| |
|
|
| Registros recuperados : 8 | |
| 1. |  | TISCORNIA, G.; PORCILE, V.; BIDEGAIN, M.; DE LOS SANTOS, B.; DE BRUM RODRÍGUEZ, F.; VAN LIER, E.; OLIVERA, J.; CASARETTO, A.; MARCHELLI, J.; FIERRO, S.; SARAVIA, C.; DE BARBIERI, I. Comportamiento histórico del Índice de enfriamiento (Chill index) para ovinos durante la estación fria. Producción Animal. Revista INIA Uruguay, 2020, no. 61, p. 23-27. (Revista INIA; 61).| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
|    |
| 2. | | Saldanha, S.; Saravia, C.; Krall, E.; Cruz, G.; Salvarrey, L. Efecto del estrés térmico estival en el comportamiento de pastoreo de vaquillonas Holando y Jersey ln: Reunión del Grupo Técnico Regional del Cono Sur en Mejoramiento y Utilización de los Recursos Forrajeros del Area Tropical y Subtropical, Grupo Campos, 20., 2004, Salto, UY Saldanha, S.; Bemhaja, M.; Moliterno, E.; Olmos, F.; Uriarte, G., ed. Sustentabilidad, desarrollo y conservación de los ecosistemas : memorias. Salto: UdelaR. Regional Norte, 2004. p. 311-312| Biblioteca(s): INIA La Estanzuela. |
| |
| 3. | | ROMAN, L.; SARAVIA, C.; ASTIGARRAGA, L.; BENTANCUR, O.; ACOSTA, Y.; PLA, M.; MENDOZA, A.; MORALES-PIÑEYRUA, J.; LA MANNA, A. El acceso a sombra asociado o no con aspersión y ventilación mejora las variables fisiológicas y el desempeño productivo de vacas holando en el suroeste de Uruguay. In: Día de Campo Manejo de Estrés Térmico en Ganado Lechero. La Estanzuela: INIA, 2014. p. 13-16. (Serie Actividades de Difusión; 728).| Biblioteca(s): INIA La Estanzuela. |
| |
| 4. | | ROMAN, L.; LA MANNA, A.; ACOSTA, Y.; MENDOZA, A.; AGUILAR, I.; MORALES-PIÑEYRUA, J.; PLA, M.; LAURA ASTIGARRAGA, L.; SARAVIA, C. Evaluación de medidas de mitigación del estrés por calor sobre las respuestas productivas de vacas lecheras de alta producción. In: Día de Campo: producción de forraje y leche en verano. La Estanzuela, Colonia, (Uruguay): INIA, 2013. p. 15. (Serie Actividades de Difusión; 705).| Biblioteca(s): INIA La Estanzuela. |
| |
| 5. | | ALFONSO, M.; DE BARBIERI, I.; DE BRUM, F.; TISCORNIA, G.; SARAVIA, C.; VAN LIER, E.; OLIVERA, J.; CASARETTO, A.; MARCHELLI, J.; FIERRO, S.; BIDEGAIN, M.; DE LOS SANTOS, B. Previsión de condiciones ambientales para corderos recién nacidos. Revista INIA Uruguay, 2018, no. 53, p. 15-17. (Revista INIA; 53)| Biblioteca(s): INIA Tacuarembó. |
| |
| Registros recuperados : 8 | |
|
|
|
 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA Las Brujas. |
|
Fecha actual : |
22/07/2018 |
|
Actualizado : |
12/02/2021 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Circulación / Nivel : |
Internacional - -- |
|
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
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Las Brujas (LB) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
| Expresión de búsqueda válido. Check! |
|
|
