Mares Bred in Louisiana Drops 12.5% in 2019

The Jockey Club today released Report of Mares Bred (RMB) statistics for the 2019 breeding season. Based on RMBs received through October 16, 2019, The Jockey Club reports that 1,134 stallions covered 29,218 mares in North America during 2019.

The Jockey Club estimates an additional 2,500 to 3,500 mares will be reported as bred during the 2019 breeding season.

The number of stallions declined 6.6% from the 1,214 reported at this time in 2018, and the number of mares bred decreased 3.5% from the 30,274 reported last year. Consistent with prior years’ reporting of stallions by book size, the number of stallions covering 125 or more mares increased from 62 in 2018 to 65 in 2019.

Further book size analysis shows a 6.7% increase in the number of mares bred to stallions with a book size of 125 or more in 2019 when compared to 2018 as reported at this time last year; a 9.1% decrease in mares bred to stallions with a book size between 100 and 124; a 9.1% decrease in mares bred to stallions with a book size between 75 and 99; a 16.7% decrease in mares bred to stallions with a book size between 50 and 74; a 12.4% decrease in mares bred to stallions with a book size between 25 and 49; and a 1.0% increase in mares bred to stallions with a book size fewer than 25.

The percentage of broodmares covered by stallions serving 125 or more mares increased from 31.9% in 2018 to 35.3% in 2019. From 2015-2017, this percentage had remained fairly constant at approximately 29%, up from 20.5% in 2014.

The proportion of stallions with book sizes of 125 or more mares grew from 5.1% in 2018 to 5.7% in 2019. It had previously grown from 3.1% in 2014 to 4.5% from 2015-2017.

2014 2015 2016 2017 2018 2019
% stallions with book size >125 3.1% 4.5% 4.5% 4.5% 5.1% 5.7%
% mares covered by stallions with book size >125 20.5% 29.1% 28.7% 29.4% 31.9% 35.3%

Note: Statistics summarized as of October 16 of the breeding seasons indicated in the columns above; as reports of mares bred continue to be received, final statistics are subject to change.

RMB statistics for all reported stallions in 2019 are available through the Fact Book section of The Jockey Club’s website at jockeyclub.com.

The stallions Justify and Mendelssohn led all stallions with 252 mares bred by each in 2019. Rounding out the top five by number of RMBs were Into Mischief, 241; Uncle Mo, 241; and Goldencents, 239.

Kentucky traditionally leads North America in Thoroughbred breeding activity. During 2019, Kentucky’s 220 reported stallions covered 17,123 mares, or 58.6% of all of the mares reported bred in North America. The number of mares bred to Kentucky stallions decreased 1.1% percent compared with the 17,322 reported at this time last year.

Of the top 10 states and provinces by number of mares reported bred in 2019, Pennsylvania and Oklahoma stallions covered more mares in 2019 than in 2018, as reported at this time last year. The following table shows the top 10 states and provinces ranked by number of mares reported bred in 2019:

State/Province 2018 Stallions 2019 Stallions Pct. Change 2018 Mares Bred 2019 Mares Bred Pct. Change
Kentucky 228 220 -3.5% 17,322 17,123 -1.1%
California 137 124 -9.5% 2,482 2,018 -18.7%
Florida 78 81 3.8% 1,917 1,863 -2.8%
New York 48 43 -10.4% 1,115 1,058 -5.1%
Louisiana 80 79 -1.3% 1,125 984 -12.5%
Maryland 30 31 3.3% 867 780 -10.0%
Pennsylvania 32 28 -12.5% 610 686 12.5%
Ontario 37 29 -21.6% 620 538 -13.2%
Oklahoma 43 38 -11.6% 470 479 1.9%
New Mexico 62 51 -17.7% 467 437 -6.4%

Note: Each incident in which a mare was bred to more than one stallion and appeared on multiple RMBs is counted separately. As such, mares bred totals listed in the table above may differ slightly from counts of distinct mares bred.

In addition, Report of Mares Bred information on stallions that bred mares in North America is available through report 36P or a subscription service at equineline.com/ReportOfMaresBred.

The Jockey Club, founded in 1894 and dedicated to the improvement of Thoroughbred breeding and racing, is the breed registry for North American Thoroughbreds. In fulfillment of its mission, The Jockey Club, directly or through subsidiaries, provides support and leadership on a wide range of important industry initiatives, and it serves the information and technology needs of owners, breeders, media, fans and farms. It founded America’s Best Racing (americasbestracing.net), the broad-based fan development initiative for Thoroughbred racing, and in partnership with the Thoroughbred Owners and Breeders Association, operates OwnerView (ownerview.com), the ownership resource. Additional information is available at jockeyclub.com.

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The Jockey Club Releases 2018 Breeding Statistics

The Jockey Club today reported that 1,630 stallions covered 32,508 mares in North America during 2018, according to statistics compiled through Sept. 26, 2019. These breedings have resulted in 20,363 live foals of 2019 being reported to The Jockey Club on Live Foal Reports.

The Jockey Club estimates that the number of live foals reported so far is approximately 90 percent complete. The reporting of live foals of 2019 is down 3.6 percent from last year at this time when The Jockey Club had received reports for 21,130 live foals of 2018.

In addition to the 20,363 live foals of 2019 reported through Sept. 26, The Jockey Club also received 2,405 No Foal Reports for the 2019 foaling season. Ultimately, the 2019 registered foal crop is projected to reach 20,800.

The number of stallions declined 8.3 percent from the 1,778 reported for 2017 at this time last year, while the number of mares bred declined 5.2 percent from the 34,288 reported for 2017.

The 2018 breeding statistics are available alphabetically by stallion name through the Resources – Fact Book link on The Jockey Club homepage at jockeyclub.com.

Kentucky annually leads all states and provinces in terms of Thoroughbred breeding activity. Kentucky-based stallions accounted for 53.7 percent of the mares reported bred in North America in 2018 and 59.9 percent of the live foals reported for 2019.

The 17,446 mares reported bred to 241 Kentucky stallions in 2018 have produced 12,200 live foals, a 1.4 percent decrease on the 12,370 Kentucky-sired live foals of 2018 reported at this time last year. The number of mares reported bred to Kentucky stallions in 2018 increased 0.3 percent compared to the 17,401 reported for 2017 at this time last year.

Among the 10 states and provinces with the most mares covered in 2018, three produced more live foals in 2019 than in 2018 as reported at this time last year: California, Louisiana, and Maryland. The following table shows the top 10 states and provinces ranked by number of state/province-sired live foals of 2019 reported through Sept. 26, 2019.

2018 Mares Bred 2018 Live Foals 2019 Live Foals Percent Change in Live Foals
Kentucky 17,446 12,370 12,200 -1.4%
California 2,546 1,577 1,612 2.2%
Florida 2,057 1,217 1,164 -4.4%
Louisiana 1,207 713 728 2.1%
New York 1,122 777 703 -9.5%
Maryland 877 483 537 11.2%
Ontario 730 495 377 -23.8%
Pennsylvania 680 373 339 -9.1%
New Mexico 678 372 307 -17.5%
Oklahoma 646 329 289 -12.2%

The statistics include 303 progeny of stallions standing in North America but foaled abroad, as reported by foreign stud book authorities at the time of publication.

Country Live Foals Country Live Foals
Saudi Arabia 107 Russia 9
Republic of Korea 57 India 8
Ireland 27 Australia 6
Japan 22 Argentina 6
Great Britain 15 Panama 5
Philippines 15 Barbados 4
France 12 Peru 1
Mexico 9

The report also includes 86 mares bred to 14 stallions in North America on Southern Hemisphere time; the majority of these mares have not foaled.

As customary, a report listing the number of mares bred in 2019 will be released later this month.

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Study Connects Rise in Inbreeding to Larger Books

An analysis of inbreeding over 45 years shows the biggest increase during 1996-2006.

 

A 2011 study showing an increase in inbreeding in the Thoroughbred during a 45-year period from 1961-2006 also concluded the majority of the increase occurred during the last 10 years of the study period—a time coinciding with a sharp rise in the number of stallions being bred to books of 100 mares or more. Dr. Matthew Binns was the lead author of the study “Inbreeding in the Thoroughbred horse” that appeared in a June 2011 edition of Animal Genetics. The genotyping of 467 Thoroughbreds born between 1961-2006 showed an increase in the average inbreeding coefficient. More significantly, the study notes, the majority of the increase occurred during 1996-06, when the number of North American stallions breeding 100 or more mares in a given season rose from 14 to 128. In 1996, 14 North American stallions covered 100 mares or more. Only five years earlier only one stallion—Alydar—had bred a book of mares exceeding 100.

“My conclusion was that the data was showing the start of a trend that could become worrisome and needed monitoring,” Binns told BloodHorse. “It was starting to show this increase as a result of the big books.”

 

Read BloodHorse Article

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The Jockey Club Considers Rule Regarding Breeding Stallions

The Jockey Club board of stewards, concerned with the narrowing of the diversity of the Thoroughbred gene pool, today announced its consideration of a rule to limit the annual breeding of individual stallions starting with the 2021 breeding season.

The Jockey Club, established in 1894, is the keeper of the American Stud Book and maintains the Principal Rules and Requirements of the American Studbook in order to ensure the welfare of the Thoroughbred breed.

As has been widely reported, the size of the North American foal crop has diminished significantly, from 37,499 in 2007 to the 20,500 estimated for 2020.

In 2007, 37 stallions reported in excess of 140 mares bred each from a total of 3,865 stallions. By 2010, that number had declined to 24. Since then, the number has nearly doubled to 43 stallions reporting 140 or more mares bred from a population of stallions that now stands at less than one-half that of 2007.

On the mare side, in 2007, 5,894 mares (9.5% of the total) were bred by stallions that covered more than 140 mares. By 2019, 7,415 mares (27% of the total) were covered by stallions with books of more than 140, a threefold increase.

The combination of these changes has resulted in a substantial increase in the percentage of foals produced by a discreet segment of stallions — signaling a worrisome concentration of the gene pool.

The board of stewards of The Jockey Club is considering a cap of 140 mares bred per individual stallion per calendar year in North America, phased-in, as follows:

  • Stallions entering stud service for the first time in 2020 would be exempt from the 140 limit through the 2023 season
  • Stallions that entered stud service in 2019 would be exempt through the 2022 season
  • Stallions that entered stud service in 2018 would be exempt through the 2021 season
  • Stallions that entered service in 2017 or prior would be subject to the 140 cap as of January 1, 2021

The stewards will continue to study the decreasing diversity of the Thoroughbred gene pool and its cause and potential effects over the course of time. As more data and analyses become available, the stewards may revise The Jockey Club’s approach to protecting the breed’s health and welfare.

The Jockey Club solicits and welcomes comments on the proposed rule from breeders, owners, and others with interests in the Thoroughbred breed and the industry. Contact The Jockey Club at jockeyclub.com.

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2019 Jockey Club Fact Book Available

As of Thursday, February 14, 2019, The Jockey Club’s 2019 edition of the Fact Book is available in the Resources section of its website at jockeyclub.com.

The online Fact Book is a statistical and informational guide to Thoroughbred breeding, racing and auction sales in North America. It also features a directory of Canadian, international, national, and state organizations.

Links to the Breeding Statistics report that is released by The Jockey Club each September and the Report of Mares Bred information that is published by The Jockey Club each October can be found in the Breeding section of the Fact Book. Starting this year, the Fact Book will be updated quarterly, and additional statistics will be made available in the coming months to provide additional insight into overall trends in Thoroughbred breeding, sales, and racing.

The 2019 editions of State Fact Books, which feature detailed breeding, racing and auction sales information specific to numerous states, Canadian provinces, and Puerto Rico, are also available on The Jockey Club website. The State Fact Books are updated monthly.

The Jockey Club, founded in 1894 and dedicated to the improvement of Thoroughbred breeding and racing, is the breed registry for North American Thoroughbreds. In fulfillment of its mission, The Jockey Club, directly or through subsidiaries, provides support and leadership on a wide range of important industry initiatives, and it serves the information and technology needs of owners, breeders, media, fans and farms. It is the sole funding source for America’s Best Racing, the broad-based fan development initiative for Thoroughbred racing. You can follow America’s Best Racing at americasbestracing.net. Additional information is available at jockeyclub.com.

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The Jockey Club Releases 2018 Report of Mares Bred Statistics

The Jockey Club today released Report of Mares Bred (RMB) statistics for the 2018 breeding season. Based on RMBs received through October 16, 2018, The Jockey Club reports that 1,214 stallions covered 30,274 mares in North America during 2018.

The Jockey Club estimates an additional 3,000 to 4,000 mares will be reported as bred during the 2018 breeding season.

The number of stallions declined 9.5% from the 1,342 reported at this time in 2017, and the number of mares bred decreased 5.0% from the 31,863 reported last year. The number of stallions covering 125 or more mares increased from 60 in 2017 to 62 in 2018.

Further book size analysis shows a 3.0% increase in the number of mares bred to stallions with a book size of 125 or more in 2018 when compared to 2017 as reported at this time last year; a 1.4% decrease in mares bred to stallions with a book size between 100 and 124; a 7.0% increase in mares bred to stallions with a book size between 75 and 99; a 6.7% decrease in mares bred to stallions with a book size between 50 and 74; a 9.6% decrease in mares bred to stallions with a book size between 25 and 49; and a 16.7% decrease in mares bred to stallions with a book size fewer than 25.

The percentage of broodmares covered by large book size (125 or more) stallions increased from 29.4% in 2017 to 31.9% in 2018. From 2015-2017, this percentage had remained constant at approximately 29%, up from 20.5% in 2014.

The proportion of stallions with book sizes of 125 or more mares grew from 3.1% in 2014 to 4.5% from 2015-2017. In 2018, this proportion increased to 5.1%.

2014 2015 2016 2017 2018
% stallions with book size >125 3.1% 4.5% 4.5% 4.5% 5.1%
% mares covered by stallions with book size >125 20.5% 29.1% 28.7% 29.4% 31.9%

Note: Statistics summarized as of October 16 of the breeding seasons indicated in the columns above; as reports of mares bred continue to be received, final statistics are subject to change.

RMB statistics for all reported stallions in 2018 are available through the Fact Book section of The Jockey Club’s website at jockeyclub.com.

The stallion Into Mischief led all stallions with 245 mares bred in 2018. Rounding out the top five by number of RMBs were Cupid, 223; Klimt, 222; Practical Joke, 220; and, Violence, 214.

Kentucky traditionally leads North America in Thoroughbred breeding activity. During 2018, Kentucky’s 228 reported stallions covered 17,322 mares, or 57.2% of all of the mares reported bred in North America. The number of mares bred to Kentucky stallions increased 0.3% percent compared with the 17,275 reported at this time last year.

Of the top 10 states and provinces by number of mares reported bred in 2018, Kentucky, California, Maryland, and Pennsylvania stallions covered more mares in 2018 than in 2017, as reported at this time last year. The following table shows the top 10 states and provinces ranked by number of mares reported bred in 2018:

State/Province 2017 Stallions 2018 Stallions Pct. Change 2017 Mares Bred 2018 Mares Bred Pct. Change
Kentucky 229 228 -0.4% 17,275 17,322 0.3%
California 137 137 0.0% 2,356 2,482 5.3%
Florida 92 78 -15.2% 2,073 1,917 -7.5%
Louisiana 93 80 -14.0% 1,235 1,125 -8.9%
New York 58 48 -17.2% 1,326 1,115 -15.9%
Maryland 30 30 0.0% 768 867 12.9%
Ontario 38 37 -2.6% 810 620 -23.5%
Pennsylvania 36 32 -11.1% 563 610 8.3%
Indiana 59 57 -3.4% 554 506 -8.7%
Oklahoma 54 43 -20.4% 537 470 -12.5%

Note: Each incident in which a mare was bred to more than one stallion and appeared on multiple RMBs is counted separately. As such, mares bred totals listed in the table above may differ slightly from counts of distinct mares bred.

In addition, Report of Mares Bred information on stallions that bred mares in North America is available through report 36P or a subscription service at equineline.com/ReportOfMaresBred.

The Jockey Club, founded in 1894 and dedicated to the improvement of Thoroughbred breeding and racing, is the breed registry for North American Thoroughbreds. In fulfillment of its mission, The Jockey Club, directly or through subsidiaries, provides support and leadership on a wide range of important industry initiatives, and it serves the information and technology needs of owners, breeders, media, fans and farms. It is the sole funding source for America’s Best Racing, the broad-based fan development initiative for Thoroughbred racing. You can follow America’s Best Racing at americasbestracing.net. Additional information is available at jockeyclub.com.

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The Jockey Club Releases 2017 Breeding Statistics

Monday, October 01, 2018

The Jockey Club today reported that 1,778 stallions covered 34,288 mares in North America during 2017, according to statistics compiled through Sept. 26, 2018. These breedings have resulted in 21,130 live foals of 2018 being reported to The Jockey Club on Live Foal Reports.

The Jockey Club estimates that the number of live foals reported so far is approximately 90 percent complete. The reporting of live foals of 2018 is down 2.3 percent from last year at this time when The Jockey Club had received reports for 21,624 live foals of 2017.

In addition to the 21,130 live foals of 2018 reported through Sept. 26, The Jockey Club also received 2,516 No Foal Reports for the 2018 foaling season. Ultimately, the 2018 registered foal crop is projected to reach 21,500.

The number of stallions declined 4.6 percent from the 1,863 reported for 2016 at this time last year, while the number of mares bred declined 4.9 percent from the 36,045 reported for 2016.

The 2017 breeding statistics are available alphabetically by stallion name through the Resources – Fact Book link on The Jockey Club homepage at jockeyclub.com.

“It is important to note that the live foals reported in The Jockey Club breeding statistics are by conception area and do not represent the state in which a foal was born,” said Matt Iuliano, executive vice president and executive director, The Jockey Club. “Breeding statistics also are not a representation of a stallion’s fertility record.”

Kentucky annually leads all states and provinces in terms of Thoroughbred breeding activity. Kentucky-based stallions accounted for 50.7 percent of the mares reported bred in North America in 2017 and 58.5 percent of the live foals reported for 2018.

The 17,401 mares reported bred to 235 Kentucky stallions in 2017 have produced 12,370 live foals, a 0.2 percent decrease on the 12,396 Kentucky-sired live foals of 2017 reported at this time last year. The number of mares reported bred to Kentucky stallions in 2017 decreased 2.9 percent compared to the 17,912 reported for 2016 at this time last year.

Among the 10 states and provinces with the most mares covered in 2017, only three produced more live foals in 2018 than in 2017 as reported at this time last year: Ontario, New Mexico, and Pennsylvania. The following table shows the 10 states and provinces, ranked by number of state/province-sired live foals of 2018 reported through Sept. 26, 2018.

2017 Mares Bred 2017 Live Foals 2018 Live Foals Percent Change in Live Foals
Kentucky 17,401 12,396 12,370 -0.2%
California 2,573 1,726 1,577 -8.6%
Florida 2,286 1,514 1,217 -19.6%
New York 1,344 912 777 -14.8%
Louisiana 1,336 799 713 -10.8%
Ontario 908 397 495 24.7%
Maryland 783 500 483 -3.4%
New Mexico 794 370 372 0.5%
Pennsylvania 673 289 373 29.1%
Oklahoma 773 341 329 -3.5%

The statistics include 334 progeny of stallions standing in North America but foaled abroad, as reported by foreign stud book authorities at the time of publication.

Country Live Foals Country Live Foals
Republic of Korea 117 India 4
Saudi Arabia 72 Peru 3
Ireland 33 Russia 3
Great Britain 25 Dominican Republic 2
Japan 24 Germany 2
Philippines 20 Barbados 1
Australia 12 Brazil 1
Argentina 7 Pakistan 1
Mexico 6 Venezuela 1

The report also includes 90 mares bred to 27 stallions in North America on Southern Hemisphere time; the majority of these mares have not foaled.

As customary, a report listing the number of mares bred in 2018 will be released later this month.

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The Jockey Club Releases 2017 Report of Mares Bred Statistics

The Jockey Club has released Report of Mares Bred (RMB) statistics for the 2017 breeding season. Based on RMBs received through October 17, 2017, The Jockey Club reports that 1,342 stallions covered 31,863 mares in North America during 2017.

Based upon historical reporting trends, The Jockey Club estimates an additional 2,000 to 3,000 mares will be reported as bred during the 2017 breeding season.

The number of stallions declined 5.7% from the 1,423 reported at this time in 2016, and the number of mares bred decreased 5.6% from the 33,746 reported last year. The number of stallions covering 125 or more mares decreased from 64 in 2016 to 60 in 2017.

Further book size analysis shows a 3.3% decrease in the number of mares bred to stallions with a book size of 125 or more in 2017 when compared to 2016 as reported at this time last year; a 13.0% decrease in mares bred to stallions with a book size between 100 and 124; a 27.4% decrease in mares bred to stallions with a book size between 75 and 99; a 11.5% decrease in mares bred to stallions with a book size between 50 and 74; a 14.9% increase in mares bred to stallions with a book size between 25 and 49; and a 4.7% decrease in mares bred to stallions with a book size fewer than 25.

When comparing statistics based on reports received through the same day (October 17) from previous breeding seasons, the percentage of broodmares covered by large book size (125 or more) stallions increased from 19.3% in 2013 to approximately 29% in 2015 where it has remained over the past three seasons.

The proportion of stallions with book sizes of 125 or more mares grew from 2.6% in 2013 to 4.5% in 2015. It has remained constant at that rate over the past three breeding seasons.

 

2013

2014

2015

2016

2017

% stallions with book size >125

2.6%

3.1%

4.5%

4.5%

4.5%

% mares covered by stallions with book size >125

19.3%

20.5%

29.1%

28.7%

29.4%

Note: Statistics summarized as of October 17 of the breeding seasons indicated in the columns above; as reports of mares bred continue to be received, final statistics are subject to change.

RMB statistics for all reported stallions in 2017 are available through the Fact Book section of The Jockey Club’s website at jockeyclub.com.

The stallion Into Mischief led all stallions with 235 mares bred in 2017. Rounding out the top five by number of RMBs were Dialed In, 231; American Pharoah, 214; Uncle Mo, 204; and, Bodemeister, 192.

Kentucky traditionally leads North America in Thoroughbred breeding activity. During 2017, Kentucky’s 229 reported stallions covered 17,275 mares, or 54.2% of all of the mares reported bred in North America. The number of mares bred to Kentucky stallions decreased 2.7% percent compared with the 17,750 reported at this time last year.

Of the top 10 states and provinces by number of mares reported bred in 2017, Ontario, Pennsylvania and Indiana stallions covered more mares in 2017 than in 2016, as reported at this time last year. The following table shows the top 10 states and provinces ranked by number of mares reported bred in 2017:

State/Province

2016 Stallions

2017 Stallions

Pct. Change

2016 Mares Bred

2017 Mares Bred

Pct. Change

Kentucky

227

229

.88%

17,750

17,275

-2.68%

California

156

137

-12.18%

2,543

2,356

-7.35%

Florida

107

92

-14.02%

2,757

2,073

-24.81%

New York

55

58

5.45%

1,510

1,326

-12.19%

Louisiana

102

93

-8.82%

1,332

1,235

-7.28%

Ontario

38

38

0.00%

761

810

6.44%

Maryland

32

30

-6.25%

913

768

-15.88%

New Mexico

72

58

-19.44%

692

605

-12.57%

Pennsylvania

41

36

-12.20%

489

563

15.13%

Indiana

48

59

22.92%

386

554

43.52%

Note: Each incident in which a mare was bred to more than one stallion and appeared on multiple RMBs is counted separately. As such, mares bred totals listed in the table above may differ slightly from counts of distinct mares bred.

In addition, Report of Mares Bred information on stallions that bred mares in North America is available through report 36P or a subscription service at equineline.com/ReportOfMaresBred.

The Jockey Club, founded in 1894 and dedicated to the improvement of Thoroughbred breeding and racing, is the breed registry for North American Thoroughbreds. In fulfillment of its mission, The Jockey Club, directly or through subsidiaries, provides support and leadership on a wide range of important industry initiatives, and it serves the information and technology needs of owners, breeders, media, fans and farms. It is the sole funding source for America’s Best Racing, the broad-based fan development initiative for Thoroughbred racing. You can follow America’s Best Racing at americasbestracing.net. Additional information is available at jockeyclub.com.

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The Jockey Club Releases 2016 Breeding Statistics

The Jockey Club Releases 2016 Breeding Statistics
The Jockey Club reported, September 21, that 1,863 stallions covered 36,045 mares in North America during 2016, according to statistics compiled through Sept. 13, 2017. These breedings have resulted in 21,624 live foals of 2017 being reported to The Jockey Club on Live Foal Reports.

The Jockey Club estimates that the number of live foals reported so far is approximately 90 percent complete. The reporting of live foals of 2017 is down 1.7 percent from last year at this time when The Jockey Club had received reports for 21,991 live foals of 2016.

In addition to the 21,624 live foals of 2017 reported through Sept. 13, The Jockey Club also received 2,467 No Foal Reports for the 2017 foaling season. Ultimately, the 2017 registered foal crop is projected to reach 22,500.

The number of stallions declined 3.1 percent from the 1,923 reported for 2015 at this time last year, while the number of mares bred declined 2.5 percent from the 36,964 reported for 2015.

The 2016 breeding statistics are available alphabetically by stallion name through the Resources – Fact Book link on The Jockey Club homepage at jockeyclub.com.

“It is important to note that the live foals reported in The Jockey Club breeding statistics are by conception area and do not represent the state in which a foal was born,” said Matt Iuliano, executive vice president and executive director, The Jockey Club. “Breeding statistics also are not a representation of a stallion’s fertility record.”

Kentucky annually leads all states and provinces in terms of Thoroughbred breeding activity. Kentucky-based stallions accounted for 49.7 percent of the mares reported bred in North America in 2016 and 57.3 percent of the live foals reported for 2017.

The 17,912 mares reported bred to 245 Kentucky stallions in 2016 have produced 12,396 live foals, a 1.7 percent increase on the 12,184 Kentucky-sired live foals of 2016 reported at this time last year. The number of mares reported bred to Kentucky stallions in 2016 increased 1.8 percent compared to the 17,598 reported for 2015 at this time last year.

Among the 10 states and provinces with the most mares covered in 2016, only three produced more live foals in 2017 than in 2016 as reported at this time last year: Kentucky, California, and Maryland. The following table shows the 10 states and provinces, ranked by number of state/province-sired live foals of 2017 reported through Sept. 13, 2017.

 

2016
Mares Bred

2016
Live Foals

2017
Live Foals

Percent Change
in Live Foals

Kentucky

17,912

12,184

12,396

1.7%

California

2,631

1,720

1,726

0.3%

Florida

2,841

1,577

1,514

-4.0%

New York

1,526

940

912

-3.0%

Louisiana

1,507

893

799

-10.5%

Maryland

929

411

500

21.7%

Ontario

865

447

397

-11.2%

New Mexico

869

452

370

-18.1%

Oklahoma

826

361

341

-5.5%

Pennsylvania

547

349

289

-17.2%

 

The statistics include 394 progeny of stallions standing in North America but foaled abroad, as reported by foreign stud book authorities at the time of publication.

 

Country

Live Foals

Country

Live Foals

Saudi Arabia

115

India

7

Republic of Korea

110

Argentina

6

Great Britain

35

Russia

4

Japan

32

Venezuela

2

Ireland

31

Australia

1

Philippines

27

Dominican Republic

1

Mexico

12

Ecuador

1

Chile

9

France

1

 

The report also includes 92 mares bred to 25 stallions in North America on Southern Hemisphere time; the majority of these mares have not foaled.

As in years past, a report of mares bred will be released in October.

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