The Resistance of the Chicken Embryo to Low Temperature Exposure

摘要: Abstract LAMSON (1918) reported that chick embryos from strong stock survived exposures of four to five hours at 50°F. after the first twenty-four incubation. From this point on he found time could be increased up 15 for 10 12-day embryo, although 17th day six hours’ exposure caused death embryo. Taylor et al. (1933) effects twelve current interruption different lots eggs various daily stages development. They a room temperature 70°F. during period reduced number chicks hatched only by about 3.4 percent. These authors also pointed out Kaestner (1896) days incubation withstand 72 69.8°F. while Bucciante (1931) observed there was no resumption in development incubated several one or two …