Phenotypic diversity in buffalo cows of the Jafarabadi, Murrah, and Mediterranean breeds

Abstract

-The objective of this work was to estimate the phenotypic diversity in Jafarabadi, Murrah, and Mediterranean buffalo cows (Bubalus bubalis). Thoracic perimeter, withers-and-rump height, body length, and biiliac, external biischiatic, external ilioischiatic, sacropubic, and mean biiliac diameters were measured. The following indexes were calculated: anamorphosis index, pelvic index, withers-to-rump ratio, body index, lateral-body index, relative body index, body capacity indexes 1 and 2, transversal pelvic index, longitudinal pelvic index, and thoracic-perimeter-to-withers ratio index. The effect of breed was evaluated using univariate (mean tests) and multivariate (size-free discriminant analysis and Fisher's linear discriminant function) analyses. The diversity among the breeds and their correlation with the variables were also evaluated using biplot graphs developed from principal component analysis. The breeds evaluated show a rectilinear, midline body model with similar capacity of muscular tissue development in body parts from which the most valuable cuts are extracted, and intermediate suitability for meat and milk production. The Jafarabadi breed has a larger body size, with a rear portion wider than longer, while the Murrah and Mediterranean breeds show similar biotypes, mainly differentiated in the pelvic region.Index terms: Bubalus bubalis, biometric measurements, pelvimetry, zootechnical indexes. Diversidade fenotípica em búfalas Jafarabadi, Murrah e MediterrâneoResumo -O objetivo deste trabalho foi estimar a diversidade fenotípica em búfalas (Bubalus bubalis) das raças Jafarabadi, Murrah e Mediterrâneo. Mensuraram-se perímetro torácico, altura de anterior e de garupa, comprimento do corpo e diâmetros do biilíaco, biisquiático externo, ilioisquiático externo, sacropúbico e biilíaco médio. Calcularam-se os seguintes índices: de anamorfose, pélvico, relação cernelha-garupa, corporal, corporal-lateral, corporal relativo, capacidade corporal 1 e 2, pélvico transversal, pélvico longitudinal e relação perímetro torácico-cernelha. Avaliou-se o efeito de raça por meio das análises univariada (teste de médias) e multivariada (análise discriminante independente do tamanho e função discriminante linear de Fisher). Também avaliaram-se a diversidade entre as raças e a sua relação com as variáveis, por meio de gráficos biplot, elaborados a partir da análise de componentes principais. As raças apresentam modelo corpóreo retilíneo, mediolíneo e com capacidade igual para desenvolvimento de tecido muscular em locais de onde são extraídos cortes nobres, com aptidões intermediárias para produção de carne e leite. A raça Jafarabadi apresenta maior porte corporal, assim como uma porção traseira mais larga do que comprida, enquanto a Murrah e a Mediterrâneo apresentam biótipos próximos, diferenciados principalmente na região pélvica.Termos para indexação: Bubalus bubalis, medidas biométricas, pelvimetria, índices zootécnicos.

Body morphometric measurements in Murrah crossbred buffaloes (Bubalus bubalis)

“…In India, Vohra et al (2015) registered an average FH of 128.66 cm in Gojri buffaloes. In Brazil, Andréa et al (2010) and Rezende et al (2017) both registered an average FH of 139 and 133 cm, respectively, in Murrah buffaloes. In Colombia, Bedoya and Hernández (2013) registered an average FH of 134.50 and an average HH of 137.89 cm in Murrah buffaloes.…”

“…The THW average was 51.42 cm, being near the average recorded by Vohra et al (2015), which was 53.6 cm per THW for Gojri female buffaloes. Oliveira et al (2001) showed higher values in Murrah crossbred buffaloes (59.0 cm), Ahmad et al (2013) in Nili Ravi buffaloes (56.9 cm), and Rezende et al (2017) in Murrah female buffaloes (58.9 cm). The rump region is responsible for the movement structure of animals and consists of the rump angles.…”

Morphometric diversity and phenotypic relationship among indigenous buffaloes of Banten, Indonesia

“…Morphometric characteristics are the most common criteria for livestock selection (Yilmaz et al 2013) and can be used as qualifying criteria that demonstrate the potential of livestock (Çılek and Petkova 2016). Body analysis has been recorded as a practical approach for investigating the potential of indigenous livestock (de Rezende et al 2017). Data on buffalo body measurements can play an essential role in livestock preservation (Edouard et al 2018).…”

“…Through this analysis, the distribution of animal populations can be described (Lafi et al 2016). A multivariate discriminant is a practical approach for analyzing factors to be measured in livestock (de Rezende et al 2017). In addition to assessing genetic diversity, the analysis of morphometric data can also be used to estimate genetic distances within and between livestock populations to reveal their genetic relationship (Yunusa et al 2013).…”

Multivariate analysis of body morphometric traits in conjunction with performance of reproduction and milk traits in crossbred progeny of Murrah × Jafarabadi buffalo (Bubalus bubalis) in North-Eastern Brazil

“…Among the statistical tools applied in animal production, multivariate analysis is an efficient approach used to study compound data for a large number of variables [20]. This technique aims to study several traits simultaneously, which can be difficult to measure or hard for selection programs to understand, especially when there is a negative genetic correlation between them [14].…”