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Journal of Biological Sciences

Year: 2007 | Volume: 7 | Issue: 8 | Page No.: 1331-1338
DOI: 10.3923/jbs.2007.1331.1338

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Authors


B.C. Li


F.Yu


Q. Xu


L.G. Ni


G.H. Chen


X.M. Cheng


H.H. Musa


T.Z. Liu


Keywords


  • Chicken
  • embryo
  • testis
  • spermatogonium
  • PGCs
Research Article

Relationship Between Spermatogonium and Testicular Development in Early Chicken Embryos

B.C. Li, F.Yu, Q. Xu, L.G. Ni, G.H. Chen, X.M. Cheng, H.H. Musa and T.Z. Liu
Chicken embryos from stage 15 to stage 45 were studied by means of serial section and light microscopy in order to investigate the relationship between the spermatogonium and the testicular development in early chicken embryos. The results showed that the glycogen in the PGCs (primordial germ cells) cytoplasm reduced gradually at the stage 22-28 (3.5th-5th hatching day). On the stage 29 (6th hatching day), the gonad of the embryo appeared the feature of testis and the glycogen in the PGCs cytoplasm reduced further. On the stage 31 (7th hatching day), the differentiation of ovary or testis was obvious and the glycogen in the PGCs cytoplasm later disappeared. On the stage 34 (8th hatching day), the testicular cord had began to differentiate. The each cord had been solid tubule with the spermatogonium. On the stage 35-37 (9th-11th hatching day), the number of testicular cord had been increased following embryonic development. The spermatogoniums were monolayer located in cord. At this stage, fewer sustentacular cells had been differentiated, while difficult to distinguish. On the stage 38-40 (12th-14th hatching day), the seminiferous tubules had been formed typically, the number of spermatogonium increased as well as sustentacular cells and the interstitial cells in seminiferous distributed in groups. On the stage 40-45 (16th-19th hatching day), the testis on the right was a little bigger than that of the left, the number of spermatogonium increased obviously and appeared like clusters of grape in the middle of seminiferous. Lumina in seminiferous tubule had formed and spermatogonium aligned with different layers.
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How to cite this article

B.C. Li, F.Yu, Q. Xu, L.G. Ni, G.H. Chen, X.M. Cheng, H.H. Musa and T.Z. Liu, 2007. Relationship Between Spermatogonium and Testicular Development in Early Chicken Embryos. Journal of Biological Sciences, 7: 1331-1338.

DOI: 10.3923/jbs.2007.1331.1338

URL: https://scialert.net/abstract/?doi=jbs.2007.1331.1338

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