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The effect of feeding intensity during the dry period on plasma leptin and time to return to cyclicity in dairy cows

Published online by Cambridge University Press:  20 November 2017

K. Holtenius
Affiliation:
Department of Animal Nutrition and Management Department of Ruminant Medicine and Veterinary Epidemiology, Swedish University of Agricultural Sciences, SE-750 07 Uppsala, Sweden
S. Agenäs
Affiliation:
Department of Ruminant Medicine and Veterinary Epidemiology, Swedish University of Agricultural Sciences, SE-750 07 Uppsala, Sweden
H. Gustafsson
Affiliation:
Swedish Dairy Association, SE-631 84, Eskilstuna, Sweden
C. Delavaud
Affiliation:
Unite de Recherche sur les Herbivores, INRA, Theix, 63122 St-Genes-Champanelle, France
Y. Chillard
Affiliation:
Unite de Recherche sur les Herbivores, INRA, Theix, 63122 St-Genes-Champanelle, France
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Extract

Much evidence has accumulated showing that female reproductive functions are disrupted when changes in nutritional status take place in both over- and undernutrition. The peptide hormone leptin is considered a possible link between nutrition and reproduction. One objective with the present study was to investigate how different levels of feed intake during the dry period, thereby creating differences in body condition at parturition, affected the plasma leptin concentration and the reproductive function after parturition.

Type
Theatre Presentations
Copyright
Copyright © The British Society of Animal Science 2002

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References

Delavaud, C., Bocquier, F., Chilliard, Y., Keisler, DH., Gertler, A., Kann, G. 2000. Plasma letin determination in ruminants: effect of nutritional status and body fatness on plasma leptin concentration assessed by a specific RIA in sheep. Journal of Endocrinology. 165: 519-26.Google Scholar