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Characteristics of an Abnormal Type of Egg Shell

1934; Elsevier BV; Volume: 13; Issue: 2 Linguagem: Inglês

10.3382/ps.0130116

1525-3171

H.J. Almquist, B. R. Burmester,

Soybean genetics and cultivation

EGG shells of the type illustrated in Figure 1 have a large number of small spots which are more translucent than the rest of the shell and lend the egg a speckled appearance when candled. The candling appearance of these shells is distinctly different from that of the mottled shells described by Holst, Almquist and Lorenz (1932), as in the latter case the more translucent areas are much larger and more numerous. Another peculiarity of these abnormal shells is that, when tapped, they emit a musical clink like that obtained from a glass vessel, while normal shells give only a dull sound. Hence, these abnormal shells will be referred to for convenience as “glassy” shells. Glassy shells appear to be thinner and more fragile than normal shells. Since it is a common belief that glassy shells are highly porous, because of their peculiar appearance, they are usually placed in the . . .