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The Effect of Concentrate Feeding on Calcium Metabolism and Plasma Gastrin Concentration in Parturient Cows

Effekten kraftfoderutfodring på kalciummetabolismen och plasma-gastrinkoncentrationen hos kor vid kalvningen

Acta Veterinaria Scandinavica volume 20, pages 546–554 (1979)Cite this article

Abstract

The effect of concentrate feeding on calcium metabolism was studied in pregnant cows. The concentrate (5 kg/day) was added to the diet about three weeks before expected calving. A control group was fed only hay during the whole dry period. It was earlier observed in sheep that concentrate feeding was followed by a disturbance in calcium homeostasis, but no such disturbances were observed in the cows. The concentrate fed cows consumed 50 % more calcium than the controls and were found to mobilize less calcium from the skeleton immediately after calving. There was no evidence for the theory that the gastro-intestinal hormone gastrin is involved in calcium homeostasis in the parturient cow.

Sammanfattning

Det har tidigare observerats att snabbt insättande av kraftfoder medför rubbningar i kalciumhomeostasen hos får. I en grupp hög-dräktiga kor insattes kraftfoder omkring tre veckor före beräknad kalvning. En kontrollgrupp utfodrades med enbart hö under hela sin-perioden. Försöksgruppen konsumerade 50 % mera kalcium än kon-trollgruppen. Resultaten visade att försöksgruppen mobiliserade mindre kalcium från skelettet än kontrollgruppen orne delbart efter kalvningen. Resultaten visade även att ett snabbt insättande av kraftfoder inte tycks öka risken för paresis puerperalis. Plasmakoncentrationen av gastrin ändrades inte vid kalvningen.

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Authors and Affiliations

  1. Department of Medicine II and the Department of Physiology, Swedish University of Agricultural Sciences, S-750 07, Uppsala, Sweden

    Jan Luthman, Sten-Olof Jacobsson & Göran Nilsson

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  1. Jan Luthman
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  2. Sten-Olof Jacobsson
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  3. Göran Nilsson
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Supported by the Swedish Council for Forestry and Agricultural Research.

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Luthman, J., Jacobsson, SO. & Nilsson, G. The Effect of Concentrate Feeding on Calcium Metabolism and Plasma Gastrin Concentration in Parturient Cows. Acta Vet Scand 20, 546–554 (1979). https://doi.org/10.1186/BF03546582

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Acta Veterinaria Scandinavica

ISSN: 1751-0147