Efeito da endogamia sobre características morfométricas em cavalosda raça Mangalarga Marchador

Gonçalves, Renderson Welington; Costa, Maria Dulcinéia da; Rezende, Adalgiza Souza Carneiro de; Júnior, V. R. Rocha; Leite, J. R. A.

doi:10.1590/s0102-09352012000200023

Cited by 20 publications

(21 citation statements)

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“…Values close to 151.5 cm were also reported by Barbosa (1993), Zamborlini et al (1996), Rezende Júnior (2005), Medeiros (2006), and Gonçalves et al (2012). The proportion between this measure and head length varied less over time since head length also decreased.…”

Section: Resultssupporting

confidence: 75%

“…Values close to 150.2 cm were also observed by Barbosa (1993), Zamborlini et al (1996), Medeiros (2006), and Gonçalves et al (2012).…”

Section: Resultssupporting

confidence: 65%

“…Higher values were found by Barbosa (1993), Zamborlini et al (1996), ABCCMM (2005), and Gonçalves et al (2012). 1 1 y = -0.0004x + 1.2966 (r 2 = 76.13%); 2 y = -3E-05x 2 + 0.1113x -109.37 (r 2 = 93.06%); 3 y = -4E-05x 2 + 0.1398x -137.31…”

Section: Resultsmentioning

confidence: 85%

“…According to Gonçalves et al (2012), horse head length and width are important measures in the morphometric assessment of these animals for providing the breed's expression. According to Fontes (1954) and Nascimento (1999), in the Brazilian marching breeds, the small head, as long as it is balanced, provides, besides aesthetic beauty, functional quality to the animals, particularly if it is associated with a long neck, which facilitates riding and alleviates the thoracic limbs.…”

Section: Resultsmentioning

confidence: 99%

“…The measures were taken from the database of the Genealogic Registry Service of the Brazilian Height, length, and width were measured using a hipometer while the circumferences were measured with a measuring tape. According to Zamborlini et al (1996), Lage et al (2009), andGonçalves et al (2012), the measures assessed were measured as follows:…”

Section: Methodsmentioning

confidence: 99%

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Evolution of Morphometric Measures in the Mangalarga Marchador Breed

et al. 2016

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-The Mangalarga Marchador breed accounts for the largest horse herd in Brazil and has been experiencing national and international expansion. Nevertheless, there is little scientific production on the evolution of this breed and there are no studies on the morphometric transformations that took place during its formation. In this context, the present study aimed to assess the evolution in morphometric measures of the Mangalarga Marchador breed between 1970 and 2010. The research used information archived at the Brazilian Association of Mangalarga Marchador Breeders from 23,148 males and 92,980 females in a completely randomized experimental design. The six treatments consisted of the animals measured between 1970 and 1979, 1980 and 1989, 1990 and 1994, 1995 and 1999, 2000 and 2004, and 2005 and 2010, respectively. The measures assessed were: height at withers and croup, length of the head, neck, back, croup, shoulder, and body, width of the head and croup, thoracic circumference, and cannon circumference Over the period analyzed, males and females experienced a reduction in thoracic circumference, in the lengths of the head, back, croup, and shoulder, and in the widths of the head and croup. In the males, neck length and cannon circumference also decreased, while body length increased in females. Over time, breed selection led to smaller head, higher stature, and shorter trunk length. However, important measures for the breed's functionality, such as shoulder length and thoracic circumference, decreased.Keywords: Height. Length. Horses. Width. Circumference. EVOLUÇÃO DAS MEDIDAS MORFOMÉTRICAS DA RAÇA MANGALARGA MARCHADORRESUMO -A raça Mangalarga Marchador é responsável pelo maior rebanho de equinos do país e tem alcançado crescente expansão nacional e internacional. Apesar disso, é escassa a produção científica sobre a evolução dessa raça e não existem estudos sobre as transformações morfométricas que ocorreram ao longo de sua formação. Neste contexto, o presente estudo objetivou avaliar a evolução das medidas morfométricas da raça Mangalarga Marchador entre 1970 e 2010. Foram utilizadas informações arquivadas na Associação Brasileira dos Criadores do Cavalo Mangalarga Marchador de 23148 machos e 92980 fêmeas, em delineamento experimental inteiramente ao acaso. Os seis tratamentos foram constituídos pelos animais mensurados de 1970 a 1979, 1980 a 1989, 1990 a 1994, 1995 a 1999, 2000 a 2004 e 2005 a 2010, respectivamente. As medidas avaliadas foram: alturas na cernelha e garupa, comprimentos da cabeça, pescoço, dorso-lombo, garupa, espádua e corpo, larguras da cabeça e da garupa, além de perímetros torácico e da canela. Ao longo do período avaliado observou-se nos machos e fêmeas redução do perímetro torácico, dos comprimentos da cabeça, dorso-lombo, garupa e espádua e das larguras de cabeça e garupa. Nos machos houve também redução no comprimento do pescoço e aumento no perímetro da canela. Nas fêmeas verificou-se aumento no comprimento do corpo. Ao longo do tempo, a seleção da raça conferiu aos anim...

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Section: Resultssupporting

confidence: 75%

“…Values close to 150.2 cm were also observed by Barbosa (1993), Zamborlini et al (1996), Medeiros (2006), and Gonçalves et al (2012).…”

Section: Resultssupporting

confidence: 65%