Feeding Condition and Strain Difference Influence Sleeping Behavior in Newborn Chicks.

DOI Web Site Web Site 被引用文献2件 参考文献27件
  • Saito Shin
    Laboratory of Advanced Animal and Marine Bioresources, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University
  • Takagi Tomo
    Laboratory of Advanced Animal and Marine Bioresources, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University
  • Koutoku Tomoyuki
    Laboratory of Advanced Animal and Marine Bioresources, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University
  • Denbow D. Michael
    Department of Animal and Poultry Sciences, Virginia Polytechnic Institute
  • Furuse Mitsuhiro
    Laboratory of Advanced Animal and Marine Bioresources, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University

この論文をさがす

抄録

To clarify sleeping behavior of neonatal chicks, two experiments were conducted. In Experiment 1, the contribution of feeding on sleeping behavior was investigated over a 24 h period. Newly hatched layer-type chicks were kept under continuous lighting, and were maintained at 28°C for one day without any food or water. Thereafter, one group was provided food and water, and another group was given only water for 23 h. The chicks were then video recorded over the next 24 h in order to quantify the following behaviors : (1) active wakefulness or sitting with eyes open, and (2) sitting or standing motionless with their eyes closed and head dropping on the ground (sleeping posture). Thereafter, the chicks were sacrificed and brain serotonin levels determined. The time fasted chicks spent in a sleeping posture was longer than in fed chicks. The serotonin content tended to be higher in fasted than in fed chicks. No significant difference in the concentration of ketone bodies was detected between fed, fast and control chicks.<BR> In Experiment 2, the differences of sleeping activity between ad libitum fed layers and broilers were examined. Broiler chicks spent more time in a sleeping posture than layer chicks, but brain serotonin content was higher in layer chicks.<BR> In conclusion, sleep in the neonatal stage was largely influence by feeding conditions, and was modified by genetic selection.

収録刊行物

被引用文献 (2)*注記

もっと見る

参考文献 (27)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ