For the owner of poultry it is important to know how their germ at any stage of the development looks. Each family of pets has distinctive signs in development of an embryo and formation of a baby bird which knowledge will help to conduct economy more productively.
Instruction
1. No matter, to what genus of birds the germ belongs, development of any of them has much in common. But differences nevertheless are. On certain terms of an ovoskopirovaniye it is possible to define with confidence whose baby bird develops. But it concerns only poultry and her close wild relatives. It is not enough rather flying and other birds of exact information on detailed development of a germ.
2. If when raying to use a powerful light source, then the oosperm can be distinguished for 1-2 days on existence of a blastodisk. It looks as the large dark stain located in the center of a yolk, but with small shift to an air chamber. At some breeds of hens, ducks and geese on the one side of a spot the light border can be noticeable. If blastodisk small or is hardly distinguishable, so a chicken, most likely, weak or can die.
3. For 6-7 days the germ is well distinguishable. The spot brightens, at the same time getting more dark contour. The germ is still shipped in a yolk, but over that place where it is, formed well distinguishable spot of dairy color – amnion. In the sharp end of egg thin blood vessels are accurately distinguishable (allantois). The they vyrazhenny, the are stronger a germ.
4. For 10-11 day of the development the baby bird looks as a dark stain of the size of a yolk which is penetrated by the thick, filled with blood network of vessels. Now they stronger, saturated red color. Edges of an allantois completely cover by this time protein and are closed in the sharp end of egg. In process of the development the embryo increases in sizes and by 19-20 day occupies 2/3 its volumes. For the 18th day by means of a stethoscope it is possible to hear well distinguishable heartbeat of a baby bird.
5. In what distinction of development of germs of baby birds of poultry? By the end of the third week the development of a chicken germ is almost completed. The full-fledged chicken hatches for 20-21 day. Eggs of turkey poults need to lie down still, these birds are ready to a shell proklevyvaniye only for 27-28 days. Per day there are ducklings earlier, and guinea fowls hatch for the 24th day after fertilization of egg.
6. Difference in appearance and development of embryos of these birds following: the first down on a back appears at hens and ducks for the 12th day, at geese, guinea fowls and turkey poults – on 14. The chicken is completely covered with down at hens for the 14th day, at ducks and turkeys - on 15, at geese and guinea fowls - on 18. Chickens open eyes for the 20th day, gooses – on 28, ducklings - on 26, guinea fowls – on 24, turkeys – on 26. On external signs of a newborn baby bird it is possible to understand at once what breed of poultry he treats.