. The American fancier's poultry book. Poultry. 26 THE AMERICAN FANCIER'S. FIG. 4, EGg TESTER. tester, which more clearly shows the germ, owing to the peculiar construction of the tester. In Figs. 3 and 4 are shown egg testers which are sim- ple in construction, fig. *, holding and can be made at a THE EGG- very small cost. FIG- 3- egg tester. The appearance of the eggs as seen through the testers is clearly shown in the following illustrations : Fig. 5 shows a strong fertile egg, as seen on the sixth or seventh day. B, the dark spot, is the live germ; A, A, are the blood vessels extending out
. The American fancier's poultry book. Poultry. 26 THE AMERICAN FANCIER'S. FIG. 4, EGg TESTER. tester, which more clearly shows the germ, owing to the peculiar construction of the tester. In Figs. 3 and 4 are shown egg testers which are sim- ple in construction, fig. *, holding and can be made at a THE EGG- very small cost. FIG- 3- egg tester. The appearance of the eggs as seen through the testers is clearly shown in the following illustrations : Fig. 5 shows a strong fertile egg, as seen on the sixth or seventh day. B, the dark spot, is the live germ; A, A, are the blood vessels extending out from it. This germ B is seen by placing the eggs against the aperture of the tester, and revolving it between the thumb and finger until the side on which the germ has formed comes nearest the eye. The spot B will be seen very distinctly, and is often surrounded with a cloud, as shown in the figure. This is a very strong healthy egg and should hatch under a hen or in an incubator. C shows the average air space in an egg on the fifth or sixth day. Fig. 6 shows a weak or imperfectly fertil- ized egg. H is an ob- long or circular blood vessel which has start- ed; there is no part of the chick in the for- mation. This egg will not hatch. C is a small dark spot,a weak germ without blood vessels. F is the air space. Fig. 7 shows a stale egg,, which is generally dis- tinguished by the very large air space E. When an egg shows a clouded appearance, as in D, it is certainly stale and will not hatch. In an unfertile fresh egg you can see the yolk, which looks somewhat darker than the rest, of the egg, but does not look muddled. Fig. 8 shows the size of the air space in a fertile egg on the 16th day. K is 8, THE AIR SPACE ON THE .1 • j u i6th day. the space occupied by. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpoultry, bookyear1896
