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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
22/07/2018 |
Actualizado : |
12/02/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
ROMAN, L.; SARAVIA, C.; ASTIGARRAGA, L.; BENTANCUR, O.; LA MANNA, A. |
Afiliación : |
LORENA CAROLINA ROMAN GAY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CELMIRA SARAVIA, Universidad de la República (UdelaR)/ Facultad de Agronomía; LAURA ASTIGARRAGA, Universidad de la República (UdelaR)/ Facultad de Agronomía; OSCAR BENTANCUR, Universidad de la República (UdelaR)/ Facultad de Agronomía; ALEJANDRO FRANCISCO LA MANNA ALONSO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Shade access in combination with sprinkling and ventilation effects performance of Holstein cows in early and late lactation. |
Fecha de publicación : |
2019 |
Fuente / Imprenta : |
Animal Production Science, 2019, Volume 59, Issue 2, Pages 216-224. Doi: https://doi.org/10.1071/AN16571 |
ISSN : |
1836-0939 |
DOI : |
10.1071/AN16571 |
Idioma : |
Inglés |
Notas : |
Article history: Submitted: 19 August 2016 / Accepted: 15 September 2017 / Published online: 15 December 2017. |
Contenido : |
Abstract-
The negative effect of heat stress on dairy cows, with a temperature humidity index (THI) over 72, has been extensively studied. However, there are few studies on THI values under 72 that compare the effect of heat stress in different lactation stages. The objective of this study was to determine the heat stress effect on two lactation stages with a THI below the threshold 72. Thirty-nine multiparous, non-pregnant Holstein cows with more than 30 kg/cow.day of solid-corrected milk were used in a randomised complete block design to evaluate six treatments. The experimental design had a 3 by 2 factorial arrangement with three heat stress mitigation strategies: No shade (CON), access to shade only, and access to shade combined with sprinkling and ventilation, and two stages of lactation: early (S1) and late (S2), 12 ± 10.3 and 201 ± 45.8 days in milk respectively, for a duration of 81 consecutive days. All treatments, except CON had access to artificial shade from 0900 hours to 0500 hours next day. From 0500 hours to 0900 hours all cows were managed together in a grazing session. Additionally, sprinkling and ventilation cows had two 30-min sessions of ventilation and spray (0900 hours, 1530 hours). The average THI was 70.1 ± 4.46 (minimum THI: 60.4? maximum THI: 81.7) and the average hours above 72 were 7.8 ± 5.98. Animals in S1 presented higher solids-corrected milk reduction (P < 0.0001? 5.4 and 1.9 kg/cow.day), and protein yield (<0.0001? 0.13 and 0.54 kg/cow.day) than animals in S2 when shade was not allowed (CON). It was concluded that under these conditions, animal productivity is more negatively affected in early lactation animals. The use of shade with or without spray and ventilation mitigates heat stress effects on both stages of lactation.
© CSIRO. MenosAbstract-
The negative effect of heat stress on dairy cows, with a temperature humidity index (THI) over 72, has been extensively studied. However, there are few studies on THI values under 72 that compare the effect of heat stress in different lactation stages. The objective of this study was to determine the heat stress effect on two lactation stages with a THI below the threshold 72. Thirty-nine multiparous, non-pregnant Holstein cows with more than 30 kg/cow.day of solid-corrected milk were used in a randomised complete block design to evaluate six treatments. The experimental design had a 3 by 2 factorial arrangement with three heat stress mitigation strategies: No shade (CON), access to shade only, and access to shade combined with sprinkling and ventilation, and two stages of lactation: early (S1) and late (S2), 12 ± 10.3 and 201 ± 45.8 days in milk respectively, for a duration of 81 consecutive days. All treatments, except CON had access to artificial shade from 0900 hours to 0500 hours next day. From 0500 hours to 0900 hours all cows were managed together in a grazing session. Additionally, sprinkling and ventilation cows had two 30-min sessions of ventilation and spray (0900 hours, 1530 hours). The average THI was 70.1 ± 4.46 (minimum THI: 60.4? maximum THI: 81.7) and the average hours above 72 were 7.8 ± 5.98. Animals in S1 presented higher solids-corrected milk reduction (P < 0.0001? 5.4 and 1.9 kg/cow.day), and protein yield (<0.0001? 0.13 and 0.54 kg/cow.day) t... Presentar Todo |
Palabras claves : |
DAIRY COW; HEAT STRESS; MILK PRODUCTION; TEMPERATURE. |
Thesagro : |
GANADO DE LECHE; PRODUCCION DE LECHE. |
Asunto categoría : |
-- |
Marc : |
LEADER 02764naa a2200277 a 4500 001 1058831 005 2021-02-12 008 2019 bl uuuu u00u1 u #d 022 $a1836-0939 024 7 $a10.1071/AN16571$2DOI 100 1 $aROMAN, L. 245 $aShade access in combination with sprinkling and ventilation effects performance of Holstein cows in early and late lactation.$h[electronic resource] 260 $c2019 500 $aArticle history: Submitted: 19 August 2016 / Accepted: 15 September 2017 / Published online: 15 December 2017. 520 $aAbstract- The negative effect of heat stress on dairy cows, with a temperature humidity index (THI) over 72, has been extensively studied. However, there are few studies on THI values under 72 that compare the effect of heat stress in different lactation stages. The objective of this study was to determine the heat stress effect on two lactation stages with a THI below the threshold 72. Thirty-nine multiparous, non-pregnant Holstein cows with more than 30 kg/cow.day of solid-corrected milk were used in a randomised complete block design to evaluate six treatments. The experimental design had a 3 by 2 factorial arrangement with three heat stress mitigation strategies: No shade (CON), access to shade only, and access to shade combined with sprinkling and ventilation, and two stages of lactation: early (S1) and late (S2), 12 ± 10.3 and 201 ± 45.8 days in milk respectively, for a duration of 81 consecutive days. All treatments, except CON had access to artificial shade from 0900 hours to 0500 hours next day. From 0500 hours to 0900 hours all cows were managed together in a grazing session. Additionally, sprinkling and ventilation cows had two 30-min sessions of ventilation and spray (0900 hours, 1530 hours). The average THI was 70.1 ± 4.46 (minimum THI: 60.4? maximum THI: 81.7) and the average hours above 72 were 7.8 ± 5.98. Animals in S1 presented higher solids-corrected milk reduction (P < 0.0001? 5.4 and 1.9 kg/cow.day), and protein yield (<0.0001? 0.13 and 0.54 kg/cow.day) than animals in S2 when shade was not allowed (CON). It was concluded that under these conditions, animal productivity is more negatively affected in early lactation animals. The use of shade with or without spray and ventilation mitigates heat stress effects on both stages of lactation. © CSIRO. 650 $aGANADO DE LECHE 650 $aPRODUCCION DE LECHE 653 $aDAIRY COW 653 $aHEAT STRESS 653 $aMILK PRODUCTION 653 $aTEMPERATURE 700 1 $aSARAVIA, C. 700 1 $aASTIGARRAGA, L. 700 1 $aBENTANCUR, O. 700 1 $aLA MANNA, A. 773 $tAnimal Production Science, 2019, Volume 59, Issue 2, Pages 216-224. Doi: https://doi.org/10.1071/AN16571
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
12/02/2019 |
Tipo de producción científica : |
Documentos |
Autor : |
BANCHERO, G.; SAN JULIÁN, R.; MONTOSSI, F.; BERRETTA, E.J.; LEVRATTO, J.; ZAMIT, W. |
Afiliación : |
GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROBERTO SAN JULIAN SANCHEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ELBIO JOAQUIN BERRETTA CARVALLO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN CARLOS LEVRATTO CORTES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WILFREDO SHAMIL ZAMIT DUARTE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Suplementación mineral de borregas pastoreando campo natural de Basalto. |
Fecha de publicación : |
1997 |
Fuente / Imprenta : |
ln: INIA Tacuarembó. Unidad Experimental Glencoe. Tecnologías de producción ganadera para Basalto. Tacuarembó (Uruguay): INIA, 1997. |
Páginas : |
cap. 2, p. 34-36 |
Serie : |
(INIA Serie Actividades de Difusión ; 145) |
Idioma : |
Español |
Contenido : |
El objetivo de este experimento es evaluar el impacto de la suplementación mineral en categorías ovinas de altos requerimientos pastoreando campo natural. |
Palabras claves : |
ANIMAL PRODUCTION; SUPLEMENTACIÓN MINERAL. |
Thesagro : |
CAMPO NATURAL; OVINOS; SUELO BASALTICO; SUPLEMENTOS; URUGUAY. |
Asunto categoría : |
L01 Ganadería |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/9625/1/SAD145cap2p34-36.pdf
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Marc : |
LEADER 01039naa a2200289 a 4500 001 1022109 005 2019-02-12 008 1997 bl uuuu u00u1 u #d 100 1 $aBANCHERO, G. 245 $aSuplementación mineral de borregas pastoreando campo natural de Basalto. 260 $c1997 300 $acap. 2, p. 34-36 490 $a(INIA Serie Actividades de Difusión ; 145) 520 $aEl objetivo de este experimento es evaluar el impacto de la suplementación mineral en categorías ovinas de altos requerimientos pastoreando campo natural. 650 $aCAMPO NATURAL 650 $aOVINOS 650 $aSUELO BASALTICO 650 $aSUPLEMENTOS 650 $aURUGUAY 653 $aANIMAL PRODUCTION 653 $aSUPLEMENTACIÓN MINERAL 700 1 $aSAN JULIÁN, R. 700 1 $aMONTOSSI, F. 700 1 $aBERRETTA, E.J. 700 1 $aLEVRATTO, J. 700 1 $aZAMIT, W. 773 $tln: INIA Tacuarembó. Unidad Experimental Glencoe. Tecnologías de producción ganadera para Basalto. Tacuarembó (Uruguay): INIA, 1997.
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