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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
21/02/2014 |
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Actualizado : |
04/02/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
RAVAGNOLO, O.; MISZTAL, I. |
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Afiliación : |
OLGA RAVAGNOLO GUMILA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; I. MISZTAL, Dept. of Animal and Dairy Science, University of Georgia, Athens, GA, United States. |
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Título : |
Studies on genetics of heat tolerance in dairy cattle with reduced weather information via cluster analysis. |
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Fecha de publicación : |
2002 |
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Fuente / Imprenta : |
Journal of Dairy Science, June 2002, Volume 85, Issue 6, Pages 1586-1589. OPEN ACCESS. DOI: https://doi.org/10.3168/jds.S0022-0302(02)74228-8 |
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ISSN : |
0022-0302 |
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DOI : |
10.3168/jds.S0022-0302(02)74228-8 |
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Idioma : |
Inglés |
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Notas : |
Article history: |
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Contenido : |
ABSTRACT.
The objective of this study was to explore the possibility of reducing the number of weather stations for studies on genetics of heat tolerance in dairy cattle. The similarity of information from 21 Georgia weather stations was analyzed by cluster analysis. Two major clusters have been found, separating Georgia along the NE and SW line. One weather station was selected for each of the clusters based on the minimal distance to all the remaining weather stations and on completeness of the weather information. The production dataset consisted of 114,751 first-parity test-day records for milk on 14,297 Holsteins from 120 herds in Georgia. Analyses using a model for daily milk yield with temperature-humidity index classes and several other fixed effects showed no increase in error sum of squares when using only two weather stations. The threshold of heat stress was different for each of the two regions but the rate of decline after the threshold was similar. After accounting for different thresholds, the genetic component of heat tolerance for milk was higher with the two-station model. Genetic studies on or evaluation for heat tolerance based on information from a few carefully selected weather stations can be as accurate as those based on information from numerous such stations. |
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Palabras claves : |
Dairy; Heat stress; Random regressions. |
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Asunto categoría : |
L01 Ganadería |
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URL : |
https://www.journalofdairyscience.org/article/S0022-0302(02)74228-8/pdf
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Marc : |
LEADER 02029naa a2200205 a 4500
001 1012856
005 2020-02-04
008 2002 bl uuuu u00u1 u #d
022 $a0022-0302
024 7 $a10.3168/jds.S0022-0302(02)74228-8$2DOI
100 1 $aRAVAGNOLO, O.
245 $aStudies on genetics of heat tolerance in dairy cattle with reduced weather information via cluster analysis.$h[electronic resource]
260 $c2002
500 $aArticle history:
520 $aABSTRACT. The objective of this study was to explore the possibility of reducing the number of weather stations for studies on genetics of heat tolerance in dairy cattle. The similarity of information from 21 Georgia weather stations was analyzed by cluster analysis. Two major clusters have been found, separating Georgia along the NE and SW line. One weather station was selected for each of the clusters based on the minimal distance to all the remaining weather stations and on completeness of the weather information. The production dataset consisted of 114,751 first-parity test-day records for milk on 14,297 Holsteins from 120 herds in Georgia. Analyses using a model for daily milk yield with temperature-humidity index classes and several other fixed effects showed no increase in error sum of squares when using only two weather stations. The threshold of heat stress was different for each of the two regions but the rate of decline after the threshold was similar. After accounting for different thresholds, the genetic component of heat tolerance for milk was higher with the two-station model. Genetic studies on or evaluation for heat tolerance based on information from a few carefully selected weather stations can be as accurate as those based on information from numerous such stations.
653 $aDairy
653 $aHeat stress
653 $aRandom regressions
700 1 $aMISZTAL, I.
773 $tJournal of Dairy Science, June 2002, Volume 85, Issue 6, Pages 1586-1589. OPEN ACCESS. DOI: https://doi.org/10.3168/jds.S0022-0302(02)74228-8
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Registro original : |
INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
15/04/2021 |
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Actualizado : |
02/09/2022 |
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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 : |
MACHADO, M.; SCHILD, C.; PRELIASCO, M.; BALSERINI, A.; MEDEIROS, R.M.T.; BARROS, S.S.; RIET-CORREA, F. |
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Afiliación : |
MIZAEL MACHADO DA COSTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS SCHILD, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARCELA PRELIASCO, Departamento de Patobiología, División de Laboratorios Veterinarios, Ministerio de Ganadería, Agricultura y Pesca, Constituyente 1476, 11200 Montevideo, Departamento de Montevideo, Uruguay.; ALDANA BALSERINI, División Sanidad Animal, Zonal Paso de los Toros, Ministerio de Ganadería, Agricultura y Pesca, Tacuarembó, 25 de Mayo 175, 45000 Tacuarembó, Departamento de Tacuarembó, Uruguay.; ROSANE M.T. MEDEIROS, Hospital Veterinário, Centro de Saúde e Tecnologia Rural (CSTR), Campos de Patos, Universidade Federal de Campina Grande, Patos, PB 58700-000, Brazil.; SEVERO S. BARROS, Departamento de Patologia Veterinária, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS 97119-900, Brazil.; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./Graduate Program in Animal Science in the Tropics, Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia (UFBA), Brasil. |
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Título : |
Enzootic calcinosis in sheep in Uruguay: a brief review and report of two outbreaks. [Calcinose enzoótica em ovinos no Uruguai: revisão de literatura e descrição de dois surtos.]. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Pesquisa Veterinaria Brasileira, November 2020, Volume 40, Issue 11, Pages 831-836. OPEN ACCESS. Doi: http://dx.doi.org/10.1590/1678-5150-pvb-6766 |
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DOI : |
10.1590/1678-5150-pvb-6766 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received on August 8, 2020./Accepted for publication on August 24, 2020. Part of the Doctoral Thesis of the first author. |
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Contenido : |
ABSTRACT: This study aimed to do a brief review of enzootic calcinosis in sheep and to report two outbreaks of Nierembergia rivularis poisoning in sheep in Uruguay. The outbreaks occurred in farms located on an island (Outbreak A) and on the border (Outbreak B) of the Rincón del
Bonete lake. Sheep of all ages were affected, with the exception of suckling lambs. The first clinical signs occurred in early October, and deaths occurred from December to February. Outbreaks A and B had morbidity of 10%, and the mortality was 7.2% and 2.8% in Outbreaks
A and B, respectively. The clinical signs included weight loss, retracted abdomen, stiff gait, and kyphosis. An autopsy was performed on one sheep from each outbreak. Pulmonary and arterial calcification, nephrocalcinosis, and osteopetrosis were observed in gross and microscopic examination in both sheep. Thyroid C-cell hyperplasia and carcinoma was observed in sheep A. Sheep B showed thyroid C-cell hyperplasia and parathyroid chief cell atrophy. The parathyroid was not examined in the sheep from Outbreak A. The differential diagnosis of enzootic calcinosis in southern South America should consider four toxic plants in the Solanaceae family: Solanum glaucophyllum, Solanum stuckertii, Nierembergia veitchii, and Nierembergia rivularis.
RESUMO: Este trabalho faz uma breve revisão da calcinose enzoótica em ovinos e descreve dois surtos de intoxicação por Nierembergia rivularis em ovinos no Uruguai. Os surtos ocorreram em propriedades localizadas em uma ilha (Surto A), e nas margens (Surto B) do lago do Rincón del Bonete. Foram afetados ovinos de todas as idades, exceto cordeiros lactentes. Os primeiros sinais clínicos ocorreram no início de outubro e as mortes de dezembro a fevereiro. Morbidade de 10% foi observada nos Surtos A e B. A mortalidade foi de 7,2% e 2,8% nos Surtos A e B, respectivamente. Os sinais clínicos incluíram perda de peso, abdômen retraído, marcha rígida e cifose. Foram necropsiados um animal de cada rebanho. Observou-se mineralização arterial e pulmonar, nefrocalcinose e osteopetrose no exame macroscópico e histológico dos dois ovinos. Hiperplasia e carcinoma de células C da tireoide foram observados no ovino A. O ovino B apresentou hiperplasia de células C da tireoide e atrofia das células principais da paratireoide. As paratireoides do ovino A não foram examinadas. O diagnóstico diferencial da calcinose enzoótica no Sul da América do Sul deve considerar quatro plantas calcinogênicas da família Solanaceae: Solanum glaucophyllum, Solanum stuckertii, Nierembergia veitchii e Nierembergia rivularis. MenosABSTRACT: This study aimed to do a brief review of enzootic calcinosis in sheep and to report two outbreaks of Nierembergia rivularis poisoning in sheep in Uruguay. The outbreaks occurred in farms located on an island (Outbreak A) and on the border (Outbreak B) of the Rincón del
Bonete lake. Sheep of all ages were affected, with the exception of suckling lambs. The first clinical signs occurred in early October, and deaths occurred from December to February. Outbreaks A and B had morbidity of 10%, and the mortality was 7.2% and 2.8% in Outbreaks
A and B, respectively. The clinical signs included weight loss, retracted abdomen, stiff gait, and kyphosis. An autopsy was performed on one sheep from each outbreak. Pulmonary and arterial calcification, nephrocalcinosis, and osteopetrosis were observed in gross and microscopic examination in both sheep. Thyroid C-cell hyperplasia and carcinoma was observed in sheep A. Sheep B showed thyroid C-cell hyperplasia and parathyroid chief cell atrophy. The parathyroid was not examined in the sheep from Outbreak A. The differential diagnosis of enzootic calcinosis in southern South America should consider four toxic plants in the Solanaceae family: Solanum glaucophyllum, Solanum stuckertii, Nierembergia veitchii, and Nierembergia rivularis.
RESUMO: Este trabalho faz uma breve revisão da calcinose enzoótica em ovinos e descreve dois surtos de intoxicação por Nierembergia rivularis em ovinos no Uruguai. Os surtos ocorreram em propriedades... Presentar Todo |
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Palabras claves : |
ENZOOTIC CALCINOSIS; NIEREMBERGIA; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL; PLATAFORMA DE SALUD ANIMAL; SHEEP DISEASES. |
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Thesagro : |
OVINOS; URUGUAY. |
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Asunto categoría : |
E16 Enfermedades de los animales |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16676/1/Pesq.-Vet.-Bras.-4011p.831-836-November-2020.pdf
https://www.scielo.br/pdf/pvb/v40n11/1678-5150-pvb-40-11-831.pdf
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Marc : |
LEADER 03836naa a2200301 a 4500
001 1061983
005 2022-09-02
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1590/1678-5150-pvb-6766$2DOI
100 1 $aMACHADO, M.
245 $aEnzootic calcinosis in sheep in Uruguay$ba brief review and report of two outbreaks. [Calcinose enzoótica em ovinos no Uruguai: revisão de literatura e descrição de dois surtos.].$h[electronic resource]
260 $c2020
500 $aArticle history: Received on August 8, 2020./Accepted for publication on August 24, 2020. Part of the Doctoral Thesis of the first author.
520 $aABSTRACT: This study aimed to do a brief review of enzootic calcinosis in sheep and to report two outbreaks of Nierembergia rivularis poisoning in sheep in Uruguay. The outbreaks occurred in farms located on an island (Outbreak A) and on the border (Outbreak B) of the Rincón del Bonete lake. Sheep of all ages were affected, with the exception of suckling lambs. The first clinical signs occurred in early October, and deaths occurred from December to February. Outbreaks A and B had morbidity of 10%, and the mortality was 7.2% and 2.8% in Outbreaks A and B, respectively. The clinical signs included weight loss, retracted abdomen, stiff gait, and kyphosis. An autopsy was performed on one sheep from each outbreak. Pulmonary and arterial calcification, nephrocalcinosis, and osteopetrosis were observed in gross and microscopic examination in both sheep. Thyroid C-cell hyperplasia and carcinoma was observed in sheep A. Sheep B showed thyroid C-cell hyperplasia and parathyroid chief cell atrophy. The parathyroid was not examined in the sheep from Outbreak A. The differential diagnosis of enzootic calcinosis in southern South America should consider four toxic plants in the Solanaceae family: Solanum glaucophyllum, Solanum stuckertii, Nierembergia veitchii, and Nierembergia rivularis. RESUMO: Este trabalho faz uma breve revisão da calcinose enzoótica em ovinos e descreve dois surtos de intoxicação por Nierembergia rivularis em ovinos no Uruguai. Os surtos ocorreram em propriedades localizadas em uma ilha (Surto A), e nas margens (Surto B) do lago do Rincón del Bonete. Foram afetados ovinos de todas as idades, exceto cordeiros lactentes. Os primeiros sinais clínicos ocorreram no início de outubro e as mortes de dezembro a fevereiro. Morbidade de 10% foi observada nos Surtos A e B. A mortalidade foi de 7,2% e 2,8% nos Surtos A e B, respectivamente. Os sinais clínicos incluíram perda de peso, abdômen retraído, marcha rígida e cifose. Foram necropsiados um animal de cada rebanho. Observou-se mineralização arterial e pulmonar, nefrocalcinose e osteopetrose no exame macroscópico e histológico dos dois ovinos. Hiperplasia e carcinoma de células C da tireoide foram observados no ovino A. O ovino B apresentou hiperplasia de células C da tireoide e atrofia das células principais da paratireoide. As paratireoides do ovino A não foram examinadas. O diagnóstico diferencial da calcinose enzoótica no Sul da América do Sul deve considerar quatro plantas calcinogênicas da família Solanaceae: Solanum glaucophyllum, Solanum stuckertii, Nierembergia veitchii e Nierembergia rivularis.
650 $aOVINOS
650 $aURUGUAY
653 $aENZOOTIC CALCINOSIS
653 $aNIEREMBERGIA
653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL
653 $aPLATAFORMA DE SALUD ANIMAL
653 $aSHEEP DISEASES
700 1 $aSCHILD, C.
700 1 $aPRELIASCO, M.
700 1 $aBALSERINI, A.
700 1 $aMEDEIROS, R.M.T.
700 1 $aBARROS, S.S.
700 1 $aRIET-CORREA, F.
773 $tPesquisa Veterinaria Brasileira, November 2020, Volume 40, Issue 11, Pages 831-836. OPEN ACCESS. Doi: http://dx.doi.org/10.1590/1678-5150-pvb-6766
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