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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
15/09/2014 |
Actualizado : |
28/05/2020 |
Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
Autor : |
TARLERA, S.; GONNET, S.; IRISARRI, P.; MENES, J.; FERNÁNDEZ, A.; PAOLINO, G.; TRAVERS, D.; DEAMBROSI, E.; Méndez-Vilas, A. (Ed.). |
Afiliación : |
ENRIQUE GERMAN DEAMBROSI CHURRUT, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
Título : |
Nitrification and denitrification associated with N2O production in a temperate N-fertilized irrigated uruguayan rice field. |
Fecha de publicación : |
2008 |
Fuente / Imprenta : |
In: Modern multidisciplinary applied microbiology: Exploiting microbes and their interactions, 2008, Reino Unido: Wiley-VCH Verlag. p.416-420 |
DOI : |
10.1002/9783527611904.ch74 |
Idioma : |
Inglés |
Contenido : |
Uruguay is the seventh largest rice exporting country in the world. Nitrogen is the single most limiting factor for rice production. Microbial soil processes, e.g. nitrification, denitrification and mineralization, influence the fate of the ?mobile? N atom. There are gaps in the understanding of key processes that govern N cycling, availability and plant acquisition in irrigated rice systems. Nitrous oxide (N2O), a greenhouse gas, is produced as a by-product during nitrification and occurs as an intermediate during denitrification. The use of fertilizers with inhibitors of nitrification has been proposed as a mitigation strategy. This study showed that less than 7% of the total N2O emission from ENTEC®-fertilized soils, containing an inhibitor of nitrification (DMPP: 3.4-dimethylpyrazolephosphate) was due to nitrification. T-RFLP amoA analysis detected the presence of Nitrosomonas and Nitrosospira genera in urea-fertilized plots. |
Palabras claves : |
NITRIFICACION. |
Thesagro : |
ARROZ. |
Asunto categoría : |
F04 Fertilización |
Marc : |
LEADER 01787naa a2200253 a 4500 001 1050256 005 2020-05-28 008 2008 bl uuuu u00u1 u #d 024 7 $a10.1002/9783527611904.ch74$2DOI 100 1 $aTARLERA, S. 245 $aNitrification and denitrification associated with N2O production in a temperate N-fertilized irrigated uruguayan rice field.$h[electronic resource] 260 $c2008 520 $aUruguay is the seventh largest rice exporting country in the world. Nitrogen is the single most limiting factor for rice production. Microbial soil processes, e.g. nitrification, denitrification and mineralization, influence the fate of the ?mobile? N atom. There are gaps in the understanding of key processes that govern N cycling, availability and plant acquisition in irrigated rice systems. Nitrous oxide (N2O), a greenhouse gas, is produced as a by-product during nitrification and occurs as an intermediate during denitrification. The use of fertilizers with inhibitors of nitrification has been proposed as a mitigation strategy. This study showed that less than 7% of the total N2O emission from ENTEC®-fertilized soils, containing an inhibitor of nitrification (DMPP: 3.4-dimethylpyrazolephosphate) was due to nitrification. T-RFLP amoA analysis detected the presence of Nitrosomonas and Nitrosospira genera in urea-fertilized plots. 650 $aARROZ 653 $aNITRIFICACION 700 1 $aGONNET, S. 700 1 $aIRISARRI, P. 700 1 $aMENES, J. 700 1 $aFERNÁNDEZ, A. 700 1 $aPAOLINO, G. 700 1 $aTRAVERS, D. 700 1 $aDEAMBROSI, E. 700 1 $aMÉNDEZ-VILAS, A. 773 $tIn: Modern multidisciplinary applied microbiology: Exploiting microbes and their interactions, 2008, Reino Unido: Wiley-VCH Verlag. p.416-420
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INIA Treinta y Tres (TT) |
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
29/01/2024 |
Actualizado : |
29/01/2024 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
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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