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Lipid Mobilization in Parturient Cows

Fettmobiliseringen hos kor vid kalvningen

Acta Veterinaria Scandinavica volume 16, pages 63–75 (1975)Cite this article

Abstract

The blood levels of calcium, inorganic phosphorus, magnesium, glucose and NEFA were studied in cows at the time around partus. Eight of 16 cows developed hypocalcaemic paresis. Besides hypocalcaemia the paretic cows showed lower levels of inorganic phosphorus and higher levels of glucose and NEFA than non-paretic cows 24 hrs. post partum. It is known that lipolysis is associated with uptake of calcium in adipose tissue. The calcium content in perirenal adipose tissue was however lower in paretic cows than in non-paretic parturient cows and lactating cows slaughtered 3–5 months after calving. The calcium content in omental adipose tissue was about the same in all 3 groups. Despite increased lipolysis the calcium content in adipose tissue is thus not increased in cows suffering from parturient paresis.

Sammanfattning

Förändringar i blodkoncentrationerna av kalcium, oorganisk fosfor, magnesium, glykos och NEFA studerades hos kor i anslutning till kalvningen. Kor som drabbades av pares uppvisade förutom hypokalcemi och hypofosfatemi förhöjda värden för glykos och NEFA. Det är känt att kalciumupptaget i fettvävnaden ökar vid ökad lipolys. Trots att fettmobiliseringen var ökad hos pareskor, så var kalciuminnehållet i den perirenala fettvätnaden lägre än hos normala kor. Hypokalcemi kan förmodligen medföra en vävnadsförlust av kalcium som överstiger det upptag som sker i samband med ökad lipolys.

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Authors and Affiliations

  1. Department of Medicine II, Royal Veterinary College, S-104 05, Stockholm, Sweden

    J. Luthman & J. Persson

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  1. J. Luthman
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  2. J. Persson
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Supported by the Swedish Council for Forestry and Agricultural Research.

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Luthman, J., Persson, J. Lipid Mobilization in Parturient Cows. Acta Vet Scand 16, 63–75 (1975). https://doi.org/10.1186/BF03546696

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Acta Veterinaria Scandinavica

ISSN: 1751-0147