Baltic Sea water as drinking water for cattle

Background

Due to periodic water shortages in some parts of Sweden where there are many cattle, there is a need to investigate alternative sources of drinking water. Farmers grazing along the Baltic coast use Baltic Sea water as a source of water for their animals. According to their experience over several years, there are no clear health risks. Results from previous studies show that ruminants can cope with drinking water with a certain salt content without adverse effects. In this study, we want to investigate the effects of Baltic Sea water on the health and production response of beef cattle and their calves.

Goal

The aim of the project is to explore whether it is possible to use Baltic Sea water as an alternative water source for cattle during times of water scarcity.

Project description

In this study, we want to investigate the effects of the Baltic Sea water on the health and production of beef cows with calves. We will follow two groups, one with and one without access to the Baltic Sea, for a grazing period of at least three months. We will take samples (faeces and urine), weigh all animals and make behavioral observations. We will also take water samples and grazing samples every three weeks.

The project is a collaboration between SLU, SustAinimal and Hargs Bruk and is financed by Formas.

Specifications

We are looking for you who are careful, can work both independently and in a group. Previous experience with cows is an advantage, but not a requirement. The project is suitable for master students.

If you are interested in the project, please contact PhD student Lea Managos (lea.managos@slu.se) or project manager Anna Jansson (anna.jansson@slu.se).

Location of the project

Hargs Bruk (Löhammar - located about 70 km east-northeast of Uppsala).

Timetable

Summer/fall 2025.  Animal sampling will take place at the beginning, middle and end of the trial period. Water and pasture samples are taken every three weeks during the trial period.