7 Works

Factors Influencing the Quality of Frozen/Thawed Semen from Estonian Holstein AI Bulls, and Relationships between Semen Quality Parameters and in vivo Fertility

Peeter Padrik
At present, dairy farming is definitely the most profitable sector of Estonia’s cattle industry. The effectiveness of milk production is dependent not only on the availability of high-quality genetic material but also on several other factors, including the quality of frozen bull semen. The purpose of this research was to assess the effect of different factors such as age, the proportion of Holstein genes, and season of the year on the quality of semen collected...

Data from: The use of cattle Bos taurus for restoring and maintaining holarctic landscapes: conclusions from a long-term study (1946-2017) in northern England

Stephen J. G. Hall & Robert G. H. Bunce
Cattle Bos taurus can perform valuable ecological functions in the maintenance of high nature value (HNV) pastoral systems. They have also attracted attention as potentially filling the ecological niches of megaherbivores, notably the extinct aurochs Bos primigenius, in rewilding initiatives. Native cattle breeds are recognized under the 1992 Rio Convention as components of biodiversity. They are used in HNV settings, but their conservation as breeds has rarely been an important consideration for their management in...

Data from: Patterns of modern pollen and plant richness across northern Europe

Triin Reitalu, Anne E. Bjune, Ansis Blaus, Thomas Giesecke, Aveliina Helm, Isabelle Matthias, Sylvia H. Peglar, J. Sakari Salonen, Heikki Seppa, Vivika Väli & H. John B. Birks
1. Sedimentary pollen offers excellent opportunities to reconstruct vegetation changes over past millennia. Number of different pollen taxa or pollen richness is used to characterise past plant richness. To improve the interpretation of sedimentary pollen richness, it is essential to understand the relationship between pollen and plant richness in contemporary landscapes. This study presents a regional-scale comparison of pollen and plant richness from northern Europe and evaluates the importance of environmental variables on pollen and...

Data from: Canopy leaf area index at its higher end: dissection of structural controls from leaf to canopy scales in bryophytes

Ülo Niinemets & Mari Tobias
There is evidence that mosses with miniature foliage elements have extremely large leaf area indices (LAI), but it is unclear what canopy traits are responsible for these high LAI values in architecturally divergent mosses, and how the inherent tradeoffs limiting maximum LAI in vascular plants can be overcome in mosses. To determine the quantitative significance of different traits in determining LAI, we developed a method to dissect LAI into underlying functionally dependent constituent traits at...

Impact of Gastrointestinal Protozoan Infections on the Acute Phase Response in Neonatal Ruminants

Tarmo Niine
After birth, neonatal ruminants go through crucial and sensitive period of rapid development and growth. During this period, they may interact with variety of microorganisms found in the surrounding environment. It would be beneficial for both the farmer and the veterinarian to have general biomarkers, useful in managing of this adaptation process. Such a tool could help in improving the prediction of the animals’ performance in the herd. The interactions between the ruminant and infectious...

Marketing și dezvoltarea produsului

Tiiu Ohvril & Birgit Maasing
Dragi cititori, Această lucrare este publicată ca urmare a unui proiect implementat în Republica Moldova de către Universitatea Estoniană de Științe ale Vieții. Rezultatul primului proiect a fost o carte care a oferit o imagine de ansamblu asupra diversificării economiei rurale estoniene. Ulterior, partenerii proiectului au dorit să afle mai multe despre experiențele specifice de dezvoltare a produselor și despre problemele micilor producători estonieni. De fapt, două tipuri de agricultură se pot încadra într-o țară...

Catchment properties and the photosynthetic trait composition of freshwater plant communities

Lars Lønsmann Iversen, A. Winkel, L. Baastrup-Spohr, A. B. Hinke, J. Alahuhta, A. Baattrup-Pedersen, S. Birk, P. Brodersen, P. A. Chambers, F. Ecke, T. Feldmann, D. Gebler, J. Heino, T. S. Jespersen, S. J. Moe, T. Riis, L. Sass, O. Vestergaard, S. C. Maberly, K. Sand-Jensen & O. Pedersen
Unlike in land plants, photosynthesis in many aquatic plants relies on bicarbonate in addition to carbon dioxide (CO2) to compensate for the low diffusivity and potential depletion of CO2 in water. Concentrations of bicarbonate and CO2 vary greatly with catchment geology. In this study, we investigate whether there is a link between these concentrations and the frequency of freshwater plants possessing the bicarbonate use trait. We show, globally, that the frequency of plant species with...

Registration Year

  • 2019

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  • Estonian University of Life Sciences
  • Centre for Ecology and Hydrology
  • Finnish Environment Institute
  • United Nations Environment Programme
  • Aarhus University
  • University of Göttingen
  • Environment Canada
  • Swedish University of Agricultural Sciences
  • University of Copenhagen
  • Arizona State University