Navigation Links
Horse blind date could lead to loss of foal
Date:3/29/2011

Foetal loss is a common phenomenon in domestic horses after away-mating, according to Luděk Barto and colleagues, from the Institute of Animal Science in the Czech Republic. When mares return home after mating with a foreign stallion, they either engage in promiscuous mating with the home males to confuse paternity, or, failing that, the mares abort the foal to avoid the likely future infanticide by the dominant home male. The study is published online in the Springer journal Behavioral Ecology and Sociobiology.

In the Czech Republic, it is common practice for domestic horse mares to be removed from their home environment and transported elsewhere for mating. After conceiving, they are returned back into their home environments and social groups, often with familiar males. The authors looked at whether there was a link between the common practice of away-mating and foetal loss.

They distributed a questionnaire on reproduction to private horse owners in the Czech Republic through an equine internet server. They compared the frequency of abortion between mares which had conceived with a home stallion and those mated with a foreign stallion. They then looked at the sexual behavior of mares returning from away-mating.

Mares mated with a foreign stallion aborted in 31 percent of cases while none of the mares mated within the home stable aborted. Furthermore, mares were more likely to have disrupted pregnancies when home males were in adjacent enclosures.

Barto and colleagues' results uncover a new phenomenon in domestic horses: a female counter-strategy to male infanticide. It appears that domestic mares choose not to raise foals fathered by stallions outside the home herd. If the dominant home male is not the father, he may subsequently attempt infanticide. Two things happen as a result. Either mares manipulate the males' paternity assessment by promiscuous mating with home males. Alternatively, if the mares are physically unable to have sexual activity with home males, i.e. they are in separate enclosures, they are seven times more likely to abort the foetus, to prevent the waste of energy in producing offspring likely to be lost.

The authors conclude: "The phenomenon shown in this study may explain the high incidence of domestic horse foetal loss. The regular practice of transporting the mare for mating or artificial insemination with a foreign stallion, and then bringing her back to an environment with home males, is probably one of the main causes of such high percentages of pregnancy disruption in domestic horses."


'/>"/>

Contact: Hanna Sigmann
hanna.sigmann@springer.com
49-622-148-78414
Springer
Source:Eurekalert

Related biology news :

1. Stem cell research to benefit horse owners and trainers
2. Queens University Belfast works to save Strangford horse mussels
3. Decline of shorebird linked to bait use of horseshoe crabs
4. Evidence of earliest known domestic horses found in Kazakhstan
5. Fossil teeth of browsing horse found in Panama Canal earthworks
6. Horse whisperers, lion tamers not needed: Scientists find genetic regions that soothe savage beasts
7. Male seahorses like big mates
8. Wild Iberian horses contributed to the origin of the current Iberian domestic stock
9. Mutant gene link to West Nile virus in horses
10. Research develops simple recipe for fungus-free horseradish
11. Trojan Horse attack on native lupine
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/16/2016)... NEW YORK , May 16, 2016   ... authentication solutions, today announced the opening of an IoT ... to strengthen and expand the development of embedded ... provides an unprecedented level of convenience and security with ... to authenticate one,s identity aside from DNA. EyeLock,s platform ...
(Date:4/28/2016)... 2016 First quarter 2016:   ... with the first quarter of 2015 The gross margin ... (loss: 18.8) and the operating margin was 40% (-13) ... Cash flow from operations was SEK 249.9 M (21.2) , ... unchanged, SEK 7,000-8,500 M. The operating margin for 2016 ...
(Date:4/15/2016)... April 15, 2016 Research ... Gait Biometrics Market 2016-2020,"  report to their offering.  ... ) , ,The global gait biometrics market is ... during the period 2016-2020. Gait analysis ... can be used to compute factors that are ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... BEACH, Calif. , June 23, 2016  Blueprint ... new biological discoveries to the medical community, has closed ... co-founder Matthew Nunez . "We have ... us with the capital we need to meet our ... will essentially provide us the runway to complete validation ...
(Date:6/23/2016)... Francisco, CA (PRWEB) , ... June 23, 2016 ... ... (EDC) software, is exhibiting at the Pennsylvania Convention Center and will showcase its ... Annual conference. ClinCapture will also be presenting a scientific poster on Disrupting Clinical ...
(Date:6/23/2016)... FRANCISCO , June 22, 2016  Amgen (NASDAQ: ... sponsorship of the QB3@953 life sciences incubator ... human health. The shared laboratory space at QB3@953 was ... overcome a key obstacle for many early stage organizations ... part of the sponsorship, Amgen launched two "Amgen Golden ...
(Date:6/22/2016)... Research and Markets has announced the addition of the ... The global biomarkers market ... 2013. The market is expected to grow at a five-year compound ... from $50.6 billion in 2015 to $96.6 billion in 2020. ... (2015 to 2020) are discussed. As well, new products approved in ...
Breaking Biology Technology: