Conformação Corporal De Equinos De Diferentes Grupos Genéticos

Rezende, Marcos Paulo Gonçalves de; Souza, Júlio César de; Mota, Marcelo Falci; Oliveira, N. M. de; Jardim, Rodrigo José Delgado

doi:10.1590/1089-6891v17i321194

Cited by 9 publications

(3 citation statements)

References 11 publications

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“…In this study, population of CAM horses, males and non-pregnant females, had BI that classified them as small in stature (BI<85) and matched a conformation closer to traction/load as described by Rezende et al (2016) (Table 1). Considering DTI, animals of both sexes were hypometric, small, and slim (DTI<10.5) as they approached adulthood.…”

Section: Discussionmentioning

confidence: 90%

Practical procedures to body weight estimation and correction factors applied to Campolina horses

Souza¹,

Teixeira²,

Fernandes³

et al. 2021

Revista Brasileira De Zootecnia

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The objective of this study was to evaluate the accuracy of the following six body weight (BW) estimation methods in Campolina (CAM) horses: A -weight tape placed at three different positions on the animal's thorax; B -Crevat and Quetelet's formula; C -Hall's formula; D -Hintz and Griffiths's table; E -Santos's table; and F -Cintra's formula. A total of 380 CAM horses were separated according to sex, age class, and gestational stage and evaluated. To determine their accuracy, weights measured on a scale and weight estimates of the six methods were compared by paired t-test, mean prediction error (MPE), and coefficient of determination (R²), using R software. The predictive capacity of method F was lower in the 6-12 months age class, so this formula is not indicated. The BW was overestimated compared with the actual weight by methods A (with weight tape placed in position 3) and B and underestimated by method C. Methods D and E accurately estimated BW of CAM horses. Correction factors are required to accurately estimate BW in this breed using methods B and C. Method A with the weight tape placed in position 2 is the most accurate for predicting BW, including pregnant female horses, and can, therefore, be considered the most suitable method for estimating BW of CAM horses.

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Section: Discussionmentioning

confidence: 90%

Practical procedures to body weight estimation and correction factors applied to Campolina horses

Souza¹,

Teixeira²,

Fernandes³

et al. 2021

Revista Brasileira De Zootecnia

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“…Measurements of WH and BW in the present study were lower than those reported for mules in Cuba (BW: 345 kg) (Ramajo et al, 2000) and Venezuela (WH: 148 cm and BW: 275 kg) (Pineda & Florio-Luis, 2016). These differences can be explained by the effect the parental genetic group (Rezende et al, 2018), which could be reflected on mules body measurements.…”

Section: Resultsmentioning

confidence: 99%

“…When analyzing PI, it's noteworthy its behavior as a more independent variable. Other possibilities of multivariate analysis have been reported in horses, in order to evaluate the morphofunctional diversity of animals from different genetic composition, aiming to identify a better biotype for the Pantanal region of Brazil (Rezende et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

Morphofunctional characteristics of working mules in mountain areas of the Colombian Central Andes

Feijóo

Álvarez

Jacometo

2019

Acta Sci. Anim. Sci.

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The application of morphofunctional measurements allows the selection of suitable animals to perform working activities and ensure that animal maximum capacities are not exceeded. Mules are commonly used by small farmers for agricultural work in mountain areas where the access is extremely difficult. We aimed to estimate the functionality indexes of working mules in mountain areas of the Colombian Central Andes. A total of 94 adult mules were evaluated for withers height, thoracic perimeter, body length, neck length, and body weight, which were used to determine the body index (BI), proportionality index (PI), and load carriage index (LCI). Descriptive statistics, analysis of correlations, and principal component analysis were performed. Males presented higher morphometric measurements than females. There was a negative correlation between BI with PI and LCI. The principal component analysis was able to merge characteristics in two components explaining 81.78% of the variance in the indexes. These results demonstrated that working mules in the studied area have morphometric characteristics that define them as mesolinear animals with a low frame and broad chest, and these characteristics can function as a guide to identify desirable conformation indices for working mules, determining values of adequate load, respecting animal welfare.

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Morphofunctional diversity of equine of varied genetic compositions raised in the Pantanal biome of Brazil

Rezende¹,

Souza

Carneiro³

et al. 2018

Trop Anim Health Prod

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Evaluating phenotypic diversity makes it possible to identify discrepancies in aptitudes among animals of different genetic bases, which is an indicator of adaptive or selective differences between populations. The objective of this work was to evaluate the morphofunctional diversity of 452 male and female adult equines (Arabian, Quarter Mile, Pantaneiro, and Criollo breeds, and undefined crossbreeds of horses and mules) raised in the Pantanal biome (Brazil). Linear measurements were performed to estimate conformation indexes. Initially, a discriminant analysis was performed, regardless of the animal's size, followed by factor analysis. The factors were characterized and used as new variables. The diversity among equines and their relationship with the factors were evaluated using multivariate analysis. The factors were classified according to their decreasing importance: balance, rusticity, and robustness for the measurement factors; and load, ability, conformation, and equilibrium for the index factors. The genetic groups of equines have well-defined morphofunctional characteristics. The main differences are based on the rusticity and ability typologies in relation to those based on performance. Equines introduced to the Pantanal biome presented a more robust and compact body with good conformation. As a result, these horses may have superior athletic performance during equestrian activities when compared to the Pantaneiro local breed. However, this biotype may represent less rusticity (less adaptive capacity). Therefore, the regional breed can be equal or better in equestrian activities than breeds introduced to the Pantanal biome. Thus, breeders may cross horses from local breeds as an alternative to those introduced. Undefined crossbred male equines presented a different profile from the Pantaneiro breed, which may indicate little use of crossbreeds in breeding.

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Conformação Corporal De Equinos De Diferentes Grupos Genéticos

Cited by 9 publications

References 11 publications

Practical procedures to body weight estimation and correction factors applied to Campolina horses

Practical procedures to body weight estimation and correction factors applied to Campolina horses

Morphofunctional characteristics of working mules in mountain areas of the Colombian Central Andes

Morphofunctional diversity of equine of varied genetic compositions raised in the Pantanal biome of Brazil

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