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Leptin is involved in the regulation of ovarian activity in fasted hens (Gallus domesticus)

Published online by Cambridge University Press:  20 November 2017

H. Paczoska-Eliasiewicz ,
M. Proszkowiec ,
A. Hrabia ,
A. Sechman ,
N. Raver ,
A. Gertler ,
J. Proudman ,
I. Rozenboim  and
J. Rzasa
H. Paczoska-Eliasiewicz
Affiliation:
Department of Animal Physiology, Agricultural University, Al. Mickiewicza 24/28, 30-059 Kraków, Poland
M. Proszkowiec
Affiliation:
Department of Animal Physiology, Agricultural University, Al. Mickiewicza 24/28, 30-059 Kraków, Poland
A. Hrabia
Affiliation:
Department of Animal Physiology, Agricultural University, Al. Mickiewicza 24/28, 30-059 Kraków, Poland
A. Sechman
Affiliation:
Department of Animal Physiology, Agricultural University, Al. Mickiewicza 24/28, 30-059 Kraków, Poland
N. Raver
Affiliation:
Institute of Biochemistry, Food Science and Nutrition
A. Gertler
Affiliation:
Institute of Biochemistry, Food Science and Nutrition
J. Proudman
Affiliation:
Germplasm and Gamete Physiology Laboratory, USDA-ARS, 10300 Baltimore Avenue, Beltsville, MD 20705-2350, USA
I. Rozenboim
Affiliation:
Department of Animal Sciences, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot 76100, Israel
J. Rzasa
Affiliation:
Department of Animal Physiology, Agricultural University, Al. Mickiewicza 24/28, 30-059 Kraków, Poland
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Extract

In mammals leptin plays a key role in regulating the whole-body energy homeostasis and is important for for normal reproduction Much evidence indicates that leptin mediates the undernutrition-induced alterations of the reproductive axis (Ahima and Flier, 2000). In birds leptin gene was cloned in chickens (Taouis et al., 1998) and recombinant chicken leptin (chLep) was prepared in our laboratory (Raver et al., 1998). Unlike mammals, leptin is expressed not only in the adipose tissue but also in liver and leptin plasma level is lower in fasted than in fed hens (Dridi et al., 2000). However, the importance of leptin in avian reproduction is not known. Therefore, the aim of the present study was to examine whether in chickens leptin affects events occuring in the ovary during fasting.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2002 , 2002 , pp. 3
Copyright
Copyright © The British Society of Animal Science 2002

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References

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