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Yields and the nutritive value of early harvested common bean (Phaseolus vulgaris L.) crop residues for ruminants
2021
Dejene, M. | Dixon, R.M. | Duncan, Alan J. | Walsh, K.B. | McNeill, D. | Woldemeskel, Endalkachew
Genetic parameters for reproduction traits and correlation with pre weaning growth traits of Fogera cattle at Metekel ranch, north west Ethiopia
2017
Bekele, A. | Wuletaw, Z. | Haile, Aynalem | Gizaw, Solomon | Mekuriaw, Getinet
The objective of this study was to estimate genetic parameters of reproduction traits of pure Fogera cattle at Metekel Ranch. Metekel cattle Breeding and Improvement Ranch has so far been engaged in maintenance of Fogera cattle population outside their adapted environment (ex-situ conservation). The breeding program has two components: selection and crossbreeding. The establishment of the pure breed unit is meant for the improvement of the Fogera breed and for providing heifers to cross- breed to exotic dairy sires (by Artificial insemination). In cross breeding program; crossbred animals are produced through artificial insemination of Fogera cows with Friesian semen. Around three to six months of pregnancy, the F1 cross heifers are sold to farmers for milk production (Melaku et al., 2011a, b). Very recently the ranch started to distribute non pregnant F1 cross heifers. WOMBAT software was used to estimate genetic parameters. The variance components and heritability were estimated using a Uni-variate animal model using four models which fitted direct additive, dam genetic and permanent environmental effect as a random effect and the fixed effects (year, season, sex and parity). Parameter of age at first calving (AFC) were estimated using Model 1 (Y= Xb + Z1a + e), Model2 (Y= Xb + Z1a + Z3c + e), Model3 (Y= Xb + Z1a + Z2m + e (cova, m = 0), and Model4 (Y= Xb + Z1a + Z2m + Z3c + e (cova, m = 0) whereas parameters of reproductive traits including gestation length (GL), calving interval (CI) and days open (DO) were estimated using model 2 and 4 which fit permanent environmental effect due to repeated records per cow. Correlations (genetic and phenotypic) among the different traits were estimated from bi--variate analysis by using model 1 for growth traits and AFC and model 2 to estimate the correlation between CI, GL and DO and birth weight (BWT) and GL. Correlation between birth weight and gestation length were estimated by treating gestation length as a trait of calf. Due to record limitation correlation between AFC with other reproductive traits were not estimated. Estimates of direct heritability of reproductive performance traits from the best model were 0.003 ± 0.05 for AFC, 0.00 ± 0.03 for GL and CI and 0.013 ± 0.03 for DO. The phenotypic correlations between reproductive traits were 0.003 ± 0.034 for CI and GL, 0.37 ± 0.041 for CI and DO and 0.167 ± 0.036 for DO and GL and the genetic correlation between reproductive traits ranged from -0.94 ± 0.2 for DO and GL to 0.83 ± 0.579 for CI and DO. Genetic correlation between growth and AFC ranged from 0.77 ± 0.24 for BWT and AFC to 0.87 ± 0.03 for pre-weaning average daily gain (PADG) and AFC. The phenotypic and genetic correlations between BWT and GL were 0.03 ± 0.05 and -0.84 ± 0.013 respectively. The results of genetic correlation between considered traits was ranged from moderate to high and it indicates that selection for one trait would have a significant effect on the other traits not considered however selection must be done with caution. The heritability estimates confirmed the presence of high environmental effect among the study population and it masks the individual animal genetic difference. Given the low heritability estimates obtained, effective improvement in reproduction performance of Fogera cattle could be achieved by improving the production conditions and through crossbreeding.
显示更多 [+] 显示较少 [-]Financing mechanisms for research institutes in the field of agriculture in Latvia
2010
Mezeniece, M., Latvia Univ. of Agriculture, Jelgava (Latvia) | Feifere, S., University of Latvia, Riga (Latvia) | Rivza, B., Latvia Univ. of Agriculture, Jelgava (Latvia)
Latvia is a territorially small country with small open economy, and its main and the most competitive recourses are highly educated society and well developed science which is based on research, innovation and modern technologies. To create a well functioning innovation system as a part of knowledge-based economy, several conditions has to be met to insure that all parts of national innovation system effectively work together. This article is dedicated to analysis of financing mechanisms that can be used by research institutes in the field of agriculture in Latvia to ensure sustainable rural development. The research in the field of agriculture in Latvia is mainly performed by the state research institutes and research agencies of Latvia University of Agriculture. To provide favourable environment for development of research and science, there is set legislation framework and financing mechanisms such as base financing from the state budget, state research programmes, European Commission Framework Programmes, and the European Union (EU) Structural Funds assistance. The analysis has shown that support of EU Structural funds has positive impact on number of applied research carried out in research institutes in the field of agriculture in Latvia. EU Structural funds assistance helps to develop fundamental research activities and innovative approach to the science that is one of the preconditions for the development of states' competitiveness. In conclusion, the authors resume that it is necessary to establish a strong link between higher education institutions, research institutes, and entrepreneurs in the process of building effectively working national innovation system.
显示更多 [+] 显示较少 [-]Innovation capacity - problems and solutions for successful development
2010
Lukjanska, R., Riga Technical Univ. (Latvia)
Innovation capacity has to be viewed as a consequence of properly operating innovation system. Well established and functioning innovation system is a result of enhanced by government innovation policy. In comparison with other European Union (EU 27) countries, innovation capacity indicators in Latvia remain low and considerably underperform, reflected in the 'European Innovation Scoreboard 2008', where Latvia took the 30th place among 32 countries. Problems and solutions are illustrated to represent innovation capacity in Latvia. This article consists of the following parts: first - theoretical aspects are selected to describe the essential definition of the analyzed subject. In the second part, experience from abroad is described, at the end – Latvian innovation policy and situation is analyzed and suggestions for further needs are formulated. The main results of analysis show that only a few elements of innovation capacity building are functioning at Latvian enterprises, whose aim is to build a base for the innovation capacity of the country.
显示更多 [+] 显示较少 [-]Rural-urban and regional approach comparing human values in Latvia
2010
Bolinskis, G., Data Serviss, Riga (Latvia) | Butkevics, E., Riga Technical Univ. (Latvia)
Regional development should not be a unified process even for a small country such as Latvia. There is a stereotype that people living in big cities and rural areas differ in their values and behaviour. This study compares the human values of Riga, the Riga district urban area and different rural regions in Latvia. During the last three years - 2007, 2008 and 2009 the survey of 1450 inhabitants showed no substantial difference in peoples' social values; comparing rural and urban locations. Rather, a noticeable difference in human values between people living in different regions of Latvia was observed. It was also observed that the set of values expands in different directions over time, forcing a future increase in fragmentation and segmentation of the population in the country.
显示更多 [+] 显示较少 [-]Innovative composition poultry products production
2010
Cerina, S., Latvia Univ. of Agriculture, Jelgava (Latvia);Latvian State Inst. of Agrarian Economics, Riga (Latvia)
The production of innovative composition (high omega group fatty acids and antioxidants-carotenoids) broiler chicken meat and egg opportunities in Latvia was assessed. After feeding the poultry with feed enriched with fatty acids and antioxidants, broiler meat and eggs of innovative composition containing a higher amount of omega-3 (in meat by 1.7%, in eggs by 2.7%), omega-6 (in meat by 3.9%, in eggs by 3.2%) and carotenoids (0.44 mg kg-1 in meat and in eggs by 6.9 mg kg-1) when compared with the content of commercial products are obtained. Nutrition costs of innovative composition-based broiler chicken meat production are LVL 20 higher and nutrition costs of egg production are LVL 1.49 higher per 1000 units of output than in the standard version of the poultry feeding-stuff. The poultry farming production of an innovative composition, however, is economically profitable due to the higher rates of poultry productivity. In the case of an innovative composition-based yield the potential profit at the currently equal cost realisation of poultry meat and eggs is higher when calculating 293.47 LVL per 1000 broiler chickens and 5.52 LVL per 1000 eggs in comparison with commercial production.
显示更多 [+] 显示较少 [-]Historical development of blood donor movement and its economical impact in Latvia and worldwide
2010
Mistre, Z., Latvia Univ. of Agriculture, Jelgava (Latvia)
Health care has an important role in regional economic and politic development because human life and health is the only criterion and prerequisite for any other value. If for any reason human loses more than 20% of his blood, he is not able to join in economic actions and is under a risk of dying. That is why economic development loses human resources. In case of losing blood, human life can be saved only by donor blood, since synthetic blood replacements have not been discovered yet. In this paper, historical development of blood donor movement as an aspect of economic development has been researched. Experiments, failures and scientific discoveries in blood transmission history have also influenced world economic history. Based on historical literature in Latvia and eye witness stories, historical development of blood donor movement in Latvia as well as its role in health care as a part of economics is studied in this paper.
显示更多 [+] 显示较少 [-]The influence of neogene lithology on the Lithuanian river hydrologic regime
2010
Litvinaitis, A., Vilnius Gediminas Technical Univ. (Lithuania) | Saulys, V., Vilnius Gediminas Technical Univ. (Lithuania) | Bagdziunaite-Litvinaitiene, L., Vilnius Gediminas Technical Univ. (Lithuania)
Due to the recently increasing frequency of extreme changes in river runoff regime, scientific literature deals with the characteristics of runoff formation. Works are carried out in analyzing climate changes and a lot of attention falls on land–use structures. Following thorough analysis of the lithological structure of river basins in separate costal zones, this article aims at evaluating river runoff formation characteristics. The basin lithological factor was calculated based on Quaternary map of Lithuania M 1:200000 and Lithuanian river map M 1:50000 using ArcGis software. In order to carry out more thorough analysis of the influence of lithology in given territories, sections of 0–20 m, 50–200 m, 200–500 m, 500–800 m, 800–1000 m and is greater than 1000 m were established, calculating the distance in meters from the riverbank. Eight river basins of typical lithological structure (sandy, loamy, argillaceous) were selected and examined. The period of the years 1960–2007 was analyzed as this period saw the greatest amount of precipitation (up to 33% probability), and relation between the runoff and precipitation was established as well as that with the lithological structure, established following the derivation of a hydromodule.
显示更多 [+] 显示较少 [-]Landscape classification of the Lielupe River valley - humans' use of river landscape and landscape elements
2010
Purs, I., Latvia Univ. of Agriculture, Jelgava (Latvia)
Civilization has historically flourished around rivers. There exists invisible and visible social activity system in the river landscape. With the world's economical, technological and social development, a focus on meeting human needs is vital. There is a need of a reinterpretation of landscapes' functions and revision of archetypes. The proposed approach is search for design of lifestyle versus design for territory. The research is based on the Lielupe river case study. The aim of the on-going research is search for approach to solve individuals' role of the river landscape. The task of this paper is to identify types of individuals' use of river landscape. Data collection was performed both from individuals' prospectus of use of landscape and from the functional use of river as a landscape object supplementing data both ways. I investigated it by analyzing intuitive images, making of an observation of people's habits, behaviours and occupations, and by cartographic analysis. At this stage of research there were observed seventeen groups of functions in the landscape of the Lielupe river valley, characterized by wide range of actions, described by landscape elements, and organised in social groups. These data are assessed by grading of their influence on landscape and its participants. Sixteen marginal grades were detected. This highlights a high potential for development of river landscape with an individual's participation in it. The further investigation is to develop ergonomic and functional planning principles for each type of interest group to compromise the individuals' needs.
显示更多 [+] 显示较少 [-]Development of public art in the urban space: expressions and potential
2010
Alle, E., Latvia Univ. of Agriculture, Jelgava (Latvia)
The research deals with public art, and its related discourses. The particular focus of the paper is on investigating how public art can be a resistant or controversial part of the urban space. The first part of the paper describes the historic development of public art through time. Subsequently, the discussion goes on to the main aspects which dominate art in the public, urban space. We focus on the site-specificity realm, sculpture and installation, the role of public art in urban regeneration as well as influences in society. Today, it is argued that public art shifts its focus from object to process, from artist to audience, and that the artwork becomes part of city development policies, approaches to people’s everyday life. Currently the quest of contemporary public art becomes one of the main subjects to explore and find definitions for. The methodology used in this paper is descriptive, based in a historical point of view. The aim of this research is to find out the main development lines of public art, trying to answer questions such as: how is public art expressed in the urban space realm? What is its potential?
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