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146. | | AROCENA, R.; CHALAR, G.; FABIÁN, D.; PACHECO, J.P.; OLIVERO, V.; GONZÁLEZ, M.; SILVA, M.; GARCÍA, P.; PERDOMO, C. Impacto de la lechería en los ecosistemas acuáticos continentales. Montevideo (UY) : INIA, 2016 39 p. (Serie FPTA-INIA; 60) Proyecto FPTA-179: Medidas para la mitigación del impacto de la lechería en la calidad de agua de la cuenca lechera del embalse Paso Severino. Período de Ejecución: May.2009-Abr.2012.Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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148. | | HERRERO, M.A.; VANKEIRSBILCK, M.I.; MAEKAWA, M.; CHARLÓN , V.; GONZALEZ PEREIRA , A.V.; VARILLAS, G.; TIERI, M.; LA MANNA, A. Indicadores geográficos y prediales para evaluar el riesgo ambiental de tambos comerciales mediante una matriz.[Geographic and farm indicators to evaluate environmental risk in dairy farms using a matrix.]. SP 46. In: Congreso Argentino de Producción Animal, 40°, 6 al 9 de noviembre de 2017, Córdoba, (Argentina): Asociación Argentina de Producción Animal (AAPA). p. 218. (Revista Argentina de Producción Animal; 2017; 37; supl.1).Biblioteca(s): INIA La Estanzuela. |
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This article is available under the Creative Commons CC-BY-NC-ND license and permits non-commercial...Biblioteca(s): INIA La Estanzuela. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
31/10/2019 |
Actualizado : |
31/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
CAPELESSO, A.; KOZLOSKI, G.; MENDOZA, A.; PLA, M.; REPETTO, J.; CAJARVILLE, C. |
Afiliación : |
Departamento de Nutrición Animal, Universidad de la República, Facultad de Veterinaria, San José, Uruguay./Departamento de Zootecnia da Universidade Federal de Santa Maria, Rio Grande do Sul, Brasil.; Departamento de Zootecnia da Universidade Federal de Santa Maria, Rio Grande do Sul, 97105900, Brazil.; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARCELO PLA TEJERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSE LUIS REPETTO CAPELLO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./ Departamento de Producción de Bovinos, Universidad de la República, Facultad de Veterinaria, San José, Uruguay.; CECILIA CAJARVILLE, Departamento de Nutrición Animal, Universidad de la República, Facultad de Veterinaria, San José, Uruguay. |
Título : |
Reducing milking frequency in early lactation improved the energy status but reduced milk yield during the whole lactation of primiparous Holstein cows consuming a total mixed ration and pasture. |
Fecha de publicación : |
2019 |
Fuente / Imprenta : |
Journal of Dairy Science, October 2019, Volume 102, Issue 10, Pages 8919-8930. |
DOI : |
10.3168/jds.2019-16629 |
Idioma : |
Inglés |
Notas : |
Article history: Received March 15, 2019. / Accepted June 21, 2019. |
Contenido : |
Abstract:
To investigate the immediate and long-term performance effects of milking frequency during early lactation of primiparous dairy cows consuming a total mixed ration and pasture, 20 Holstein cows were assigned in a randomized block design to either once-daily (1×) or twice-daily (2×) milking during the first 8 wk of lactation (treatment period). After the treatment period, all cows were milked 2× until wk 43 of lactation. Cows were fed a total mixed ration (approximately 15 kg of DM/cow per day) and allowed to graze an oat pasture (Avena sativa). Dry matter intake was 19.1 kg of DM/cow per day on average and was not affected by treatments. Milk yield was 40% lower in cows milked 1× during the treatment period, and a carryover effect existed until wk 21 of lactation, resulting in a final reduction of 15% of milk yield in the whole lactation. Milk lactose concentration decreased, whereas fat and protein concentrations increased for cows milked 1×. Mobilization of energy reserves during the treatment period occurred in both groups, but cows milked 1× showed greater body condition score and greater backfat thickness. In conclusion, milking 1× during the first 8 wk of lactation resulted in immediate and carryover negative effects on milk and milk solid yield without affecting feed intake, resulting in the improved energy status of primiparous dairy cows. |
Palabras claves : |
DAIRY COWS; GRAZING; ONCE-DAILY MILKING; ORDEÑE UNA VEZ AL DIA; VACA HOLSTEIN. |
Thesagro : |
LECHERÍA; VACAS LECHERAS. |
Asunto categoría : |
L01 Ganadería |
Marc : |
LEADER 02386naa a2200289 a 4500 001 1060374 005 2019-10-31 008 2019 bl uuuu u00u1 u #d 024 7 $a10.3168/jds.2019-16629$2DOI 100 1 $aCAPELESSO, A. 245 $aReducing milking frequency in early lactation improved the energy status but reduced milk yield during the whole lactation of primiparous Holstein cows consuming a total mixed ration and pasture.$h[electronic resource] 260 $c2019 500 $aArticle history: Received March 15, 2019. / Accepted June 21, 2019. 520 $aAbstract: To investigate the immediate and long-term performance effects of milking frequency during early lactation of primiparous dairy cows consuming a total mixed ration and pasture, 20 Holstein cows were assigned in a randomized block design to either once-daily (1×) or twice-daily (2×) milking during the first 8 wk of lactation (treatment period). After the treatment period, all cows were milked 2× until wk 43 of lactation. Cows were fed a total mixed ration (approximately 15 kg of DM/cow per day) and allowed to graze an oat pasture (Avena sativa). Dry matter intake was 19.1 kg of DM/cow per day on average and was not affected by treatments. Milk yield was 40% lower in cows milked 1× during the treatment period, and a carryover effect existed until wk 21 of lactation, resulting in a final reduction of 15% of milk yield in the whole lactation. Milk lactose concentration decreased, whereas fat and protein concentrations increased for cows milked 1×. Mobilization of energy reserves during the treatment period occurred in both groups, but cows milked 1× showed greater body condition score and greater backfat thickness. In conclusion, milking 1× during the first 8 wk of lactation resulted in immediate and carryover negative effects on milk and milk solid yield without affecting feed intake, resulting in the improved energy status of primiparous dairy cows. 650 $aLECHERÍA 650 $aVACAS LECHERAS 653 $aDAIRY COWS 653 $aGRAZING 653 $aONCE-DAILY MILKING 653 $aORDEÑE UNA VEZ AL DIA 653 $aVACA HOLSTEIN 700 1 $aKOZLOSKI, G. 700 1 $aMENDOZA, A. 700 1 $aPLA, M. 700 1 $aREPETTO, J. 700 1 $aCAJARVILLE, C. 773 $tJournal of Dairy Science, October 2019, Volume 102, Issue 10, Pages 8919-8930.
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