Chicken Somitogenesis Movie 1

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The chicken embryo is shown lying across the middle of the movie: tail end (left) and head end (right).

Second part of movie focusses on the embryo tail end where new somites are being generated. Note the time clock in the upper right of movie.


Special thanks to Prof Claudio Stern (Dept Cell & Developmental Biology, University College London) for contribution of this original research movie.


Links: MP4 version | Chicken Development | Somitogenesis | Gastrulation | Heart | Movies


chicken

Hamburger Hamilton Stages (1951)  
Hamburger Hamilton Stages
Age
Identification of Stages   (Chicken Development)
Before Laying
Early cleavage
3.5-4.5 hr Shell membrane of egg formed in isthmus of oviduct
During cleavage
Germ wall formed from marginal periblast
Late cleavage
4.5-24.0 hr Shell of egg formed in uterus
After Laying
1
Preprimitive streak (embryonic shield)
2
6-7 hr Initial primitive streak, 0.3-0.5 mm long
3
12-13 hr Intermediate primitive streak
4
18-19 hr Definitive primitive streak, ±1.88 mm long
5
19-22 hr Head process (notochord)
6
23-25 hr Head fold
7
23-26 hr 1 somite; neural folds
7 to 8-
ca. 23-26 hr 1-3 somites; coelom
8
26-29 hr 4 somites; blood islands
9
29-33 hr 7 somites; primary optic vesicles
9+ to 10-
ca. 33 hr 8-9 somites; anterior amniotic fold
10
33-38 hr 10 somites; 3 primary brain vesicles
11
40-45 hr 13 somites; 5 neuromeres of hindbrain
12
45-49 hr 16 somites; telencephalon
13
48-52 hr 19 somites; atrioventricular canal
13+ to 14-
ca. 50-52 hr 20-21 somites; tail bud
14
50-53 hr 22 somites; trunk flexure; visceral arches I and II, clefts 1 and 2
14+ to 15-
ca. 50-54 hr 23 somites; premandibular head cavities
15
50-55 hr 24-27 somites; visceral arch III, cleft 3
16
51-56 hr 26-28 somites; wing bud; posterior amniotic fold
17
52-64 hr 29-32 somites; leg bud; epiphysis
18
3 da 30-36 somites extending beyond level of leg bud; allantois
19
3.0-3.5 da 37- 40 somites extending into tail; maxillary process
20
3.0-3.5 da 40-43 somites; rotation completed; eye pigment
21
3.5 da 43-44 somites; visceral arch IV, cleft 4
22
3.5-4.0 da Somites extend to tip of tail
23
4 da Dorsal contour from hindbrain to tail is a curved line
24
4.5 da Toe plate
25
4.5-5.0 da Elbow and knee joints
26
5 da 1st 3 toes
27
5.0-5.5 da Beak
28
5.5-6.0 da 3 digits, 4 toes
29
6.0-6.5 da Rudiment of 5th toe
30
6.5-7.0 da Feather germs; scleral papillae; egg tooth
31
7.0-7.5 da Web between 1st and 2nd digits
32
7.5 da Anterior tip of mandible has reached beak
33
7.5-8.0 da Web on radial margin of wing and 1st digit
34
8 da Nictitating membrane
35
8.5-9.0 da Phalanges in toes
36
10 da Length of 3rd toe from tip to middle of metatarsal joint = 5.4 ±0.3 mm; length of beak from anterior angle of nostril to tip of bill = 2.5mm; primordium of comb; labial groove; uropygial gland
37
11 da Length of 3rd toe = 7.4 ±0.3mm; length of beak = 3.0 mm
38
12 da Length of 3rd toe = 8.4 ± 0.3 mm; length of beak = 3.1 mm
39
13 da Length of 3rd toe = 9.8 ± 0.3 mm; length of beak = 3.5 mm
40
14 da Length of beak = 4.0 mm; length of 3rd toe = 12.7 ± 0.5 mm
41
15 da Length of beak from anterior angle of nostril to tip of upper bill = 4.5 mm; length of 3rd toe = 14.9 ± 0.8 mm
42
16 da Length of beak = 4.8 mm; length of 3rd toe = 16.7 ± 0.8 mm
43
17 da Length of beak = 5.0 mm; length of 3rd toe = 18.6 ± 0.8 mm
44
18 da Length of beak = 5.7 mm; length of 3rd toe = 20.4 ± 0.8 mm
45
19-20 da Yolk sac half enclosed in body cavity; chorio-allantoic membrane contains less blood and is "sticky" in living embryo
46
20-21 da Newly-hatched chick

Hamburger V. and Hamilton HL. A series of normal stages in the development of the chick embryo. (1951) J Morphol. 88(1): 49-92. PMID 24539719 PDF

Original 1951 paper (and all data) was republished in 1992. <pubmed>1304821</pubmed> PDF

Reference

<pubmed>24407478</pubmed>


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Cite this page: Hill, M.A. (2019, June 26) Embryology Chicken Somitogenesis Movie 1. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Chicken_Somitogenesis_Movie_1

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© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G