Article 12 (BREEDING) - DEFINITION OF A THOROUGHBRED
Ref. Ares(2014)4185760 - 12/12/2014
Ref. Ares(2015)2015349 - 12/05/2015
A Thoroughbred is a horse which is recorded in the Thoroughbred Stud Book of the country of its
foaling, that Stud Book having been granted Approved status by the International Stud Book
Committee (Appendix 8) at the time of its official recording.
A: QUALIFICATION
For a horse to be eligible to be recorded in an approved Thoroughbred Stud Book all of the following
requirements must be satisfied:
1. STATUS OF SIRE AND DAM
1.1 The horse must be the product of a mating between a sire and a dam, both of which are
recorded in an approved Thoroughbred Stud Book or either or both must have been promoted
from a Non-Thoroughbred register under the terms set out in Article 13 paragraph 4.1.
2. 2: SERVICE TO PRODUCE AN ELIGIBLE FOAL
2.1 The Thoroughbred must be the result of a Stallion’s mating with a Mare which is the
physical mounting of a Mare by a Stallion with intromission of the penis and ejaculation of
semen into the reproductive tract. As an aid to the mating and if authorised by the Stud Book
Authority of a country certifying the Thoroughbred, a portion of the ejaculate produced by the
Stallion during such mating may immediately be placed in the reproductive tract of the Mare
being bred.
3. 3: GESTATION TO PRODUCE AN ELIGIBLE FOAL
3.1 A natural gestation must take place in, and delivery must be from, the body of the same
Mare in which the Foal was conceived. Any Foal resulting from or produced by the processes of
Artificial Insemination, Embryo Transfer or Transplant, Cloning or any other form of genetic
manipulation not herein specified, shall not be eligible for recording in a Thoroughbred Stud
Book approved by the International Stud Book Committee.
4. 4: RECORDING OF THE MATING AND RESULT
4.1 The details of the mating must be recorded by the Stallion owner or authorised agent on
an official form or electronic system provided or approved by the Stud Book Authority certifying
the Thoroughbred which should include:
4.1.1 name of the Stallion,
4.1.2 name of the Mare,
4.1.3. the first and last dates of mating to the Stallion and,
4.1.4 a statement signed by the Stallion owner or authorised agent that the mating was
natural and did not involve the processes of Artificial Insemination, Embryo Transfer or
Transplant, Cloning or any other form of genetic manipulation (see 3.1).
4.2 The details of the Foal at the time of foaling must be recorded by the Mare owner or
authorised agent on an official form or electronic system provided or approved by the Stud Book
Authority certifying the Thoroughbred which should include:
4.2.1 name of the Stallion,
4.2.2 name of the Mare,
4.2.3 exact date of foaling,
4.2.4 colour of the Foal,
4.2.5 gender of the Foal,
4.2.6 name of the Breeder of the Foal who is the Owner(s) of the Mare at the time of foaling,
4.2.7 country of foaling
4.2.8 a statement signed by the Mare owner or authorised agent that the Foal was not the
result of Artificial Insemination, Embryo Transfer or Transplant, Cloning or any other form of
genetic manipulation (see 3.1).
5. 5: IDENTIFICATION & DESCRIPTION
5.1 The description of the Foal must be recorded by a person authorised by the Stud Book
Authority on an official form or electronic system provided or approved by the Authority
certifying the Thoroughbred which should include:
5.1.1 name of the Stallion,
5.1.2 name of the Mare,
5.1.3 exact date of foaling,
5.1.4 colour of the Foal,
5.1.5 gender of the Foal,
5.1.6 name of the Breeder (see 4.2.6)
5.1.7 country of foaling
5.1.8 a detailed description of permanent and acquired identifying markings of the Foal
which should include all leg markings, face markings, hair whorls, scars, tattoos, brands and a
microchip number, if found, which should be substantiated by either colour photographs or
physical inspection.
6. 6: PARENTAGE VERIFICATION
6.1 The Stud Book Authority certifying the Thoroughbred must require further evidence of
parentage based upon typing of genetic factors present in blood, hair and/or other biological
samples and must certify:
6.1.1 that the genetic typing is only undertaken by a laboratory approved by that Stud Book
Authority for that purpose,
6.1.2 that the laboratory is an institutional member of ISAG and participates to the
satisfaction of the International Stud Book Committee in comparison tests,
6.1.3 that all genetic typing results and details are maintained in strict confidence and are
only disclosed to other Stud Book Authorities granted approved status by the International Stud
Book Committee and,
6.1.4 the Stud Book Authority conducts routine genetic typing and parentage verification
before registration of all horses applying for recording in their Stud Book.
B: DISQUALIFICATION
Modification of the heritable genome of a prospective or registered Thoroughbred, during its
conception, gestation or at any stage thereafter in its existence, will result in that horse forfeiting
its status as a Thoroughbred.
Agreed by :
ARGENTINA
CYPRUS
JAMAICA
PANAMA
TUNISIA
AUSTRALIA
CZECH
JAPAN
PARAGUAY
TURKEY
AUSTRIA
REPUBLIC
KAZAKHSTAN
PERU
SPAIN
AZERBAIJA
DENMARK
KENYA
PHILIPPINE
SWEDEN
N
DOMINICAN
KOREA
S
SWITZERLAN
BAHRAIN
REPUBLIC
LEBANON
POLAND
D
BARBADOS
ECUADOR
LITHUANIA
PORTUGAL
SYRIA
BELGIUM
FINLAND
LUXEMBOURG
PUERTO
THAILAND
BRAZIL
FRANCE
MALAYSIA
RICO
TRINIDAD &
BOSNIA
GERMANY
MEXICO
QATAR
TOBAGO
BULGARIA
GREAT
MOROCCO
ROMANIA
UNITED ARAB
CANADA
BRITAIN
NETHERLAND
RUSSIA
EMIRATES
CHILE
GREECE
S
SAUDI
UNITED
CHINA
HERZEGOVIN
NEW
ARABIA
STATES OF
COLOMBIA
A
ZEALAND
SERBIA
AMERICA
CROATIA
HUNGARY
NORWAY
SLOVAKIA
URUGUAY
INDIA
OMAN
SLOVENIA
UZBEKISTAN
IRELAND
SOUTH
VENEZUELA
ITALY
AFRICA
ZIMBABWE
*
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APPENDIX 8
LIST OF APPROVED STUD BOOKS (66)
ARGENTINA
MEXICO
AUSTRALIA
MOROCCO
AUSTRIA
NETHERLANDS
AZERBAIJAN
NEW-ZEALAND
BAHRAIN
NORWAY
BARBADOS
OMAN
BELGIUM & LUXEMBURG
PANAMA
BRAZIL
PARAGUAY
BULGARIA
PERU
CHILE
PHILIPPINES
CHINA
POLAND
COLOMBIA
PORTUGAL
CROATIA
QATAR
CYPRUS
ROMANIA
CZECH REPUBLIC
RUSSIA
DENMARK
SAUDI ARABIA
DOMINICAN REPUBLIC
SERBIA, BOSNIA & HERZEGOVINA
ECUADOR
SLOVAKIA
FINLAND
SLOVENIA
FRANCE
SOUTH AFRICA & ZIMBABWE
GERMANY
SPAIN
GREAT BRITAIN & IRELAND
SWEDEN
GREECE
SWITZERLAND
HUNGARY
SYRIA
INDIA
THAILAND
ITALY
TRINIDAD AND TOBAGO
JAMAICA
TUNISIA
JAPAN
TURKEY
KAZAKHSTAN
UNITED ARAB EMIRATES
KENYA
USA, CANADA & PUERTO RICO
KOREA
URUGUAY
LEBANON
UZBEKISTAN
MALAYSIA
VENEZUELA
LIST OF APPROVED STUD BOOKS NO LONGER OPERATING (3)
COSTA RICA
LITUANIA
GUATEMALA
*