Pasture based dairy production systems analysis and re-design. Multidisciplinary and interinstitutional scientific approach based on Network for Innovation support with the participation of public (ANII, UdelaR, INIA, LATU, INALE) and private (CONAPROLE) sectors. I am the scientific leader of a 4 year project where animal nutrition, pasture production and utilization, animal reproduction and health are studied during the productive cycle and integrated at farm level using simulation and operative research. I have also research interest on the plan-animal interface studying the feeding strategies that improve efficiency of use of the available resources.
2009 to date. National Research System (Level III) granted by the Honorary Board of the National Research System. 2005. National Contest of Researchers (Level II) granted by the Uruguayan Minister of Agriculture. 2003. National Veterinary Academy Award. 2003. B´NAI B´RITH URUGUAY award. Foundation Prof. Dr. Víctor y Clara Soriano y Filial Oriental. Award “Luz y Verdad” in Dairy Technologies. Montevideo.
Swedish University of Agricultural Sciences, Uppsala, Sweden
Karolinska Institute, Stockholm, Sweden
Swedish University of Agricultural Sciences, Uppsala, Sweden
Veterinary Faculty, University of Uruguay
Professor Ad Hoc Animal Reproduction, University of Massey (since 2016), Member of the International Committee of Animal Reproduction (since 2016), Member of the National Academy of Sciences Uruguay (since 2015), National Veterinary Academy Award (2015 and 2003), Woman in Science LÓreal-Unesco Award (2015), National Research System Level IIII (from 2012), Morosoli Award (2009), Expert for the International Atomic Energy Agency, United Nations (from 2001).
I integrate a research team whose objective is to determine factors that limit the increase of production efficiency in breeding systems and milk production at the level of nutrient metabolism and its regulation in animals subjected to different feeding strategies, seeking to find methods / Low cost and high impact technologies.
Within my lines of research, I work in the topics of stress and animal welfare, ethology, reproduction and social factors in ruminants and other species. In the work we have developed, behavioral, biochemical, hematological, hormonal, reproductive and physiological variables were analyzed in different situations and environmental and social contexts.
Teacher of the Postgraduate Program of the Facultad de Veterinaria – UdelaR (2017). Teacher of the Faculty of Veterinary Medicine and Zootechnics, Faculty of Higher Education Cuautitlán, Institute of Biomedical Research, UNAM, Faculty of Veterinary Medicine and Zootechnics, Faculty of Veterinary Medicine and Zootechnics, Master and Doctoral Program in Production Sciences and Animal Health, Mexico (2017). National Veterinary Academy Award (2009). National Research System Level I (SNI, since 2015). Total Dedication (DT), Faculty of Veterinary Medicine, UdelaR (since 2012). First prize at the IV Congress of the Uruguayan Association of Animal Production (AUPA, 2012). Award for work presented in posters by graduate students in the 46th Congress of the International Society for Applied Ethology, Austria (2012). Prize at the IV Brazilian Congress of Bioethics and Animal Welfare, Brazil (2017). Member of the Latin American Veterinary Association of Zoopsychiatry (2017). Member of the Society of Veterinary Medicine of Uruguay (2017). Member of the Steering Committee of the Uruguayan Society of Biochemistry and Molecular Biology (SBBM, since 2013). Member of the Board of Directors of the Uruguayan Society of Biosciences (SUB, 2017). Counsellor of the Faculty of Veterinary Medicine (2010-2014, 2014-2018).
Because of the importance of the dairy industry for the Uruguayan economy, the complexity of the dairy management systems and the increase of the intensification process, it is of highly interest to study problems related to dairy systems using an operational research focus to enrich traditional agronomy approaches.
Particularly we are working in the problem of food resources allocation in pastoral based dairy systems. The food resource allocation to a dairy herd consists in determining how to distribute the available resources in order to maximize or minimize different objectives, like dairy production or the economic benefit (we refer to economic benefit as the margin over feeding cost for the entire system). Those resources are different food types located in field areas and associated with a certain availability of dry matter and energy, that must be allocated to different types of cows, therefore we need to determine how to distribute each cow (for feeding purposes) considering their characteristics.
In order to solve the presented problem, we are using exact and heuristic techniques.
I am working with Dr. Juan Pablo Damian (supervisor) to study animal behavior in dairy cattle in different management and feeding systems (TMR-Mixed Systems: TMR-Grazing) and how these systems affect their behavior, milk production and quality, and blood biochemistry. During 2017, we have presented several papers in congresses on this subject.
Since 2009, I have worked on several projects on hygienic sanitary quality of milk. In 2016 defended my Master thesis “Quality characterization of the milk bulk tank of dairy farms in the different season in the north coast region of Uruguay; effect of Storage Time and herd size on the hygienic-sanitary quality”.
About, goat milk I have carried out projects on methods of preserving milk and the effect on quality (effect of freezing on lipid and protein oxidation) (Responsible: initiation CSIC-2009), as well as the study of technological properties of goat milk (using Optigraph), where I was part of the team that tuned and validated the technique for this species. During these years, I have supervised several undergraduate students along these lines. The project on hygienic and sanitary quality in goat milk was the first to isolate pathogenic microorganisms in the country, data that have been published in national arbitrary magazines.
Starting from previous studies of efficiency in the use of food and on the basis of the importance of mitochondria in the production of cellular energy, which has been proposed the hypothesis that differences in mitochondrial functional activity can contribute to the differences observed between the animals in their expression of food efficiency. In this sense, there are efforts of specialists from the Faculties of Agronomy, Veterinary Medicine and Medicine to study the impact of nutrition on grazing cattle in different physiological / nutritional situations on the efficiency in the use of energy, mitochondrial function and its consequences ( oxidative stress). Specifically, we are working on the effect of different nutritional levels (forage offerings) on liver mitochondrial function (gene expression and enzymatic activity of respiratory complexes, antioxidant system, ion transport, mitochondrial function and its consequences throughout the productive cycle annual in cattle.
It has been contributed to generate knowledge in lines of work that are related and that analyze at different levels hierarchical impacts of proposed technologies for animal production systems in our country, with an integral and interdisciplinary approach
a) Plant-Animal-Supplement Relationship Experiments have been conducted and are studying the effect of the supplementation and the forage base on the parameters that determine the efficiency of the process. We have recently started studies in terms of the impact of using agro-industrial by-products the metabolism of the dairy cow.
b) Evaluation of ruminant feed by integrating the dynamic character of the process of nutrient utilization with the discontinuous character of the feed under grazing. The results obtained can be used in simulation models - of the expected animal performance, as well as in models of environmental impact assessments.
In this line, we have also contributed to evaluate alternatives for the conservation of forages and / or industrial by-products that improve complementation with the base diet and / or minimize the losses that occur as a result of the conservation process.
I am dedicated to the paraclinical analysis and diagnosis, research and teaching in the area of metabolism, endocrinology and peripartum diseases in dairy cows.
I am responsible for the service of Metabolic Profiles in ruminants offered by the Nuclear Techniques Lab, also providing advice to those who request it on the correct execution of them and interpretation of results.
I am currently doing my PhD study in the area of ANIMAL HEALTH. The purpose of my research is to link metabolic-nutritional status to the incidence of peripartum diseases in the dairy cow, looking for early (economic) metabolic (inflammatory and metabolic) markers in order to promote the use of preventive medicine in dairy farms. .
The research area of my work is Ruminant Nutrition. It has been investigated in nutritional evaluation of pastures and by-products commonly used in our country, quantifying the availability of nutrients at gastro-intestinal tract level (methodological aspects and generation of nutritional information). It has contributed to generate information about efficiency indicators of grazing animals through the study of molecular markers. We have recently started studies in metabolic and molecular aspects related to feed intake regulation in grazing animals.
We have developed a line of research that aims to determine the limiting factors of increased production efficiency (meat and milk) at the level of nutrient metabolism and seek methods / technologies that lift these limitations. The liver, due to its anatomical location, has a great influence on the profile and contribution of absorbed nutrients that can be used in the productive processes since the nutrients must first pass through the liver before reaching the peripheral tissues where they will be used for milk production and muscle synthesis. In particular, the emphasis is placed on the control of liver function and on nutrition-genetic interactions in the last third of gestation and lactation in milk and meat cows and in replacement animals. We have also participated in research in the breeding area of the dairy cow. We have recently started studies in the area of food efficiency evaluating energy costs both at the level of the organism and at the level of cellular / molecular mechanisms.
My area of specialization is in reproductive management of dairy herds. My interest is in the generation of knowledge that facilitates the understanding and management of milk production systems. I have focused on the generation of a work methodology that simplifies the work of people on the farm and maximizes productive and reproductive results. In that framework, I have investigated the productive and reproductive potential of the Holando americano and Holando neocelandez biotypes. One of the aims of my work is to integrate the information of the systems (food, production, reproduction and health) to make the pertinent recommendations and contribute to the training of dairy workers.
Swedish University of Agricultural Sciences, Uppsala, Suecia FRVCS,MSc and Lic.Vet.Med
Swedish University of AgriculturalSciences, Uppsala, Suecia Bachelor
Veterinary Faculty, University of Uruguay
Reproductive biotechnologies in andrology and gynecology. Reproductive response and animal health are linked to the lines of research in feeding and production of dairy cattle. The monitoring of reproductive parameters of animals in different feeding strategies. Validation of reproductive management strategies (synchronization and IATF) combined with food and health.
Veterinarian, Academic Coordinator: Technologist in Management of Dairy Production Systems, UTEC (Technological University). Professor at the Faculty of Agricultural Sciences of the Universidad de la Empresa.
Phone: + 598 99226092
I have contributed to the generation of original knowledge on foot problems and its impact on animal welfare and milk production in milk production systems in our country, focusing on the analysis of some risk factors that affect the presentation of the disease. In addition, I have specialized in the formation of human capital, in the understanding that it is the factor that has more weight in the performance of the dairy company. My current interest lies in understanding what elements of human capital make decision making in dairy companies and in the design and development of applied methodologies, teaching, communication and management of people at the dairy level.
Associate Professor, Department of Health in Livestock Systems, Pathology and clinic of ruminants, Faculty of Veterinary Medicine, University of the Republic.
Phone: + 598 99 300 481
I have participated in the generation of information regarding the metabolism, production and reproduction of the dairy cow, studying different aspects such as feeding systems (feed ad libitum and grazing systems), the effect of the animal category and the body condition score at calving. We have recently started studies on dairy cow’s health and the functionality of the immune system in transition period and early lactation. Also I worked in
As a master thesis project, I have been working on milk production and composition, specifically on fatty acid profiles in milk from cows under different feeding strategies. In this process of training and in the approach to the dairy sector I have been generating interest towards udder health and milk quality, in this sense, I seek to continue with the development of my training in combination with extension work at the primary production level.
I have collaborated in research projects in pastoral systems with sowed and native pastures (Campos), with growing, dairy and beef cattle as animal model. My postgraduate research centers in the effect of the herbage allowance of native pastures in the efficiency of use of the forage for primiparous beef cows. The project digs into the relation of the process of production, utilization and conversion of forage in animal product (pregnancy, weight of the calf and production of meat for area) in a ecosystem with elevated climate variability.
At this moment I am researching on reproductive physiology and metabolism in sheep. The main objective of these studies is to contribute to knowledge regarding the factors that affect embryonic survival, with emphasis on metabolic endocrinology and gene expression in the embryo and reproductive tract. In this way it is expected to contribute to the development of a relevant and incipient area in our country: embryonic mortality in ruminants.
The work is aimed at quantifying and understanding the mechanisms that define the production and use of forages by grazing ruminants. Ruminant producers of beef and milk under grazing of native and sown pastures are used as a study model. The aim is to harmonize the growth of animal production with the environmental and economic sustainability of Uruguay's beef and milk production systems. The main challenges and problems are summarized in: a) Find ways to improve animal production and reduce the unit costs of production based on a technical change that prioritizes the application of precision technology and does not overuse the inputs derived from oil; b) Link the grazing animal production with the industrialization of the product in order to improve the added value of the same based on the 'denomcón de origen' Uruguay in grazing; c) Link the growth of meat and milk production with the other sectors of agriculture and the economy in general in order to contribute to a harmonious development of agriculture in the national economic and environmental context e) Contribute to improve competitiveness to the maintenance of the production of meat and milk, its complementarity and its productive perennity through family and business production units that contribute to maintaining the socio-productive heterogeneity of Uruguay. Pasture experiments and integrated research are carried out by consortia located in the country (Nutrition and Animal Metabolism) (Nuclear Techniques), Brazil
(Ecolofiiología), remote sensing (Argentibna tina, Geostatistics (USA) which have contributed to the study in a hierarchical and mechanistic way of the pastoral ecosystems of Uruguay.
Zootecnia Universidade Estadual Paulista, Campus de Jaboticabal, UNESP. SP. Brasil MSc
Maestria en Ciencia Animal e Pastagens. Esola Superior de Agricultura Luiz de Queiroz, ESALQ-USP, SP.Brasil Bachelor
Agronomy Faculty - UdelaR, Uruguay
My interest and work has been focused on the productive and economic analysis of dairy companies, with special emphasis on the specific contribution of the animal biotype. I have contributed to generate original knowledge regarding the productive and reproductive performance of different biotypes (Holando Uruguayo, HolandoNeocelandez, Jersey, Red and White Swedish crosses) in the milk exploitation system that I manage. The search and identification of the biotype that best adapts to our system seeks to facilitate the management of rodeo making the system sustainable in the long term from the human, productive and economic point of view.
Thesis work "Estimating energy expenditure in dairy cows with different feeding strategies" within the framework of the project "Intensification strategies for competitive and sustainable milk production systems".
Our work is focused in improving the use of resources to a better production processes control and looking forward to understand mechanisms involved.
Specifically studying relationships among pasture available with production and use of it; with emphasis in grazing and behavior linking them with ingestion/digestion and management of the feed sources in grazing.
Understand and looking the different mechanisms related with the earlier step that include efficiency and energy destination compared grazing or housing systems searching advantages and opportunities of our grazing systems.
In the last period we work with special focus in adjust and well operational equipment and methodology that allow evaluate the previous statements in our conditions and taking in account the necessity to work with a wide and multidisciplinary field.
I hope to contribute to the dairy in our country by providing new information on the impact and casuistry
of peripartum diseases in dairy cows and to study their behavior according to different variables. It is expected to generate knowledge regarding some risk factors that may affect the presentation of peripartum diseases and their relation to reproduction.
My main line of research has focused on the study of the endocrine-metabolic response and the reproductive tract in sheep subjected to a food restriction; these responses may depend on the recent metabolic history (feeding level) or older (body reserves) of the animals. An interesting finding of these works and that led us to the current line of research, was to have found differential endocrine-metabolic responses to the same food restriction in animals with different bodily reserves (body condition). In the endocrinology area of the dairy cow we studied productive, reproductive and endocrine-metabolic parameters in different dairy biotypes (Holando Americano vs. Holando New Zealand).
Master thesis work on "Total consumption, consumption rate and milk production of dairy cows under different intensities of fescue defoliation in spring". The focus of this work is on the plant-animal relationship, in search of the best pasture and animal performance strategy.
It is expected to generate data that answer the following questions:
How do decisions made in the daily routine linked to grazing management, level and type of supplementation, access times to different food resources and infrastructure conditions affect fresh pasture intake by cows, the level of inclusion of the different foodstuffs in the diet and the economic feeding margin in commercial dairy herds?
Is there a link between pre and postpartum feeding management with reproductive efficiency and animal health in commercial milk production systems and what impact does it have?
Currently I am working as a responsable on the experiment ¨Stocking rate x grazing manajement¨ at CRS (Agronomy Faculty). This study intent to explain how high stocking rate on grazing dairy farm systems (1,5 cow/ha and 2,0 cow/ha) affetct de primary production, and animal perfomance, with constrasting grazing management on pastures. It is a long term investigation on ¨Farmlet¨ model that simulated real grazing systems conditions. Besides I am working in my MSc (in progress) related to the aplication of different instruments and methodologies to estimate grass production. The study attempt to use remote sensyng as a tool that helps grazing decisions, to improve the forrage utilization grazing dairy farms systems.
The Master's project research focuses on feed intake regulation signals within a small and short spatio-temporal scale in grazing dairy cows. The specific objective of the research is to quantify signals of nutrient hepatic oxidation and to relate them with grazing behavior and endocrine-hormonal pattern of dairy cows, considering the animal's energy demand (parity) and its environment (type of diet). In this context, understanding the mechanisms of feed intake regulation will contribute to the design feeding strategies that optimize energy intake in grazing dairy systems, tending to minimize negative energy balance, prevent metabolic disorders and improve productive performance, reproductive and health conditions of the animal.
My research has been centered in studying the molecular mechanisms underlying energy efficiency in dairy cattle. In particular, we study energy production in the cell, the activity and expression of key metabolic enzymes and the post-translational modifications responsible of regulating them.
I have focused on both academic and professional work in Ruminant Nutrition. In my MSc and PhD I have deepened the use of Sorghum Grain for feeding Ruminants. Currently I am Coordinator of Component I: Feeding Strategies: a comprehensive look at the animal potential of dairy cows grazing on the Sectorial Technology Network. I work as a nutritionist in intensive dairy and beef production systems.
National Veterinary Academy 2016 Awards: First Prize PhD Thesis. Academia Nacional de Veterinaria 2010 Awards: Special Mention MSc Thesis. National Research System Level I (from 2015). Professor of postgraduate program of Veterinary Faculty UdelaR (from 2016). Member of the Executive Committeea of Specialized Subsidiary in Animal Nutrition of SMVU (since 2015).