 3

[0029] Nursery period: energy-to-egg ratio is 21.06, DE / lysine is 363, DE / methionine is 1344, DE / (methionine+cystine) is 672, DE / threonine is 620, DE / tryptophan is 2239 , Growth period: energy-to-egg ratio is 22.26, DE / lysine is 403, DE / methionine is 1360, DE / (methionine+cystine) is 616, DE / threonine is 571, DE / tryptophan is 2080, fattening period: energy-to-egg ratio is 23.66, DE / lysine is 464, DE / methionine is 1434, DE / (methionine+cystine) is 641, DE / threonine is 612, DE / tryptophan for 2422.

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Abstract

The invention discloses a feeding method of high-quality pork of Laiwu black pigs. The feeding method comprises the following steps: firstly dividing the growth and development period of the Laiwu black pigs into a nursing period, a growing period and a fattening period, wherein the weight in the nursing period is 15 to 30 kg, the weight in the growing period is 30 to 60 kg, and the weight in the fattening period is 60 to 90 kg; setting amino acid models according to different periods, wherein in the nursing period, an energy-protein ratio is 19.98 to 21.54, DE (Digestible Energy) / lysine is 296 to 409, DE / methionine is 900 to 1701, DE / methionine + cystine is 450 to 850, DE / threonine is 415 to 785, and DE / tryptophan is 1500 to 2835; in the growing period, the energy-protein ratio is 21.11 to 22.79, DE / lysine is 326 to 464, DE / methionine is 1004 to 1378, DE / methionine + cystine is 525 to 624, DE / threonine is 488 to 581, and DE / tryptophan is 1693 to 2268; in the fattening period, the energy-protein ratio is 22.40 to 24.25, DE / lysine is 362 to 534, DE / methionine is 1116 to 1456, DE / methionine + cystine is 563 to 651, DE / threonine is 518 to 624, and DE / tryptophan is 1915 to 2485; designing a formula according to the ratio between the amino acids in the models, preparing daily ration, and feeding in stages. According to the feeding method disclosed by the invention, the lean meat percentage of the black pigs is increased, the content of intermuscular fat of the pigs is improved, and the pork yield and the evaluation score of the pork are increased.

Description

technical field [0001] The invention relates to a method for feeding high-quality pork from Laiwu black pigs. Background technique [0002] The historical breeding of Laiwu black pigs can be traced back at least to the primitive society in the new era. As one of the characteristic local breeds in Shandong Province, "Laiwu black" has high fecundity, strong nurturing ability, rich and fresh meat flavor, and stress resistance. It is listed as a key protected animal breed resource by the Food and Agriculture Organization of the United Nations, and listed as a national animal genetic resource protection breed by the Ministry of Agriculture. It is a characteristic breed in the current pork market. From the end of the 1950s to the mid-1970s, there was an unplanned introduction of new breeds of pigs and Laiwu black pigs for hybrid improvement, and purebred Laiwu pigs were constantly eliminated. By the end of the 1970s, purebred Laiwu black pigs were on the verge of extinction. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/02A23K20/142A23K10/30A23K10/37
CPCA01K67/02Y02P60/87
Inventor 杨在宾刘方波黄晓辉魏述东王小明
Owner 山东和美华农牧科技股份有限公司
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