SHORT COMMUNICATION
Comparative study of plasma leptin concentration
between ruminal and abomasal feeding in sheep
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1
Laboratory of Animal Science, Faculty of Life and Environmental Science,
Shimane University,
Matsue-shi, 690-8504, Japan
2
Unit de Recherche sur les Herbivores, Equipe Tissu Adipeux et Lipides du Lait, INRA,
Theix 63122 St-Gené-Champanelle, France
Publication date: 2004-08-30
J. Anim. Feed Sci. 2004;13(Suppl. 1):453-456
KEYWORDS
ABSTRACT
Leptin plays an important role in regulation of energy balance in mammals. This experiment
was conducted to investigate the difference between ruminal and abomasal feeding of plasma leptin
concentration in ruminants. Plasma leptin, insulin and glucose concentrations showed different
trends by conversion from ruminal to abomasal feeding in samples collected from sheep every
2 days at just before morning feeding throughout the experiment, and these concentrations were
not stable in abomasal feeding. Plasma insulin and glucose increased dramatically after feeding in
abomasal feeding than ruminal feeding, while plasma leptin did not show any change after feeding.
Changes in plasma leptin concentration could be due to changes of the digestive system and/or
changes in plasma insulin and glucose concentrations with following change of digestive system.
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