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Juan Pablo Keim San Martín

Profesor Asistente

UNIVERSIDAD AUSTRAL DE CHILE

Valdivia, Chile

Nutrición de Rumiantes; Alimentación de vacas lecheras; Valor nutritivo de forrajes

Doctorado en Ciencias Agrarias, UNIVERSIDAD AUSTRAL DE CHILE. Chile, 2012

Profesor Asistente Full Time

UNIVERSIDAD AUSTRAL DE CHILE

2009 - At present

Académico

Universidad Austral de Chile

Chile

2009 - At present
Asistente de Investigación

Universidad Austral de Chile

Chile

2008 - 2009


Concentrations of nutrients and profile of non-structural carbohydrates vary among different Brassica forages Keim, J. P.; Gandarillas, M; Benavides, D; Cabanilla J.; Pulido, RG; Balocchi O.; Bertrand A. Article ISI (2020)
Effect of a homofermentative lactic acid bacteria additive on the quality of sugar-beet pulp silage and animal response of dairy cows with restricted access to pasture Pulido, RG; Garcia, Eduardo; Beltrán, I; Daza, J.; Keim, J. P.; Castillo, Ismael Article Wos CHILEAN JOURNAL OF AGRICULTURAL RESEARCH (2020)
Effect of forage brassicas in dairy cow diets on the fatty acid profile and sensory characteristics of Chanco and ricotta cheeses. Seguel G.; Keim, J. P.; Vargas Bello, Einar; Geldsetzer-Mendoza, C.; Ibañes, R.; Alvarado, Christian A. Article WOS JOURNAL OF DAIRY SCIENCE (2020)
In Vitro Fermentation Patterns and Methane Output of Perennial Ryegrass Differing in Water-Soluble Carbohydrate and Nitrogen Concentrations Rivero, MJ; Keim, JP; Balocchi O.; Lee, MRF Article WOS (2020)
Milk production responses and rumen fermentation of dairy cows supplemented with summer brassicas Castillo-Umaña M; Balocchi O.; Pulido, RG; Sepulveda-Varas, P; Pacheco, D.; Muetzel S.; Berthiaume R.; Keim, J. P. Article WOS (2020)
Milk production responses, rumen fermentation and blood metabolites of dairy cows fed with increasing concentrations of forage rape Keim, J. P.; Daza, Jose; Beltran, I.; Balocchi O.; Pulido, RG; Sepulveda-Varas, P; Pacheco, D.; Berthiaume R. Article WOS (2020)
Pre-grazing herbage mass affects grazing behavior, herbage disappearance, and the residual nutritive value of a pasture during the first grazing session PiÃ±a L.F.; Balocchi O.A.; Keim, J. P.; Pulido R.G.; Rosas F. Article ISI SCOPUS Animals (2020)
Thermal Time as a Parameter to Determine Optimal Defoliation Frequency of Perennial Ryegrass (Lolium perenne L.) and Pasture Brome (Bromus valdivianus Phil.). Calvache, I.; Balocchi O.; Alonso M.F.; Keim, J. P.; Lopez I.F. Article WOS AGRONOMY (2020)
Characterization of Feeding, Sport Management, and Routine Care of the Chilean Corralero Horse during Rodeo Season Bull J.; Bas F.; Silva-GuzmÃ¡n M.; Wentzel H.H.; Keim, J. P.; Gandarillas M. Article ISI SCOPUS Animals (2019)
In vitro fermentation and in situ rumen degradation kinetics of summer forage brassica plants Keim, JP; Cabanilla, J; Balocchi, OA; Pulido, RG; Bertrand, A Article ISI ANIMAL PRODUCTION SCIENCE (2019)
Performance and carcass characteristics of steers fed with two levels of metabolizable energy intake during summer and winter season Arias, RA; Keim, JP; Gandarillas, M; Velasquez, A; Alvarado-Gilis, C; Mader, TL Article ISI ANIMAL (2019)
Rumen In Vitro Fermentation and In Situ Degradation Kinetics of Winter Forage Brassicas Crops Daza J.; Benavides, D; Pulido R.; Balocchi O.; Bertrand A.; Keim J. Article ISI SCOPUS Animals (2019)
Comparison of rumen in vitro fermentation of temperate pastures using different batch culture systems Keim J.P.; Berthiaume R.; Pacheco D.; Muetzel S. Article ISI SCOPUS ANIMAL PRODUCTION SCIENCE (2017)
Evaluation of sources of variation on in vitro fermentation kinetics of feedstuffs in a gas production system Keim J.P.; Alvarado-Gilis C.; Arias R.A.; Gandarillas M.; Cabanilla J. Article ISI SCOPUS ANIMAL SCIENCE JOURNAL (2017)
Behaviour, tympanic temperature and performance of dairy cows during summer season in southern Chile Jara, Ivonne; Keim, Juan Pablo; Arias, Rodrigo Article ARCHIVOS DE MEDICINA VETERINARIA (2016)
Prediction of crude protein and neutral detergent fibre concentration in residues of in situ ruminal degradation of pasture samples by near-infrared spectroscopy (NIRS) Keim, JP; Charles, H; Alomar, D Article ISI SCOPUS ANIMAL PRODUCTION SCIENCE (2016)
Sward herbage accumulation and nutritive value as affected by pasture renovation strategy Keim, JP; Lopez, IF; Balocchi, OA Article ISI SCOPUS Grass and Forage Science (2015)
Nutritive value, in vitro fermentation and methane production of perennial pastures as affected by botanical composition over a growing season in the South of Chile Juan Keim; Ignacio López; Robert Berthiaume Article Animal Production Science (2014)
In situ rumen degradation kinetics as affected by type of pasture and date of harvest Juan Keim; Ignacio López; Ximena Valderrama Article Scientia Agricola (2013)


Agricultural value of Bromus valdivianus Phil. as a pasture species FONDECYT (1180767) Proyecto 2018-2021 Coinvestigador(a)
Optimising milk production of pasture-fed lactating dairy cows through the utilisation of winter and summer brassica crops FONDECYT (11150538) Proyecto 2015-2018 Inv. Principal
Evaluación del valor nutritivo de las brásicas forrajeras de utilización estival e invernal para vacas lecheras Dirección de Investigación y Desarrollo UACh (DID-S2014_17) Proyecto 2014-2016 Inv. Responsable
Efecto de la composición botánica y época del año sobre parámetros de degradabilidad ruminal in situ de cuatro praderas permanentes y su predicción por NIRS Dirección Investigación y Desarrollo UACh (S-2011-20) Proyecto 2011-2012 Inv. Responsable
Evaluation of Lolium perenne L. cultivars under grazing conditions New Zealand Agriseeds Ltd. (080806-01/EI) Proyecto 2007-2009 Personal técnico y/o de apoyo
Evaluación de la sustentabilidad de estrategias utilizadas para el mejoramiento de praderas degradadas Privado (Soprole S.A.) (160306-02/EN) Proyecto 2006-2009 Personal técnico y/o de apoyo
“Evaluación de la intensidad de pastoreo sobre atributos productivos y de sustentabilidad en producción de leche” Privado Soprole S.A. (160306-01/EN) Proyecto 2006-2009 Personal técnico y/o de apoyo


NUTRITIONAL STRATEGIES TO IMPROVE NITROGEN USE EFFICIENCY BY GRAZING DAIRY COWS Keim, Juan Pablo; Anrique, René Review ISI SCIELO CHILEAN JOURNAL OF AGRICULTURAL RESEARCH (2011)