scholarly journals Tingkat Kematangan Gonad Kepiting Bakau (Scylla serrata) yang Di Induksi Hormon Oodev (Oocyte Development)

2020 ◽  
Vol 4 (1) ◽  
pp. 37-43
Author(s):  
Syarifah fitriana Syarifah ◽  
Wiwin Kusuma Atmaja Putra ◽  
Shavika Miranti
Keyword(s):  
Oocyte Development ◽  
Scylla Serrata

Kepiting bakau (S. serrata) merupakan jenis kepiting yang paling popular sebagai bahan makanan dan mempunyai harga jual yang cukup mahal. Penelitian ini berjudul Tingkat Kematangan Gonad Kepiting Bakau (S. serrata) yang di Induksi Hormon Oodev (Oocyte Development). Penelitian ini bertujuan untuk mengetahui tingkat kematangan gonad kepiting bakau (S. serrata) dan dosis terbaik untuk meransang kematangan gonad dengan di induksi hormon Oodev. Penelitian ini dilakukan pada bulan Oktober 2019 selama 30 hari di Desa Tanjung Lanjut. Penelitian ini dilakukan dengan rancangan acak lengkap dengan 4 perlakuan dan 3 ulangan, perlakuan K (Tanpa hormon), perlakuan A (0.5ml/kg bobot tubuh), perlakuan B (1ml/kg bobot tubuh) dan perlakuan C (1.5ml/kg bobot tubuh). Hasil penelitian menunjukkan hormon dengan dosis terbaik yaitu pada perlakuan B (1ml/kg bobot tubuh) dapat meningkatkan kematangan gonad mencapai TKG IV dengan nilai persentase kematangan gonad sebesar 100%, nilai Gonadosomatik indeks sebesar 6.27%, nilai Hepatosomatik indeks sebesar 0.27%, nilai diameter telur sebesar 0.215mm, nilai parameter pertumbuhan bobot mutlak yang terbaik terdapat pada perlakuan C sebesar 6.50g.

Structures Resembling Striated Rootlets in Oocytes

1972 ◽  
Vol 30 ◽  
pp. 124-125
Author(s):  
Valerie V. Ernst
Keyword(s):  
Golgi Complex ◽  
Fibrous Structure ◽  
Oocyte Development ◽  
The Cross

During the earliest stage of oocyte development in the limpet, Acmea scutum, Golgi complexes are small, few and randomly dispersed in the cytoplasm. As growth proceeds, the Golgi complexes increase in size and number and migrate to the periphery of the cell. At this time, fibrous structures resembling striated rootlets occur associated with the Golgi complexes. Only one fibrous structure appears to be associated with a Golgi complex.The fibers are periodically cross banded with an average of 4 dense fibrils and 6 lighter fibrils per period (Fig. 1). The cross fibrils have a center to center spacing of about 7 run which appears to be the same as that of the striated rootlets of the gill cilia in this animal.

A new shell disease in the mud crab Scylla serrata from Port Curtis, Queensland (Australia)

2000 ◽  
Vol 43 ◽  
pp. 233-239 ◽  
Author(s):  
LE Andersen ◽  
JH Norton ◽  
NH Levy
Keyword(s):  
Scylla Serrata ◽  
Mud Crab ◽  
Shell Disease

Characterization of Major Allergens of Local Mud Crab (Scylla serrata)

2015 ◽  
Vol 12 (1) ◽  
pp. 1 ◽  
Author(s):  
Rosmilah Misnan ◽  
Nurul Izzah Abdul Rahman ◽  
Zailatul Hani Mohd Yadzir ◽  
Noormalin Abdullah ◽  
Mohd Faizal Bakhtiar ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Arginine Kinase ◽  
Mass Spectrometry Analysis ◽  
Scylla Serrata ◽  
Mud Crab ◽  
Meat Allergy ◽  
Proteomic Approach ◽  
The World ◽  
Major Allergens ◽  
Crab Meat

Crab meat is widely consumed in several countries around the world. However, when consumed, crab meats are frequent cause of allergic reactions throughout the world. Scylla serrata is among the most common mud crab in Malaysia. In a previous study two major allergens of mud crab at 36 and 41 kDa was identified. Thus, the aim of this study is to further identify these major allergens by a proteomic approach. Protein extract was prepared and resolved by 2-dimensional electrophoresis (2-DE). Immunoblotting was then performed using reactive sera from patients with crab allergy. Major allergenic spots were then excised from the 2-DE gel and analysed by mass spectrometry. The 2-DE profile of the extract revealed approximately >100 protein spots between pH of 4.00 to 8.00. Mass spectrometry analysis has identified the 36 and 41 kDa proteins as tropomyosin and arginine kinase, respectively. Our findings indicated that tropomyosin and arginine kinase play a major role in allergic reaction to mud crab meat among local patients with crab meat allergy, and should be included in diagnostics and therapeutic strategies of this allergy.

ẢNH HƯỞNG CỦA NHIỆT ĐỘ ĐẾN TỶ LỆ SỐNG VÀ THỜI GIAN BIẾN THÁI ẤU TRÙNG CUA XANH Scylla serrata (Forskal, 1775) GIAI ĐOẠN ZOEA ĐẾN MEGALOPA.

2015 ◽  
Vol 104 (5) ◽  
Author(s):  
Nguyễn Đức Thành ◽  
Nguyễn Duy Quỳnh Trâm ◽  
Nguyễn Khoa Huy Sơn ◽  
Phạm Thị Phương Lan
Keyword(s):  
Scylla Serrata

Nghiên cứu này nhằm đánh giá ảnh hưởng các mức nhiệt độ lên tỷ lệ sống và thời gian biến thái của ấu trùng cua xanh Scylla serata giai đoạn Zoea đến Megalopa. Thí nghiệm được tiến hành từ giai đoạn Zoea2, theo kiểu khối ngẫu nhiên hoàn toàn với 4 nghiệm thức tương ứng với 4 mức nhiệt độ  25, 27, 29 và 31 0C. Kết quả thí nghiệm cho thấy có sự ảnh hưởng khác biệt về tỷ lệ sống và thời gian biến thái giữa các mức nhiệt độ với mức tin cậy p<0,05 . Khoảng nhiệt độ từ 270C đến 290C cho tỷ lệ sống ấu trùng cao,  nghiệm thức nhiệt độ 290C cho tỷ lệ sống của ấu trùng cao nhất ở giai đoạn Zoea2 và Zoea4. Nhiệt độ thí nghiệm càng tăng thời gian biến thái của ấu trùng càng ngắn. Từ khóa: cua xanh, ấu trùng, nhiệt độ, tỷ lệ sống, thời gian biến thái

Ovaprim treatment promotes oocyte development and milt fertilization rate in diploid and triploid African catfish (Clarias gariepinus)

2011 ◽  
Vol 19 (6) ◽  
pp. 1025-1034 ◽  
Author(s):  
Ali Karami ◽  
Annie Christianus ◽  
Hadi Zokaeifar ◽  
Khairul Zamri Saad ◽  
Fahmi T. J. Imraan ◽  
...  
Keyword(s):  
Clarias Gariepinus ◽  
Fertilization Rate ◽  
Oocyte Development ◽  
African Catfish

scholarly journals Co-Infection of Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV) and White Spot Syndrome Virus (WSSV) in the Wild Crustaceans of Andaman and Nicobar Archipelago, India

Viruses ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1378
Author(s):  
Kandasamy Saravanan ◽  
Jayasimhan Praveenraj ◽  
Rajendran Kiruba-Sankar ◽  
Varsha Devi ◽  
Utpal Biswas ◽  
...  
Keyword(s):  
Inclusion Bodies ◽  
White Spot Syndrome Virus ◽  
Penaeus Monodon ◽  
White Spot ◽  
Scylla Serrata ◽  
Histopathological Analysis ◽  
Necrosis Virus ◽  
High Sequence Identity ◽  
In The Wild ◽  
White Spot Syndrome

The present study was intended to screen the wild crustaceans for co-infection with Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV) and White Spot Syndrome Virus (WSSV) in Andaman and Nicobar Archipelago, India. We screened a total of 607 shrimp and 110 crab samples using a specific polymerase chain reaction, and out of them, 82 shrimps (13.5%) and 5 (4.5%) crabs were found positive for co-infection of IHHNV and WSSV. A higher rate of co-infection was observed in Penaeus monodon and Scylla serrata than other shrimp and crab species. The nucleotide sequences of IHHNV and WSSV obtained from crab in this present study exhibited very high sequence identity with their counterparts retrieved from various countries. Histopathological analysis of the infected shrimp gill sections further confirmed the eosinophilic intra-nuclear cowdry type A inclusion bodies and basophilic intra-nuclear inclusion bodies characteristics of IHHNV and WSSV infections, respectively. The present study serves as the first report on co-infection of WSSV and IHHNV in Andaman and Nicobar Archipelago, India and accentuates the critical need for continuous monitoring of wild crustaceans and appropriate biosecurity measures for brackishwater aquaculture.

Maturity and breeding of the mud crab,Scylla serrata (Forskal) (Decapoda: Brachyura: Portunidae)

1989 ◽  
Vol 98 (5) ◽  
pp. 341-349 ◽  
Author(s):  
P N Prasad ◽  
B Neelakantan
Keyword(s):  
Scylla Serrata ◽  
Mud Crab

scholarly journals Modulation of Cell–Cell Interactions in Drosophila Oocyte Development

Cells ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 274
Author(s):  
Matthew Antel ◽  
Mayu Inaba
Keyword(s):  
Cell Communication ◽  
Cell Interaction ◽  
Oocyte Development ◽  
Suitable Model ◽  
Physiological Regulation ◽  
Temporal Regulation ◽  
Cellular Processes ◽  
Cellular Machinery ◽  
Drosophila Ovary ◽  
Cell Cell

The Drosophila ovary offers a suitable model system to study the mechanisms that orchestrate diverse cellular processes. Oogenesis starts from asymmetric stem cell division, proper differentiation and the production of fully patterned oocytes equipped with all the maternal information required for embryogenesis. Spatial and temporal regulation of cell-cell interaction is particularly important to fulfill accurate biological outcomes at each step of oocyte development. Progress has been made in understanding diverse cell physiological regulation of signaling. Here we review the roles of specialized cellular machinery in cell-cell communication in different stages of oogenesis.

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