Heat production and lipid metabolism in broiler and layer chickens during embryonic development

Momoka Sato, Tetsuya Tachibana, Mitsuhiro Furuse

研究成果: ジャーナルへの寄稿学術誌査読

81 被引用数 (Scopus)

抄録

We compared heat production (HP) and lipid metabolism in broiler and layer chickens (Gallus gallus) during embryonic development. To investigate HP and respiratory quotient (RQ), oxygen (O2) consumption and carbon dioxide (CO2) production were measured using an open-circuit calorimeter system. HP consistently had a tendency (P = 0.06) to be lower in broilers than in layers during embryonic development, and HP gradually decreased with developmental stage in both strains. RQ values of both strains were approximately 0.7 at every embryonic stage investigated. These results suggest that chicken embryos mainly use lipid for energy, and the RQ was significantly lower in broilers than in layers during embryonic development. Consumption of the yolk sac as a lipid source was faster in broilers than in layers. Plasma D-3-hydroxybutyrate (D3HB) and glycerol concentrations, associated with fatty acid oxidation, were lower in broiler than layer embryos. These results demonstrate that HP and lipid metabolism are different between the strains during embryonic development, and may be one factor for the growth difference between broiler and layer embryos.

本文言語英語
ページ(範囲)382-388
ページ数7
ジャーナルComparative Biochemistry and Physiology - A Molecular and Integrative Physiology
143
3
DOI
出版ステータス出版済み - 3月 2006

!!!All Science Journal Classification (ASJC) codes

  • 生化学
  • 生理学
  • 分子生物学

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