1. What changes do you expect to see in the 72-hour chick embryo that makes it look different from a 33-hour or 48-hour chick embryo?
2. What week of human development is a 72.-96 hour chick embryo comparable to? What sensory structures are visible in the 72-hour chick embryo?
3.What sensory structures are visible in 72 hour chick embryo?
4.What changes do you expect to see in the 92-hour chick embryo that make it look different from the 72-hour chick embryo?
5. The ganglia of what cranial nerves can been seen in the 96-hour chick embryo?
6.At what temperature and what humidity do you incubate chicken eggs?
7. How do you candle an egg, and what does it show you?
8. How would you go about making a homemade candler? How much do you think the raw materials for this would cost?
9. What is the best way to orient eggs when incubating them if you will be opening them later for observation? Why is this orientation advantageous?
10. What are the 4 extraembryonic membranes seen in the chick?
10.Humans and chickens have similar extraembryonic membranes.Mammals and birds (and even reptiles) produce four different kinds of extraembryonic membranes to protect the embryo: amnion, yolk sac, allantois, and chorion.
6.Temperature: The eggs need to be kept at 99.5 degrees at all times; just one degree higher or lower for a few hours can terminate the embryo.
Humidity: 40 to 50 percent humidity must be maintained for the first 18 days; 65 to 75 percent humidity is needed for the final days before hatching.
7.Chicken farmers use candling to learn which of their chicken's eggs are fertile and will hatch into baby chicks. Candling can also be used to tell if a fertilized egg has stopped developing. The candling process works by illuminating the interior of an egg so you are able to see what is inside the shell. This article will show you the correct procedure for candling an egg.
Understand why you need to candle your eggs. When you are hatching eggs at home, it is good practice to keep track of how the eggs are developing. However, this can be very difficult without the use of candling. Candling involves shining a bright light into the egg, allowing you to see its contents and check whether it is developing properly.
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Look for signs that the egg is a winner. A winner is an egg with a successfully developing embryo. You can tell if an egg is a winner using the following signs5.If you are unsure, leave the eggs alone. If you think you might have identified a yolker or a quitter, but are not 100% sure, do not discard them just yet. If you do, you run the risk of throwing away healthy eggs.
1. What changes do you expect to see in the 72-hour chick embryo that makes it look different from a 33-hour or 48-hour chick embryo? 2. What week of human development is a 72.-96 hour chick embryo co...