Abstract
The present work has as main objective to analyze the equine cardiac ventricles after death, from the morphoquantitative measurement. Six hearts of different races of horses with the presence or absence of different sports skills were used. The hearts were collected after the animal died and the cause of death was not stated. Six hearts of the equine species were analyzed, being 50% males and 50% females. As for the breed 33.3% was Quarter mile, 33.3% was Machador Broad Sleeve and 16.6% was Paulista Broad Sleeve and 16.6% was PSI. About athletic life, 50% were considered equine and the average weight of the animals was 426.83 kg, with the lowest weight 295 kg and the highest 560.0 kg. Regarding the dimensions of the hearts analyzed, the average weight of the ventricles was 2.71 kg, with the lowest weight 1.63 kg and the highest weight 3.83 kg; On the size of the base, it found an average of 22.28 cm, with the base smaller 17.0 cm and the largest base 25; As for the axis, the average was 25.66 cm, being the smallest of 22.0 cm and the largest of 30. Regarding the number of slices, case 1 was the smallest, being 9 and Case 2 and 5 presented a larger number of slices, being 12. Physical activity in horses seems to be associated with myocardial hypertrophy and this fact may increase the axis and allow greater cuts and action analysis.
Highlights
The introduction of the equine species in sport took place in Ancient Greece, starting from the Olympic Games, which competed in saddle or hitch races (Ferreira et al, 1996; Santos, 2015)
It is recognized that the sample size was restricted to perform tests of association between the variables, the sample size made it possible to perform a detailed analysis of each sample
It is known that the heart undergoes changes according to the presence, absence, and the type of modality and physical activity
Summary
The introduction of the equine species in sport took place in Ancient Greece, starting from the Olympic Games, which competed in saddle or hitch races (Ferreira et al, 1996; Santos, 2015). High level competitions require horses to have high physical training acquired with adequate training, so that there is less risk of injury (Hinchcliff et al, 2008; Mirian, 2008). Corresponding to this condition, horses can develop ventricular hypertrophy and other cardiac changes, due to exhausting high-intensity training (Hinchcliff et al, 2008; Young et al, 2005). The heart is responsible for providing and maintaining systemic circulation, according to the body's metabolic requirements, through blood pumping (Dyce et al, 2004; Marr & Bowen, 2011). The atria have thinner muscle layers, while in the ventricles the walls are thicker making up most of the heart. reflux (Cunningham, 2011; Dyce et al, 2004)
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