The number of stallions declined 1.8% from the 1,449 reported at this time in 2015, and the number of mares bred decreased 2.5% from the 34,627 reported last year.
The Jockey Club's Report of Mares Bred for 2015 shows a less than 1% rise in the number of mares covered this year over 2014, but the number of active stallions decreased 6.3%.
Led by increases in five major states, the number of mares bred in North America this year increased 1.1% while the number of stallions declined 8.9%, according to the Report of Mares Bred released by The Jockey Club Oct. 21.
The 2013 Report of Thoroughbred Mares Bred from The Blood-Horse is based on the Report of Mares Bred from The Jockey Club. The chart lists alphabetically all the stallions that bred at least one mare. Download Now
The Jockey Club's 2013 Report of Mares Bred shows a decline of 3.4% in the number of mares covered by stallions in North America compared to 2012's figures. To date, 34,174 mares have been covered by 1,861 stallions.
According to the Report of Mares Bred released Oct. 19 by the Jockey Club, breeding activity declined 3% in 2012 as 35,591 mares were covered.
The Jockey Club is reminding stallion managers to submit Reports of Mares Bred for the 2012 breeding season by Aug. 1.
Statistics from The Jockey Club for the 2011 North American breeding season show the number of stallions that serviced mares fell 11.5% and the number of mares bred declined 10% when compared to the same period a year ago.
The Jockey Club has issued a reminder to stallion owners to submit their Reports of Mares Bred (RMBs) for the 2011 breeding season by Aug. 1.
Statistics from The Jockey Club for the 2010 breeding season show that the number of stallions that serviced mares fell 9.3% and the number of mares bred fell 10.5% when compared to the same period a year ago.
The "Report of Mares Bred" released by The Jockey Club Oct. 22 shows that Pennsylvania breeding is on the rise while the industry is in decline in every other major breeding state.
The Jockey Club released the Report of Mares Bred (RMB) statistics Oct. 16 for 2008 that show a continued decline in North American Thoroughbred breeding activity.
The Jockey Club found both an increase in breeding activity in Kentucky and a slight decline in the number of North American stallions covering at least 100 mares.
The Jockey Club encourages stallion owners and managers who have not already done so to submit their reports of mares bred as soon as possible to avoid delays in receiving their service certificates for the 2007 breeding season.
The Jockey Club reported Oct. 19 that 3,053 stallions covered 59,434 mares in North America during 2006, according to "Reports of Mares Bred" received through Oct. 12, 2006. Unlike in 2005 when four stallions covered more than 200 mares each, Roman Ruler led all stallions in 2006 with 197 mares bred, two more than El Corredor. Giant's Causeway and Stormy Atlantic each covered 191 mares.
The Jockey Club released their Report of Mares Bred in 2005 Thursday morning and report that 58,739 mares were covered by 3,097 stallions this year. The released data is reports that have been received through Oct. 13.
The Jockey Club reported Thursday that 3,239 stallions covered 59,342 mares in North America during 2004, according to Reports of Mares Bred (RMB's) received by the Jockey Club through Oct. 14.
The Jockey Club released the 2003 Report of Mares Bred on Thursday. The report, while not complete, shows less than a 1% decline in both the number of covering stallions and the number of mares bred over last year's figures.
The Jockey Club reported on Oct. 17 that 3,364 stallions covered 59,090 mares in North America during 2002, according to Reports of Mares Bred (RMB's) received by The Jockey Club as of Oct. 10.
The number of stallions and mares bred in 2001 both decreased, and Thunder Gulch became the first Thoroughbred stallion in North America to cover over 200 mares in one northern hemisphere season. Those were some of the numbers contained in the Report of Mares Bred, which was released Thursday by The Jockey Club.
For the second straight year, Ashford Stud stands the top three stud horses among North American-based stallions bred to 100 or more mares in 1999. Ashford's Grand Slam was bred to 166 mares, Tale of the Cat followed by covering 147, and Southern Halo was mated to 141.
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