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| 1. |  | SPOHR, R.B.; CARLESSO, R.; GARCIA, C.; GARCÍA PRÉCHAC, F.; GARCÍA PETILLO, M. Runoff modeling from soil physical characteristics in different places in Uruguay. [Modelagem do escoamento superficial a partir das características físicas de alguns solos do Uruguai.] Ciencia Rural, January 2009, Volume 39, Issue 1, January 2009, Pages 74-81. OPEN ACCESS. Article history: Recebido para publicação 11 Decembro 2007 / Aprovado em 20 Agosto 2008.| Biblioteca(s): INIA Las Brujas. |
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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
15/06/2021 |
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Actualizado : |
15/06/2021 |
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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 : |
DE SOUZA TEIXEIRA, O.; KUCZYNSKI DA ROCHA ,M.; GIL SESSIM, A.; DEZORDI SARTORI. E.; MACHADO DA ROSA, Y.; MUNIZ DE OLIVEIRA, M.C.; ABUD LIMA, J.; CANOZZI, M.E.A.; URDAPILLETA TAROUCO, J.; DE FARIA VALLE, S.; MCMANUS, C.; BARCELLOS, J.O.J. |
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Afiliación : |
ODILENE DE SOUZA TEIXEIRA, Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil.; MARCELA KUCZYNSKI DA ROCHA, Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil; AMIR GIL SESSIM, Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil.; EVERTON DEZORDI SARTORI, Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil.; YAGO MACHADO DA ROSA, Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil.; MARIA CAROLINA MUNIZ DE OLIVEIRA, Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil.; JULIA ABUD LIMA, Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil.; MARÍA EUGENIA ANDRIGHETTO CANOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JAIME URDAPILLETA TAROUCO, Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil.; STELLA DE FARIA VALLE, Department of Pathology and Veterinary Clinic, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, RS, Brazil.; CONCEPTA MCMANUS, Institute of Biological Sciences, Universidade de Brasília, 70910-900 Brasília, DF, Brazi; JÚLIO OTÁVIO JARDIM BARCELLOS, Department of Science Animal, Universidade Federal do Rio Grande do Sul, Ave. Bento Gonçalves, 91540000 Porto Alegre, Brazil. |
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Título : |
Weaning at 30, 75 and 180 days: Comparison between immune responses of beef calves. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Research in Veterinary Science, September 2021, Volume 138, Pages 53-61. Doi: https://doi.org/10.1016/j.rvsc.2021.06.002 |
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DOI : |
10.1016/j.rvsc.2021.06.002 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 11 January 2021/ Revised 10 May 2021/ Accepted 1 June 2021/ Available online 2 June 2021. |
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Contenido : |
ABSTRACT: The interruption of the maternal-filial bond in young calves can alter the physiological responses due to increased stress at this moment. Therefore, we aimed to analyze the association between age at weaning and the immune responses of 64 beef calves weaned abruptly. The animals were distributed in three weaning (W) treatments: hyper-early (W30), early (W75) and conventional (W180). The treatments agree with the weaning ages used in cow-calf systems in South America. Blood samples were collected of all experimental animals on the day of weaning and days 1, 2 and 7 post-weaning day of the three treatments. Blood samples were used to analyze hematological variables, total plasma proteins (TPP), fibrinogen, serum amyloid A protein (SAA) and
cortisol. The variables analyzed were influenced by the sampling day (P < 0.001) and the calf gender (P < 0.05), and an interaction between treatment x sampling day was observed. Over the study period, high serum cortisol levels were observed for W30 calves. The serum amyloid A protein was significantly influenced by sampling day. When compared to W180 calves, W30 and W75 animals showed prolonged concentrations in plasma fibrinogen.
In addition, they presented neutrophilia and lymphopenia during the 180?187 days period, which resulted in a greater neutrophil:lymphocyte ratio (N:L ratio). Calf gender resulted in changes in the number of blood leukocytes (P < 0.05). This result provides an alert for weaning at an early age, indicating that different management strategies must be tested to minimize physiological instabilities in critical periods of the life of animals. MenosABSTRACT: The interruption of the maternal-filial bond in young calves can alter the physiological responses due to increased stress at this moment. Therefore, we aimed to analyze the association between age at weaning and the immune responses of 64 beef calves weaned abruptly. The animals were distributed in three weaning (W) treatments: hyper-early (W30), early (W75) and conventional (W180). The treatments agree with the weaning ages used in cow-calf systems in South America. Blood samples were collected of all experimental animals on the day of weaning and days 1, 2 and 7 post-weaning day of the three treatments. Blood samples were used to analyze hematological variables, total plasma proteins (TPP), fibrinogen, serum amyloid A protein (SAA) and
cortisol. The variables analyzed were influenced by the sampling day (P < 0.001) and the calf gender (P < 0.05), and an interaction between treatment x sampling day was observed. Over the study period, high serum cortisol levels were observed for W30 calves. The serum amyloid A protein was significantly influenced by sampling day. When compared to W180 calves, W30 and W75 animals showed prolonged concentrations in plasma fibrinogen.
In addition, they presented neutrophilia and lymphopenia during the 180?187 days period, which resulted in a greater neutrophil:lymphocyte ratio (N:L ratio). Calf gender resulted in changes in the number of blood leukocytes (P < 0.05). This result provides an alert for weaning at an early age, indica... Presentar Todo |
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Palabras claves : |
Age at weaning; Beef cattle; Cortisol; Hematology; Stress. |
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Thesagro : |
GANADO DE CARNE. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 02824naa a2200349 a 4500
001 1062139
005 2021-06-15
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1016/j.rvsc.2021.06.002$2DOI
100 1 $aDE SOUZA TEIXEIRA, O.
245 $aWeaning at 30, 75 and 180 days$bComparison between immune responses of beef calves.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 11 January 2021/ Revised 10 May 2021/ Accepted 1 June 2021/ Available online 2 June 2021.
520 $aABSTRACT: The interruption of the maternal-filial bond in young calves can alter the physiological responses due to increased stress at this moment. Therefore, we aimed to analyze the association between age at weaning and the immune responses of 64 beef calves weaned abruptly. The animals were distributed in three weaning (W) treatments: hyper-early (W30), early (W75) and conventional (W180). The treatments agree with the weaning ages used in cow-calf systems in South America. Blood samples were collected of all experimental animals on the day of weaning and days 1, 2 and 7 post-weaning day of the three treatments. Blood samples were used to analyze hematological variables, total plasma proteins (TPP), fibrinogen, serum amyloid A protein (SAA) and cortisol. The variables analyzed were influenced by the sampling day (P < 0.001) and the calf gender (P < 0.05), and an interaction between treatment x sampling day was observed. Over the study period, high serum cortisol levels were observed for W30 calves. The serum amyloid A protein was significantly influenced by sampling day. When compared to W180 calves, W30 and W75 animals showed prolonged concentrations in plasma fibrinogen. In addition, they presented neutrophilia and lymphopenia during the 180?187 days period, which resulted in a greater neutrophil:lymphocyte ratio (N:L ratio). Calf gender resulted in changes in the number of blood leukocytes (P < 0.05). This result provides an alert for weaning at an early age, indicating that different management strategies must be tested to minimize physiological instabilities in critical periods of the life of animals.
650 $aGANADO DE CARNE
653 $aAge at weaning
653 $aBeef cattle
653 $aCortisol
653 $aHematology
653 $aStress
700 1 $aKUCZYNSKI DA ROCHA ,M.
700 1 $aGIL SESSIM, A.
700 1 $aDEZORDI SARTORI. E.
700 1 $aMACHADO DA ROSA, Y.
700 1 $aMUNIZ DE OLIVEIRA, M.C.
700 1 $aABUD LIMA, J.
700 1 $aCANOZZI, M.E.A.
700 1 $aURDAPILLETA TAROUCO, J.
700 1 $aDE FARIA VALLE, S.
700 1 $aMCMANUS, C.
700 1 $aBARCELLOS, J.O.J.
773 $tResearch in Veterinary Science, September 2021, Volume 138, Pages 53-61. Doi: https://doi.org/10.1016/j.rvsc.2021.06.002
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