Morrison W D, McMillan I, Bate L A, Otten L, Pei D C
Poult Sci. 1986 Aug;65(8):1516-21. doi: 10.3382/ps.0651516.
Four trials, using operant conditioning procedures, were conducted to study the response of chicks, housed at 16 C, to microwave or infrared heat. Microwave power density was 26 mW/cm2 in Trial 1, 13 mW/cm2 in Trial 2, and 10 mW/cm2 in Trials 3 and 4. Chicks voluntarily demanded between 28 and 63% as much heat (min heat/hr) from microwave source as from infrared source at all power densities. There was no correlation, however, between the ratio of heat demanded and the power density used. There were no significant differences in growth between infrared- or microwave-heated chicks. It is evident from these studies that 8-day-old broiler chicks are capable of associating the performance of a task with a thermal reward provided by the microwaves. They are also able to utilize these microwaves through operant conditioning without any visible detrimental effect to their health or behavior.
进行了四项采用操作性条件反射程序的试验，以研究饲养在16摄氏度环境下的雏鸡对微波或红外热的反应。试验1中微波功率密度为26毫瓦/平方厘米，试验2中为13毫瓦/平方厘米，试验3和试验4中为10毫瓦/平方厘米。在所有功率密度下，雏鸡自愿从微波源获取的热量（最低热量/小时）是从红外源获取热量的28%至63%。然而，所需热量的比例与所使用的功率密度之间没有相关性。红外加热或微波加热的雏鸡在生长方面没有显著差异。从这些研究中可以明显看出，8日龄的肉鸡雏鸡能够将一项任务的执行与微波提供的热奖励联系起来。它们还能够通过操作性条件反射利用这些微波，而对其健康或行为没有任何明显的有害影响。
