高温下におけるブロイラーの飼料摂取量,直腸温,血漿中グルコース濃度,遊離脂肪酸濃度および熱死発生に及ぼすグルコース給与の影響

DOI 日本農学文献記事索引 Web Site Web Site 被引用文献3件 参考文献19件

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  • Effects of Glucose in Drinking Water on Feed Intake, Rectal Temperature, Plasma Glucose, Free Fatty Acid and Mortality of Broilers during High Temperature Exposure.
  • 高温下におけるブロイラーの飼料摂取量，直腸温，血しょう中グルコース濃度，遊離脂肪酸濃度および熱死発生に及ぼすグルコース給与の影響
  • コウオンカ ニ オケル ブロイラー ノ シリョウ セッシュリョウ チョクチョウ

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This study was conducted to evaluate the effects of drinking glucosewater and ambient temperatures on feed intake, rectal temperature, plasmaglucose and free fatty acid concentrations, and mortality of male commercial broilers from 48 to 54 days of age. Two groups (8 birds/group), whichwere available to access 4% glucose water solution (Group G) and tapwater (Group W) ad libitum, respectively, were subjected to the following temperature treatments. A diurnal temperature cycles (12h:12h) of 17:25°C was performed from 48 to 50-d-old, then 25:33°C (12h:12h) from 51 to 53-d-old, finally a constant temperature of 12h at 38°C at 54-d-old. Theaverage feed intakes during 25 and 33°C were significantly smaller in Group G than in Group W, while water and ME intakes significantly greater. Nomarked difference in rectal temperature was found between the two groups under the ambient temperature of 17, 25 and 33°C. However, at 38°C, rectal temperature was enhanced quickly after exposure for 2h in Group W, while its slow increase was found in Group G. The survival time ofbroilers were prolonged obviously by drinking glucose water duringexposure to 38°C. Plasma glucose was significantly higher in Group G than in Group W after exposure to 38°C for 8h, while plasma free fattyacid was significantly lower. These results indicate that glucose intake alleviates the influence of heat stress which may be related to thermo-regulation of broilers.

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