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ผลงานตีพิมพ์ในวารสารวิชาการHistology of the digestive tract of the freshwater stingray Himantura signifer Compagno and Roberts, 1982 (Elasmobranchii, Dasyatidae)ผู้แต่ง: Mrs.Kannika Chatchavalvanich, Associate Professor ,  Marcos, R, Poonpirom, J, Mrs.Amara Thongpan, Associate Professor, Rocha, E, วารสาร:  
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ผลงานตีพิมพ์ในวารสารวิชาการMicroscopic structures of the ovary and female genital ducts of Supachai's caecilian, Ichthyophis supachaii Taylor, 1960 (Amphibia: Gymnophiona)ผู้แต่ง:อัคนี ผิวหอม, Dr.Pramote Chumnanpuen, Assistant Professor , อิสเรศ มุยคำ, Mrs.Kannika Chatchavalvanich, Associate Professor, Dr.Nopparat Srakaew, Assistant Professor, วารสาร: |
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Histological Development of Pearl-Sac Formation in Thai Freshwater Mussels) ผู้เขียน:นางกรรณิกา ชัชวาลวานิช, รองศาสตราจารย์, Aurapa Nagachinda, ดร.อุทัยวรรณ โกวิทวที, รองศาสตราจารย์ , สาธิต โกวิทวที, นางอมรา ทองปาน, รองศาสตราจารย์, Oamduen Meejui สื่อสิ่งพิมพ์:pdf AbstractSeven species of freshwater pearl mussels collected from three different basins in Thailand were mantle-transplanted and returned to culture in their natural habitats. The microscopic structure of the forming pearl sacs on days 7, 15, 30, and 60 was described. The outer mantle epithelium became a continuous sheet of complete pearl sac, having a small amount of material at day 7. An increasing amount of secreted materials was seen on day 15 and had developed into layers of dense materials by day 30, when the pearl sac epithelium changed from a columnar to squamous epithelium. At day 60, calcium was first seen at the central part of the pearl and later in peripheral parts. Pearls inside the sac were variable in shape. Occasionally, several sacs formed from a single mantle-transplanted piece. Four species of pearl mussel giving superior pearl characters and containing calcium deposits by day 60 were Hyriopsis (Limnoscapha) myersiana, Chamberlainia hainesiana, H. (L.) desowitzi and Pseudodon sp. |
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หัวเรื่อง:ลักษณะโครงสร้างทางกายวิภาคและจุลกายวิภาคของระบบสืบพันธุ์เพศผู้ในปลากระเบน ผู้เขียน:นางกรรณิกา ชัชวาลวานิช, รองศาสตราจารย์, ราเชนทร์ วิสุทธิแพทย์ สื่อสิ่งพิมพ์:pdf AbstractThe male reproductive organs of whip-tail stingray (Dasyatis bleekeri) were grossly observed and found that testes were paired and embeded in the epigonal organs. Each testis was composed of many lobes which supported by connective tissue. The average length, width and thickness of testis were 7.5, 3.5 and 1.7 cm., respectively. Microscopic study showed that the unit structure of testicular lobe was spherical ampulla. In each ampulla contained the developing spermatogenic cells of the same stage. The interstitial cells were also found between the ampulae. The testicular lobes were zonately arranged, each zone consisted of ampullae, again, all at the same stage of spermatogenesis. The ampullae were originated in the ampullogenic zone and later developed into the following forms of spermatogonial ampulla, primary spermatocyte ampulla, secondary spermatocyte ampulla, spermatid ampulla, spermatozoal ampulla and finally became empty ampulla. Spermatozoa were released from testis into vas efferent, epididymis, vas deferens and seminal vesicles, respectively. |
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ผลงานตีพิมพ์ในวารสารวิชาการHistological structure of the digestive tract of the freshwater pearl mussel hyriopsis (Hyriopsis) bialatus (Bivalvia: Unionidae)ผู้แต่ง:Tantiwisawaruji, S., Mrs.Kannika Chatchavalvanich, Associate Professor, Dr.Uthaiwan Kovitvadhi, Associate Professor, Mrs.Amara Thongpan, Associate Professor, Kovitvadhi, S., วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการHistological structure of gonads in the freshwater pearl mussel, Hyriopsis (Hyriopsis) bialatus Simpson, 1900ผู้แต่ง:Mrs.Kannika Chatchavalvanich, Associate Professor, Jindamongkon, P, Dr.Uthaiwan Kovitvadhi, Associate Professor, Mrs.Amara Thongpan, Associate Professor, Kovitvadhi, S, วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการHistomorphological studies of the testis and male genital ducts of Supachai’s caecilian, Ichthyophis supachaii Taylor, 1960 (Amphibia: Gymnophiona)ผู้แต่ง:อัคนี ผิวหอม, Dr.Pramote Chumnanpuen, Assistant Professor, อิศเรส มุยคำ, Mrs.Kannika Chatchavalvanich, Associate Professor, Dr.Nopparat Srakaew, Assistant Professor, วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการLocalization of serotonin in neuronal ganglia of the freshwater pearl mussel, Hyriopsis (Hyriopsis) bialataผู้แต่ง:Meechonkit, P, Dr.Uthaiwan Kovitvadhi, Associate Professor, Mrs.Kannika Chatchavalvanich, Associate Professor, Sretarugsa, P, Weerachatyanukul, W, วารสาร: |