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Pires PGS, Oliveira GS, McManus C, Santos VM, Moraes PO. Impact of housing system on intestinal microbiota of laying hens - A systematic review. Res Vet Sci 2024; 170:105184. [PMID: 38382220 DOI: 10.1016/j.rvsc.2024.105184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 02/07/2024] [Accepted: 02/11/2024] [Indexed: 02/23/2024]
Abstract
Studies on the housing system's impact on laying hens' intestinal microbiota were retrieved from the Web of Science, PubMed, and Scopus (between 2017 and 2022). Inclusion criteria were studies that discussed measurable effects related to the topic written in English, Portuguese, and Spanish. Of 3281 articles in the identification stage, 12 studies were used in the systematic review. Asia developed most research relating to the subject. Most studies compared the intestinal microbiota of laying hens from conventional cages versus Cage-Free or Free-Range. However, no study has evaluated the intestinal microbiota of laying hens maintained in an organic system. Greengene and Silva were the most used reference in the studies. According to the results observed in the studies included in the systematic review, there is greater alpha diversity in the alternative system and a high dissimilarity between the conventional and alternative systems. Exposure to environmental factors such as soil, vegetation, natural lighting, access to pastures, and ingesting fibrous foods can lead to changes in the intestinal microbiota. A brief outline of published scientific evidence demonstrates that the housing system can change the gut microbiome of hens. This study summarises the relationship between the housing system and the intestinal microbiome of laying hens and provides a roadmap for future research regarding the gut microbiome of hens.
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Affiliation(s)
- P G S Pires
- Instituto Federal Catarinense, Campus Concórdia, SC, Brazil.
| | - G S Oliveira
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília, Brazil
| | - C McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília, Brazil
| | - V M Santos
- Laboratory of Poultry Science, Federal Institute of Brasília - Campus Planaltina, Brasília, Brazil
| | - P O Moraes
- Department of Animal Sciences and Rural Development, Universidade Federal de Santa Catarina - Campus Florianópolis, SC, Brazil
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2
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Oliveira GDS, McManus C, Dos Santos VM. Control of Escherichia coli in Poultry Using the In Ovo Injection Technique. Antibiotics (Basel) 2024; 13:205. [PMID: 38534640 DOI: 10.3390/antibiotics13030205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/18/2024] [Accepted: 02/20/2024] [Indexed: 03/28/2024] Open
Abstract
Pathogens, such as Escherichia coli (E. coli), have been identified as significant causes of poultry mortality. Poultry can serve as potential sources of E. coli transmission, even when asymptomatic, posing a substantial threat to food safety and human health. The in ovo administration of antimicrobials is crucial for preventing and/or effectively combating acute and chronic infections caused by poultry pathogens. To achieve this goal, it is critical that antimicrobials are properly injected into embryonic fluids, such as the amnion, to reach target tissues and trigger robust antimicrobial responses. Several protocols based on antimicrobials were evaluated to meet these requirements. This review analyzed the impacts of antimicrobial substances injected in ovo on the control of E. coli in poultry. The reduction in infection rates, resulting from the implementation of in ovo antimicrobials, combined with efforts aimed at hygienic-sanitary action plans in poultry sheds, reinforces confidence that E. coli can be contained before causing large scale damage. For example, antimicrobial peptides and probiotics have shown potential to provide protection to poultry against infections caused by E. coli. Issues related to the toxicity and bacterial resistance of many synthetic chemical compounds represent challenges that need to be overcome before the commercial application of in ovo injection protocols focused on microbiological control.
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Affiliation(s)
| | - Concepta McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília 70910-900, Brazil
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3
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Oliveira GDS, McManus C, Sousa HADF, Santos PHGDS, dos Santos VM. A Mini-Review of the Main Effects of Essential Oils from Citrus aurantifolia, Ocimum basilicum, and Allium sativum as Safe Antimicrobial Activity in Poultry. Animals (Basel) 2024; 14:382. [PMID: 38338025 PMCID: PMC10854582 DOI: 10.3390/ani14030382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
Poultry production is accompanied by the use of antimicrobial agents because no production step is free of microorganisms. In the absence of antimicrobial treatments with synthetic drugs, essential oils are among the most cited natural alternatives used to prevent and treat microbial contamination in poultry. Although there are several studies on the antimicrobial properties of essential oils, there is still no review that simultaneously compiles information on the leading antimicrobial role of essential oils from Citrus aurantifolia (CAEO), Ocimum basilicum (OBEO), and Allium sativum (ASEO) in poultry. Awareness of the antimicrobial role of these substances opens the door to encouraging their use in natural antimicrobial protocols and discouraging harmful synthetics in poultry. This review aimed to compile information on applying CAEO, OBEO, and ASEO as antimicrobials in poultry farming. The available literature suggests that these essential oils can proportionately align with the poultry industry's demands for microbiologically safe food products.
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Affiliation(s)
- Gabriel da Silva Oliveira
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília 70910-900, Brazil; (G.d.S.O.)
| | - Concepta McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília 70910-900, Brazil; (G.d.S.O.)
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McManus C, Neves AAB, Schleicher RT, Castro HCODE, Pimentel F, Pimentel D, Finan TJ. Brazilian South-South Scientific Collaboration and The Sustainable Development Goals. AN ACAD BRAS CIENC 2023; 95:e20230492. [PMID: 38126524 DOI: 10.1590/0001-3765202320230492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 07/30/2023] [Indexed: 12/23/2023] Open
Abstract
We look at Brazilian collaboration in Scientific papers based on SciVal and Incites regarding the Sustainable Development Goals (SDGs) of the United Nations. Data were collected from InCites® and SciVal® (2012-2021). Groups of Global South countries were formed (ASEAN, Asia, Africa, BRICS, Caribbean, Central and Latin America). Analyses included Cluster (Author position, impact/citations, open access, journal quartil), principal component, path and analysis of variance to see the effect of region and SDGs in Brazilian publishing. Scopus data were analysed in Vosviewer® for creating country networks through publication, citation and bibliographic coupling, as well as keyword analysis. SDG 3 (Good Health and Well-Being) dominates all Brazilian scientific collaborations with the various country groups. While gender equality shows greater importance in ASEAN and African countries, Life Below Water (SDG14), on Land (SDG15), and Climate Action (SDG13), are important in all regions. SDGs 1, 8, 10, 12, and 16 show less importance in this collaboration overall. Brazil is relatively more active in Zero Hunger (SDG2) and Life on Land (SDG15) than worldwide. Brazil South-South collaboration in published documents shows higher impact than North South in some areas. Collaboration priorities vary by region and triangulation with countries is high depending on language and region.
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Affiliation(s)
- Concepta McManus
- Universidade de Brasília, Campus Darcy Ribeiro, Instituto de Ciências Biológicas, Asa Norte, 70910-900 Brasília, DF, Brazil
- Catedra Paschoal Senise, Pró-reitoria de Pós-Graduação da USP, Rua da Reitoria, 374, 4º andar, Cidade Universitária, 05508-220 São Paulo, SP, Brazil
| | - Abilio Afonso B Neves
- Catedra Paschoal Senise, Pró-reitoria de Pós-Graduação da USP, Rua da Reitoria, 374, 4º andar, Cidade Universitária, 05508-220 São Paulo, SP, Brazil
| | - Rafael T Schleicher
- Institute of Applied Economic Research, Quadra 702/902, Torre B, Centro Empresarial Brasília, 50, Asa Sul, 70390-025 Brasília, DF, Brazil
| | - Henrique Carlos O DE Castro
- Universidade Federal do Rio Grande do Sul, Núcleo de Pesquisa sobre a América Latina, Av. Bento Gonçalves, 9500, São José, 91501-970 Porto Alegre, RS, Brazil
| | - Felipe Pimentel
- CEUB, 707/907, Campus Universitário, Asa Norte, 70790-075 Brasília, DF, Brazil
| | - Daniel Pimentel
- Universidade de Brasília, Campus Darcy Ribeiro, Instituto de Ciências Biológicas, Asa Norte, 70910-900 Brasília, DF, Brazil
| | - Timothy Joseph Finan
- University of Arizona, School of Anthropology, P.O. Box 210030, 1009 East South Campus Drive, 85721, Tucson, AZ, USA
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Oliveira GDS, McManus C, de Araújo MV, de Sousa DER, de Macêdo IL, de Castro MB, dos Santos VM. Sanitizing Hatching Eggs with Essential Oils: Avian and Microbiological Safety. Microorganisms 2023; 11:1890. [PMID: 37630450 PMCID: PMC10456749 DOI: 10.3390/microorganisms11081890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/24/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
Increased meat and egg production leads to concomitant changes in poultry practices, including the indiscriminate use of formaldehyde to sanitize hatching eggs. Although this sanitizer aids in the increase in poultry production, its toxic potential for man and for avian embryos represents an obstacle to its long-term use. This review assesses whether essential oils fit into the context of hatching egg contamination, reviewing their antimicrobial efficiency, toxicity to poultry embryos and chicks, and their sanitizing effects on poultry production parameters. Studies have indicated that, because they are safer, most of the essential oils studied can be a potential substitute for formaldehyde for minimizing microbial exposure of hatching eggs and embryos. However, complementary studies on the microbiological profile of embryos and chicks hatched from eggs sanitized with essential oils need to be carried out and the economic feasibility of the candidate products should also be considered.
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Affiliation(s)
- Gabriel da Silva Oliveira
- Faculty of Agronomy and Veterinary Medicine, University of Brasilia, Brasilia 70910-900, Brazil; (G.d.S.O.)
| | - Concepta McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasilia, Brasilia 70910-900, Brazil; (G.d.S.O.)
| | - Maria Viviane de Araújo
- Laboratory of Poultry Science, Federal Institute of Brasilia—Campus Planaltina, Brasilia 73380-900, Brazil
| | | | - Isabel Luana de Macêdo
- Faculty of Agronomy and Veterinary Medicine, University of Brasilia, Brasilia 70910-900, Brazil; (G.d.S.O.)
| | - Marcio Botelho de Castro
- Faculty of Agronomy and Veterinary Medicine, University of Brasilia, Brasilia 70910-900, Brazil; (G.d.S.O.)
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Vieira RA, McManus C. Bibliographic mapping of animal genetic resources and climate change in farm animals. Trop Anim Health Prod 2023; 55:259. [PMID: 37402849 DOI: 10.1007/s11250-023-03671-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/27/2023] [Indexed: 07/06/2023]
Abstract
Bibliometric mapping is a tool that allows you to visualize the academic production, as well as the publication trends over the years. In this study, we carried out the bibliometric mapping of citation, co-occurrence of keywords, co-citation, and bibliographic coupling for "animal genetic resources" and "climate change." Scopus was used to obtain the publication information and VOSViewer software to produce the maps. A total of 1171 documents were found from authors in 129 countries from 1975 to 2022. The USA, UK, and China are the top three countries producing scientific research on the topics of animal genetic resources and climate change. China is the country with the most recent publications. The USA, the UK, and China stood out in almost all the analyses, but other Asian and Latin American countries appear more recently and are becoming more important in this scenario. Most of the work is related to studies involving animal adaptation, conservation, and genetic diversity; however, in recent years, there has been an increasing amount of research involving genetic engineering, such as the use of genetic sequencing and single nucleotide polimorphism (SNP). This study can help to understand new research trends in the area of animal genetic resources and climate change and can assist in the development of future actions within the research community.
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Affiliation(s)
- Renata Augusto Vieira
- Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, Distrito Federal, Brasília, Brazil.
| | - Concepta McManus
- Universidade de Brasília, Instituto de Ciências Biológicas, Distrito Federal, Brasília, Brazil
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McManus C, Pimentel F, Pimentel D, Sejian V, Blackburn H. Bibliographic mapping for heat tolerance in pigs and poultry. Trop Anim Health Prod 2023; 55:256. [PMID: 37395815 DOI: 10.1007/s11250-023-03655-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 06/06/2023] [Indexed: 07/04/2023]
Abstract
Heat tolerance, especially under climate change scenarios, plays an increasingly import factor in pig and chicken production. We therefore evaluated bibliographic mapping of citation, co-occurrence of keywords, co-citation and bibliographic coupling for heat tolerance, and these species. Data was obtained from Scopus (Elsevier) and analysed in Vosviewer. We found a total of 2023 documents from 102 countries, of which 10 countries account for 50% of the publications (USA, China, Brazil, Iran, India, UK, Turkey, Germany, Egypt, and Australia). While heat tolerance is important worldwide, Global South countries, especially China, have become more prominent in publishing on this topic in recent years. Researchers from South America appear relatively isolated using the metrics of this study, with no clear explanation why. We speculate funding for research and publication may be a governing factor. The literature reviewed suggests an emphasis on mitigation strategies that include nutrition and genetics. An emphasis in poultry, especially Gallus gallus was observed and suggests more attention is needed on other species (for example, ducks and turkey). Biases in the analysis could arise due to lack of citations from recent papers, those not indexed in Scopus or in other languages. The paper advances understanding tendencies in this field of research and may point to future actions for policy makers addressing animal production and climate change research.
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Affiliation(s)
- Concepta McManus
- Universidade de Brasília, Brasília, DF, 70910-900, Brazil.
- Catedra Paschoal Senise, Pró-Reitoria de Pós-Graduação da USP, Rua da Reitoria, 374 - 4º Andar - CEP 05508-220, Cidade Universitária, São Paulo, SP, Brazil.
| | - Felipe Pimentel
- CEUB, 707/907 - Campus Universitário - Asa Norte, Brasília, DF, 70790-075, Brazil
| | | | - Veerasamy Sejian
- Rajiv Gandhi Institute of Veterinary Education and Research (RIVER), Kurumbapet, Puducherry, 605009, India
| | - Harvey Blackburn
- USDA-ARS, Agricultural Genetic Resources Preservation Research: Fort Collins, Fort Collins, CO, USA
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8
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Pimentel F, McManus C, Soares K, Caetano AR, de Faria DA, Paiva SR, Ianella P. Landscape Genetics for Brazilian Equines. J Equine Vet Sci 2023; 126:104251. [PMID: 36796740 DOI: 10.1016/j.jevs.2023.104251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/17/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023]
Abstract
Optimization of DNA collection for National gene bank and conservation programs requires information on spatial and genetic distribution of animals countrywide. The relationship between genetic and geographic distances were examined in 8 Brazilian horse breeds (Baixadeiro, Crioulo, Campeiro, Lavradeiro, Marajoara, Mangalarga Marchador, Pantaneiro and Puruca) using Single Nucleotide Polymorphism markers and collection point locations. Mantel correlations, Genetic Landscape Shape Interpolation, Allelic Aggregation Index Analyses and Spatial autocorrelation tests indicated a nonrandom distribution of horses throughout the country. Minimum collection distances for the national Gene Bank should be 530km, with clear divisions seen in genetic structure of horse populations in both North/South and East/West directions. Comparing Pantaneiro and North/Northeastern breeds, physical distance is not necessarily the defining factor for genetic differentiation. This should be considered when sampling these local breeds. These data can help optimise GenBank collection routines and conservation strategies for these breeds.
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Affiliation(s)
| | - Concepta McManus
- Departamento de Ciências Fisiológicas, Instituto de Biologia, Campus Darcy Ribeiro, Universidade de Brasilia, Asa Norte, Brasilia, DF, Brasil.
| | - Kaifer Soares
- Faculdade de Agronomia e Medicina Veterinária, Instituto Central de Ciências, Campus Darcy Ribeiro, Universidade de Brasília, Asa Norte, Brasilia, DF, Brasil
| | | | - Danielle Assis de Faria
- Faculdade de Agronomia e Medicina Veterinária, Instituto Central de Ciências, Campus Darcy Ribeiro, Universidade de Brasília, Asa Norte, Brasilia, DF, Brasil
| | | | - Patrícia Ianella
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brasil
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Oliveira GDS, McManus C, Salgado CB, Pires PGDS, de Figueiredo Sousa HA, da Silva ER, Dos Santos VM. Antimicrobial Coating Based on Tahiti Lemon Essential Oil and Green Banana Flour to Preserve the Internal Quality of Quail Eggs. Animals (Basel) 2023; 13:2123. [PMID: 37443921 DOI: 10.3390/ani13132123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/15/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
This study evaluated the microbiological and internal quality of quail eggs stored for 21 days at room temperature (29.53 ± 1.36 °C) after being coated with green banana flour and Tahiti lemon essential oil (GBF/TAH). One hundred and sixty-two quail eggs were equally distributed into three treatments: (1) uncoated eggs, (2) eggs coated with green banana flour (GBF), and (3) eggs coated with GBF/TAH. The Haugh unit (HU) of the eggs was significantly lower in the third week for uncoated eggs (70.94 ± 1.63, grade A) compared to eggs coated with GBF/TAH (81.47 ± 2.38, grade AA). On the 21st day of storage, the eggs coated with GBF/TAH had significantly lower total counts of aerobic mesophilic bacteria in the shell and egg contents compared to the other treatments. GBF/TAH coating is an effective blending approach to reduce the microbial load of the shell and egg contents and preserve the sensory and internal quality of the eggs.
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Affiliation(s)
| | - Concepta McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília 70910-900, Brazil
| | - Cristiane Batista Salgado
- Laboratory of Geosciences and Human Sciences, Federal Institute of Brasília-Campus Brasília, Brasília 70830-450, Brazil
| | | | | | - Edilsa Rosa da Silva
- Laboratory of Microbiology and Food, Federal Institute of Brasília-Campus Planaltina, Brasília 73380-900, Brazil
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de Carvalho Porto Barbosa M, Fioravanti MCS, Peripolli V, do Egito AA, Juliano RS, Ramos AF, Cardoso D, Laudares KM, Feijó GLD, Prado CS, Júnior RGV, de Oliveira NA, de Paula Rezende PL, Restle J, Costa GL, Costa MFOE, McManus C. Performance, carcass, and meat traits of locally adapted Brazilian cattle breeds under feedlot conditions. Trop Anim Health Prod 2023; 55:243. [PMID: 37337066 DOI: 10.1007/s11250-023-03656-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 06/06/2023] [Indexed: 06/21/2023]
Abstract
Little is known about the performance, carcass, and meat traits of locally adapted cattle in Brazil. This study aimed to compare the growth, slaughter, and carcass traits as well as meat quality of two local breeds (Curraleiro Pé-Duro and Pantaneiro) with the Nelore breed. Fifteen 30-month-old steers of each breed were weighted (Curraleiro Pé-Duro = 264.80 kg; Nelore = 346.80 kg; Pantaneiro = 316.20 kg) and raised in a feedlot condition for 112 days, with measurements to assess growth and slaughter, visual and carcass and meat traits. Data were submitted to variance and multivariate analyses. Nelore and Curraleiro Pé-Duro had similar Gluteus medius depths. Pantaneiro and Curraleiro Pé-Duro were superior for leg compactness index (P < 0.05) and had higher eye muscle area than Nelore (P < 0.05). Although there was no difference in daily weight gain and slaughter weight between breeds, Curraleiro Pé-Duro had a lower initial weight (264.80 kg) when compared to Nelore (346.80 kg; P < 0.05). Nelore and Curraleiro Pé-Duro deposited more fat than Pantaneiro (P < 0.05), while Curraleiro Pé-Duro and Pantaneiro had more muscle than Nelore (P < 0.05), which also had more bone and a higher percentage of second-quality cuts (P < 0.05). Meat from Nelore also showed lower succulence than Pantaneiro (P < 0.05) and higher shear force than the other breeds (P < 0.05). Pantaneiro's meat had the most capacity to retain water (P < 0.05), lower shear force (P < 0.05), and was more succulent (P < 0.05) when compared to the other breeds. Multivariate analysis showed that Pantaneiro, Curraleiro Pé-Duro, and Nelore breeds can be considered distinct in growth, carcass, and meat traits, with the local breeds showing superior meat traits. The local breeds Curraleiro Pé-Duro and Pantaneiro presented characteristics similar or better to those of the Nelore, proving to be animals with great productive potential and generate high meat quality under feedlot conditions.
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Affiliation(s)
- Maíra de Carvalho Porto Barbosa
- Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Campus Darcy Ribeiro, Asa Norte, Brasília, DF, 70910-900, Brazil
| | - Maria Clorinda Soares Fioravanti
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Rodovia Goiânia, km 8, Goiânia, GO, 74690-900, Brazil
| | - Vanessa Peripolli
- Instituto Federal Catarinense, Campus Araquari, Rodovia BR 280, km 27, Araquari, SC, 89245-000, Brazil.
| | | | | | - Alexandre Floriani Ramos
- Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, PqEB, Av. W5 Norte, Brasília, DF, 70770-917, Brazil
| | - Daniela Cardoso
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Rodovia Goiânia, km 8, Goiânia, GO, 74690-900, Brazil
| | - Kamilla Malta Laudares
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Rodovia Goiânia, km 8, Goiânia, GO, 74690-900, Brazil
| | | | - Cristiano Sales Prado
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Rodovia Goiânia, km 8, Goiânia, GO, 74690-900, Brazil
| | - Romário Gonçalves Vaz Júnior
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Rodovia Goiânia, km 8, Goiânia, GO, 74690-900, Brazil
| | - Neryssa Alencar de Oliveira
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Rodovia Goiânia, km 8, Goiânia, GO, 74690-900, Brazil
| | - Pedro Leonardo de Paula Rezende
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Rodovia Goiânia, km 8, Goiânia, GO, 74690-900, Brazil
| | - João Restle
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Rodovia Goiânia, km 8, Goiânia, GO, 74690-900, Brazil
| | - Gustavo Lage Costa
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Rodovia Goiânia, km 8, Goiânia, GO, 74690-900, Brazil
| | | | - Concepta McManus
- Instituto de Ciências Fisiológicas, Universidade de Brasília, Campus Darcy Ribeiro, Asa Norte, Brasília, DF, 70910-900, Brazil
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Vieira RA, Dias EA, Stumpf MT, Pereira GR, Barcellos JOJ, Kolling GJ, McManus C. Use of thermography and physiological rate to assess heat tolerance in cattle breeds. Trop Anim Health Prod 2023; 55:223. [PMID: 37222821 DOI: 10.1007/s11250-023-03613-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 04/27/2023] [Indexed: 05/25/2023]
Abstract
Thermography has grown in use in recent years. It is a valuable tool for measuring animal heat tolerance under heat stress conditions since it is a non-invasive, safe and practical methodology. Physiological variables such as respiration rate and eye temperature, and environmental variables such as air temperature and wet bulb temperature were analysed in animals from nine cattle breeds (Angus, Braford, Brangus, Canchim, Charolais, Hereford, Nelore, Simmental and Santa Gertrudis) and one bubaline (Mediterranean) at Rio Grande do Sul, Brazil. Positive correlations were observed between air temperature and respiration rate and eye temperature. Furthermore, the breed strongly influenced the eye temperature and respiration rate of the animals. Eye temperature showed strong correlation with air temperature and wet bulb temperature. Simmental and Nelore animals presented higher eye temperature values. Simmental presented alteration in respiratory rate before the other breeds and Nelore was the last breed to present this alteration. The inflection points in the broken line analysis indicated the environmental temperature limits at which breeds begin to change their respiration to compensate for environmental variation. The use of thermography has proven to be a technique with possible application to evaluate the temperature of animals. Logistic regression analysis allows us to observe how each breed behaves with the temperature change. Using respiration rates and eye temperatures it was possible to identify physiological limits for comfort in different breeds of bovine. In the future it would be interesting to conduct additional studies using other physiological variables and also other indices of climatic conditions.
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Affiliation(s)
- Renata A Vieira
- Faculdade de Agronomia E Medicina Veterinária, Universidade de Brasília, Brasília, Distrito Federal, Brazil.
| | - Eduardo A Dias
- Faculdade de Agroecologia E Licenciatura Em Educação Do Campo, Universidade Federal Do Rio Grande, São Lourenço Do Sul, Rio Grande Do Sul, Brazil
| | - Marcelo T Stumpf
- Faculdade de Agroecologia E Licenciatura Em Educação Do Campo, Universidade Federal Do Rio Grande, São Lourenço Do Sul, Rio Grande Do Sul, Brazil
| | - Gabriel R Pereira
- Faculdade de Medicina Veterinária (Campus 2), Universidade Feevale, Novo Hamburgo, Rio Grande Do Sul, Brazil
| | - Julio O J Barcellos
- Departamento de Zootecnia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Rio Grande Do Sul, Brazil
| | - Giovani J Kolling
- Departamento de Medicina Veterinária, Faculdade de Medicina Veterinária IMED, Passo Fundo, Rio Grande Do Sul, Brazil
| | - Concepta McManus
- Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, Distrito Federal, Brazil
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Oliveira GDS, McManus C, Salgado CB, Dos Santos VM. Bibliographical Mapping of Research into the Relationship between In Ovo Injection Practice and Hatchability in Poultry. Vet Sci 2023; 10:vetsci10040296. [PMID: 37104451 PMCID: PMC10143566 DOI: 10.3390/vetsci10040296] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 04/04/2023] [Accepted: 04/11/2023] [Indexed: 04/28/2023] Open
Abstract
Recent advances in poultry practice have produced new tools enabling the poultry industry to increase productivity. Aiming at increasing production quality, varying protocols of in ovo injection facilitate the introduction of exogenous substances into the egg to complement the nutrients that support embryonic development up to hatching, which are already available in the internal and external compartments. Due to embryonic sensitivity, adding any substance into the egg can be either advantageous or disadvantageous for embryonic survival and can influence hatch rates. Thus, understanding the relationship between poultry practices and production rates is the first step towards successful commercial application. This review aims to assess the influence on hatch rates of injecting different substances in ovo, including effects on embryo and chick health parameters where these are reported. Bibliographic mappings of co-authorship of citations, co-occurrence of keywords, and bibliographic coupling based on the in ovo injection technique and hatchability parameters were also performed. Using the Scopus database, 242 papers were retrieved, reviewed, and submitted for bibliographic mapping using the VOSviewer® software. This review provides a broad overview of just over 38 years' research on the subject, revealing that studies have significantly increased and peaked in 2020, being produced primarily by US researchers and published primarily in the journal Poultry Science. It also reveals that despite negative reports relating to some substances in the embryo, in ovo delivery of substances may possibly change the poultry industry for the better in terms of production rates (hatchability) and/or poultry health.
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Affiliation(s)
| | - Concepta McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília 70910-900, Brazil
| | - Cristiane Batista Salgado
- Laboratory of Geosciences and Human Sciences, Federal Institute of Brasília-Campus Brasília, Brasília 70830-450, Brazil
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McManus C, Pimentel F, de Almeida AM, Pimentel D. Tropical Animal Health and Production: a 55-year bibliographic analysis setting the course for a globalized international reference journal. Trop Anim Health Prod 2023; 55:160. [PMID: 37058151 DOI: 10.1007/s11250-023-03577-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2023] [Indexed: 04/15/2023]
Abstract
In this paper, we carried out a bibliographic mapping analysis with data from Scopus on publications in Tropical Animal Health and Production (TAHP) from its creation. This analysis is important for the journal and its readership, as a self-evaluation in terms of the scope and impact of the journal and how it is changing as well as aiding the editors in shaping the future direction of the journal. A total of 6229 papers were found, with an average of 8.71 citations per paper. Article Influence, Percentage of papers in Open Access, Immediacy Index, and Journal Impact Factor have all risen in recent years, although improvements are still necessary. With a cited half-life of 7.2 years, the percentage of papers in international collaboration has stabilized since 2010 (around 40%), down from around a peak of 60% in 2006. The journal is a Q2 journal with 86.4% of its documents cited. Of all documents published, 2401 were classified in SDG3 (Good Health and Wellbeing) followed by SDG2 (Zero Hunger) with 136. We mapped citations, co-citations, and bibliographic coupling and identified major authors, sources, references, and countries publishing in TAHP. The journal continues to play a key role in advancing knowledge and understanding of animal health and production in tropical and sub-tropical regions and supporting the development of sustainable animal production and veterinary medicine in these vast regions of the globe.
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Affiliation(s)
- Concepta McManus
- Universidade de Brasília, Brasilia, DF, 70910-900, Brazil.
- Catedra Paschoal Senise, Pró-reitoria de Pós-Graduação da USP, Rua da Reitoria, 374 - 4° andar - CEP 05508-220, Cidade Universitaria -, São Paulo, SP, Brazil.
| | - Felipe Pimentel
- CEUB, 707/907 - Campus Universitario - Asa Norte, Brasilia, DF, 70790-075, Brazil
| | - André M de Almeida
- LEAF-Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017, Lisboa, Portugal
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Rodrigues CS, de Faria DA, Lacerda TS, Paiva SR, Caetano AR, Blackburn H, McManus C. Lentivirus Susceptibility in Brazilian and US Sheep with TMEM154 Mutations. Genes (Basel) 2022; 14:genes14010070. [PMID: 36672811 PMCID: PMC9858560 DOI: 10.3390/genes14010070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/13/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Small ruminant lentiviruses (SRLVs) affect sheep and goats worldwide. The major gene related to SRLV infections is the Transmembrane Protein Gene 154 (TMEM154). We estimated the haplotype frequencies of TMEM154 in the USA (USDA-ARS) and Brazil (Embrapa) Gene Banks by using two different SNP genotyping methodologies, FluidigmTM and KASPTM. We also genotyped the ZNF389_ss748775100 deletion variant in Brazilian flocks. A total of 1040 blood samples and 112 semen samples from 15 Brazilian breeds were genotyped with Fluidigm for the SNP ZNF389_ss748775100 and 12 TMEM154 SNPs. A total of 484 blood samples from the Santa Inês breed and 188 semen samples from 14 North American sheep breeds were genotyped with KASP for 6 TMEM154 SNPs. All the Brazilian samples had the "I/I" genotype for the ZNF389_ss748775100 mutation. There were 25 TMEM154 haplotypes distributed across the Brazilian breeds, and 4 haplotypes in the US breeds. Haplotypes associated with susceptibility were present in almost all breeds, which suggests that genetic testing can help to improve herd health and productivity by selecting non-susceptible animals as founders of the next generations. Fluidigm and KASP are reliable assays when compared with Beadchip arrays. Further studies are necessary to understand the unknown role of TMEM154 mutations, host-pathogen interaction and new genes associated with the clinical condition.
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Affiliation(s)
- Camila Souza Rodrigues
- Faculdade de Agronomia e Medicina Veterinária, Instituto Central de Ciências, Campus Darcy Ribeiro, Universidade de Brasília, Asa Norte, Brasilia 70910-900, DF, Brazil
| | - Danielle Assis de Faria
- Faculdade de Agronomia e Medicina Veterinária, Instituto Central de Ciências, Campus Darcy Ribeiro, Universidade de Brasília, Asa Norte, Brasilia 70910-900, DF, Brazil
| | - Thaísa Sant’Anna Lacerda
- Faculdade de Agronomia e Medicina Veterinária, Instituto Central de Ciências, Campus Darcy Ribeiro, Universidade de Brasília, Asa Norte, Brasilia 70910-900, DF, Brazil
| | - Samuel Rezende Paiva
- Embrapa Recursos Genéticos e Biotecnologia, Final W5 Norte, Brasilia 70770-917, DF, Brazil
- Correspondence:
| | | | - Harvey Blackburn
- USDA-ARS—Agricultural Genetic Resources Preservation Research, 1111 South Mason Street, Fort Collins, CO 805214500, USA
| | - Concepta McManus
- Departamento de Ciências Fisiológicas, Instituto de Biologia, Campus Darcy Ribeiro, Universidade de Brasilia, Asa Norte, Brasilia 70910-900, DF, Brazil
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Pires P, Bavaresco C, Oliveira G, McManus C, Machado dos Santos V, Andretta I. Rice, soy, and whey protein coatings as carriers to extend egg shelf life. AAlim 2022. [DOI: 10.1556/066.2022.00180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
AbstractThis study aimed to compare and evaluate the effects of different protein coatings on maintaining the quality of eggs stored for six weeks at 20 °C. 308 brown table eggs from ISA Brown hens were used for four treatments: uncoated eggs, coated with rice protein concentrate – RPC, soy protein concentrate – SPC, and whey protein concentrate – WPC. Eggs started with Haugh Units (HU) of 82.01 and reduced in proportions of 28.75% (control), 12.82% (RPC), 12.90% (SPC), and 10.54% (WPC) on the last day of storage. Coated eggs showed smaller reductions (P < 0.0001) in this response. Protein coatings can effectively maintain the quality of eggs stored for six weeks at 20 °C. However, the WPC coating maintained the highest egg rate and the best yolk index for eggs stored for six weeks at 20 °C.
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Affiliation(s)
- P.G.d.S. Pires
- Department of Animal Science, Universidade Federal do Rio Grande do Sul, Bento Gonçalves 7712, Porto Alegre, Brazil
| | - C. Bavaresco
- Zootechnician, Non-ruminants Nutrition, Animal Science, Brazil
| | - G.d.S. Oliveira
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília, Federal District, Brazil
| | - C. McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília, Federal District, Brazil
| | - V. Machado dos Santos
- Laboratory of Poultry Science, Federal Institute of Brasília, Brasília, Federal District, Brazil
| | - I. Andretta
- Department of Animal Science, Universidade Federal do Rio Grande do Sul, Bento Gonçalves 7712, Porto Alegre, Brazil
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Cervo HJ, Jardim-Barcellos JO, Peripolli V, McManus C. Use of artificial insemination in dairy herds in Northwestern Rio-grandense, Brazil. REV COLOMB CIENC PEC 2022. [DOI: 10.17533/udea.rccp.v36n3a3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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O'Donovan M, Crowley P, Flanagan E, McManus C, Moloney E, Favier C, McKiernan M, Cornally N, Campbell L, O’Connor K, O’Caoimh R. 280 PERCEIVED NEED FOR A CLINICAL ETHICS SUPPORT SERVICE AT AN IRISH UNIVERSITY HOSPITAL. Age Ageing 2022. [DOI: 10.1093/ageing/afac218.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Ethics are the set of moral principles that guide a person’s behaviour. Ethical issues are a key component of healthcare and frequently arise in the management of hospitalized older patients. To improve decision-making and reduce burden on individual hospital staff, Clinical Ethics Support Services (CESS) have been widely-integrated into care pathways internationally. However, the need for CESS has received little attention in Irish hospitals.
Methods
A cross-sectional analysis of the ethical situation and CESS readiness at a tertiary hospital in Ireland was collected from July-October 2021 and in February 2022 via hard copies and online collection (SurveyMonkey). Both clinical (medicine, nursing other patient care role) and non-clinical (administrative, clerical, ICT, HR, general support staff and management) staff participated. Descriptive statistics were assessed taking the valid percentages, mean 5-item Likert scores and Friedman Test mean rank for ten ranked statements.
Results
In total, 199 people (13% response rate) completed the survey. Staff were largely (76%) clinical and the majority were qualified >10 years (57%). In all, 78% reported that ethical issues arise in the role (83% clinical staff, 59% non-clinical staff). Most (63%) were unsure who to contact about ethical concerns, instead seeking informal advice from colleagues (>90%). The majority of participants were interested in additional ethical training, especially on decision-making capacity (mean interest 4.18 out of 5), strategies for working with challenging patient/family situations (4.07 out of 5) and end-of-life care (4.06 out of 5). Out of ten options assessed, participants preferenced the development of a formal clinical ethics committee over education and training or the provision of educational materials.
Conclusion
Ethical issues commonly arise when caring for older hospitalized patients. This study found a perceived need and widespread interest in additional education as well as formal approaches to develop a hospital-based CESS, centred around a formal committee structure.
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Affiliation(s)
- M O'Donovan
- University College Cork , Cork, Ireland
- Mercy University Hospital , Cork, Ireland
| | - P Crowley
- Mercy University Hospital , Cork, Ireland
| | - E Flanagan
- Mercy University Hospital , Cork, Ireland
| | - C McManus
- Mercy University Hospital , Cork, Ireland
| | - E Moloney
- Mercy University Hospital , Cork, Ireland
| | - C Favier
- Mercy University Hospital , Cork, Ireland
| | | | | | - L Campbell
- National University of Ireland , Galway, Galway, Ireland
| | - K O’Connor
- Mercy University Hospital , Cork, Ireland
| | - R O’Caoimh
- University College Cork , Cork, Ireland
- Mercy University Hospital , Cork, Ireland
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Nogueira MB, de Faria DA, Ianella P, Paiva SR, McManus C. Genetic diversity and population structure of locally adapted Brazilian horse breeds assessed using genome-wide single nucleotide polymorphisms. Livest Sci 2022. [DOI: 10.1016/j.livsci.2022.105071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Barkoukis H, s. Harris, Nori S, McManus C. Spectrum of Collegiate Culinary and Nutrition Instruction (CCNI). J Acad Nutr Diet 2022. [DOI: 10.1016/j.jand.2022.08.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Harris S, Barkoukis H, McWhorter J, Ricelli O, Burns A, McManus C. Culinary Medicine Education: Curriculum inclusion and Program Director Attitudes, Beliefs and Confidence in ACEND Accredited Programs with a Supervised Practice Component. J Acad Nutr Diet 2022. [DOI: 10.1016/j.jand.2022.08.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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21
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Oliveira GDS, McManus C, Dos Santos VM. Essential oils and propolis as additives in egg coatings. WORLD POULTRY SCI J 2022. [DOI: 10.1080/00439339.2022.2119914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- G. D. S. Oliveira
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília, Brazil
| | - C. McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília, Brazil
| | - V. M. Dos Santos
- Laboratory of Poultry Science, Federal Institute of Brasília, Brasília, Brazil
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22
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Oliveira GDS, McManus C, dos Santos VM. Garlic as active principle of sanitiser for hatching eggs. WORLD POULTRY SCI J 2022. [DOI: 10.1080/00439339.2022.2105275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- G. D. S. Oliveira
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília, Brazil
| | - C. McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília, Brazil
| | - V. M. dos Santos
- Laboratory of Poultry Science, Federal Institute of Brasília, Brasília, Brazil
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23
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Oliveira GDS, McManus C, Pires PGDS, dos Santos VM. Combination of cassava starch biopolymer and essential oils for coating table eggs. Front Sustain Food Syst 2022. [DOI: 10.3389/fsufs.2022.957229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
This work aimed to evaluate the eggshell microbiota and the internal egg quality after coatings with cassava starch biopolymer enriched with different essential oils during 35 days of storage at 20°C. A total of 369 brown table eggs were used and distributed in the following treatments: uncoated eggs, coated with cassava starch + Ginger essential oil (CS+GIN), cassava starch + Lemongrass essential oil (CS+LEM), and cassava starch + Tahiti lemon essential oil (CS+TAH). The count of total aerobic mesophilic bacteria on coated eggshells at 0 and 35 days of storage were similar to each other (mean 0.70 ± 0.37 and 0.91 ± 0.22 log10 CFU/mL) and significantly lower compared to uncoated eggs (2.21 ± 0.17 and 3.17 ± 0.22 log10 CFU/mL), in that order. On the 35th day, coated eggs showed similar Haugh unit (HU) values between them (mean 70.61 ± 5.35; classified as A - high quality) and significantly higher than uncoated eggs (51.60 ± 4.28; classified as B - average quality). Cassava starch coatings added with essential oils preserved the internal quality of the eggs during storage for 5 weeks at 20°C, reducing the eggshell microbiota and effectively keeping it at low levels during storage.
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McManus C, Baeta Neves AA. Bibliometric measures in social sciences and humanities from different sources based on Brazilian data. COLLNET Journal of Scientometrics and Information Management 2022. [DOI: 10.1080/09737766.2022.2097896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Concepta McManus
- Institute of Biological Sciences, Universidade de Brasília, Brasilia, DF, 70910-900, Brazil
| | - Abilio Afonso Baeta Neves
- Paschoal Senise Chair Postgraduate Prorectorate Rua da Reitoria, 374, Cidade Universitaria, Butantã, Sao Paulo, Brazil
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Paim TDP, Alves dos Santos C, Faria DAD, Paiva SR, McManus C. Genomic selection signatures in Brazilian sheep breeds reared in a tropical environment. Livest Sci 2022. [DOI: 10.1016/j.livsci.2022.104865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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de Faria DA, do Prado Paim T, Dos Santos CA, Paiva SR, Nogueira MB, McManus C. Selection signatures for heat tolerance in Brazilian horse breeds. Mol Genet Genomics 2022; 297:449-462. [PMID: 35150300 DOI: 10.1007/s00438-022-01862-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 01/24/2022] [Indexed: 12/14/2022]
Abstract
Since domestication, horse breeds have adapted to their environments and differentiated from one another. This paper uses two methods to detect selection signatures in 23 horse breeds, eight of which are Brazilian (610 animals), both cold-blooded and warm-blooded, from temperate and tropical regions. These animals were genotyped using the GGP Equine BeadChip and we analysed the data by Principal Component Analysis (PCA). The samples were separated into groups based on their geographical area of origin and PCA results studied. The genomic regions under selection were detected by hapFLK and PCAdapt methodologies, identifying six regions under selection with at least one Brazilian horse breed. These regions contain genes associated with heat tolerance, skin colour, body size, energy production/metabolism, genes involved in protein degradation/turnover/DNA repair, genes reducing the impact of oxidative stress/cellular repair, and transcriptional regulation. This work confirmed LCORL and NCAPG gene regions in previous studies associated with body size on Equine Chromosome Autosome 3 (ECA3). On the same ECA3, a region implicating genes linked to coat colour was identified, also previously related to heat stress. Regions with genes coding heat shock proteins were found on ECA1 and 2, and many candidate genes for oxidation-reduction which are a natural response to heat stress. However, a larger sample size and whole-genome SNPs are needed to understand better and identify new candidate regions as well as their functional relation with heat tolerance.
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Affiliation(s)
- Danielle Assis de Faria
- Faculdade de Agronomia e Veterinária, Instituto Central de Ciências, Campus Darcy Ribeiro, Universidade de Brasília, Asa Norte, Brasília, DF, 70910-900, Brazil
| | - Tiago do Prado Paim
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Rodovia Sul Goiana, Km 01, Zona Rural, Rio Verde, GO, 75901-970, Brazil
| | - Camila Alves Dos Santos
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Rodovia Sul Goiana, Km 01, Zona Rural, Rio Verde, GO, 75901-970, Brazil
| | - Samuel Rezende Paiva
- Embrapa Recursos Genéticos e Biotecnologia, Final W5 Norte, Brasília, DF, 70770-917, Brasil
| | - Marcelo Bchara Nogueira
- Faculdade de Agronomia e Veterinária, Instituto Central de Ciências, Campus Darcy Ribeiro, Universidade de Brasília, Asa Norte, Brasília, DF, 70910-900, Brazil
| | - Concepta McManus
- Departamento de Ciências Fisiológicas, Instituto de Biologia, Campus Darcy Ribeiro, Universidade de Brasília, Asa Norte, Brasília, DF, 70910-900, Brazil.
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Portz AJ, Silva N, Lima G, Feijó L, Louvandini H, Peripolli V, Vieira R, McManus C. Temporal and spatial patterns in the detection of veterinary drug residues in poultry and swine in Brazil. Ciênc anim bras 2022. [DOI: 10.1590/1809-6891v23e-71763e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Food Safety is an important topic for public health and international trade in food. Residues of veterinary drugs and environmental contaminants in animal products can cause diseases and acute toxicity in organisms exposed to these substances. This study evaluated official monitoring data of veterinary drug residues from the Brazilian Ministry of Agriculture, Livestock and Supply in tissues of poultry and swine in the period between 2002 and 2014 to check for hidden patterns in the occurrence of six common drugs (Closantel, Diclazuril, Nicarbazin, Sulfaquinoxaline, Doxycycline and Sulfamethazinein). The analysis of data was performed by using two machine learning methods: decision tree and neural networks, in addition to visual evaluation through graphs and maps. Contamination rates were low, varying from 0 to 0.66%. A spatial distribution pattern of detections of substances by region was identified, but no pattern of temporal distribution was observed. Nevertless, regressions showed an increase in levels when these substances were detected, so monitoring should continue. However, the results show that the products monitored during the study period presented a low risk to public health.
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Affiliation(s)
| | | | | | - Leandro Feijó
- Ministério da Agricultura, Pecuária e Abastecimento, Brazil
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Portz AJ, Silva N, Lima G, Feijó L, Louvandini H, Peripolli V, Vieira R, McManus C. Padrões temporais e espaciais na detecção de resíduos de medicamentos veterinários em aves e suínos no Brasil. Ciênc anim bras 2022. [DOI: 10.1590/1809-6891v23e-71763p] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo A Segurança Alimentar é um tema importante para a saúde pública e o comércio internacional de alimentos. Resíduos de medicamentos veterinários e contaminantes ambientais em produtos de origem animal podem causar doenças e toxicidade aguda em organismos expostos a essas substâncias. Este estudo avaliou dados oficiais de monitoramento de resíduos de medicamentos veterinários do Ministério da Agricultura, Pecuária e Abastecimento em tecidos de aves e suínos no período de 2002 a 2014 para verificar padrões ocultos na ocorrência de seis medicamentos comuns (Closantel, Diclazuril, Nicarbazina, Sulfaquinoxalina, Doxiciclina e Sulfametazina). A análise dos dados foi realizada por meio de dois métodos de aprendizado de máquina: árvore de decisão e redes neurais, além da avaliação visual por meio de gráficos e mapas. As taxas de contaminação foram baixas, variando de 0 a 0,66%. Foi identificado um padrão de distribuição espacial das detecções de substâncias por região, mas nenhum padrão de distribuição temporal foi observado. No entanto, as regressões mostraram um aumento nos níveis quando essas substâncias foram detectadas, portanto, o monitoramento deve continuar. No entanto, os resultados mostram que os produtos monitorados durante o período do estudo apresentaram baixo risco à saúde pública.
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Affiliation(s)
| | | | | | - Leandro Feijó
- Ministério da Agricultura, Pecuária e Abastecimento, Brazil
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McManus C, Hermuche PM, Paiva SR, Guimarães RF, Carvalho Junior OA, Blackburn HD. Gene bank collection strategies based upon geographic and environmental indicators for beef breeds in the United States of America. Livest Sci 2021. [DOI: 10.1016/j.livsci.2021.104766] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Affiliation(s)
- G. D. S. Oliveira
- Faculty of Agronomy and Veterinary Medicine (FAV), University of Brasília, Brasília, Brazil
| | - V. M. dos Santos
- Laboratory of Poultry Science, Federal Institute of Brasília, Brasília, Brazil
| | - C. McManus
- Faculty of Agronomy and Veterinary Medicine (FAV), University of Brasília, Brasília, Brazil
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Doyle K, McManus C, O'Brien M, Brewer L. 141 USING A TEMPLATE TO IMPROVE COMMUNICATION ON DISCHARGE LETTERS REGARDING BONE PROTECTION THERAPY AFTER HIP FRACTURE. Age Ageing 2021. [DOI: 10.1093/ageing/afab219.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Abstract
Background
Hip fractures are a significant cause of morbidity and mortality amongst older adults. The Irish Hip Fracture Database Standard 5 requires that all patients with hip fracture have a bone health assessment completed; most are commenced on bone protection therapy (BPT) to reduce future fractures. Communication to general practitioners (GPs) regarding long-term BPT is often incomplete and challenging to improve. We aimed to upgrade this communication process at discharge.
Methods
Initial audit was conducted assessing documentation of BPT after hip fracture in discharge letters to GPs. Subsequently we created a detailed BPT template for discharge letters containing clear information for GPs regarding medication initiation and advice for ongoing management. The template was introduced and doctors were educated on its use. We then re-audited discharge letters following this intervention. Patients included were over 60 years old with hip fracture. Patients deemed clinically unsuitable for BPT were excluded.
Results
Ninety discharge letters were reviewed, 45 at initial audit and another 45 after introducing the BPT template. Mean age was 80 years old, 66 (73%) were female. In the first audit cycle, 28/45 discharge letters (62%) briefly specified BPT. On repeating the audit cycle (following introduction of the discharge letter template) all 45/45 discharge letters (100%) clearly specified BPT. Most letters (41/45; 91%) included the detailed BPT template. Following this intervention all doctors reported increased awareness and understanding of BPT, and satisfaction with template use in discharge letters.
Conclusion
Effective implementation of a discharge letter template significantly improved communication to GPs regarding BPT following hip fracture.
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Affiliation(s)
- K Doyle
- Beaumont Hospital , Dublin, Ireland
| | | | | | - L Brewer
- Beaumont Hospital , Dublin, Ireland
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Blackburn HD, Paiva SR, Hermuche P, McManus C. PSXII-6 Landscape genetics used to identify gene bank beef cattle collection completeness and gaps. J Anim Sci 2021. [DOI: 10.1093/jas/skab235.457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Gene banks (GB) primary goal is to capture genetic diversity among livestock breeds. Genetic diversity assessments by US GB have used pedigrees and genetic markers. Landscape genetics (LG), is a third approach for evaluating germplasm collections and genetic resources. We evaluated the GB’s beef collection using LG for the purpose of assessing collection gaps/completeness by using geographic information systems. The current beef cattle collection contains 3,916 animals from 11 Bos indicus (including composite, BI), and 40 Bos taurus British (BTB) and Bos taurus continental (BTC) breeds. Each GB animal was georeferenced by latitude and longitude. In addition, county level satellite imagery of the continental US was obtained and included: temperature, humidity, precipitation, and normalized difference vegetation index (NDVI). Temperature–humidity index (THI) was computed from temperature and humidity by county. In addition, USDA beef cattle statistics by county were used in mapping overlays. There was a high correspondence between in-situ cattle density and GB collection throughout the mid-west and extending to both borders. Evaluating genetic groups demonstrated that BI were derived from the Gulf Coast region, while BTB and BTC shared a distribution throughout the mid-west. The collection’s BTB were also sourced from the inter-mountain west. All environmental parameters were combined to identify similar environmental conditions where germplasm had already been collected. Through this process future geographies for sampling genetic groups were apparent. New collection areas should include the Great Basin, west Texas, New Mexico and Arizona. Further BI collections should be performed in low THI score areas and BTB and BTC collections in high THI areas is needed. Using GIS/LG adds a new perspective and resolution for future collections to ensure cattle that are adapted to a particular environment are added to the collection.
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McManus C, Neves AAB, Diniz Filho JA, Maranhão AQ, Souza Filho AG. Profiles not metrics: the case of Brazilian universities. AN ACAD BRAS CIENC 2021; 93:e29290261. [PMID: 34495201 DOI: 10.1590/0001-3765202120200261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/21/2020] [Indexed: 11/21/2022] Open
Abstract
Public universities, and science in general, in Brazil, are under attack from key persons of the government in interviews and articles published in non-scientific journals. Here we look at bibliography data from international science metric platforms (Scival® and Incites®) and official Brazilian agencies such as CAPES and CNPq to reach some conclusions based on scientific analysis. Brazilian Science has shown a steady improvement in quantity and quality over the last 20 years but has recently suffered (since 2015) under severe financial restrictions. An increase in international collaboration also increased citation impact, reaching almost five times the world average. While the medical and natural sciences show the highest impact and prominence, social sciences and the humanities also have spotlight areas with international excellence. Different research institutions and universities offer a variety of production profiles and impacts. This diagnosis shows the need for universities and research institutes in Brazil and funding agencies to undergo strategic planning for definition of mission/vision, goals to be reached, and areas for priority development. Continued support of public universities by the government is necessary for Brazilian autonomy in science and technology and its full integration in the world scientific community.
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Affiliation(s)
- Concepta McManus
- Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Ciências Fisiológicas, Campus Darcy Ribeiro, Asa Norte, 70910-900 Brasília, DF, Brazil
| | - Abilio A Baeta Neves
- Cátedra Paschoal Senise, Pró-Reitoria de Pós-Graduação, Universidade de São Paulo, Rua da Reitoria, 374, 4º andar, Cidade Universitária, 05508-220 São Paulo, SP, Brazil
| | - José Alexandre Diniz Filho
- Universidade Federal de Goiás, Instituto de Ciências Biológicas, Departamento de Ecologia & Evolução, Avenida Esperança, s/n, Campus Samambaia, 74690-900 Goiânia, GO, Brazil
| | - Andrea Q Maranhão
- Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Biologia Celular, Campus Darcy Ribeiro, Asa Norte, 70910-900 Brasília, DF, Brazil
| | - Antonio G Souza Filho
- Universidade Federal de Ceará, Centro de Ciências, Departamento de Física, Campus do Pici, Bloco 922, 60440-900 Fortaleza, CE, Brazil
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McManus C, Barkoukis H. Positioning the Registered Dietitian for Culinary-Centric Research. J Acad Nutr Diet 2021. [DOI: 10.1016/j.jand.2021.06.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Perini J, Ludtke C, Carmo N, Peripolli V, Tanure C, Seixas L, McManus C. Sistema de alojamento durante a prenhez sobre os parâmetros comportamentais, reprodutivos e sanitários de porcas. ARCH ZOOTEC 2021. [DOI: 10.21071/az.v70i271.5507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
O objetivo deste estudo foi determinar se os parâmetros comportamentais, reprodutivos e de saúde podem diferir entre as porcas alojadas individualmente durante a gestação (Individual) ou alojadas em grupos entre os dias 3 a 5 (Grupo5) ou 38 a 42 (Grupo42) após a inseminação. Após a inseminação, 198 porcas de uma mesma granja comercial foram alocadas aleatoriamente em um dos três tratamentos, denominados sistema Individual, Grupo5 e Grupo42. Houve interação entre o sistema de alojamento e o tempo de gestação sobre os parâmetros comportamentais. A prevalência de porcas com comportamento ativo foi maior no sistema Individual do que nos sistemas em grupos. As porcas no sistema Individual apresentaram maior prevalência de comportamento exploratório do que as porcas no sistema Grupo5. As porcas no sistema Individual apresentaram menor prevalência de problemas de saúde, como vulva e lesões corporais e esterco no corpo, e maior prevalência de prolapso retal e constipação do que as porcas nos sistemas de grupos. As porcas no sistema Grupo42 apresentaram maior número de leitões nascidos vivos, total de leitões nascidos e menor período de gestação do que as porcas no sistema Individual. Menor número de fetos mumificados e maior número de natimortos e natimortos tipo 2 foram associados a porcas no sistema Grupo5. As porcas no sistema Grupo5 apresentaram redução de problemas de saúde, como prolapso retal e bursite e inflamação de pele, além de resfriados, e diminuíram o nível de estresse pois apresentaram maior expressão de comportamento social positivo e diminuição de comportamentos estereotipados, além de manterem os parâmetros reprodutivos semelhantes àquelas do sistema Individual.
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de Souza Teixeira O, Kuczynski da Rocha M, Mendes Paizano Alforma A, Silva Fernandes V, de Oliveira Feijó J, Nunes Corrêa M, Andrighetto Canozzi ME, McManus C, Jardim Barcellos JO. Behavioural and physiological responses of male and female beef cattle to weaning at 30, 75 or 180 days of age. Appl Anim Behav Sci 2021. [DOI: 10.1016/j.applanim.2021.105339] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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37
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Paim TP, Paiva SR, de Toledo NM, Yamaghishi MB, Carneiro PLS, Facó O, de Araújo AM, Azevedo HC, Caetano AR, Braga RM, McManus C. Origin and population structure of Brazilian hair sheep breeds. Anim Genet 2021; 52:492-504. [PMID: 34087001 DOI: 10.1111/age.13093] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2021] [Indexed: 12/01/2022]
Abstract
Brazilian hair sheep constitute a genetic diversity hotspot. These animals are found in the harsh environments of the Brazilian Northwest (semi-arid) region. Genotypes (50K SNP chip) from seven Brazilian sheep breeds (five hair and two coarse wool types) and 87 worldwide breeds were used to test for population structure, admixture and genetic diversity. Moreover, phylogenetic trees evaluating migration events between genetic groups were built. Brazilian Somali, a fat-tailed breed, had a close relationship with East African breeds and clustered distinctly from other Brazilian breeds. Brazilian Blackbelly and Barbados Blackbelly had a close relationship. The Morada Nova breed did not show close relationships with European or African breeds, revealing a single migration event from an Algerian hair breed. Brazilian Fat-tail and Morada Nova share a common ancestor, but the former showed introgressions from Brazilian Somali and Afrikaner breeds, explaining the fat-tail phenotype. The Santa Inês breed received a substantial contribution from Brazilian Bergamasca and showed an admixed origin with recent introgressions from other breeds, mainly from Suffolk. Furthermore, Brazilian Somali and Brazilian Fat-tail are the most endangered sheep genetic resources in Brazil and should be the focus for ex situ conservation programs. In conclusion, Brazilian hair sheep show an African origin and are characterized by diverse genetic composition, reinforcing the need for conservation of these genetic resources, and at the same time, this highly diverse group has variability that can be used in breeding programs.
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Affiliation(s)
- T P Paim
- Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Campus Darcy Ribeiro, Brasília, Distrito Federal, 70910-900, Brazil.,Instituto Federal de Educação, Ciência e Tecnologia Goiano, Iporá, Goiás, 76200-000, Brazil
| | - S R Paiva
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, Distrito Federal, 70770-917, Brazil
| | - N M de Toledo
- Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Campus Darcy Ribeiro, Brasília, Distrito Federal, 70910-900, Brazil
| | - M B Yamaghishi
- Embrapa Informática Agropecuária, Campinas, São Paulo, 13083-886, Brazil
| | - P L S Carneiro
- Departamento de Ciências Biológicas, Universidade Estadual do Sudoeste da Bahia, Jequié, Bahia, 45205-490, Brazil
| | - O Facó
- Embrapa Caprinos e Ovinos, Sobral, Ceará, 62010-970, Brazil
| | - A M de Araújo
- Embrapa Meio-Norte, Teresina, Piaui, 64008-780, Brazil
| | - H C Azevedo
- Embrapa Tabuleiros Costeiros, Aracaju, Sergipe, 49025-040, Brazil
| | - A R Caetano
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, Distrito Federal, 70770-917, Brazil
| | - R M Braga
- Embrapa Roraima, Boa Vista, Roraima, 69301-970, Brazil
| | - C McManus
- Instituto de Biologia, Universidade de Brasília, Brasília, Distrito Federal, 70910-900, Brazil
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de Souza Teixeira O, Kuczynski da Rocha M, Gil Sessim A, Dezordi Sartori E, Machado da Rosa Y, Muniz de Oliveira MC, Abud Lima J, Andrighetto Canozzi ME, Urdapilleta Tarouco J, de Faria Valle S, McManus C, Jardim Barcellos JO. Weaning at 30, 75 and 180 days: Comparison between immune responses of beef calves. Res Vet Sci 2021; 138:53-61. [PMID: 34111714 DOI: 10.1016/j.rvsc.2021.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 05/10/2021] [Accepted: 06/01/2021] [Indexed: 10/21/2022]
Abstract
The interruption of the maternal-filial bond in young calves can alter the physiological responses due to increased stress at this moment. Therefore, we aimed to analyze the association between age at weaning and the immune responses of 64 beef calves weaned abruptly. The animals were distributed in three weaning (W) treatments: hyper-early (W30), early (W75) and conventional (W180). The treatments agree with the weaning ages used in cow-calf systems in South America. Blood samples were collected of all experimental animals on the day of weaning and days 1, 2 and 7 post-weaning day of the three treatments. Blood samples were used to analyze hematological variables, total plasma proteins (TPP), fibrinogen, serum amyloid A protein (SAA) and cortisol. The variables analyzed were influenced by the sampling day (P < 0.001) and the calf gender (P < 0.05), and an interaction between treatment x sampling day was observed. Over the study period, high serum cortisol levels were observed for W30 calves. The serum amyloid A protein was significantly influenced by sampling day. When compared to W180 calves, W30 and W75 animals showed prolonged concentrations in plasma fibrinogen. In addition, they presented neutrophilia and lymphopenia during the 180-187 days period, which resulted in a greater neutrophil:lymphocyte ratio (N:L ratio). Calf gender resulted in changes in the number of blood leukocytes (P < 0.05). This result provides an alert for weaning at an early age, indicating that different management strategies must be tested to minimize physiological instabilities in critical periods of the life of animals.
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Affiliation(s)
- Odilene de Souza Teixeira
- Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil.
| | - Marcela Kuczynski da Rocha
- Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil
| | - Amir Gil Sessim
- Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil
| | - Everton Dezordi Sartori
- Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil
| | - Yago Machado da Rosa
- Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil
| | | | - Julia Abud Lima
- Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil
| | - Maria Eugênia Andrighetto Canozzi
- Instituto Nacional de Investigación Agropecuaria, Programa Producción de Carne y Lana, Estación Experimental INIA La Estanzuela, Ruta 50 km 11, 39173, Colonia, Uruguay
| | - Jaime Urdapilleta Tarouco
- Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil
| | - Stella de Faria Valle
- Department of Pathology and Veterinary Clinic, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, RS, Brazil
| | - Concepta McManus
- Institute of Biological Sciences, Universidade de Brasília, 70910-900 Brasília, DF, Brazil
| | - Júlio Otávio Jardim Barcellos
- Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil
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Perini J, Ludtke C, Tanure C, Seixas L, Peripolli V, McManus C. Effect of housing system during pregnancy on reproductive parameters of sows. ARQ BRAS MED VET ZOO 2021. [DOI: 10.1590/1678-4162-11912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT The aim of this study was to evaluate the reproductive performance of sows in individual stalls (Stall) or group-housed into groups on days 3 to 5 (Pen5) or 38 to 42 (Pen42) after breeding. The reproductive data was collected from the operating system of the farm establishing the average of the weekly performances of the sows that gave birth, for four years, except for the Pen5 system, which was evaluated for three years. Statistical analyses were performed using SAS®, using MIXED (for quantitative traits), NPAR1WAY (for categorical traits) and LOGISTIC (binomial traits) procedures, using sows as a repeated measure. Sows in Stall system had piglets with higher birth weight them sows in the group-housed system (P<0.05), however the piglets born alive, total piglets weaned, average litter weight, and duration of farrowing were lower in this system than in the group-housed (P<0.0001). There was no difference between Pen5 and Stall systems for gestation period and mummified piglets. The Pen42 system had a higher percentage of mummified piglets and a shorter gestation period, when compared Pen5 and Stall systems (P<0.0001), and similar results to the Pen5 system for duration of farrowing, piglets born alive, stillbirths, total piglets weaned, average litter weight and birth weight (P<0.0001).
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Affiliation(s)
| | - C.B. Ludtke
- Associação Brasileira de Criadores de Suínos, Brazil
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Souto PL, Carmouy LST, Santos C, Martins E, Martins V, Hatamoto-Zervoudakis LK, Murad AM, Mehta A, McManus C, Ramos AF. Seasonal differences in seminal plasma proteins from two bovine breeds adapted to a subtropical climate. Trop Anim Health Prod 2021; 53:61. [PMID: 33389175 DOI: 10.1007/s11250-020-02536-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 12/17/2020] [Indexed: 11/26/2022]
Abstract
This study was designed to evaluate the seasonal expression of seminal plasma proteins from two bovine breeds adapted to a subtropical climate and their associations with post-thawing sperm and environmental characteristics. Semen samples were obtained three times in summer and three times in winter from four Crioulo Lageano and four Angus bulls. Seminal plasma was obtained by centrifugation, and the other portion of the semen was cryopreserved. Seminal plasma proteins were identified by 2D-nanoUPLC-MSE. Post-thawing assessments of sperm kinetics, morphology and membrane integrity were performed. Environmental data such as air temperature, air humidity and black globe temperature (BGT) were recorded, and the temperature-humidity index (THI) was calculated in summer and winter. Results showed that the climate varied significantly between seasons. Although no statistical differences were observed in semen quality between breeds, the protein profiles varied within and between seasons. We suggest that the most critical proteins in summer affecting sperm characteristics were TIMP-2, DNase, Clusterin, CFAH and GPx6. TIMP-2 and DNase showed a higher abundance in Crioulo Lageano in comparison with Angus, while Clusterin, CFAH and GPx6 presented a lower abundance. To the best of our knowledge, this is the first report of a recently evolved type of glutathione peroxidase, GPx6, in seminal plasma of bovines. In winter, five proteins were considered to be more critical: BSP1, BSP3, CCL2, Sulfhydryl oxidase and TIMP-2. BSP1 and TIMP-2 showed a lower abundance while BSP3, CCL2 and Sulfhydryl oxidase presented a higher abundance in this season in Crioulo Lageano in comparison with Angus.
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Affiliation(s)
- Paula Lorena Souto
- Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, 70910-900, Brazil
| | | | - Cristiane Santos
- Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica - PqEB, PO Box 12 02372, Brasília, 70770-917, Brazil
| | - Edison Martins
- Brazilian Association of Crioulo Lageano Cattle Breeders, Rua Presidente Nereu Ramos 7373, Andar 9 Sala 2, Lages, Santa Catarina, 88502-901, Brazil
| | - Vera Martins
- Brazilian Association of Crioulo Lageano Cattle Breeders, Rua Presidente Nereu Ramos 7373, Andar 9 Sala 2, Lages, Santa Catarina, 88502-901, Brazil
| | | | - André Melro Murad
- Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica - PqEB, PO Box 12 02372, Brasília, 70770-917, Brazil
| | - Angela Mehta
- Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica - PqEB, PO Box 12 02372, Brasília, 70770-917, Brazil
| | - Concepta McManus
- Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, 70910-900, Brazil.
| | - Alexandre Floriano Ramos
- Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica - PqEB, PO Box 12 02372, Brasília, 70770-917, Brazil
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Bastianetto E, de Oliveira DAA, McManus C, Bagolin DDJ, Leite RC, de Melo CB. Genetic material from buffalo and cattle: crucial importance in the formalization of bilateral trade between India and Brazil. Anim Reprod 2020; 17:e20200031. [PMID: 33791024 PMCID: PMC7995262 DOI: 10.1590/1984-3143-ar2020-0031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The trade in live animals between India and Brazil dates from the late nineteenth century when European travellers traded animals of Indian origin for display in zoos. Considering the origin of coffee and sugar cane, as well as the expertise related to mineral evaluation, we need to consider that India was involved in important economic cycles of Brazil, even indirectly. This virtuous flow of trade has been maintained and intensified throughout modern history, especially after these two nations gained political independence from their colonisers, thereby becoming independent in mercantile affairs. This paper addresses the main points related to the use of animals of Indian origin in Brazil. We revisit some of the historical aspects of the process of colonisation of Brazil, as well as the importation of animals from India. The restrictions imposed on this process due to the occurrence of diseases in cattle and buffalo in India will be examined. At the end of the text, emphasis will be given to the risks of introducing exotic diseases into Brazil.
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Affiliation(s)
- Eduardo Bastianetto
- Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | | | - Concepta McManus
- Programa de Pós-graduação em Ciências Animais, Universidade de Brasília, Brasília, DF, Brasil
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McManus C, Paiva SR, Caetano AR, Hermuche P, Guimarães RF, Carvalho Jr OA, Braga R, Souza Carneiro PL, Ferrugem-Moraes J, De Souza CJH, Faco O, Santos SA, Azevedo HC, De Araujo AM, Façanha DAE, Ianella P. Landscape genetics of sheep in Brazil using SNP markers. Small Rumin Res 2020. [DOI: 10.1016/j.smallrumres.2020.106239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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da Costa NS, da Silva MVGB, Panetto JCDC, Machado MA, Seixas L, Peripolli V, Guimarães RF, Carvalho OA, Vieira RA, McManus C. Spatial dynamics of the Girolando breed in Brazil: analysis of genetic integration and environmental factors. Trop Anim Health Prod 2020; 52:3869-3883. [PMID: 33094421 DOI: 10.1007/s11250-020-02426-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 09/24/2020] [Indexed: 11/24/2022]
Abstract
Brazil is one of the world's largest milk producers. Several scientific studies have been developed related to landscape analyses that combine genetic with landscape structure data. In the present study, we aimed to analyze the relationship between genetic, environmental, and socioeconomic aspects of production in Girolando cattle in Brazil, as well as verify the spatial patterns of its genetic diversity. Genetic values and accuracy of 46,289 animals were used as well as information from DNA of 310 Girolando animals. Canonic, discriminant, and cluster analyses were conducted in SAS® and K-means method in ArcGIS 10.3 software. The relationship between genetic and geographic distance was analyzed using different methods in software Alleles in Space®. Clusters with animals with higher genetic values for milk production are located in municipalities with lower gross domestic product, fewer family-based establishments, and lower human development index. These clusters are associated with regions with higher area planted with crops, lower percentage of pastures that were less degraded, higher humidity, lower temperature range, and lower normalized difference vegetation index (NDVI) values. The greater the geographical distance between groups of animals, the greater the genetic distance between them with a significant distinction over 504 km. There is high genetic heterogeneity among animals. From these results, it will be possible to develop methodologies for better evaluation of the animals within the production systems.
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Affiliation(s)
- Nathalia Silva da Costa
- Humanities Institute, University of Brasilia, Darcy Ribeiro Campus, Brasilia, DF, 70910-900, Brazil
| | | | | | - Marco Antonio Machado
- Embrapa Gado de Leite, Av. Eugênio do Nascimento, 610 - Aeroporto, Juiz de Fora, MG, 36038-330, Brazil
| | - Luiza Seixas
- Institute of Biology, University of Brasilia, Darcy Ribeiro Campus, Brasilia, DF, 70910-900,, Brazil
| | - Vanessa Peripolli
- Instituto Federal Catarinense - Campus Araquari, Araquari, SC, 89245-000, Brazil
| | - Renato Fontes Guimarães
- Humanities Institute, University of Brasilia, Darcy Ribeiro Campus, Brasilia, DF, 70910-900, Brazil
| | - Osmar Abilio Carvalho
- Humanities Institute, University of Brasilia, Darcy Ribeiro Campus, Brasilia, DF, 70910-900, Brazil
| | - Renata Augusto Vieira
- Institute of Biology, University of Brasilia, Darcy Ribeiro Campus, Brasilia, DF, 70910-900,, Brazil
| | - Concepta McManus
- Institute of Biology, University of Brasilia, Darcy Ribeiro Campus, Brasilia, DF, 70910-900,, Brazil.
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McManus C, Baeta Neves AA, Maranhão AQ, Souza Filho AG, Santana JM. International collaboration in Brazilian science: financing and impact. Scientometrics 2020; 125:2745-2772. [PMID: 33071387 PMCID: PMC7547822 DOI: 10.1007/s11192-020-03728-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2020] [Indexed: 11/30/2022]
Abstract
The study of international collaborations can help in understanding the benefits of such relationships and aid in developing national financing policies. In this paper, the international collaboration of Brazilian scientists was studied using SciVal® and Incites® database, looking at its effect on the universities, financing agencies and different areas of knowledge and research topic clusters. Cluster and principal component analyses of scientometric data were carried out. While the results confirmed known knowledge that international collaboration increases impact, this study shows that Brazilian researchers are contributing to prominent research topics worldwide, in all areas of knowledge. This finding is contrary to several points of view that identify Brazil as a regional and not an international partner in science. Important also to note the impact of Brazilian authors in international collaboration that is well above the world mean. The collaboration of Brazil with foreign partners brings benefits for both sides, creating the opportunity of Brazilian research access to financing from international agencies. Increases in measures of impact are also seen for both sides. Foreign partners likewise benefit from higher impact factors in the same topic cluster, when collaborating with Brazilian partners. Publishing open access in high impact journals is fundamental for maintaining Brazilian science at the forefront.
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Affiliation(s)
- Concepta McManus
- Institute of Biological Sciences, Universidade de Brasília, Brasilia, DF 70910-900 Brazil
| | | | | | - Antonio Gomes Souza Filho
- Departamento de Física, Centro de Ciências, Universidade Federal de Ceará, Fortaleza, Ceará 60440-900 Brazil
| | - Jaime Martins Santana
- Institute of Biological Sciences, Universidade de Brasília, Brasilia, DF 70910-900 Brazil
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Silva EC, McManus C, Piovezan U, Faria DA, Souza CA, Caetano AR, Paiva SR. Phylogeography of feral Monteiro pig in the Brazilian Pantanal Ecosystem. Genetica 2020; 148:183-193. [PMID: 32770285 DOI: 10.1007/s10709-020-00099-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 07/29/2020] [Indexed: 10/23/2022]
Abstract
The Monteiro is a feral pig found in the Brazilian Pantanal ecosystem. The goal of this research is to generate data and knolewdge related to animal populations wich can be used for management and development of an in vitro conservation program for animal resourses at Pantanal ecosystem. The present study evaluated animals sampled from 10 distinct locations within the region, using 19 microsatellite markers (N = 189) and the control region of mitochondrial DNA (mtDNA) (N = 392). Low genetic differences were found between populations with the microsatellite data. The FST range was between 0.009 and 0.063 (p-value < 0.05). The Mantel test corroborated with previous results, as low correlations between genetic and geographic distances were observed (r2 = 0.2309, p = 0.06). Bayesian analysis for genetic structure identification placed the Monteiro pigs into three main clusters (MOB, Pop 1 and all others Pantanal populations). Most of the Monteiro pigs share a single European haplotype as seen by mtDNA analyses. This haplotype is not exclusive, as it is shared with other swine populations (commercial and other locally adapted breeds). Monteiro populations from different geographic locations within Pantanal are not isolated and can be considered as a large unique population. Since animals roam freely to seek food and water, or even due to seasonal flooding of their habitat, the Monteiro populations presented absence of major genetic structure and evidence of high gene flow. These results can be used to create a management plan and in situ and ex situ conservation program for conservation and use of the Monteiro breed in the Pantanal ecosystem.
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Affiliation(s)
- Elizabete C Silva
- Faculdade de Agronomia E Medicina Veterinária, Instituto Central de Ciências, Campus Darcy Ribeiro, Universidade de Brasília, Asa Norte, Brasilia, DF, 70910-900, Brazil
| | - Concepta McManus
- Departamento de Ciências Fisiológicas, Instituto de Biologia, Campus Darcy Ribeiro, Universidade de Brasilia, Asa Norte, Brasilia, DF, 70910-900, Brazil
| | - Ubiratan Piovezan
- Embrapa Tabuleiros Costeiros, Av. Beira Mar, 3250 - Jardins, Aracaju, SE, 49025-040, Brazil
| | - Danielle A Faria
- Faculdade de Agronomia E Medicina Veterinária, Instituto Central de Ciências, Campus Darcy Ribeiro, Universidade de Brasília, Asa Norte, Brasilia, DF, 70910-900, Brazil
| | - Carla A Souza
- La Trobe University, Plenty Rd & Kingsbury Dr., Bundoora, VIC, 3086, Australia
| | - Alexandre R Caetano
- Embrapa Recursos Genéticos E Biotecnologia, Final W5 Norte, Brasília, DF, 70770-917, Brazil
| | - Samuel R Paiva
- Embrapa Recursos Genéticos E Biotecnologia, Final W5 Norte, Brasília, DF, 70770-917, Brazil.
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Paim TDP, Hay EHA, Wilson C, Thomas MG, Kuehn LA, Paiva SR, McManus C, Blackburn H. Genomic Breed Composition of Selection Signatures in Brangus Beef Cattle. Front Genet 2020; 11:710. [PMID: 32754198 PMCID: PMC7365941 DOI: 10.3389/fgene.2020.00710] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 06/11/2020] [Indexed: 12/13/2022] Open
Abstract
Cattle breeding routinely uses crossbreeding between subspecies (Bos taurus taurus and Bos taurus indicus) to form composite breeds, such as Brangus. These composite breeds provide an opportunity to identify recent selection signatures formed in the new population and evaluate the genomic composition of these regions of the genome. Using high-density genotyping, we first identified runs of homozygosity (ROH) and calculated genomic inbreeding. Then, we evaluated the genomic composition of the regions identified as selected (selective sweeps) using a chromosome painting approach. The genomic inbreeding increased at approximately 1% per generation after composite breed formation, showing the need of inbreeding control even in composite breeds. Three selected regions in Brangus were also identified as Angus selection signatures. Two regions (chromosomes 14 and 21) were identified as signatures of selection in Brangus and both founder breeds. Five of the 10 homozygous regions in Brangus were predominantly Angus in origin (probability >80%), and the other five regions had a mixed origin but always with Brahman contributing less than 50%. Therefore, genetic events, such as drift, selection, and complementarity, are likely shaping the genetic composition of founder breeds in specific genomic regions. Such findings highlight a variety of opportunities to better control the selection process and explore heterosis and complementarity at the genomic level in composite breeds.
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Affiliation(s)
- Tiago do Prado Paim
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Iporá, Brazil
- Universidade de Brasília, Brasília, Brazil
| | - El Hamidi A. Hay
- Fort Keogh Livestock and Range Research Laboratory, Agricultural Research Service, United States Department of Agriculture, Miles City, MO, United States
| | - Carrie Wilson
- National Animal Germplasm Program, National Laboratory for Genetic Resources Preservation, Agricultural Research Service, United States Department of Agriculture, Fort Collins, CO, United States
| | - Milt G. Thomas
- Department of Animal Sciences, Colorado State University, Fort Collins, CO, United States
| | - Larry A. Kuehn
- United States Meat Animal Research Center, Agricultural Research Service, United States Department of Agriculture, Clay Center, NE, United States
| | - Samuel R. Paiva
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil
| | | | - Harvey Blackburn
- National Animal Germplasm Program, National Laboratory for Genetic Resources Preservation, Agricultural Research Service, United States Department of Agriculture, Fort Collins, CO, United States
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Marques L, Matos A, Costa J, Silva C, Camargo Júnior R, McManus C, Peripolli V, Araújo C, Laureano M, Sales R, Marques J. Productive characteristics in dairy buffalo (Bubalus bubalis) in the Eastern Amazon. ARQ BRAS MED VET ZOO 2020. [DOI: 10.1590/1678-4162-11288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT The objective of this study was to determine factors affecting phenotypic characteristics related to milk production and reproductive efficiency of dairy buffalo. Phenotypic records of 2,459 Murrah, Mediterranean and crossbred buffaloes from the Embrapa Eastern Amazônia herd, from 1969 to 2013 were used. Traits included: total milk production during lactation (TMP), milk production corrected for 305 days (P305); cow weight at calving (CW), fat milk percentage (F), age at first calving (AFC), calving interval (CI), calf birth weight (BW), as well as lactation (LP) and service periods (SP). Most traits were affected by genetic group as well as year and season or interaction between them. Genetic group affected F, CI, SP and CW. Very young and older cows showed poorer production traits. There was interaction between season and year for F, CI and CW. Correlations traits were generally medium to low. The principal component analysis showed that higher fat milk percentage was associated with higher percentage of Murrah breed, longer lactation period and older cows. Phenotypic characteristics in buffaloes reared in the Brazilian Amazon were significantly affected by genetic and management factors. This information can be used to help build sustainable production systems for the region and guide farmer decisions.
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Paim TDP, Hay EHA, Wilson C, Thomas MG, Kuehn LA, Paiva SR, McManus C, Blackburn HD. Dynamics of genomic architecture during composite breed development in cattle. Anim Genet 2020; 51:224-234. [PMID: 31961956 PMCID: PMC7065137 DOI: 10.1111/age.12907] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/16/2019] [Accepted: 12/19/2019] [Indexed: 12/31/2022]
Abstract
Some livestock breeds face the challenge of reduced genetic variation, increased inbreeding depression owing to genetic drift and selection. Hybridization can reverse these processes and increase levels of productivity and adaptation to various environmental stressors. Samples from American Brangus were used to evaluate the indicine/taurine composition through nine generations (~45 years) after the hybridization process was completed. The purpose was to determine how hybridization alters allelic combinations of a breed over time when genetic factors such as selection and drift are operating. Furthermore, we explored genomic regions with deviations from the expected composition from the progenitor breeds and related these regions to traits under selection. The Brangus composition deviated from the theoretical expectation, defined by the breed association, of 62.5% taurine, showing taurine composition to be 70.4 ± 0.6%. Taurine and indicine proportion were not consistent across chromosomes. Furthermore, these non‐uniform areas were found to be associated with traits that were probably under selection such as intermuscular fat and average daily gain. Interestingly, the sex chromosomes were predominantly taurine, which could be due to the composite being formed particularly in the final cross that resulted in progeny designated as purebred Brangus. This work demonstrated the process of new breed formation on a genomic level. It suggests that factors like genetic drift, selection and complementarity shift the genetic architecture into a uniquely different population. These findings are important to better understand how hybridization and crossbreeding systems shape the genetic architecture of composite populations.
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Affiliation(s)
- T do P Paim
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Avenida Oeste n. 350, Iporá, 76.200-000, Brazil.,Universidade de Brasília, Asa Norte, Campus Darcy Ribeiro, ICC Sul, Brasília, 70.910-900, Brazil
| | - E H A Hay
- US Department of Agriculture, Fort Keogh Livestock and Range Research Laboratory, Agricultural Research Service, 243 Fort Keogh Road, Miles City, 59301, USA
| | - C Wilson
- US Department of Agriculture, National Laboratory for Genetic Resources Preservation, Agricultural Research Service, National Animal Germplasm Program, 1111 S Mason St., Fort Collins, 80521, USA
| | - M G Thomas
- Department of Animal Sciences, Colorado State University, 350 W. Pitkin St., Fort Collins, 80523-1171, USA
| | - L A Kuehn
- US Department of Agriculture, Agricultural Research Service, US Meat Animal Research Center, 844 Rd 313, Clay Center, 68933, USA
| | - S R Paiva
- Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, PqEB, Av. W5 Norte (final) Caixa Postal 02372, Brasília, 70.770-917, Brazil
| | - C McManus
- Universidade de Brasília, Asa Norte, Campus Darcy Ribeiro, ICC Sul, Brasília, 70.910-900, Brazil
| | - H D Blackburn
- US Department of Agriculture, National Laboratory for Genetic Resources Preservation, Agricultural Research Service, National Animal Germplasm Program, 1111 S Mason St., Fort Collins, 80521, USA
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