Intake and excretion of water in reindeer - effects of supplements of potassium and bentonite
Supplements of potassium and bentonite are used to reduce absorption and increase excretion of radiocesium in reindeer. In a feeding experiment with 6 reindeer calves the effects of these supplements on water consumption and water excretion were measured. The experiment was made in three separate pa...
| Published in: | Rangifer |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Septentrio Academic Publishing
1988
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| Subjects: | |
| Online Access: | https://doi.org/10.7557/2.8.2.749 https://doaj.org/article/6de0c935d61e405bab99380bcc6e2c91 |
| Summary: | Supplements of potassium and bentonite are used to reduce absorption and increase excretion of radiocesium in reindeer. In a feeding experiment with 6 reindeer calves the effects of these supplements on water consumption and water excretion were measured. The experiment was made in three separate parts. During the first part (period I) the reindeer were fed pellets. Two reindeer god not supplements, two got 15 g K/day and two got 15 g K and 80 g bentonite/day. Supplements of K about doubled both the consumption of water and the excretion of urine. Bentonite gave no additional effect. During a period of 5 days all the reindeer were given 180 g of bentonite/day. The animals had trouble keeping their body temperature and the appetite went down. During period II the reindeer ate lichens in combination with pellets. Two reindeer got no supplements. Two got 23 g bentonite/day and two got 46 g/day. The average intake of water was not affected. Intake of water and excretion of urine was higher during collecting periods in three of the reindeer that had received bentonite. In period II the reindeer fed pellets and supplements of 23 g or 46 g of bentonite/day. The average water consumption was not affected. The intake of water and excretion of urine during collecting periods was higher in two of the three animals that had received the higher amount of bentonite. Supplements of 1% potassium or 3% of bentonite when feeding reindeer for slaughter should not cause any problems if fresh drinking water is available. The supplements cannot be recommended to reindeer on pasture in late winter and early spring. Intag och utsondring av vatten hos renar vid utfodring med foder innehållande tillsatser av kalium eller bentonit. Abstract in Swedish / Sammanfattning: Tillskott av kalium och bentonit anvånds for att minska upptaget och oka utsondringen av radioaktivt cesium hos renar. I ett utfodringsforsok med 6 renkalvar testades också dessa tillsatsers effekt på intaget och utsondringen av vatten. Forsoket utfordes i tre delar. Under ... |
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