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Plasma sex steroid hormonal profile and gonad histology during the annual reproductive cycle of river catfish Hemibagrus nemurus (Valenciennes, 1840) in captivity
Plasma sex steroid hormonal profile and gonad histology were correlated to study the annual reproductive cycle of Hemibagrus nemurus . Hormones were measured by Enzyme Linked Immunosorbent Assay. Gonad tissues were observed by using light microscopy. The highest testosterone (T) value for male was o...
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| Published in: | Fish physiology and biochemistry 2013-06, Vol.39 (3), p.547-557 |
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| cites | cdi_FETCH-LOGICAL-c405t-1247232d23fa742204930645e484024b2ba0fea583743aa5152a12a23edb2d143 |
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| container_issue | 3 |
| container_start_page | 547 |
| container_title | Fish physiology and biochemistry |
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| creator | Adebiyi, Fatimat Adenike Siraj, Siti Shapor Harmin, Sharr Azni Christianus, Annie |
| description | Plasma sex steroid hormonal profile and gonad histology were correlated to study the annual reproductive cycle of
Hemibagrus nemurus
. Hormones were measured by Enzyme Linked Immunosorbent Assay. Gonad tissues were observed by using light microscopy. The highest testosterone (T) value for male was observed in November and that of female was in October. 11-ketotestosterone (11-KT) and 17β-estradiol (E2) levels were highest in June and November, respectively. Hormonal profiles of T, 11-KT and E2 showed several peaks which indicated a non-seasonal pattern. There were significant differences (
p
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| doi_str_mv | 10.1007/s10695-012-9718-x |
| format | article |
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Hemibagrus nemurus
. Hormones were measured by Enzyme Linked Immunosorbent Assay. Gonad tissues were observed by using light microscopy. The highest testosterone (T) value for male was observed in November and that of female was in October. 11-ketotestosterone (11-KT) and 17β-estradiol (E2) levels were highest in June and November, respectively. Hormonal profiles of T, 11-KT and E2 showed several peaks which indicated a non-seasonal pattern. There were significant differences (
p
< 0.05) in the monthly levels of T, 11-KT and E2. Gonadosomatic index of
H. nemurus
ranged from 1.14 ± 0.02 % to 7.06 ± 1.40 %, and high gonadosomatic indices were recorded in May, August and November. Gonad histology revealed that spermatozoa were always present in the testes which implied continuous spermatogenesis and asynchronous ovarian development pattern was observed in the ovaries. The annual reproductive cycle of
H. nemurus
did not show a seasonal pattern and this indicate that
H. nemurus
is a non-seasonal breeder with several spawning cycles and can be referred to as indeterminate batch spawner. The major significances of this study are annual sex steroid hormonal profile and asynchronous ovarian development of
H. nemurus
. This information will contribute to our knowledge of reproductive biology of
H. nemurus
.</description><identifier>ISSN: 0920-1742</identifier><identifier>EISSN: 1573-5168</identifier><identifier>DOI: 10.1007/s10695-012-9718-x</identifier><identifier>PMID: 23010937</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Analysis of Variance ; Animal Anatomy ; Animal Biochemistry ; Animal Physiology ; Animals ; Aquaculture ; Biomedical and Life Sciences ; Catfishes - anatomy & histology ; Catfishes - blood ; Enzyme-Linked Immunosorbent Assay ; Estradiol - blood ; Female ; Freshwater & Marine Ecology ; Gametogenesis - physiology ; Gonadal Steroid Hormones - blood ; Gonads - anatomy & histology ; Gonads - physiology ; Histology ; Hormones ; Life Sciences ; Light microscopy ; Male ; Microscopy ; Morphology ; Ovaries ; Plasma ; Reproduction - physiology ; Reproductive cycle ; Seasons ; Spawning ; Spermatogenesis ; Steroids ; Testosterone ; Testosterone - analogs & derivatives ; Testosterone - blood ; Zoology</subject><ispartof>Fish physiology and biochemistry, 2013-06, Vol.39 (3), p.547-557</ispartof><rights>Springer Science+Business Media Dordrecht 2012</rights><rights>Springer Science+Business Media Dordrecht 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c405t-1247232d23fa742204930645e484024b2ba0fea583743aa5152a12a23edb2d143</citedby><cites>FETCH-LOGICAL-c405t-1247232d23fa742204930645e484024b2ba0fea583743aa5152a12a23edb2d143</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23010937$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Adebiyi, Fatimat Adenike</creatorcontrib><creatorcontrib>Siraj, Siti Shapor</creatorcontrib><creatorcontrib>Harmin, Sharr Azni</creatorcontrib><creatorcontrib>Christianus, Annie</creatorcontrib><title>Plasma sex steroid hormonal profile and gonad histology during the annual reproductive cycle of river catfish Hemibagrus nemurus (Valenciennes, 1840) in captivity</title><title>Fish physiology and biochemistry</title><addtitle>Fish Physiol Biochem</addtitle><addtitle>Fish Physiol Biochem</addtitle><description>Plasma sex steroid hormonal profile and gonad histology were correlated to study the annual reproductive cycle of
Hemibagrus nemurus
. Hormones were measured by Enzyme Linked Immunosorbent Assay. Gonad tissues were observed by using light microscopy. The highest testosterone (T) value for male was observed in November and that of female was in October. 11-ketotestosterone (11-KT) and 17β-estradiol (E2) levels were highest in June and November, respectively. Hormonal profiles of T, 11-KT and E2 showed several peaks which indicated a non-seasonal pattern. There were significant differences (
p
< 0.05) in the monthly levels of T, 11-KT and E2. Gonadosomatic index of
H. nemurus
ranged from 1.14 ± 0.02 % to 7.06 ± 1.40 %, and high gonadosomatic indices were recorded in May, August and November. Gonad histology revealed that spermatozoa were always present in the testes which implied continuous spermatogenesis and asynchronous ovarian development pattern was observed in the ovaries. The annual reproductive cycle of
H. nemurus
did not show a seasonal pattern and this indicate that
H. nemurus
is a non-seasonal breeder with several spawning cycles and can be referred to as indeterminate batch spawner. The major significances of this study are annual sex steroid hormonal profile and asynchronous ovarian development of
H. nemurus
. This information will contribute to our knowledge of reproductive biology of
H. nemurus
.</description><subject>Analysis of Variance</subject><subject>Animal Anatomy</subject><subject>Animal Biochemistry</subject><subject>Animal Physiology</subject><subject>Animals</subject><subject>Aquaculture</subject><subject>Biomedical and Life Sciences</subject><subject>Catfishes - anatomy & histology</subject><subject>Catfishes - blood</subject><subject>Enzyme-Linked Immunosorbent Assay</subject><subject>Estradiol - blood</subject><subject>Female</subject><subject>Freshwater & Marine Ecology</subject><subject>Gametogenesis - physiology</subject><subject>Gonadal Steroid Hormones - blood</subject><subject>Gonads - anatomy & histology</subject><subject>Gonads - physiology</subject><subject>Histology</subject><subject>Hormones</subject><subject>Life Sciences</subject><subject>Light microscopy</subject><subject>Male</subject><subject>Microscopy</subject><subject>Morphology</subject><subject>Ovaries</subject><subject>Plasma</subject><subject>Reproduction - physiology</subject><subject>Reproductive cycle</subject><subject>Seasons</subject><subject>Spawning</subject><subject>Spermatogenesis</subject><subject>Steroids</subject><subject>Testosterone</subject><subject>Testosterone - 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Academic</collection><jtitle>Fish physiology and biochemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Adebiyi, Fatimat Adenike</au><au>Siraj, Siti Shapor</au><au>Harmin, Sharr Azni</au><au>Christianus, Annie</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Plasma sex steroid hormonal profile and gonad histology during the annual reproductive cycle of river catfish Hemibagrus nemurus (Valenciennes, 1840) in captivity</atitle><jtitle>Fish physiology and biochemistry</jtitle><stitle>Fish Physiol Biochem</stitle><addtitle>Fish Physiol Biochem</addtitle><date>2013-06-01</date><risdate>2013</risdate><volume>39</volume><issue>3</issue><spage>547</spage><epage>557</epage><pages>547-557</pages><issn>0920-1742</issn><eissn>1573-5168</eissn><abstract>Plasma sex steroid hormonal profile and gonad histology were correlated to study the annual reproductive cycle of
Hemibagrus nemurus
. Hormones were measured by Enzyme Linked Immunosorbent Assay. Gonad tissues were observed by using light microscopy. The highest testosterone (T) value for male was observed in November and that of female was in October. 11-ketotestosterone (11-KT) and 17β-estradiol (E2) levels were highest in June and November, respectively. Hormonal profiles of T, 11-KT and E2 showed several peaks which indicated a non-seasonal pattern. There were significant differences (
p
< 0.05) in the monthly levels of T, 11-KT and E2. Gonadosomatic index of
H. nemurus
ranged from 1.14 ± 0.02 % to 7.06 ± 1.40 %, and high gonadosomatic indices were recorded in May, August and November. Gonad histology revealed that spermatozoa were always present in the testes which implied continuous spermatogenesis and asynchronous ovarian development pattern was observed in the ovaries. The annual reproductive cycle of
H. nemurus
did not show a seasonal pattern and this indicate that
H. nemurus
is a non-seasonal breeder with several spawning cycles and can be referred to as indeterminate batch spawner. The major significances of this study are annual sex steroid hormonal profile and asynchronous ovarian development of
H. nemurus
. This information will contribute to our knowledge of reproductive biology of
H. nemurus
.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><pmid>23010937</pmid><doi>10.1007/s10695-012-9718-x</doi><tpages>11</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0920-1742 |
| ispartof | Fish physiology and biochemistry, 2013-06, Vol.39 (3), p.547-557 |
| issn | 0920-1742 1573-5168 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1356930934 |
| source | Springer Nature |
| subjects | Analysis of Variance Animal Anatomy Animal Biochemistry Animal Physiology Animals Aquaculture Biomedical and Life Sciences Catfishes - anatomy & histology Catfishes - blood Enzyme-Linked Immunosorbent Assay Estradiol - blood Female Freshwater & Marine Ecology Gametogenesis - physiology Gonadal Steroid Hormones - blood Gonads - anatomy & histology Gonads - physiology Histology Hormones Life Sciences Light microscopy Male Microscopy Morphology Ovaries Plasma Reproduction - physiology Reproductive cycle Seasons Spawning Spermatogenesis Steroids Testosterone Testosterone - analogs & derivatives Testosterone - blood Zoology |
| title | Plasma sex steroid hormonal profile and gonad histology during the annual reproductive cycle of river catfish Hemibagrus nemurus (Valenciennes, 1840) in captivity |
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