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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
02/12/2022 |
Actualizado : |
02/12/2022 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
DE LOS SANTOS, R.; GONZÁLEZ-REVELLO, Á.; MAJUL, L.; UMPIÉRREZ, A.; ALDROVANDI, A.; GIL, A.; HIRIGOYEN, D.; ZUNINO, P. |
Afiliación : |
ROSARIO DE LOS SANTOS, Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; ÁLVARO GONZÁLEZ-REVELLO, Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; LUCÍA MAJUL, Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; ANA UMPIÉRREZ, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay; ARIEL ALDROVANDI, Departamento de Calidad Alimentaria, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; ANDRÉS GIL, Departamento de Bioestadística e Informática, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; DARÍO JAVIER HIRIGOYEN TREVIN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; PABLO ZUNINO, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay. |
Título : |
Subclinical bovine mastitis associated with Staphylococcusspp. in eleven Uruguayan dairy farms. |
Fecha de publicación : |
2022 |
Fuente / Imprenta : |
Journal of Infection in Developing Countries, April 2022, Volume 16, Issue 4, Pages 630-637. OPEN ACCESS. doi: https://doi.org/10.3855/jidc.12960 |
ISSN : |
2036-6590 |
DOI : |
10.3855/jidc.12960 |
Idioma : |
Inglés |
Notas : |
Article history: Received 05 May 2020; Accepted 11 February 2022. -- Corresponding author: de los Santos, R.; Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, UdelaR Lasplaces 1550, Montevideo, Uruguay; email:rosario.rdelos@gmail.com -- LICENSE:
This work is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/ ) -- |
Contenido : |
ABSTRACT.- Introduction: Bovine mastitis is the most common disease affecting the dairy industry, with staphylococci being considered as one of the most significant and prevalent causes. This study aimed to assess the presence of staphylococcal subclinical mastitis (SCM) in Uruguayan dairy farms and to identify Staphylococcus aureus (SA) and non-aureus staphylococci (NAS) in milking cows. In addition, the antibiotic susceptibility of isolated staphylococci was evaluated. Methodology: We tested 546 apparently healthy milking cows from 11 farms for detecting SCM using the California Mastitis Test (CMT). The cows were not treated with antibiotics. CMT-positive samples were cultured, and colonies compatible with Staphylococcus spp. were further identified through molecular techniques. The susceptibility of the Staphylococcus spp. isolates against thirteen antibiotics was determined using the disk diffusion method. Results: Subclinical staphylococcal mastitis was present in almost all (82%) farms. SA (n = 39) was more common than NAS (n = 9) in the 48 samples tested. Isolates exhibited resistance to one, two, and even three different antibiotics. Resistance to penicillin was the most frequent among SA (23/39) and NAS (4/9). No staphylococci isolates exhibited resistance to cefoxitin, vancomycin, trimethoprim-sulfamethoxazole, erythromycin, or clindamycin. Conclusions: Staphylococcal SCM is one of the most common diseases in Uruguayan dairy farms. SA was the prevalent pathogen, however SA and NAS mastitis coexisted in many farms. NAS were identified and its distribution was similar to other countries. Penicillin had the highest and most frequent percentage of resistance. Copyright © 2022 de los Santos et al. MenosABSTRACT.- Introduction: Bovine mastitis is the most common disease affecting the dairy industry, with staphylococci being considered as one of the most significant and prevalent causes. This study aimed to assess the presence of staphylococcal subclinical mastitis (SCM) in Uruguayan dairy farms and to identify Staphylococcus aureus (SA) and non-aureus staphylococci (NAS) in milking cows. In addition, the antibiotic susceptibility of isolated staphylococci was evaluated. Methodology: We tested 546 apparently healthy milking cows from 11 farms for detecting SCM using the California Mastitis Test (CMT). The cows were not treated with antibiotics. CMT-positive samples were cultured, and colonies compatible with Staphylococcus spp. were further identified through molecular techniques. The susceptibility of the Staphylococcus spp. isolates against thirteen antibiotics was determined using the disk diffusion method. Results: Subclinical staphylococcal mastitis was present in almost all (82%) farms. SA (n = 39) was more common than NAS (n = 9) in the 48 samples tested. Isolates exhibited resistance to one, two, and even three different antibiotics. Resistance to penicillin was the most frequent among SA (23/39) and NAS (4/9). No staphylococci isolates exhibited resistance to cefoxitin, vancomycin, trimethoprim-sulfamethoxazole, erythromycin, or clindamycin. Conclusions: Staphylococcal SCM is one of the most common diseases in Uruguayan dairy farms. SA was the prevalent pathogen, ho... Presentar Todo |
Palabras claves : |
Antibiotic resistance; Dairy cattle; Staphylococci; URUGUAY. |
Asunto categoría : |
L20 Ecología animal |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16901/1/12960-Article-Text-150036-1-10-20220510.pdf
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Marc : |
LEADER 03044naa a2200289 a 4500 001 1063813 005 2022-12-02 008 2022 bl uuuu u00u1 u #d 022 $a2036-6590 024 7 $a10.3855/jidc.12960$2DOI 100 1 $aDE LOS SANTOS, R. 245 $aSubclinical bovine mastitis associated with Staphylococcusspp. in eleven Uruguayan dairy farms.$h[electronic resource] 260 $c2022 500 $aArticle history: Received 05 May 2020; Accepted 11 February 2022. -- Corresponding author: de los Santos, R.; Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, UdelaR Lasplaces 1550, Montevideo, Uruguay; email:rosario.rdelos@gmail.com -- LICENSE: This work is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/ ) -- 520 $aABSTRACT.- Introduction: Bovine mastitis is the most common disease affecting the dairy industry, with staphylococci being considered as one of the most significant and prevalent causes. This study aimed to assess the presence of staphylococcal subclinical mastitis (SCM) in Uruguayan dairy farms and to identify Staphylococcus aureus (SA) and non-aureus staphylococci (NAS) in milking cows. In addition, the antibiotic susceptibility of isolated staphylococci was evaluated. Methodology: We tested 546 apparently healthy milking cows from 11 farms for detecting SCM using the California Mastitis Test (CMT). The cows were not treated with antibiotics. CMT-positive samples were cultured, and colonies compatible with Staphylococcus spp. were further identified through molecular techniques. The susceptibility of the Staphylococcus spp. isolates against thirteen antibiotics was determined using the disk diffusion method. Results: Subclinical staphylococcal mastitis was present in almost all (82%) farms. SA (n = 39) was more common than NAS (n = 9) in the 48 samples tested. Isolates exhibited resistance to one, two, and even three different antibiotics. Resistance to penicillin was the most frequent among SA (23/39) and NAS (4/9). No staphylococci isolates exhibited resistance to cefoxitin, vancomycin, trimethoprim-sulfamethoxazole, erythromycin, or clindamycin. Conclusions: Staphylococcal SCM is one of the most common diseases in Uruguayan dairy farms. SA was the prevalent pathogen, however SA and NAS mastitis coexisted in many farms. NAS were identified and its distribution was similar to other countries. Penicillin had the highest and most frequent percentage of resistance. Copyright © 2022 de los Santos et al. 653 $aAntibiotic resistance 653 $aDairy cattle 653 $aStaphylococci 653 $aURUGUAY 700 1 $aGONZÁLEZ-REVELLO, Á. 700 1 $aMAJUL, L. 700 1 $aUMPIÉRREZ, A. 700 1 $aALDROVANDI, A. 700 1 $aGIL, A. 700 1 $aHIRIGOYEN, D. 700 1 $aZUNINO, P. 773 $tJournal of Infection in Developing Countries, April 2022, Volume 16, Issue 4, Pages 630-637. OPEN ACCESS. doi: https://doi.org/10.3855/jidc.12960
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INIA Las Brujas (LB) |
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
23/09/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
TORRES, D.; NUNES, A.C.P.; AGUIAR, A.; NIKICHUK, N.; CENTURIÓN, C.; CABRERA, M.; MORAES, M.L.T.; RESENDE, M.D.V.; SEBBENN, A.M. |
Afiliación : |
DIEGO GABRIEL TORRES DINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NATALIA ISABEL NIKICHUK BELL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Clonal selection of Eucalyptus grandis x Eucalyptus globulusfor productivity, adaptability, and stability, using SNP markers. |
Fecha de publicación : |
2016 |
Fuente / Imprenta : |
Silvae Genetica, 2016, v. 65, no. 2, p. 30-38. |
DOI : |
10.1515/sg-2016-0014 |
Idioma : |
Inglés |
Notas : |
Article history: Online erschienen: 27.10.2017; Erschienen im Druck: 01.12.2016. |
Contenido : |
In Uruguay, reforestations with Eucalyptus sp. is of fundamental importance to supply paper, pulp, and wood production. This study investigates genetic, productivity, stability, and adaptability parameters in the selection of Eucalypts grandis x Eucalyptus globulus full-sib hybrid clones. The study was conducted in a clonal test, repeated in two different soils types, in Rio Negro State, Uruguay. The population was characterized phenotypically for diameter at breast height (dbh) and genotyped
for SNP markers (EuCHIP60K chip). Mean dbh was similar between sites and the genotype?environment interaction was simple. We found high genotype correlation in clone performance between environments (0.708), indicating the possibility of selecting the same clones for both study locations. Mean heritability between clones (0.724), coefficient of individual genetic variation (10.9 %), and relative variation (0.916), suggest the possibility of gains (estimated at 3.1 % for both sites together) by selecting clones with higher growth rates. A total of 15,196 SNPs were used to confirm parentage and test a genomic selection model for dbh. The predictive capacity was negative (-0.15) given the small population size (78 individuals). The most adaptable material among the tested study sites presented higher values for SNP heterozygosity. Thus, using molecular markers to identify clones responsive to environmental changes can act as a powerful tool in Eucalyptus breeding programs. The hybrid population showed greater adaptability than E. globulus for this region. MenosIn Uruguay, reforestations with Eucalyptus sp. is of fundamental importance to supply paper, pulp, and wood production. This study investigates genetic, productivity, stability, and adaptability parameters in the selection of Eucalypts grandis x Eucalyptus globulus full-sib hybrid clones. The study was conducted in a clonal test, repeated in two different soils types, in Rio Negro State, Uruguay. The population was characterized phenotypically for diameter at breast height (dbh) and genotyped
for SNP markers (EuCHIP60K chip). Mean dbh was similar between sites and the genotype?environment interaction was simple. We found high genotype correlation in clone performance between environments (0.708), indicating the possibility of selecting the same clones for both study locations. Mean heritability between clones (0.724), coefficient of individual genetic variation (10.9 %), and relative variation (0.916), suggest the possibility of gains (estimated at 3.1 % for both sites together) by selecting clones with higher growth rates. A total of 15,196 SNPs were used to confirm parentage and test a genomic selection model for dbh. The predictive capacity was negative (-0.15) given the small population size (78 individuals). The most adaptable material among the tested study sites presented higher values for SNP heterozygosity. Thus, using molecular markers to identify clones responsive to environmental changes can act as a powerful tool in Eucalyptus breeding programs. The hybrid popul... Presentar Todo |
Palabras claves : |
EUCALYPTUS HYBRID; FOREST AND FORESTRY; FOREST BREEDING; FORESTACIÓN; GENE MARKERS; POPULATION GENETICS; QUANTITATIVE GENETICS. |
Thesagro : |
URUGUAY. |
Asunto categoría : |
K10 Producción forestal |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/7652/1/Silvae-Genetica.pdf
https://www.degruyter.com/downloadpdf/j/sg.2016.65.issue-2/sg-2016-0014/sg-2016-0014.pdf
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Marc : |
LEADER 02616naa a2200337 a 4500 001 1020438 005 2019-09-23 008 2016 bl uuuu u00u1 u #d 024 7 $a10.1515/sg-2016-0014$2DOI 100 1 $aTORRES, D. 245 $aClonal selection of Eucalyptus grandis x Eucalyptus globulusfor productivity, adaptability, and stability, using SNP markers.$h[electronic resource] 260 $c2016 500 $aArticle history: Online erschienen: 27.10.2017; Erschienen im Druck: 01.12.2016. 520 $aIn Uruguay, reforestations with Eucalyptus sp. is of fundamental importance to supply paper, pulp, and wood production. This study investigates genetic, productivity, stability, and adaptability parameters in the selection of Eucalypts grandis x Eucalyptus globulus full-sib hybrid clones. The study was conducted in a clonal test, repeated in two different soils types, in Rio Negro State, Uruguay. The population was characterized phenotypically for diameter at breast height (dbh) and genotyped for SNP markers (EuCHIP60K chip). Mean dbh was similar between sites and the genotype?environment interaction was simple. We found high genotype correlation in clone performance between environments (0.708), indicating the possibility of selecting the same clones for both study locations. Mean heritability between clones (0.724), coefficient of individual genetic variation (10.9 %), and relative variation (0.916), suggest the possibility of gains (estimated at 3.1 % for both sites together) by selecting clones with higher growth rates. A total of 15,196 SNPs were used to confirm parentage and test a genomic selection model for dbh. The predictive capacity was negative (-0.15) given the small population size (78 individuals). The most adaptable material among the tested study sites presented higher values for SNP heterozygosity. Thus, using molecular markers to identify clones responsive to environmental changes can act as a powerful tool in Eucalyptus breeding programs. The hybrid population showed greater adaptability than E. globulus for this region. 650 $aURUGUAY 653 $aEUCALYPTUS HYBRID 653 $aFOREST AND FORESTRY 653 $aFOREST BREEDING 653 $aFORESTACIÓN 653 $aGENE MARKERS 653 $aPOPULATION GENETICS 653 $aQUANTITATIVE GENETICS 700 1 $aNUNES, A.C.P. 700 1 $aAGUIAR, A. 700 1 $aNIKICHUK, N. 700 1 $aCENTURIÓN, C. 700 1 $aCABRERA, M. 700 1 $aMORAES, M.L.T. 700 1 $aRESENDE, M.D.V. 700 1 $aSEBBENN, A.M. 773 $tSilvae Genetica, 2016$gv. 65, no. 2, p. 30-38.
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