Bovine landscape genetics in Brazil

Souza, Ana Clara Barbosa de; Egito, A. A. do; Peripolli, Vanessa; McManus, Concepta

doi:10.1590/1678-992x-2020-0142

Cited by 7 publications

(3 citation statements)

References 37 publications

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“…McManus et al (2016) and Hermuche et al (2013) show the dynamics of cattle and sheep production in Brazil and how the distribution of these animals' changes over time. As these animals are moving into new environments with relevant impacts of these changes on breeding values (Souza et al, 2021;. This is also essential looking at the predicted effects of climate change on animal production systems (Paim et al, 2022;McManus et al, 2022) and the search for selection signatures (Walugembe et al, 2019;Peripolli et al, 2020;Faria et al, 2022).…”

Section: Resultsmentioning

confidence: 99%

Livestock Breeding, Conservation and Genomics in Brazil: Who, When, Where, and What

Pimentel

Albuquerque

Dias

et al. 2023

Preprint

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We examined Brazilian animal breeding and genetics publishing patterns to identify the major research groups and where they publish. Data was collected in Scopus and analysed in Vosviewer (version 1.615, 2020). The analyses showed that this area of knowledge is centred on groups in São Paulo state universities. Most research is on classical quantitative genetics published in Brazilian journals with a lower impact (impact factor lower than the world mean of one). Beef cattle are the main species researched, with dairy cattle and sheep also present. Less information is available on goats, poultry, swine, and equines. Research must expand to regions outside São Paulo State and beyond classical quantitative genetics. Publishing should be directed towards international journals and an increase in international collaborations. We also use the data to discuss and suggest new research areas to improve Brazil´s food security and increase sustainable animal production.

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Section: Resultsmentioning

confidence: 99%

Livestock Breeding, Conservation and Genomics in Brazil: Who, When, Where, and What

Pimentel

Albuquerque

Dias

et al. 2023

Preprint

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“…Animals separated by geographic distances may present different genetic structures, to the extent of leading to subdivisions between breeds and within the same breed (Souza et al, 2022). Geographic isolation, reduced number of individuals, and adaptation to different environments can generate genetic drift, changing the frequency of alleles accumulated over generations.…”

Section: Introductionmentioning

confidence: 99%

Population Structure of Curraleiro Pé-Duro Cattle and its Relationship With the Serological Profile Against Pathogens of Economic and Zoonotic Interest

et al. 2022

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Curraleiro Pé-Duro (CPD) cattle, a Brazilian local breed, are animals that are highly resistant to infectious and parasitic diseases. Strategies for the conservation of the breed and the genetic resistance to diseases should also consider the characteristics of the breed. The objective of this study was to analyze the diversity and population structure of the CPD breed using microsatellite markers and to correlate the serological profiles for causative agents of brucellosis, leptospirosis, neosporosis, leukosis, infectious bovine rhinotracheitis, and bovine viral diarrhea. DNA samples of 608 bovines were amplified and genotyped using 28 microsatellite markers for breed characterization. The genotypes were assigned to three clusters, indicating a substructure population related to the geographic distance. The observed heterozygosity was lower than that expected in most loci, and fixation index (Fst) in the subpopulation values ranged from 0.03073 (ETH3) to 0.402 (INRA63) on cluster 1, from 0.00 (INRA32) to 0.39359 (INRA63) on cluster 2, and from 0.00 (INRA32) to 0.28483 (TGLA53) on cluster 3. The Brucella spp., Neospora caninum, and Bovine Leukemia Virus frequencies were significantly different (p < 0.05) between clusters. The differences between the occurrences of diseases were not sufficient to indicate a genetic subpopulation with increased resistance to infections.

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“…Means in the same column with different letters indicate a difference according to the Tukey test (p < 0.05).of Zebus Breeders (ABCZ). This study was limited to the zebu breeds in this herd book breeds as other breeds have been studied elsewhere and by other research groups (for example,Costa et al, 2014 for Holstein- Friesian; Costa et al, 2020 for Girolando;Souza et al, 2022 for Locally Adapted breeds in Brazil). The highest concentration of zebu breeds occurred in the Central-West region, followed by Southeast and Northern…”

mentioning

confidence: 99%

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

Lima

Peripolli

Josahkian³

et al. 2023

Sci. agric. (Piracicaba, Braz.)

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The environment is vital to the agricultural sector since it can cause adversities throughout the entire productive chain. This study evaluated the geographical distribution of zebu breeds in Brazil and correlated their occurrence with environmental variables and the human development index. Herds of purebred zebu cattle (Bos indicus) in Brazil were classified as beef, dairy, and dual-purpose breeds, and all breeds were spatialized in the ArcGIS program.Environmental (precipitation, temperature, relative humidity index) and the human development index (HDI) were examined. We conducted regression and logistic analyses. Zebu cattle showed a lower distribution in the Northeastern states compared to other locations, possibly due to harsh weather conditions, namely long periods of high temperatures and lower precipitation, directly affecting local livestock. Beef breeds were evenly spread throughout the country in regions influenced by environmental variables of higher precipitation, normalized difference vegetation index (NDVI), temperature, relative humidity (RH), and temperature humidity index (THI), as well as properties without smallholder farmers and rivers and streams with riparian vegetation. The regions for dual-purpose and dairy breeds were predominantly cultivated with cutting forages (e.g., sugarcane -Saccharum officinarum), with the integration of crops, livestock and/or forestry (i.e., combining different activities in the same area) and areas with a rotational grazing system (i.e., grazing management), indicating a higher occupation in fertile lands. The Gir breed, the only dairy breed evaluated in this study, was seen in establishments with smallholder farmers, characterized by small to medium farms, and in regions at higher altitudes.

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Bovine landscape genetics in Brazil

Cited by 7 publications

References 37 publications

Livestock Breeding, Conservation and Genomics in Brazil: Who, When, Where, and What

Livestock Breeding, Conservation and Genomics in Brazil: Who, When, Where, and What

Population Structure of Curraleiro Pé-Duro Cattle and its Relationship With the Serological Profile Against Pathogens of Economic and Zoonotic Interest

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

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