In recrÃa, Â does it comprise more s the horse that the horse?
Posted in Paso Fino by Romualdo | No Comments
Many times I found myself talking to some friends about the importance of the mares in the program recrÃa ... and although we know that each parent contributes half of the genes that will inherit the rack ... always conclude that â € OEDE some € maneraâ the n Observation dictates that the mare contributes more s ...
Today I want to introduce two excellent articles that will help us understand a little better na what happens at the genetic © tico when choosing a stallion to serve our mares ... both articles refer to racehorses, but the concepts apply perfectly to our horses Paso Fino ...
The X Factor:
Influence on ± or sized heart and the importance in the mares of CRAA
Secretariat is considered by some as the best rider in the history of American hÃpica. This alazà n son of Bold Ruler was born in 1970 and Won 16 of the 21 races in which it participates ³. It is one of 11 U.S. triplecoronados, winning the 3 year ± os the Kentucky Derby, the Preakness and the Belmont Stakes. It was better 2 year ± os in 1972 and Horse of the Year in 1972 ± o and 73, Adema champion s of n in the same year Pasto ± o. Was removed by one because of an injury and taken to foster high expectations for successful reproduction n.
When he died in 1989, diecisà © is year ± os after © s of becoming champion n, great revelation ³ n was what it was discovered during his autopsy, poseÃa a heart of 9.988 kilos, offset by the 3.8 kilos on average has the thoroughbred race.
Before Secretariat, and Australians habÃan observed correlacià ³ n between filesize ± or the heart and the ability athletic © tica of the horses ... the interesting thing is that geneticists have discovered that this ability is given by the â € œgen of heart grandeâ € : X Factor ... and à © ste is transmitted trava © s of the line substitute, for the Mitochondrial DNA ...
Mitochondrial DNA and its role in maternal inheritance
The discovery of mitochondrial DNA (mtDNA) has been one of the most s relevant findings occurred in the recent history of the genetic © tica. In the specific case of the industry of thoroughbred racing the discovery of these genes of mitochondrial origin has become important because of the influence that they seem to have on the transmission n character is n intimately linked to â € œperformanceâ € or the ability athletic © tica.
The coat, the shape and sized ± or body, libido, earliness, speed, â € œstaminaâ €, the character, and so on., Are features whose presence or manifestacià ³ n in a horse is n governed by the information contained in genes. These genes which will be n the patra ³ n or mold for the formation ³ n of a new being, from the material genetic © tico provided with # kernel of comfortable © cells sex, ie à ³ vulo and sperm from the mother and father respectively, after joining the time of fecundacià ³ n n give rise to a new individual. In short, both parents transmit to their offspring genes especÃficos to contribute to the appearance and virtues of the new being. However, the discovery of mtDNA involves the transmission n of a material genetic © tico happens to the offspring without being subject to change and which is exclusively of maternal origin, indicating that part of the estate or certain features of a living being is only a product of genetic © tica maternal influence.
No special attention has been paid to the possibility that the information it contains no mtDNA ³ n manifestacià regulate certain characteristics linked to or athletic ± desempeà © tico. However, these features do not appear to be of type Physical Fitness, is not dependent on a horse mtDNA have long legs, short neck, broad chest, which is not alazà dapple. What has been raised is that the information n genetic © policy contained in the mtDNA will determine qua © so efficient is cellular metabolism at the level of those body systems that are responsible for a good performance ± or athletic © tico. Certain mares have been called mares over by the ability to broker their children, pass this information No genetic © tica of intact to their children of both sexes and it will continue was transmitting © ndose from generation to generation to trava © s of his daughters.
Either way the â € € œinbreedingâ outstanding mares may enhance the effect or influence the maternal line has on the ability of their offspring runner transvestite © s of the information contained in mtDNA.
For me, these items are very important because they give us a tool on which to base decisions so far have made â € appropriations by Observation nâ €, basa ndonos our instincts but no â € œrazà ³ n cientÃficaâ € to lean on ... I want to clarify that these studies this year ° n ± n in cloth todavÃa ales and have a long way to go, but at least show that we are on the right track ...
For example ... there is no doubt that a mare Galana was outstanding and that its influence can be traced trava © s of their offspring ... Galana, in turn, was the daughter of the Navy who also © n was a great breeding ...
and à © sta, Battle daughter whom we recognize for their great influence on our race, especially trava © s of his daughters ...
These observations are the same that led me to buy SerranÃa ... Labriego is the pimp more s remarkable that our race has had in the past 25 year ± os ... when we see his pedigree tend to look at the line of Cialito (Kofresà x Galantita) ... but when we make a study more deep s ruling found that the line was the line ... from here Diorama that crossing Labriego Diorama was so effective in producing higher copies ...
Likewise, cross Labriego with SerranÃa (Calypso Jr x Diorama) was also © n an intersection that is characterized
to produce superior specimens ... on the other hand, we understand here because the crossing on Labriegoâ œLabriego â € € â € "either inbreedings father / daughter or brother / sister â €" produce consistently stellar examples ...
Not everything is â € œcolor of Rosaa € and we have to have a lot of caution when making crosses n consanguÃneos to strengthen the maternal lines crossing possible ... because in the same way that an Acenta º and emphasize the characteristics
desirable ... also © n can be transmitted and reinforced the defects ... for this race ³ n is necessary to study carefully the crossings ... confirming that the horses and mares that appear in the register correspond to reality ... analyzing the characteristics of parents, grandparents / as, grandparents / as ...
This is just what to â € œabrirles the apetitoâ € ... both articles is n awesome and there is much we can learn from them ... so I invite you to read ... the can be accessed from this article, or the section â € œArtÃculos permanentesâ € shown in the right column ...













