April 2013 Archives


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This week we were suppose to do our chick lab. Unfortunately, due to the weather, the poor chick eggs froze. Because of that, our professor replaced this lab with a bubble lab! We made solution out of D.I. water, glycerol, and dawn soap. Here are my results!


The purpose of making these bubbles was to resemble multicellular organisms and their differentiation. The connection with the bubbles were observed to see how they followed rules of organization.

It was a fun lab, and now I know how to make bubbles!!!! :)

Fruit Fly Behavior

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For the past couple weeks, the lab assignment was to take a video of some kind of fruit fly behavior like mating or hatching. My partner and I wanted to do it on mating because I am also in a genetics lab, so I have easily accessible virgin females. However, we had several issues with this lab. The camera wasn't working at first, and then the computer program wasn't working. We tried 3 times to do this assignment before actually getting some footage. We waiting for a really long time for the flies to wake up, and then after 2.5 hours, they still weren't interested in mating. Because of this, we took a video of just their behavior, which was wiping their wings and head. This is show in the video:

The last time we attempted to do this lab, we had everything set up, and since there weren't any current problems with the technology, we didn't think we had to test anything. However, when the flies started to mate, we could not get the camera to record onto the computer.

This lab was frustrating, but it was still interesting to see all of the behaviors. I wish we could have gotten it on video, but maybe another time.

Chicken Development

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Next week in lab, we are suppose to start chicken development. Therefore, I thought it would be good to read up on this topic so that I am prepared for lab. With only 31 days left until graduation, I hope that we have enough time to finish this lab since the chicken develops and hatches in 20-21 days.

I will assume that we will be keeping the fertilized eggs in the incubator. I guess a humidified incubator is best, but I don't know what kind of incubator is in the lab.

All of the information below is from Mississippi State Universities website. [http://msucares.com/poultry/reproductions/poultry_chicks_embryo.html]


Before Egg Laying:
Division and growth of living cells
Segregation of cells into groups of special function (tissues)

Between Laying and Incubation
No growth; stage of inactive embryonic life

During Incubation:

First day

16 hours - first sign of resemblance to a chick embryo
18 hours - appearance of alimentary tract
20 hours - appearance of vertebral column
21 hours - beginning of nervous system
22 hours - beginning of head
24 hours - beginning of eye

Second day

25 hours - beginning of heart
35 hours - beginning of ear
42 hours - heart beats

Third day

60 hours - beginning of nose
62 hours - beginning of legs
64 hours - beginning of wings

Fourth day - beginning of tongue

Fifth day - formation of reproductive organs and differentiation of sex

Sixth day - beginning of beak

Eighth day - beginning of feathers

Tenth day - beginning of hardening of beak

Thirteenth day - appearance of scales and claws

Fourteenth day - embryo gets into position suitable for breaking shell

Sixteenth day - scales, claws and beak becoming firm and horny

Seventeenth day - beak turns toward air cell

Nineteenth day - yolk sac begins to enter body cavity

Twentieth day - yolk sac completely drawn into body cavity; embryo occupies practically all the space within the egg except the air cell

Twenty-first day - hatching of chick

I also thought it would be interesting to read up on some interesting facts about chickens. This is what I found:
-the chicken is the closest living relative of the t-rex
-a chickens heart beats 280-315 times a minutes
-9 egg yolks have been found in one chicken egg


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This page is an archive of entries from April 2013 listed from newest to oldest.

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