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Effect of Evening Primrose Oil as Food Supplement on Reproduction in the Mink

Inverkan av jättenattljusolja som fodertillsats på reproduktionsresultat hos mink.

Acta Veterinaria Scandinavica volume 32, pages 337–344 (1991)Cite this article

Abstract

The effects of addition of evening primrose oil (EPO) to a mink diet in the breeding season on the reproductive performance and kit and female performance during the lactation period were investigated in an experiment with 4 groups of male and female mink. Matings were carried out so that control males were mated to both control and supplemented females. Similarly, supplemented males mated both control and supplemented females. Reproductive results were evaluated both on a group basis and as an effect of male or female treatment, respectively. After males supplemented with EPO, there was a tendency for reduced rate of stillborn kits and kit losses during the first 21 days of life. These effects could not be explained physiologically. Female treatment did not affect reproductive performance, but there was a tendency for lower weight losses during lactation for EPO-supplemented females. Kit performance during the lactation period was independent of experimental treatment.

Sammanfattning

Inverkan av tillsats av jättenattljusolja till en foderblanding för mink under reproduktionsperioden på reproduktionsresultat, valptillväxt och honornas viktutveckling under laktationsperioden har undersökts i ett försök med 4 grupper av mink. Kontrollhanar parades med såval kontrollhonor som supplementerade honor. På motsvarande sätt parade supplementerade hanar både kontrollhonor och supplementerade honor. Reproduktionsresultaten utvär-derades såväl gruppvis som i relation till hanarnas resp. honornas försöksbehandling. Det fanns en tendens till sänkt frekvens valpar registrerade som dödfödda och valpförluster de 21 första levnadsdygnen efter supplementerade hanar. Dessa effekter kunde ej förklaras fysiologiskt. Honornas försöksbehandling inverkade ej på reproduktionsresultatet, men det fanns en tendens till mindre viktförluster under digivningsperioden för supplementerade honor. Valptillväxten under försöksperioden var oberoende av försöksbehandlingen.

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Authors and Affiliations

  1. Department of Animal Nutrition and Management, Funbo-Lövsta Research Station and Department of Clinical Chemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden

    Anne-Helene Tauson, Maria Neil & Mats Forsberg

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  1. Anne-Helene Tauson
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  2. Maria Neil
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  3. Mats Forsberg
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Tauson, AH., Neil, M. & Forsberg, M. Effect of Evening Primrose Oil as Food Supplement on Reproduction in the Mink. Acta Vet Scand 32, 337–344 (1991). https://doi.org/10.1186/BF03546963

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Acta Veterinaria Scandinavica

ISSN: 1751-0147