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Kopmanis, J., Latvia Univ. of Agriculture, Auce, Gaile, Z., Latvia Univ. of Agriculture, Auce. Proceedings of the Latvia University of Agriculture, 1407-4427. 2010. Latvian.

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investigacion; letonia; desherbage mecanique; weeding; rendement des cultures; weed control; desherbage; research; crop yield; escarda; malezas; latvia; zea mays; herbicide; weeds; herbicidas; rendimiento de cultivos; mechanical methods; herbicides; teneur en matiere seche; contenido de materia seca; escarda mecanica; lettonie; dry matter content; recherche; mauvaise herbe; metodos mecanicos; methode mecanique

Abstract :

Total maize (Zea mays L.) yield failure can be observed due to competition for N, water and light if weeds are not controlled. The aim of the investigation carried out at the Research and Study farm Vecauce (Latvia) during 2006–2008 was to clarify the efficacy of different weed control ways (mechanical and chemical) in maize. Eleven treatments included check without weed control, mechanical we ...

Apenite, I., Latvian Plant Protection Research Centre. Proceedings of the Latvia University of Agriculture, 1407-4427. 2010. Latvian.

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investigacion; pupa; letonia; larvae; meteorological factors; pupae; research; pupe; dynamique des populations; larve; brotes; latvia; pousse; shoots; vegetative period; periode vegetative; dinamica de poblaciones; lettonie; vaccinium macrocarpon; condiciones atmosfericas; population dynamics; recherche; periodo vegetativo; conditions meteorologiques; larvas; dasineura

Abstract :

The cranbery tipworm Dasineura vaccinii S. (Diptera, Cecidomyiidae) dynamics of American large-fruited cranberry (Oxycoccus macrocarpus or Vaccinium macrocarpon (Ait.) Pers.) was studied in the north-east part of Latvia in 2005 and 2006. Main attention was paid to the effect of weather conditions (air temperature, precipitation) on the course of D. vaccinii development stages (eggs, 1st-3rd la ...

Murniece, I., Latvia Univ. of Agriculture, Karklina, D., Latvia Univ. of Agriculture, Galoburda, R., Latvia Univ. of Agriculture, Sabovics, M., Latvia Univ. of Agriculture. Proceedings of the Latvia University of Agriculture, 1407-4427. 2010. English.

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investigacion; potatoes; letonia; color; azucares reductores; amino acids; couleur; storage; acide amine; research; productos de la papa; fritura; friture; reducing sugars; papa; variedades; latvia; frying; stockage; glucose; aminoacidos; almacenamiento; glucosa; fructose; variete; lettonie; sucre reducteur; fructosa; recherche; colour; varieties; pomme de terre; potato products; produit a base de pomme de terre

Abstract :

The Maillard reaction between amino acids and reducing sugars is responsible for the development of colour and taste of fried potato products. The aim of the research was to evaluate the reducing sugars content and subsequently colour intensity of five Latvian potato varieties prepared by common frying methods used in Latvia. The research was carried out on five potato varieties (‘Lenora’, ‘Br ...

Viluma, A., Latvia Univ. of Agriculture, Jonkus, D., Latvia Univ. of Agriculture. Proceedings of the Latvia University of Agriculture, 1407-4427. 2010. Latvian.

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investigacion; breeds (animals); fathers; letonia; race (animal); microsatelites; research; razas (animales); microsatellites; padre; provenance; identification; caballos; latvia; cheval; microsatellite; ressource genetique animale; pere; animal genetic resources; procedencia; lettonie; recursos geneticos animales; identificacion; recherche; horses

Abstract :

The aim of the research was to determine whether the genetic resource - foal of Latvian warmblood horse - is the true descendant of alleged parents by using 17 microsatellite primers' method, and to consider if this method is appropriate for routine parentage testing and identification in genetic resources of Latvian warmblood horse. DNA was extracted from collected blood samples and amplified ...

Sematovica, I., Latvia Univ. of Agriculture, Jemeljanovs, A., Latvia Univ. of Agriculture, Pilmane, M.. Proceedings of the Latvia University of Agriculture, 1407-4427. 2010. Latvian.

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investigacion; periodo perinatal; letonia; endometritis; periode perinatale; research; microbial flora; endometrite; reproductividad; sante animale; latvia; dairy cows; performance de reproduction; flore microbienne; vache laitiere; vacas lecheras; lettonie; blood; recherche; sang; sanidad animal; animal health; reproductive performance; flora microbiana; sangre; perinatal period

Abstract :

Haematological and biochemical analyses of blood as well as bacteriological investigations of uterine lumen and milk were performed for 38 dairy cows in the first and fourth week after parturition. Clinical examination demonstrated that general health of all cows was satisfactory, but laboratory analysis showed serious deviance from the norm. Cows with pathological performance of uterine invol ...

Valdovska, A., Latvia Univ. of Agriculture, Pilmane, M.. Proceedings of the Latvia University of Agriculture, 1407-4427. 2010. Latvian.

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histopatologia; investigacion; letonia; histopathology; maladie aleoutienne du vison; methode statistique; enzymes; higado; minks; histopathologie; research; vison; experimentacion; foie; metodos estadisticos; experimentation; latvia; aleutian disease; enfermedad aleutiana; enzyme; liver; lettonie; hepatitis; blood; recherche; hepatite; sang; enzimas; sangre; statistical methods

Abstract :

The dystrophy of mink liver is widely distributed in mink farms of Latvia. However, clinical diagnostics of the liver dystrophy is quite difficult. The hypothesis of this study was to clarify indicators of ALAT (alanine aminotransferase) and SAP (alkaline phosphatase) as criteria in early diagnostics of mink liver injury. The goal of this study was to determine the potential correlation betwee ...

Bekeris, M., University of Latvia, Grube, M., University of Latvia, Upite, D., University of Latvia, Kaminska, E., University of Latvia, Linde, R., University of Latvia, Pelce, E., University of Latvia, Danilevics, A., University of Latvia, Gavare, M., University of Latvia, Karklina, D., Latvia Univ. of Agriculture. Proceedings of the Latvia University of Agriculture, 1407-4427. 2010. English.

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investigacion; letonia; bacteria; experimentacion in vitro; stomach; maltodextrina; research; maltodextrine; inulin; latvia; estomago; inuline; inulina; in vivo experimentation; experimentation in vivo; lettonie; lactulose; experimentation in vitro; recherche; estomac; lactulosa; in vitro experimentation; bifidobacterium; experimentacion in vivo; maltodextrins

Abstract :

This study was done to evaluate the resistance of 4% water solution of prebiotics (inulin, maltodextrin, and lactulose) and probiotic bacteria Bifidobacterium lactis Bb-12 and Lactobacillus acidophilus in different stomach model environments. The simplest stomach model environment was an HCl water solution and an oat gruel filtrate with 0.46% of solids at pH 2. Fermentations of oat gruel water ...

Kalnina, I., Latvia Univ. of Agriculture, Katane, I., Latvia Univ. of Agriculture. Proceedings of the Latvia University of Agriculture, 1407-4427. 2010. English.

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competitiveness; investigacion; individu; questionnaire; education; letonia; zonas rurales; facteur psychologique; zone urbaine; individuals; psychological factors; research; cuestionarios; opinion publica; factores psicologicos; zone rurale; latvia; comportement humain; enfant en age scolaire; opinion publique; public opinion; rural areas; human behaviour; school children; zonas urbanas; lettonie; urban areas; recherche; individuos; questionnaires; ninos de edad escolar; comportamiento humano; educacion

Abstract :

Since 2005 the authors of the article have carried out the research on ''human competitiveness'' in several stages with the aim: as a result of experimental research to find out the view of the Latvian secondary school pupils about the semantic meaning of the concept ''competitiveness'', as well as the evaluation of competitiveness features (indications) given by the youth. Latvian secondary s ...

Aizsila, A., Latvia Univ. of Agriculture. Proceedings of the Latvia University of Agriculture, 1407-4427. 2010. Latvian.

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investigacion; letonia; formacion de docentes; case studies; teacher training; research; formation des enseignants; universities; latvia; educacion permanente; programme; modernisation; educational policies; modernization; universidades; programmes; lettonie; etude de cas; continuing education; modernizacion; recherche; politique de l'education; universite; education permanente; estudios de casos practicos; programas; politica educacional

Abstract :

The twenty first century is characterized by changes in the life of society. Those changes are caused by the process of globalization and development of science and technology, especially information technologies. With that, the importance of education increases and becomes topical. Participation of Latvia in the global processes of today's world requires essential re-evaluation of the aims an ...

Katane, I., Latvia Univ. of Agriculture, Kruglija, S., Latvia Univ. of Agriculture. Proceedings of the Latvia University of Agriculture, 1407-4427. 2010. English.

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investigacion; letonia; facteurs culturels; formacion de docentes; rural environment; lettonie; cultural factors; sustainability; teacher training; research; formation des enseignants; recherche; sostenibilidad; environnement rural; latvia; factores culturales; durabilite; ambiente rural

Abstract :

In order to ensure a balanced and sustainable development of the varied environment of Latvian schools, the prospective teachers should be ready to integrate into the varied cultural environment of Latvian schools. The education of prospective teachers should be based on ecological approach, which ensures the ecological perspective and an opportunity for students to develop their ecological co ...

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