Pig breeding: not only to break the monopoly, but also to move towards the high-end

Not long ago, the Ministry of Agriculture and Rural Affairs issued the "National Livestock and Poultry Genetic Improvement Plan (2021-2035)".

Many people may not know that the dishes we eat with local characteristics may be "imported"

China is the largest country in the world for pig production and pork consumption.

The situation of re-introducing and neglecting selection must be changed

In fact, there are many local breeds of live pigs in China.

"For the modern pig breeding industry, it is required for pigs to live more, die less, grow faster, eat less, produce more meat, have good meat quality, and sell for a good price

Like Rongchang pigs, the production cost of local pig breeds is higher than imported pigs, but the quality and price are not reflected.

“Breeding is actually a process of continuous genetic improvement and continuous improvement of pig performance according to industry needs

Although the supply rate of the core species of livestock and poultry in China has exceeded 75%, there is still a gap with developed countries

Continuously promote the industrialization of local pig breeds

"There is no gap between domestic pig breeding technology and foreign countries.

As one of the three excellent local pig breeds in China, how to adapt it to industrial production? The Chongqing Academy of Animal Husbandry is the leader in this regard

"Since the 1980s, we have used Rongchang pigs as the basic breeding material, combined crossbreeding and selection, and introduced an appropriate proportion of Danish Landrace pig blood, which became the first domestic low-external blood content (25%).

It is understood that in addition to the relatively well-developed local breeds such as Rongchang pig, Taihu pig, and Ningxiang pig, there are also many local pig breeds produced on a large scale, such as the Xiangcun black pig in Hunan and the No.

In order to continuously improve the meat quality, the Chongqing Academy of Animal Husbandry has continued to innovate in technical means and independently developed the in vivo prediction technology of intramuscular fat

In order to protect local resources, the Chongqing Academy of Animal Science established a cryopreservation library in 2006 to freeze semen, oocytes, and embryos to avoid the impact of African swine fever and other epidemics that would cause the extinction of local breeds

Realizing overtaking in the corners in the breeding of professional pig breeds

"Sterile pigs", "SPF pigs" and "humanized antibody pigs", these pigs are not for eating, they are the "babies" of pigs

Since the Chongqing Academy of Animal Science developed China’s only humanized antibody mouse with independent intellectual property rights in February last year, their bigger goal is to breed humanized antibody pigs, which is an important animal resource for biosafety prevention and control.

SPF pigs, also called specific pathogen-free pigs, are standard laboratory animals that must be used in the evaluation and verification of vaccines for pigs
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In 2019, 28 SPF Rongchang pigs produced and bred by Chongqing Academy of Animal Science "flew" to the Harbin Veterinary Research Institute of the Chinese Academy of Agricultural Sciences to develop Gandang "white mice" for China's African swine fever vaccine
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Prior to this, only a few units in China mastered the SPF pig technology, and the source was mainly imported from abroad
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Ge Liangpeng said that the mass production of SPF Rongchang pigs can be realized in a short time because they have mature SPF pig breeding core key technologies-pig aseptic cesarean section technology and pig aseptic feeding technology, which is far more difficult than SPF pigs.

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Sterile pigs refer to experimental pigs without any microorganisms in their bodies.
They can be used for vaccines for children, quality evaluation of infant milk powder, development of dietary products for special patients, and health research for premature infants
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Chongqing Academy of Animal Husbandry is the only unit in China that has a sterile pig breeding platform.
Using the existing sterile pig breeding technology system, the institute has also carried out the breeding and industrial application of SPF pigs
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At the same time, efforts have been made to promote the use of SPF pig serum, pig skin, cells and tissues as high-grade biomedical raw materials
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"Professional pig breed breeding research is a new field in pig breeding, and it is also an area where China can bend and overtake in pig breeding
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" Ge Liangpeng introduced that through gene editing and biological purification and other biotechnology, it is oriented on the basis of ordinary pigs.
Cultivate professional pig breeds (lines) for biomedical purposes, which can directly produce biomedical products, or provide high-quality production raw materials for the development of biomedical products, and serve as animal models for preclinical evaluation of drugs/medical devices, so that they can be cultivated Incubate related technology-based enterprises to provide technological support for the development of the industry from the low-end to the mid-to-high end
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Liu Zuohua, Dean of the Chongqing Academy of Animal Husbandry, said that as the first national innovation center in the agricultural field approved by the Ministry of Science and Technology, the National Pig Technology Innovation Center will use Rongchang pig and other high-quality local pig germplasm resources in China in terms of the innovative utilization of germplasm resources.
Cultivate new species that meet China's consumption needs and modern breeding, and breed them into experimental animals that can be used for medical research
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By 2025, the center plans to breed 3-5 high-quality, food-saving, and disease-resistant pig breeds, with production performance equivalent to foreign excellent breeds; research and development of antimicrobial peptides and other antibiotic substitutes for feed, and high-tech products for the pig industry such as African swine fever vaccine More than 50
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