A5105519277- Agriculture and Rural Development Research
- Genetic and phenotypic traits in livestock
- Vector-Borne Animal Diseases
- Sustainable Agricultural Systems Analysis
- Neurobiology and Insect Physiology Research
- Reproductive Physiology in Livestock
- Agroforestry and silvopastoral systems
- Agricultural Economics and Policy
- Livestock and Poultry Management
- Animal Behavior and Reproduction
- Toxoplasma gondii Research Studies
- Vector-borne infectious diseases
- Ruminant Nutrition and Digestive Physiology
- Silkworms and Sericulture Research
- Plant and animal studies
- Geography and Environmental Studies in Latin America
- Milk Quality and Mastitis in Dairy Cows
- Sperm and Testicular Function
- Animal Virus Infections Studies
- Meat and Animal Product Quality
- Viral Infections and Vectors
- Rangeland Management and Livestock Ecology
- Reproductive tract infections research
- Environmental and Ecological Studies
- Animal Disease Management and Epidemiology
Ludwig-Maximilians-Universität München
2023-2024
Leiden University
2023
Universidad Nacional
1992-2002
University of California, Davis
1994
Trichomoniasis is a widespread, economically important venereal disease of cattle which causes infertility and abortion. Effective control trichomoniasis has been impeded by the insensitivity traditional diagnostic procedures, require isolation cultivation parasite, Tritrichomonas foetus, from infected cattle. We developed 0.85-kb T. foetus DNA probe identifying conserved sequences in DNAs that were isolated California, Idaho, Nevada, Costa Rica. The hybridized specifically to isolates...
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ABSTRACT: A prospective study was conducted to assess the dynamics of infection and host response Anaplasma marginale in one closed herd dry tropical forest Costa Rica. The subjects were dams their calves born during 1 breeding season (1995‐1996). All cows sampled at 3 month intervals for antibody detection using a competitive ELISA (cELISA) antigen PCR/nonradioactive probe assay. 24 individually identified birth subsequently each PCR cELISA. Ticks from all animals throughout entire period....
Integrating information across sensory modalities enables animals to orchestrate a wide range of complex behaviours. The relative importance placed on one modality over another reflects the reliability cues in particular environment and corresponding differences neural investment. As populations diverge environmental gradients, may shift, favouring divergence investment weight given different modalities. During their closed-forest forest-edge habitats, closely related butterflies Heliconius...
Dual-purpose (milk and beef) farms in the tropics are characterised by 1) a high variability of nutritional management systems, 2) their flexibility to adapt changing conditions. An appropriate characterisation classification these systems is necessary determine efficient sustainable resource strategies according different goals or productive orientation farms. A prospective study for characterising dual purpose Costa Rica was carried out. The dynamics farms, terms intensity orientation,...
The use of mobile applications that global mapping and geolocation technology is varied used in both cars cell phones, the latter being ones with greatest demand by population. Among most we have Waze Google Maps, which help user to determine level traffic a specific region or locate destination, offering shortest route viable. This type presents limitation only routes destinations provided satellites orbit planet show. In case smaller areas, there no complete detail roads paths comprise it...
The growth performance of youngstock has a double effect on the general productivity dual purpose farms. First, it directly influences beef outputs farm, and second; an indirect length non-productive period replacement heifers their subsequent milk production ability. latter been well documented dairy in both temperate tropical conditions. is dependent management intensity productive orientation farm. This paper shows series nutritional factors farming characteristics pre-weaning eighteen...
Dual-purpose (milk and beef) farms in the tropics are characterised by 1) a high variability of nutritional management systems, 2) their flexibility to adapt changing conditions. An appropriate characterisation classification these systems is necessary determine efficient sustainable resource strategies according different goals or productive orientation farms. A prospective study for characterising dual purpose Costa Rica was carried out. The dynamics farms, terms intensity orientation,...
The growth performance of youngstock has a double effect on the general productivity dual purpose farms. First, it directly influences beef outputs farm, and second; an indirect length non-productive period replacement heifers their subsequent milk production ability. latter been well documented dairy in both temperate tropical conditions. is dependent management intensity productive orientation farm. This paper shows series nutritional factors farming characteristics pre-weaning eighteen...