Red Sindhi cattle in Brazil: population structure and distribution

Abstract

ABSTRACT. The Red Sindhi cattle breed was imported to Brazil in small numbers. Nowadays, the herds of this breed are distributed in the Northeast, Southeast and Midwest regions of the country. In this study, DNA samples of animals originating from 15 herds in the Northeast and Southeast regions have been analyzed to obtain the ancestry proportions, and to gain a better understanding of the current population structure of this breed in Brazil. Samples were genotyped using three different single nucleotide polymorphism (SNP) marker panels. Those markers have been used with the approach of unsupervised hierarchical clustering of individuals, and consequently, the ancestry of the population was divided into six different subpopulations. Three of those ancestry subpopulations were identified to be present in various different herds, while the other three were restricted to only one or two herds each. One of those herds has been kept isolated for more than 30 years, and it was identified to contain two almost exclusive subpopulations. To avoid important losses in the genetic diversity within the Red Sindhi breed in Brazil, we recommend the identification

Principal component and cluster analyses of production and fertility traits in Red Sindhi dairy cattle breed in Brazil

“…Purebred herds of this breed can also be found in India and many other countries that imported animals from Pakistan. In this way, Brazil also imported Red Sindhi animals, whereas those animals have been demonstrating good adaptation to a variety of environmental conditions (Faria et al 2004;Khatri et al 2004;Pundir et al 2007;Mello et al 2016;Panetto et al 2017a;Carvalho et al 2018).…”

Geographical distribution of zebu breeds and their relationship with environmental variables and the human development index

“…Such an environment directly affects the selection of local livestock, favoring the occurrence of other species, such as sheep and goats (Hermuche et al, 2013;McManus et al, 2014a). However, a higher occurrence of the Sindhi breed was observed for this region, indicating a more regional use of this breed (Panetto et al, 2017;Mello et al, 2020). Sindhi animals are seen to have excellent rusticity and tolerance to thermal stress, maintaining high productive and reproductive efficiency in adverse environments (Saraiva et al, 2015;Oliveira et al, 2017).…”