New post on Chicken Wired - hierdie is Martine Blackler se eie webwerf. Sy gee altyd baie goeie raad daar! INCUBATION by chickenwired INCUBATION IS A VERY DELICATE OPERATION AND IS NOT AS EASY AS IT SEEMS! Incubation of chicken eggs is a 21 day process. Within the first seven hours, you have a heart beat and blood vessels forming. Within 24 hours you have eyes starting to form and a working heart. After this, the babies form slowly until the feathers, the nails, the legs are the last to form. The last part of the process is the absorption of the yolk, which usually happens on the last two days. Candling, or shining a light into the egg to check development is a good way to see if the embryo is developing correctly. Try not to candle before 7 days as before that the blood vessels are very delicate and could rupture. Check the development of the air sac, according to the diagram. If your air sac is too large, it means you have too little humidity. If the air sac is too small, your humidity is too high. Any clear eggs should be discarded so that they dont explode in your machine. If you do not have an automatic turner in your machine you need to turn the eggs at least 3 to 5 times a day, always uneven numbers so that the eggs do not always spend the night turned the same way, as presumably you will not turn overnight. When turning gently turn from side to side, NEVER from end to end as you risk twisting the umbilical cord. Always have clean hands when turning the eggs, as oils and dirt from your hands can block the pores of the eggs and prevent oxygen reaching the embryo. Oxygen is vital at all stages of development: The essential exchange of gasses between the embryo and the air sac, oxygen and C02 is vital to the correct development of the embryo. Therefore you need an incubator that has a fan which will circulate warm air around the machine. Your humidity needs to be as follows: chicken eggs: start with low humidity to allow the blood vessels and heart to form first. 20% On day 5, you can increase to 25%. On day seven again to 30%. On day 10, increase to 40 %. On the last two days of incubation increase to 55%. This is of course different for all climates: In very humid areas, you may need to reduce humidity. In very dry areas, you may need to increase. On day 19, take the eggs out of the turning section and lay flat in a hatcher. This amount of days also depends on the tipe of breed. You will have to experiment. Do not turn again, and do not open the incubator. Do not be tempted to help the chicks out of the egg unless you see visible signs of prolonged distress, usually due to insufficient humidity. In that case, remove the victim, and in a bowl of warm water, hold the egg so that the head of the chick is not submerged, and slowly peel the egg away from the head and body. Leave the bottom section alone, return to the incubator.
Posted on: Fri, 28 Mar 2014 19:30:02 +0000
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