| |
|
|
 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA La Estanzuela. |
|
Fecha : |
05/08/2021 |
|
Actualizado : |
05/08/2021 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Autor : |
STIRLING, S.; FARIÑA, S.; PACHECO, D.; VIBART, R. |
|
Afiliación : |
MARÍA SOFÍA STIRLING SANTOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.; SANTIAGO FARIÑA, INIA (Instituto Nacional de Investigación Agropecuaria); DAVID PACHECO, Grasslands Research Centre, Private Bag 11008, Palmerston North 4442, New Zealand.; RONALDO VIBART, Grasslands Research Centre, Private Bag 11008, Palmerston North 4442, New Zealand. |
|
Título : |
Whole-farm modelling of grazing dairy systems in Uruguay. |
|
Fecha de publicación : |
2021 |
|
Fuente / Imprenta : |
Agricultural Systems, 2021, volume 193, article 103227. Doi: https://doi.org/10.1016/j.agsy.2021.103227 |
|
DOI : |
10.1016/j.agsy.2021.10322 |
|
Idioma : |
Inglés |
|
Notas : |
Article history: Received 5 January 2021; Received in revised form 7 July 2021; Accepted 9 July 2021; Available online 21 July 2021. |
|
Contenido : |
Abstract:
CONTEXT:Modelling grazing dairy systems from the temperate hot-summer climate region of South America is challenging due to the absence of suitable whole-farm models developed or evaluated in this region. The use of whole-farm models developed in other regions represents an opportunity. However, the accuracy and precision of their predictions need to be assessed.
OBJECTIVES:The present study evaluated the predictive ability of Farmax Dairy Pro, a whole-farm model developed in New Zealand, to simulate grazing dairy systems in Uruguay.
METHODS:Data used for the model evaluation was obtained from a dairy farmlet study carried out in Uruguay. The study aimed to explore four intensification strategies based on increasing home-grown forage utilisation and milk output per hectare. The field experiment consisted of four farmlets using two feeding strategies: [Grass Maximum (GMAX) and Grass Fixed (GFIX), based on the amount of grazed herbage in the diet], and two cow genotypes [New Zealand (NZHF) or North American Holstein-Friesian (NAHF)]. The four farmlets were modelled with Farmax for two consecutive years. Model evaluation was performed using standard regression, dimensionless and error index statistics. The model was evaluated by comparing predicted versus observed monthly patterns of milk, milk fat, milk protein and milk solids (MS; milk fat + milk protein) yields, body condition score (BCS), body weight (BW), DM intake (DMI) and net pasture growth rate (PGR). An application of the model was demonstrated by modelling three scenarios for the GMAX-NZHF farmlet.
RESULTS AND CONCLUSIONS:The predictive ability of Farmax was similar for the four farmlets modelled, including patterns over time, for all the variables evaluated. The model provided a robust prediction for monthly patterns of milk and milk components yields at a herd level for total DMI and PGR. The model had a moderate ability to predict monthly patterns of individual milk and milk components yields and BCS, and a poor ability to predict BW. The scenario modelling results indicate that the model could be used with confidence to simulate different farm system alternatives. Overall, the Farmax Dairy Pro model had the potential to provide adequate predictions for grazing dairy systems from Uruguay.
SIGNIFICANCE:This model will allow the exploration of future intensification pathways for grazing dairy systems in Uruguay and the region, including changes in the forage sequence, stocking rate and calving season. Further adjustments of the model will expand the range of systems and latitudes for this model to be utilised. MenosAbstract:
CONTEXT:Modelling grazing dairy systems from the temperate hot-summer climate region of South America is challenging due to the absence of suitable whole-farm models developed or evaluated in this region. The use of whole-farm models developed in other regions represents an opportunity. However, the accuracy and precision of their predictions need to be assessed.
OBJECTIVES:The present study evaluated the predictive ability of Farmax Dairy Pro, a whole-farm model developed in New Zealand, to simulate grazing dairy systems in Uruguay.
METHODS:Data used for the model evaluation was obtained from a dairy farmlet study carried out in Uruguay. The study aimed to explore four intensification strategies based on increasing home-grown forage utilisation and milk output per hectare. The field experiment consisted of four farmlets using two feeding strategies: [Grass Maximum (GMAX) and Grass Fixed (GFIX), based on the amount of grazed herbage in the diet], and two cow genotypes [New Zealand (NZHF) or North American Holstein-Friesian (NAHF)]. The four farmlets were modelled with Farmax for two consecutive years. Model evaluation was performed using standard regression, dimensionless and error index statistics. The model was evaluated by comparing predicted versus observed monthly patterns of milk, milk fat, milk protein and milk solids (MS; milk fat + milk protein) yields, body condition score (BCS), body weight (BW), DM intake (DMI) and net pasture growth rate (PGR). An appl... Presentar Todo |
|
Palabras claves : |
Dairy system; Model evaluation; SISTEMAS LECHEROS; Temperate region; Whole-farm model. |
|
Asunto categoría : |
L01 Ganadería |
|
Marc : |
LEADER 03472naa a2200241 a 4500
001 1062334
005 2021-08-05
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1016/j.agsy.2021.10322$2DOI
100 1 $aSTIRLING, S.
245 $aWhole-farm modelling of grazing dairy systems in Uruguay.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 5 January 2021; Received in revised form 7 July 2021; Accepted 9 July 2021; Available online 21 July 2021.
520 $aAbstract: CONTEXT:Modelling grazing dairy systems from the temperate hot-summer climate region of South America is challenging due to the absence of suitable whole-farm models developed or evaluated in this region. The use of whole-farm models developed in other regions represents an opportunity. However, the accuracy and precision of their predictions need to be assessed. OBJECTIVES:The present study evaluated the predictive ability of Farmax Dairy Pro, a whole-farm model developed in New Zealand, to simulate grazing dairy systems in Uruguay. METHODS:Data used for the model evaluation was obtained from a dairy farmlet study carried out in Uruguay. The study aimed to explore four intensification strategies based on increasing home-grown forage utilisation and milk output per hectare. The field experiment consisted of four farmlets using two feeding strategies: [Grass Maximum (GMAX) and Grass Fixed (GFIX), based on the amount of grazed herbage in the diet], and two cow genotypes [New Zealand (NZHF) or North American Holstein-Friesian (NAHF)]. The four farmlets were modelled with Farmax for two consecutive years. Model evaluation was performed using standard regression, dimensionless and error index statistics. The model was evaluated by comparing predicted versus observed monthly patterns of milk, milk fat, milk protein and milk solids (MS; milk fat + milk protein) yields, body condition score (BCS), body weight (BW), DM intake (DMI) and net pasture growth rate (PGR). An application of the model was demonstrated by modelling three scenarios for the GMAX-NZHF farmlet. RESULTS AND CONCLUSIONS:The predictive ability of Farmax was similar for the four farmlets modelled, including patterns over time, for all the variables evaluated. The model provided a robust prediction for monthly patterns of milk and milk components yields at a herd level for total DMI and PGR. The model had a moderate ability to predict monthly patterns of individual milk and milk components yields and BCS, and a poor ability to predict BW. The scenario modelling results indicate that the model could be used with confidence to simulate different farm system alternatives. Overall, the Farmax Dairy Pro model had the potential to provide adequate predictions for grazing dairy systems from Uruguay. SIGNIFICANCE:This model will allow the exploration of future intensification pathways for grazing dairy systems in Uruguay and the region, including changes in the forage sequence, stocking rate and calving season. Further adjustments of the model will expand the range of systems and latitudes for this model to be utilised.
653 $aDairy system
653 $aModel evaluation
653 $aSISTEMAS LECHEROS
653 $aTemperate region
653 $aWhole-farm model
700 1 $aFARIÑA, S.
700 1 $aPACHECO, D.
700 1 $aVIBART, R.
773 $tAgricultural Systems, 2021, volume 193, article 103227. Doi: https://doi.org/10.1016/j.agsy.2021.103227
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA La Estanzuela (LE) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
| Registros recuperados : 15 | |
| 5. |  | STIRLING, S.; DIAZ-LAGO, J.E.; REPETTO, J.; PLA, M.; ARROYO, J.; CAJARVILLE, C. Growth stage and ensiling: impact on chemical composition, conservation quality and in situ ruminal degradability of whole-crop oat. Journal of the Science of Food and Agriculture. 2021, Volume102, Issue 7, pages 2783-2791. doi: https://doi.org/10.1002/jsfa.11619 Article history: Received 5 March 2021; Revised 2 October 2021; Accepted article published 29 October 2021. -- Corresponding author: Cajarville, C.; Departamento de Producción Animal y Salud de Sistemas Productivos (IPAV), Facultad de...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA La Estanzuela. |
|    |
| 6. | | STIRLING, S.; REPETTO, J.; DIAZ-LAGO, J.E.; BRITOS, A.; PLA, M.; GEYMONAT, L.; CAJARVILLE, C. Effect of stage of growth at harvest and ensiling on in vitro gas production of whole-crop oats. [Abstract]. Congreso de la Asociación Latinoamericana de Producción Animal, 24.; Congreso de la Sociedad Chilena de Producción Animal, 40., Puerto Varas, Chile, 9 al 13 noviembre 2015. ln: Reunión ALPA (24., Puerto Varas, Chile). Resúmenes. Puerto Varas (Chile): ALPA, 2015. p. 527.| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA La Estanzuela. |
| |
| 8. | | WALLER, A.; MARTÍNEZ, R.; STIRLING, S.; PLA, M.; LATTANZI, F.; FARIÑA, S. Sistemas de alta producción con estrategias de alimentación y genotipos animales contrastantes: biomasa pre y post pastoreo. [Resumen]. En: CONGRESO ASOCIACIÓN URUGUAYA DE PRODUCCIÓN ANIMAL (6º, Marzo, 2018, Tacuarembó, Uruguay). Tacuarembó: AUPA, 2018. p. 174.| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA La Estanzuela. |
|  |
| 9. | | MARTÍNEZ, R.; STIRLING, S.; PLA, M.; WALLER, A.; MENDOZA, A.; MORALES-PIÑEYRUA, J.; FARIÑA, S. Sistemas de alta producción con estrategias de alimentación y genotipos animales contrastantes: performance animal. [Resumen]. En: CONGRESO ASOCIACIÓN URUGUAYA DE PRODUCCIÓN ANIMAL (6º, Marzo, 2018, Tacuarembó, Uruguay). Tacuarembó: AUPA, 2018. p. 166.| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA La Estanzuela. |
| |
| 10. | | STIRLING, S.; MARTÍNEZ, R.; PLA, M.; WALLER, A.; MENDOZA, A.; FARIÑA, S. Sistemas lecheros de alta producción con estrategias de alimentación y genotipos animales contrastantes: cosecha de pasto por hectárea. [Resumen]. En: CONGRESO ASOCIACIÓN URUGUAYA DE PRODUCCIÓN ANIMAL (6º, Marzo, 2018, Tacuarembó, Uruguay). Tacuarembó: AUPA, 2018. p. 171.| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA La Estanzuela. |
| |
| 11. | | MARTÍNEZ, R.; STIRLING, S.; WALLER, A.; ERRECARTE, E.; PLA, M.; MENDOZA, A.; FARIÑA, S. Sistemas lecheros de alta producción con estrategias de alimentación y genotipos animales contrastantes.[High producing dairy systems with different feeding strategies and animal genotype]. SP 44. In: Congreso Argentino de Producción Animal, 41°, 16-19 oct. 2018. Mar del Plata, (Argentina): Asociación Argentina de Producción Animal (AAPA). p.134. (Revista Argentina de Producción Animal; 2018; 38; Suppl.1).| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA La Estanzuela. |
| |
| 12. | | FARIÑA, S.; STIRLING, S.; MARTÍNEZ, R.; MENDOZA, A.; MORALES-PIÑEYRUA, J.; HIRIGOYEN, D.; CARTAYA, A. Proyecto 10-mil: módulos de intensificación lechera Revista INIA Uruguay, 2018, no. 53, p. 22-26. (Revista INIA; 53). Además, en el marco del proyecto participan 5 estudiantes de Maestría, 3 estudiantes de Doctorado y 15 estudiantes realizaron pasantías o trabajos de fin de carrera de Escuelas Agrarias o carreras de UDE y UdelaR.| Tipo: Artículos en Revistas Agropecuarias |
| Biblioteca(s): INIA La Estanzuela. |
| |
| 14. | | GARZÓN, J. P.; SILVEIRA, C.S.; URIOSTE, V.; STIRLING, S.; LOCKHART, B.; FARIÑA, S.; GIANNITTI, F.; GASTAL, G.D.A. Pérdidas embrionarias y fetales en un rodeo de bovinos holstein de uruguay: efectos de la paridad, el biotipo y la exposición a Neospora caninum y el virus de la leucosis bovina. In: Jornadas Uruguayas de Buiatría, 48., 2021. Paysandú, Uruguay: Centro Médico Veterinario de Paysandú; Filial de la Sociedad de Medicina Veterinaria del Uruguaya; Sociedad Uruguaya de Buiatría, 31 de Mayo al 4 de Junio 2021. [Poster]. p.260-263.| Biblioteca(s): INIA La Estanzuela. |
| |
| 15. | | STIRLING, S.; DIAZ-LAGO, J.E.; PLA, M.; MENDOZA, A.; BRITOS, A.; BELTRÁN, A.; BERNARDI, F.; REPETTO, J.L.; CAJARVILLE, C. Efectos del estado fenológico sobre el rendimiento del cultivo las pérdidas y el pH del ensilaje de planta entera de Avena sativa. In JORNADAS URUGUAYAS DE BUIATRÍA, 42., 2014, Paysandú, UY; ELIZONDO, V.; MATTO, C. (Ed.). [Trabajos presentados]: posters. Paysandú: Centro Médico Veterinario de Paysandú/Sociedad Uruguaya de Buiatría, 2014. p. 243-245.| Biblioteca(s): INIA La Estanzuela. |
| |
| Registros recuperados : 15 | |
|
| Expresión de búsqueda válido. Check! |
|
|
