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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
26/09/2014 |
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Actualizado : |
18/03/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
IBÁÑEZ, F.; REZANO, A.; FREDES, A.; RODRIGUEZ, G.; REGGIO, A.; VILARÓ, F. |
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Afiliación : |
FACUNDO IBÁÑEZ SILVA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANABELA REZANO MATKOVICH, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; ALEJANDRO DAVID FREDES SIVOPLAS, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; GUSTAVO ADOLFO RODRIGUEZ TEXEIRA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; ADRIANA MARIA REGGIO BIGANZOLI, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; FRANCISCO LUIS VILARO PAREJA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Development of a rapid microplate assay for determining pungency in onion breeding program. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Acta Horticulturae (ISHS), 2012, no. 935, p. 61-65. |
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ISSN : |
0567-7572 |
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DOI : |
10.17660/ActaHortic.2012.935.8 |
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Idioma : |
Inglés |
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Notas : |
XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on New Developments in Plant Genetics and Breeding. |
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Contenido : |
ABSTRACT.
Onions with low levels of pungency and sweet flavor are becoming popular with consumers on an international level. The trend of greater demand in the international market will continue as sweet onions are introduced and promoted as a specialty item. Large-scale screening of onion bulbs for pungency requires a fast and cost-efficient method. The original method which was proposed by Schwimmer and Weston (1961), it is slow and tedious when large quantity of samples is analyzed in breeding programs. Moreover, it involves the use of dinitrophenylhydrazine, a chemical difficult to handle and very toxic. In our breeding program for developing low pungency cultivars, the screening is performed for more than 3000 bulbs annually. A 96-well microplate procedure for pyruvic acid analysis was developed in order to screen a large number of onion bulbs in our breeding rogram. The new method is based on the selective reaction of p-dimethylaminobenzaldehyde with enzymatically produced pyruvic acid. Analysis conditions were optimized with Response Surface Modelling using a Box-Behnken Design. With this method it is possible to determine the pyruvic acid content in 96 onion bulbs in just a few minutes. In a test using our cultivars, this method showed high correlations with spectrophotometric method (R2>0.95). |
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Thesagro : |
AJO. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02138naa a2200229 a 4500
001 1050611
005 2022-03-18
008 2012 bl uuuu u00u1 u #d
022 $a0567-7572
024 7 $a10.17660/ActaHortic.2012.935.8$2DOI
100 1 $aIBÁÑEZ, F.
245 $aDevelopment of a rapid microplate assay for determining pungency in onion breeding program.$h[electronic resource]
260 $c2012
500 $aXXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on New Developments in Plant Genetics and Breeding.
520 $aABSTRACT. Onions with low levels of pungency and sweet flavor are becoming popular with consumers on an international level. The trend of greater demand in the international market will continue as sweet onions are introduced and promoted as a specialty item. Large-scale screening of onion bulbs for pungency requires a fast and cost-efficient method. The original method which was proposed by Schwimmer and Weston (1961), it is slow and tedious when large quantity of samples is analyzed in breeding programs. Moreover, it involves the use of dinitrophenylhydrazine, a chemical difficult to handle and very toxic. In our breeding program for developing low pungency cultivars, the screening is performed for more than 3000 bulbs annually. A 96-well microplate procedure for pyruvic acid analysis was developed in order to screen a large number of onion bulbs in our breeding rogram. The new method is based on the selective reaction of p-dimethylaminobenzaldehyde with enzymatically produced pyruvic acid. Analysis conditions were optimized with Response Surface Modelling using a Box-Behnken Design. With this method it is possible to determine the pyruvic acid content in 96 onion bulbs in just a few minutes. In a test using our cultivars, this method showed high correlations with spectrophotometric method (R2>0.95).
650 $aAJO
700 1 $aREZANO, A.
700 1 $aFREDES, A.
700 1 $aRODRIGUEZ, G.
700 1 $aREGGIO, A.
700 1 $aVILARÓ, F.
773 $tActa Horticulturae (ISHS), 2012, no. 935, p. 61-65.
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Registro original : |
INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
29/01/2024 |
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Actualizado : |
29/01/2024 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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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. |
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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. |
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Título : |
Price determinants of beef bulls sold in livestock auctions. |
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Complemento del título : |
Animal production systems and agribusiness. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Revista Brasileira de Zootecnia, 2023, Volume 52, e20210227. https://doi.org/10.37496/rbz5220210227 -- OPEN ACCESS. |
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ISSN : |
1516-3598; e-ISSN 1806-9290 |
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DOI : |
10.37496/rbz5220210227 |
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Idioma : |
Inglés |
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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/). |
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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 |
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Palabras claves : |
Animal production; Beef cattle; Marketing; Phenotypic variation; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA. |
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Asunto categoría : |
L01 Ganadería |
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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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