Current Status and Plan for Swine Improvement in Korea

Current Status and Plan for Swine Improvement in

Korea

Sunchon National UniversityDept. of Animal Science & Technology

Kangseok Seo

The Seventh Meeting of Chain Swine AI in Nanchang

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>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Current Status and Plan for Swine Improvement in Korea

Swine Industry in Korea

Swine industry constitutes 42% (US $48,292,211) in Korea livestock

industry (US$1.14B)

Commonly raised breeds are Landrace, Large White and Duroc

Recently, there is an increased interest in Berkshire

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Swine Industry Status

127 GGP farms produce 200,000 animals (F1)

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* Ratio of herds per breed : 65% (Y for sows), 25%(L for boar), and 10% (D and other

breeds)

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Status of breeding pig industry in Korea 90% of total demands are serviced by 52 swine AI center

Demand of semen : about 1,980 thousand

Supplements of semen : about 1,792 thousand

Average No of boar for AI center is 60 heads

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GYEONGGI-DO

GANGWON-

DO

CHUNGCHEON

GBUK-DO

CHUNGCHEON

GNAM-DO

JEOLLABUK-DO

JEOLLANAM-DO

GYEONGSANG

BUK-DO

GYEONGSANG

NAM-DOJEJU-DO total

No 8 2 4 16 6 4 5 5 2 52

Heads 480 131 373 1258 353 171 268 191 109 3,334


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Changes of meat consumption per year

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Meat Consumption

Beef Fork Chicken

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Swine Pyramidal Structure

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Republic of Korea Denmark(2006) France(Network)

17,000 13,000 7,440

48,000 59,000 31,000

910,000 1,150,000Slaughter/yr

14 MillionSlaughter/yr

25 Million

GGP

GP

PS


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Swine Improvement System

Performance Testing

On Farm Testing : 60,000 heads/year

Station Testing : 4,800 heads/ year

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Plan mating & candidate produce

Performance testing

Genetic evaluation

Selection Semen and breeding pig distribution

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Why network ?

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0 200-250 1,000 2,000 3,000

No of gilts

Breeding Efficiency

60%

75%

100%


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Swine Improvement Network

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Diagram for swine improvement system

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participated breeding

farm

self selection(top 10%)

farm testing

genetic evaluation

meat quality testing

culling

Nucleus AI center

use a AI over 10%

selection for nucleus boar(top

5%)

planned mating

quarantine area

disease inspection

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GYEONGGI-DO

Swine improvement network

Participated breeding farm and size

Paternal : 7 breeding pig farms

→ Doric Boars : 730 heads

Maternal : 7 breeding pig farms

→Large White boars : 2,470 heads

→Landrace Boars : 440 heads

Nucleus AI center : 2 site

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GANGWON-DO

CHUNGCHEONGNAM-DO

CHUNGCHEONGBUK-DO

GYEONGSANGNAM-DO

GYEONGSANGBUK-DO

JEOLLANAM-DO

JEOLLABUK-DO

NongHyu

p

GuSiWorl

d

Farmsc

o

D.N.D

WonSa

n

* NIAS

* NIAS : National Institute of Animal Science

SinCheongBo

ngKumBo

SamSun

gSunJin

JungWo

nHanGug

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Swine improvement network

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>>>>>>>>>>>>> Genetic connectiveness for each breeding farm

genetic connectiveness for Duroc breed : 65% ~ 92%

→ It can be possible for genetic evaluation

(A)

(B)

(C)

(D)

(E)

(F)

(G)

(H)

A B C D E F G H

0 → 0.12

Farm KumBo WonSan FarmscoNongHy

up*NIAS

SamSung 73 92 75 76 74

KumBo 　 74 66 68 67

WonSan 　　 69 70 68

Farmsco 　　　 72 65

NongHyup 　　　　 71

* NIAS : National Institute of Animal Science

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Comparison of testing performance : age at 90kg

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Comparison of testing performance : ADG

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Phenotypic and genetic trend of age at 90kg

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Limitation of classical animal breeding Increment of genetic uniformity

Rapid increment of inbreeding coefficient

Productivity weakening

High cost system

Progeny test

Black Box approach

Poor information of gene function

Dependency of data

Pedigree information and test data

Impossible comparison between breeds

compounding between Breed effects and breeding value

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Opening the Genetics Black Box

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Old

Infinitesimal Model

New

Major gene or Candidate gene Model

More recently

Genomic selection

How many genes?

Sizes of gene effect?

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Molecular Genetic Approaches

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Genomic Selection Approach

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SNPNGS

Proteomics

Domesticated gene

Gene detection

and verification

genomic

analysis

mi RNA

Improvement of meat quality by selecting superior breeding pigs

Ep

igen

eti

c

an

aly

sis

Gen

e d

ete

cti

on

an

d v

eri

ficati

on

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Linkage MapsGenetic evaluation

Performance test

Hyper-polymorphic DNA marker Hyper-polymorphic DNA marker

Parentage verification

BetterBreedingProgram

BetterBreedingProgram QTL Identification

MAS

SNP’s, CNVSNP’s, CNVGene chips

Gene Identification

Genetic disorder

Diseaseresistance

Productivity ProductQuality

reproduction

transgenesis

Environmentalcontrol

Phenotypic data(D/B)Phenotypic data(D/B)

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Current Status and Plan for Swine Improvement in

Korea

Sunchon National UniversityDept. of Animal Science & Technology

Kangseok Seo>>>>>>>>>>>>>>>

The Seventh Meeting of Chain Swine AI in Nanchang

谢谢農夫餓死㶩厥種子

Documents

Current Status and Plan for Swine Improvement in Korea