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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
29/01/2024 |
Actualizado : |
29/01/2024 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
LOPES, J.F.; CANOZZI, M.E.A.; GONÇALVES, T.L.; DA ROCHA, M.K.; SARTORI, E.D.; SESSIM, A.G.; DE PAULA PEREIRA, I.; DE AGUIAR, L.K.; PAPARAS, D.; MENEGASSI, S.R.O.; KOETZ, C.; OAIGEN, R.P.; ZAGO, D.; BARCELLOS, J.O.J. |
Afiliación : |
JUSECLÉIA FERREIRA LOPES, Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia, RS, Porto Alegre, Brazil; MARÍA EUGENIA ANDRIGHETTO CANOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; THAÍS LOPES GONÇALVES, Universidade Federal do Pampa, RS, Uruguaiana, Brazil; MARCELA KUCZYNSKI DA ROCHA, Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia, RS, Porto Alegre, Brazil; EVERTON DEZORDI SARTORI, Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia, RS, Porto Alegre, Brazil; AMIR GIL SESSIM, Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia, RS, Porto Alegre, Brazil; IZABELA DE PAULA PEREIRA, Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia, RS, Porto Alegre, Brazil; LUIS KLUWE DE AGUIAR, Harper Adams University, Department of Food Science and Agrifood Supply Chain Management, Shropshire, Newport, United Kingdom; DIMITRIOS PAPARAS, Harper Adams University, Food, Land and Agribusiness Management Department, Shropshire, Newport, United Kingdom; SILVIO RENATO OLIVEIRA MENEGASSI, Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia, RS, Porto Alegre, Brazil; CELSO KOETZ, Universidade Norte do Paraná, PR, Arapongas, Brazil; RICARDO PEDROSO OAIGEN, Universidade Federal do Pampa, RS, Uruguaiana, Brazil; DANIELE ZAGO, Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia, RS, Porto Alegre, Brazil; JÚLIO OTÁVIO JARDIM BARCELLOS, Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia, RS, Porto Alegre, Brazil. |
Título : |
Price determinants of beef bulls sold in livestock auctions. |
Complemento del título : |
Animal production systems and agribusiness. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
Revista Brasileira de Zootecnia, 2023, Volume 52, e20210227. https://doi.org/10.37496/rbz5220210227 -- OPEN ACCESS. |
ISSN : |
1516-3598; e-ISSN 1806-9290 |
DOI : |
10.37496/rbz5220210227 |
Idioma : |
Inglés |
Notas : |
Article history: Received 17 December 2021, Accepted 2 February 2023, Publication in this collection 09 October 2023, Date of issue 2023. -- Document type: Article Gold Open Access. -- Correspondence: Barcellos, J.O.J.; Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia, RS, Porto Alegre, Brazil; email:julio.barcellos@ufrgs.br -- Funding: The authors are grateful for the financial support of the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). -- License: This is an open access article distributed under the terms of the
Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/). |
Contenido : |
ABSTRACT.- The main objective of this study was to evaluate the effects of phenotypic, genotypic, and auction characteristics that may influence the selling prices of bulls. Data from 1,540 Braford and 1,179 Brangus bulls sold at auctions in the state of Rio Grande do Sul, Brazil, were collected and evaluated individually. Body condition score (BCS), muscularity, frame, foreskin size, presence or absence of horns, and data regarding the auction such as name/venue, event edition, forms of payment, among others, were considered. Information such as weight at the time of sale, scrotal circumference (SC), expected profit differences, selection indexes, and date of birth were collected from the catalogs supplied at the auctions. To obtain the influence of the selected explanatory variables throughout the conditional distribution of bull prices, a quantile regression was used, and the quantiles were established as follows: 10th, 25th, 50th, 75th, and 90th. The buyers of Braford and Brangus bulls valued characteristics such as age, weight, and SC in relation to frame, muscularity, BCS, and foreskin size. In addition, the price behavior at different auctions was positively related to the operation time of the auction in this market and with the reputation of the seller. Regarding genetic variables of Brangus bulls, these had little or no influence on the selling price. There was a positive influence on the weaning index in the 90th quantile and on the final index in the 50th and 75th quantiles. Buyers of synthetic bull breeds at auctions value the phenotypic characteristics of bulls more than they do genetic characteristics, which may not reflect permanent gains in the cattle herd. © This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. MenosABSTRACT.- The main objective of this study was to evaluate the effects of phenotypic, genotypic, and auction characteristics that may influence the selling prices of bulls. Data from 1,540 Braford and 1,179 Brangus bulls sold at auctions in the state of Rio Grande do Sul, Brazil, were collected and evaluated individually. Body condition score (BCS), muscularity, frame, foreskin size, presence or absence of horns, and data regarding the auction such as name/venue, event edition, forms of payment, among others, were considered. Information such as weight at the time of sale, scrotal circumference (SC), expected profit differences, selection indexes, and date of birth were collected from the catalogs supplied at the auctions. To obtain the influence of the selected explanatory variables throughout the conditional distribution of bull prices, a quantile regression was used, and the quantiles were established as follows: 10th, 25th, 50th, 75th, and 90th. The buyers of Braford and Brangus bulls valued characteristics such as age, weight, and SC in relation to frame, muscularity, BCS, and foreskin size. In addition, the price behavior at different auctions was positively related to the operation time of the auction in this market and with the reputation of the seller. Regarding genetic variables of Brangus bulls, these had little or no influence on the selling price. There was a positive influence on the weaning index in the 90th quantile and on the final index in the 50th and 75t... Presentar Todo |
Palabras claves : |
Animal production; Beef cattle; Marketing; Phenotypic variation; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA. |
Asunto categoría : |
L01 Ganadería |
URL : |
https://rbz.org.br/wp-content/uploads/articles_xml/1806-9290-rbz-52-e20210227/1806-9290-rbz-52-e20210227.pdf
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Marc : |
LEADER 03749naa a2200373 a 4500 001 1064443 005 2024-01-29 008 2023 bl uuuu u00u1 u #d 022 $a1516-3598; e-ISSN 1806-9290 024 7 $a10.37496/rbz5220210227$2DOI 100 1 $aLOPES, J.F. 245 $aPrice determinants of beef bulls sold in livestock auctions.$h[electronic resource] 260 $c2023 500 $aArticle history: Received 17 December 2021, Accepted 2 February 2023, Publication in this collection 09 October 2023, Date of issue 2023. -- Document type: Article Gold Open Access. -- Correspondence: Barcellos, J.O.J.; Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia, RS, Porto Alegre, Brazil; email:julio.barcellos@ufrgs.br -- Funding: The authors are grateful for the financial support of the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). -- License: This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/). 520 $aABSTRACT.- The main objective of this study was to evaluate the effects of phenotypic, genotypic, and auction characteristics that may influence the selling prices of bulls. Data from 1,540 Braford and 1,179 Brangus bulls sold at auctions in the state of Rio Grande do Sul, Brazil, were collected and evaluated individually. Body condition score (BCS), muscularity, frame, foreskin size, presence or absence of horns, and data regarding the auction such as name/venue, event edition, forms of payment, among others, were considered. Information such as weight at the time of sale, scrotal circumference (SC), expected profit differences, selection indexes, and date of birth were collected from the catalogs supplied at the auctions. To obtain the influence of the selected explanatory variables throughout the conditional distribution of bull prices, a quantile regression was used, and the quantiles were established as follows: 10th, 25th, 50th, 75th, and 90th. The buyers of Braford and Brangus bulls valued characteristics such as age, weight, and SC in relation to frame, muscularity, BCS, and foreskin size. In addition, the price behavior at different auctions was positively related to the operation time of the auction in this market and with the reputation of the seller. Regarding genetic variables of Brangus bulls, these had little or no influence on the selling price. There was a positive influence on the weaning index in the 90th quantile and on the final index in the 50th and 75th quantiles. Buyers of synthetic bull breeds at auctions value the phenotypic characteristics of bulls more than they do genetic characteristics, which may not reflect permanent gains in the cattle herd. © This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 653 $aAnimal production 653 $aBeef cattle 653 $aMarketing 653 $aPhenotypic variation 653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA 700 1 $aCANOZZI, M.E.A. 700 1 $aGONÇALVES, T.L. 700 1 $aDA ROCHA, M.K. 700 1 $aSARTORI, E.D. 700 1 $aSESSIM, A.G. 700 1 $aDE PAULA PEREIRA, I. 700 1 $aDE AGUIAR, L.K. 700 1 $aPAPARAS, D. 700 1 $aMENEGASSI, S.R.O. 700 1 $aKOETZ, C. 700 1 $aOAIGEN, R.P. 700 1 $aZAGO, D. 700 1 $aBARCELLOS, J.O.J. 773 $tRevista Brasileira de Zootecnia, 2023, Volume 52, e20210227. https://doi.org/10.37496/rbz5220210227 -- OPEN ACCESS.
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INIA Las Brujas (LB) |
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Biblioteca (s) : |
INIA La Estanzuela; INIA Tacuarembó; INIA Treinta y Tres. |
Fecha actual : |
21/02/2014 |
Actualizado : |
06/06/2022 |
Autor : |
KOHLI, M.M.; FRANCIS, M. (Ed.). |
Afiliación : |
MAN MOHAN KOHLI; MARTHA FRANCIS. |
Título : |
Application of biotechnologies to wheat breeding. Proceedings of a conference at La Estanzuela, Uruguay. November 19-20, 1998. |
Fecha de publicación : |
2000 |
Fuente / Imprenta : |
Montevideo (Uruguay): Instituto Nacional de Investigación Agropecuaria; Centro Internacional de Mejoramiento de Maíz y Trigo, 2000. |
Páginas : |
175 p. |
ISBN : |
9974-7586-1-0 |
Idioma : |
Español Inglés |
Contenido : |
The application of biotechn'ology to crop improvement has been the focus of much research around the world. Tissue culture and selection of somaclonal variation were developed many years ago, followed more recently by molecular markers and genetic engineering. This meeting focused on providing updates on the actual successes to date on the application of several areas of biotechnology to wheat improvement. What is clear is that there continues to be optimism regarding the potential for biotechnology to be applied to wheat improvement. It is also noteworthy that as was predicted by many scientists, many approaches are proving more difficult in wheat than in other crops. Molecular markers, for example, are difficult to apply routinely given the large genome, hexaploid genetics, and lower levels of polymorphisms. New marker systems such as AFLPs and microsatellites are an improvement over previous RFLPs, but still require significant investments to achieve similar results possible in other, more amenable species. What is encouraging are the successes to identify the genetics of complex traits in wheat such as quality, Fusarium and rust resistance. Some of these will surely provide useful applications in wheat improvement and all mapping efforts provide critical genetic information for further studies at the gene level. These will be increasingly important as genomic approaches (gene expression, proteomics, etc.) become available and are applied to wheat. In many ways, these latest genomics approaches should be more 'genome independent' and thus readily applicable to large, complex genome species such as wheat. Coupled with the relatively easy ability to produce doubled haploids, wheat may prove to be an extremely important species for genomic studies. MenosThe application of biotechn'ology to crop improvement has been the focus of much research around the world. Tissue culture and selection of somaclonal variation were developed many years ago, followed more recently by molecular markers and genetic engineering. This meeting focused on providing updates on the actual successes to date on the application of several areas of biotechnology to wheat improvement. What is clear is that there continues to be optimism regarding the potential for biotechnology to be applied to wheat improvement. It is also noteworthy that as was predicted by many scientists, many approaches are proving more difficult in wheat than in other crops. Molecular markers, for example, are difficult to apply routinely given the large genome, hexaploid genetics, and lower levels of polymorphisms. New marker systems such as AFLPs and microsatellites are an improvement over previous RFLPs, but still require significant investments to achieve similar results possible in other, more amenable species. What is encouraging are the successes to identify the genetics of complex traits in wheat such as quality, Fusarium and rust resistance. Some of these will surely provide useful applications in wheat improvement and all mapping efforts provide critical genetic information for further studies at the gene level. These will be increasingly important as genomic approaches (gene expression, proteomics, etc.) become available and are applied to wheat. In many ways, these lat... Presentar Todo |
Palabras claves : |
BIOTECHNOLOGY; GENETIC TRANSFORMATION; MOLECULAR MARKERS; PLANT BREEDING; RESEARCH PROYECTS; TRITICUM AESTIVUM. |
Thesagro : |
ARGENTINA; BIOTECNOLOGIA; BRASIL; FITOMEJORAMIENTO; MARCADORES MOLECULARES; MEXICO; PROYECTOS DE INVESTIGACION; SUD AMERICA; TRANSFORMACION GENETICA; TRIGO; TRITICUM AESTIVUM; URUGUAY; USA. |
Asunto categoría : |
-- F30 Genética vegetal y fitomejoramiento |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/5843/1/RBI-5022-Application.pdf
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Marc : |
LEADER 02973nam a2200373 a 4500 001 1055271 005 2022-06-06 008 2000 bl uuuu u00u1 u #d 020 $a9974-7586-1-0 100 1 $aKOHLI, M.M. 245 $aApplication of biotechnologies to wheat breeding. Proceedings of a conference at La Estanzuela, Uruguay. November 19-20, 1998. 260 $aMontevideo (Uruguay): Instituto Nacional de Investigación Agropecuaria; Centro Internacional de Mejoramiento de Maíz y Trigo$c2000 300 $a175 p. 520 $aThe application of biotechn'ology to crop improvement has been the focus of much research around the world. Tissue culture and selection of somaclonal variation were developed many years ago, followed more recently by molecular markers and genetic engineering. This meeting focused on providing updates on the actual successes to date on the application of several areas of biotechnology to wheat improvement. What is clear is that there continues to be optimism regarding the potential for biotechnology to be applied to wheat improvement. It is also noteworthy that as was predicted by many scientists, many approaches are proving more difficult in wheat than in other crops. Molecular markers, for example, are difficult to apply routinely given the large genome, hexaploid genetics, and lower levels of polymorphisms. New marker systems such as AFLPs and microsatellites are an improvement over previous RFLPs, but still require significant investments to achieve similar results possible in other, more amenable species. What is encouraging are the successes to identify the genetics of complex traits in wheat such as quality, Fusarium and rust resistance. Some of these will surely provide useful applications in wheat improvement and all mapping efforts provide critical genetic information for further studies at the gene level. These will be increasingly important as genomic approaches (gene expression, proteomics, etc.) become available and are applied to wheat. In many ways, these latest genomics approaches should be more 'genome independent' and thus readily applicable to large, complex genome species such as wheat. Coupled with the relatively easy ability to produce doubled haploids, wheat may prove to be an extremely important species for genomic studies. 650 $aARGENTINA 650 $aBIOTECNOLOGIA 650 $aBRASIL 650 $aFITOMEJORAMIENTO 650 $aMARCADORES MOLECULARES 650 $aMEXICO 650 $aPROYECTOS DE INVESTIGACION 650 $aSUD AMERICA 650 $aTRANSFORMACION GENETICA 650 $aTRIGO 650 $aTRITICUM AESTIVUM 650 $aURUGUAY 650 $aUSA 653 $aBIOTECHNOLOGY 653 $aGENETIC TRANSFORMATION 653 $aMOLECULAR MARKERS 653 $aPLANT BREEDING 653 $aRESEARCH PROYECTS 653 $aTRITICUM AESTIVUM 700 1 $aFRANCIS, M.
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