Gerken M, Petersen J
Institut für Tierzuchtwissenschaft, Abt. Kleintierzucht, Bonn, Federal Republic of Germany.
Behav Genet. 1992 Sep;22(5):601-12. doi: 10.1007/BF01074311.
Bidirectional selection was conducted for dustbathing activity in male Japanese quail over 17 generations. The response to selection was slightly asymmetrical, due mainly to scale effects and a threshold imposing discontinuity on the visible expression of dustbathing in the low line. Correlated responses to selection were found for latency to dustbathe, duration, intensity, and incidence of nonbathers. In general, changes followed linear patterns over time in both lines with the exception of quadratic change in nonbathers in the high line. Under artificial environment, only minor natural selection pressure is assumed to act on the expression of dustbathing behavior.
对雄性日本鹌鹑的沙浴活动进行了17代的双向选择。选择反应略有不对称，主要是由于尺度效应以及低选择系中沙浴可见表达的阈值导致的不连续性。在沙浴潜伏期、持续时间、强度和不进行沙浴的发生率方面发现了对选择的相关反应。总体而言，除了高选择系中不进行沙浴的发生率呈二次变化外，两系随时间的变化均呈线性模式。在人工环境下，假定只有微小的自然选择压力作用于沙浴行为的表达。
