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核心技术专利：CN118964589B侵权必究

核心技术专利：CN118964589B侵权必究

Arieli A, Meltzer A, Berman A

Br Poult Sci. 1979 Nov;20(6):505-13. doi: 10.1080/00071667908416614.

The oxygen consumption and body temperature of White Leghorn x Rhode Island Red laying hens, which were being kept in a semi-natural climate, were periodically measured for short periods at ambient temperatures between 2 and 32 degrees C in a suitable chamber. 2. A seasonal shift was observed in lower critical temperature (Tc) and thermoneutral oxygen consumption. The slope of the relationship between oxygen consumption and air temperature at less than Tc was not discernibly affected by season. 3. The seasonal shifts correlated best with mean daily outside temperature Ta) during the experimental periods; a seasonal decrease of 10 degrees C in Ta was associated with a decrease of 8.5 degrees C in Tc and a 12% increase in thermoneutral oxygen consumption. 4. The capacity to maintain body temperature stability at extremes of environmental temperature was improved by acclimatisation to heat.

将白来航鸡与罗德岛红鸡的杂交产蛋母鸡饲养在半自然气候条件下，于2至32摄氏度的环境温度范围内，在合适的实验箱中对其氧气消耗量和体温进行短期的定期测量。2. 观察到较低临界温度（Tc）和热中性氧气消耗量存在季节性变化。低于Tc时，氧气消耗量与气温之间关系的斜率并未明显受到季节影响。3. 季节性变化与实验期间的日平均室外温度（Ta）相关性最佳；Ta季节性下降10摄氏度，会导致Tc下降8.5摄氏度，热中性氧气消耗量增加12%。4. 通过热适应，提高了在极端环境温度下维持体温稳定的能力。

Arieli A, Meltzer A, Berman A

Br Poult Sci. 1979 Nov;20(6):505-13. doi: 10.1080/00071667908416614.

The oxygen consumption and body temperature of White Leghorn x Rhode Island Red laying hens, which were being kept in a semi-natural climate, were periodically measured for short periods at ambient temperatures between 2 and 32 degrees C in a suitable chamber. 2. A seasonal shift was observed in lower critical temperature (Tc) and thermoneutral oxygen consumption. The slope of the relationship between oxygen consumption and air temperature at less than Tc was not discernibly affected by season. 3. The seasonal shifts correlated best with mean daily outside temperature Ta) during the experimental periods; a seasonal decrease of 10 degrees C in Ta was associated with a decrease of 8.5 degrees C in Tc and a 12% increase in thermoneutral oxygen consumption. 4. The capacity to maintain body temperature stability at extremes of environmental temperature was improved by acclimatisation to heat.

将白来航鸡与罗德岛红鸡的杂交产蛋母鸡饲养在半自然气候条件下，于2至32摄氏度的环境温度范围内，在合适的实验箱中对其氧气消耗量和体温进行短期的定期测量。2. 观察到较低临界温度（Tc）和热中性氧气消耗量存在季节性变化。低于Tc时，氧气消耗量与气温之间关系的斜率并未明显受到季节影响。3. 季节性变化与实验期间的日平均室外温度（Ta）相关性最佳；Ta季节性下降10摄氏度，会导致Tc下降8.5摄氏度，热中性氧气消耗量增加12%。4. 通过热适应，提高了在极端环境温度下维持体温稳定的能力。