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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
19/07/2023 |
Actualizado : |
19/07/2023 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
SANTANA, A.; CAJARVILLE, C.; MENDOZA, A.; REPETTO, J.L. |
Afiliación : |
A. SANTANA, Departamento de Producción Animal y Salud de los Sistemas Productivos (IPAV), Facultad de Veterinaria, Universidad de la República, San José, 801000, Uruguay; CECILIA CAJARVILLE, Departamento de Producción Animal y Salud de los Sistemas Productivos (IPAV), Facultad de Veterinaria, Universidad de la República, San José, 801000, Uruguay; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSÉ LUIS REPETTO, Departamento de Producción Animal y Salud de los Sistemas Productivos (IPAV), Facultad de Veterinaria, Universidad de la República, San José, 801000, Uruguay. |
Título : |
Including 8 hours of access to alfalfa in 1 or 2 grazing sessions in dairy cows fed a partial mixed ration: Effects on intake, behavior, digestion, and milk production and composition. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
Journal of Dairy Science. 2023, https://doi.org/10.3168/jds.2022-22743 --- [In Press, Corrected Proof]. OPEN ACCESS. |
ISSN : |
0022-0302 |
DOI : |
10.3168/jds.2022-22743 |
Idioma : |
Inglés |
Notas : |
Article history: Received 8 September 2022; Accepted 3 March 2023; Available online 18 July 2023. -- Correspondence author: : joselorepetto@gmail.com -- LICENSE: This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). -- FUNDING: This experiment was partially supported by the Agencia Nacional de Innovación e Investigación of Uruguay (Grant FMV_3-2018-1-148846 to A. Santana). -- |
Contenido : |
The aim of this study was to evaluate the inclusion of alfalfa grazing during 8 h continuous or partitioned in 2 separated sessions of 4 h after each milking, on nutrient intake, digestibility, ruminal fermentation, feeding behavior, milk production, milk composition, and milk fatty acid profile, in late-lactation cows fed a partial mixed ration (PMR). Twelve dairy cows (193 ± 83 d in milk, 584 ± 71 kg of body weight) were housed in individual outdoor pens and assigned to treatments according to a 3 × 3 Latin square design replicated 4 times. The treatments were as follows: (1) control (T0), cows were fed a total mixed ration (TMR) provided ad libitum 20.0% crude protein (CP), 32.2% neutral detergent fiber (NDF); (2) fed a diet combining a PMR which had the same ingredient composition as the TMR (60% of ad libitum intake) + 1 session of 8 h of pasture (T8), continuous grazing alfalfa (Medicago sativa; 20.6% CP, 35.8% NDF) after the p.m. milking; and (3) PMR (60% of ad libitum intake) + 2 daily sessions of 4 h of access to pasture after each milking (T4+4). The experiment lasted 57 d and was divided into 3 periods of 19 d each. The first 12 d of each period was used for diet adaptation, and the last 7 d was used for data collection. No differences among treatments were observed for any of the productive variables, feeding efficiency, or purine derivatives excretion. Cows in T0 had greater intake and apparent digestibility of dry matter, organic matter, and nonfibrous carbohydrates compared with T4+4 and T8. Compared with T0, alfalfa grazing increased the concentration of C18:1 trans-11 and decreased those of C16:0 and C17:0 in milk fat. Cows in T4+4 consumed 1.1 more kg DM/d of alfalfa and N provided by alfalfa in the diet was 3 percentage points higher compared with T8 cows (266 vs. 229 g/d, respectively). In addition, T4+4 cows had a greater daily range of ruminal pH than T8 (0.73 vs. 0.93), and the highest concentrations of NH3-N were recorded during the a.m. grazing session while in T8 cows it occurred during the night. In conclusion, including 8 h of alfalfa grazing in T8 and T4+4 treatments allowed the substitution between 35.8 and 38.7% of the total dry matter intake (DMI) of a PMR (with a similar CP concentration to alfalfa) for pasture, maintaining milk solids production and increasing the C18:1 trans-11 of milk fat compared with a TMR in mid late-lactation cows. In an herbage plus PMR diet, splitting the 1 continuous grazing session of 8 h into 2 sessions of 4 h increased the proportion of energy and N provided by alfalfa pasture and reduced PMR intake, without modifying the total nutrient intake or productive performance of cows. © 2023, The Authors. Published by Elsevier Inc. and Fass Inc. on behalf of the American Dairy Science Association® MenosThe aim of this study was to evaluate the inclusion of alfalfa grazing during 8 h continuous or partitioned in 2 separated sessions of 4 h after each milking, on nutrient intake, digestibility, ruminal fermentation, feeding behavior, milk production, milk composition, and milk fatty acid profile, in late-lactation cows fed a partial mixed ration (PMR). Twelve dairy cows (193 ± 83 d in milk, 584 ± 71 kg of body weight) were housed in individual outdoor pens and assigned to treatments according to a 3 × 3 Latin square design replicated 4 times. The treatments were as follows: (1) control (T0), cows were fed a total mixed ration (TMR) provided ad libitum 20.0% crude protein (CP), 32.2% neutral detergent fiber (NDF); (2) fed a diet combining a PMR which had the same ingredient composition as the TMR (60% of ad libitum intake) + 1 session of 8 h of pasture (T8), continuous grazing alfalfa (Medicago sativa; 20.6% CP, 35.8% NDF) after the p.m. milking; and (3) PMR (60% of ad libitum intake) + 2 daily sessions of 4 h of access to pasture after each milking (T4+4). The experiment lasted 57 d and was divided into 3 periods of 19 d each. The first 12 d of each period was used for diet adaptation, and the last 7 d was used for data collection. No differences among treatments were observed for any of the productive variables, feeding efficiency, or purine derivatives excretion. Cows in T0 had greater intake and apparent digestibility of dry matter, organic matter, and nonfibrous carbohyd... Presentar Todo |
Palabras claves : |
Fresh forage; Partial mixed ration; Ruminal fermentation. |
Thesagro : |
ALFALFA. |
Asunto categoría : |
L02 Alimentación animal |
URL : |
https://www.sciencedirect.com/science/article/pii/S0022030223003740/pdf
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Marc : |
LEADER 04084naa a2200241 a 4500 001 1064258 005 2023-07-19 008 2023 bl uuuu u00u1 u #d 022 $a0022-0302 024 7 $a10.3168/jds.2022-22743$2DOI 100 1 $aSANTANA, A. 245 $aIncluding 8 hours of access to alfalfa in 1 or 2 grazing sessions in dairy cows fed a partial mixed ration$bEffects on intake, behavior, digestion, and milk production and composition.$h[electronic resource] 260 $c2023 500 $aArticle history: Received 8 September 2022; Accepted 3 March 2023; Available online 18 July 2023. -- Correspondence author: : joselorepetto@gmail.com -- LICENSE: This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). -- FUNDING: This experiment was partially supported by the Agencia Nacional de Innovación e Investigación of Uruguay (Grant FMV_3-2018-1-148846 to A. Santana). -- 520 $aThe aim of this study was to evaluate the inclusion of alfalfa grazing during 8 h continuous or partitioned in 2 separated sessions of 4 h after each milking, on nutrient intake, digestibility, ruminal fermentation, feeding behavior, milk production, milk composition, and milk fatty acid profile, in late-lactation cows fed a partial mixed ration (PMR). Twelve dairy cows (193 ± 83 d in milk, 584 ± 71 kg of body weight) were housed in individual outdoor pens and assigned to treatments according to a 3 × 3 Latin square design replicated 4 times. The treatments were as follows: (1) control (T0), cows were fed a total mixed ration (TMR) provided ad libitum 20.0% crude protein (CP), 32.2% neutral detergent fiber (NDF); (2) fed a diet combining a PMR which had the same ingredient composition as the TMR (60% of ad libitum intake) + 1 session of 8 h of pasture (T8), continuous grazing alfalfa (Medicago sativa; 20.6% CP, 35.8% NDF) after the p.m. milking; and (3) PMR (60% of ad libitum intake) + 2 daily sessions of 4 h of access to pasture after each milking (T4+4). The experiment lasted 57 d and was divided into 3 periods of 19 d each. The first 12 d of each period was used for diet adaptation, and the last 7 d was used for data collection. No differences among treatments were observed for any of the productive variables, feeding efficiency, or purine derivatives excretion. Cows in T0 had greater intake and apparent digestibility of dry matter, organic matter, and nonfibrous carbohydrates compared with T4+4 and T8. Compared with T0, alfalfa grazing increased the concentration of C18:1 trans-11 and decreased those of C16:0 and C17:0 in milk fat. Cows in T4+4 consumed 1.1 more kg DM/d of alfalfa and N provided by alfalfa in the diet was 3 percentage points higher compared with T8 cows (266 vs. 229 g/d, respectively). In addition, T4+4 cows had a greater daily range of ruminal pH than T8 (0.73 vs. 0.93), and the highest concentrations of NH3-N were recorded during the a.m. grazing session while in T8 cows it occurred during the night. In conclusion, including 8 h of alfalfa grazing in T8 and T4+4 treatments allowed the substitution between 35.8 and 38.7% of the total dry matter intake (DMI) of a PMR (with a similar CP concentration to alfalfa) for pasture, maintaining milk solids production and increasing the C18:1 trans-11 of milk fat compared with a TMR in mid late-lactation cows. In an herbage plus PMR diet, splitting the 1 continuous grazing session of 8 h into 2 sessions of 4 h increased the proportion of energy and N provided by alfalfa pasture and reduced PMR intake, without modifying the total nutrient intake or productive performance of cows. © 2023, The Authors. Published by Elsevier Inc. and Fass Inc. on behalf of the American Dairy Science Association® 650 $aALFALFA 653 $aFresh forage 653 $aPartial mixed ration 653 $aRuminal fermentation 700 1 $aCAJARVILLE, C. 700 1 $aMENDOZA, A. 700 1 $aREPETTO, J.L. 773 $tJournal of Dairy Science. 2023, https://doi.org/10.3168/jds.2022-22743 --- [In Press, Corrected Proof]. OPEN ACCESS.
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
05/10/2015 |
Actualizado : |
15/03/2021 |
Tipo de producción científica : |
Abstracts/Resúmenes |
Autor : |
MONTOYA, F.; VILARO, F.; GARCIA, C. |
Afiliación : |
FRANCISCO MONTOYA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FRANCISCO LUIS VILARO PAREJA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CLAUDIO CESAR GARCIA GALLARRETA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Assessment of AquaCrop Model on Potato Crop in Uruguay. |
Complemento del título : |
Sección: Evapotranspiration and Crop. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
Agrociencia Uruguay, 2015, v.19, Special Issue, Congreso CIGR. 3r. Inter-Regional CIGR Conference on Land and Water Challenges: Tools for developing "Dr. Mario García Petillo", p.2 |
ISSN : |
1510-0839 |
Idioma : |
Inglés |
Notas : |
EDITORIAL BOARD SPECIAL ISSUE: García, C. (Instituto Nacional de Investigación Agropecuaria); Puppo, L. (Universidad de la República, Facultad de Agronomía); Tarjuelo, J.M. (Univ. Castilla-La Mancha, España); Carsjens, G-.J. (Univ.Wageningen, Holanda). |
Thesagro : |
AGUA; CULTIVAR; CULTIVOS; DECISION SUPPORT SYSTEM; EVAPOTRANSPIRACION; EVAPOTRANSPIRATION; PAPA; POTATO; RENDIMIENTO; RIEGO; SUPPLEMENTAL IRRIGATION; WATER PRODUCTIVITY; YIELD. |
Asunto categoría : |
P30 Ciencia del suelo y manejo del suelo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/6806/1/Montoya-F.-2015.-Agrociencia-Sp.Issue-3rd.CIGR-p.2.pdf
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Marc : |
LEADER 01167naa a2200313 a 4500 001 1053487 005 2021-03-15 008 2015 bl uuuu u00u1 u #d 022 $a1510-0839 100 1 $aMONTOYA, F. 245 $aAssessment of AquaCrop Model on Potato Crop in Uruguay. 260 $c2015 500 $aEDITORIAL BOARD SPECIAL ISSUE: García, C. (Instituto Nacional de Investigación Agropecuaria); Puppo, L. (Universidad de la República, Facultad de Agronomía); Tarjuelo, J.M. (Univ. Castilla-La Mancha, España); Carsjens, G-.J. (Univ.Wageningen, Holanda). 650 $aAGUA 650 $aCULTIVAR 650 $aCULTIVOS 650 $aDECISION SUPPORT SYSTEM 650 $aEVAPOTRANSPIRACION 650 $aEVAPOTRANSPIRATION 650 $aPAPA 650 $aPOTATO 650 $aRENDIMIENTO 650 $aRIEGO 650 $aSUPPLEMENTAL IRRIGATION 650 $aWATER PRODUCTIVITY 650 $aYIELD 700 1 $aVILARO, F. 700 1 $aGARCIA, C. 773 $tAgrociencia Uruguay, 2015$gv.19, Special Issue, Congreso CIGR. 3r. Inter-Regional CIGR Conference on Land and Water Challenges: Tools for developing "Dr. Mario García Petillo", p.2
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