Matsuzawa T
Poult Sci. 1979 Nov;58(6):1649-50. doi: 10.3382/ps.0581649.
Daily subcutaneous injection of L-dopa for 4 weeks into 2-year-old low egg production hens resulted in a lightening of feather color to snow white and increased oviduct and ovary weights and the development of well developed follicles. However, the rate of egg production during administration did not increase.
对2岁产蛋量低的母鸡进行为期4周的每日皮下注射左旋多巴，结果导致羽毛颜色变浅至雪白，输卵管和卵巢重量增加，卵泡发育良好。然而，给药期间的产蛋率并未提高。
