Effect of Photoperiod on Growth and Efficiency of Yolk-Sac Utilization in Alevins of Brook Trout
Photoperiod is known as a key factor influencing the growth, feed conversion efficiency and other physiological functions of a fish. In this study, the effects of photoperiod on growth and yolk conversion efficiency in brook trout (Salvelinus fontinalis) alevins were demonstrated under three differe...
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| Veröffentlicht in: | Pakistan journal of zoology 2016-04, Vol.48 (2), p.533 |
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| creator | Sonay, Fatma Delihasan Onder, Mustafa Yusuf Bascinar, Nadir Khan, Umar |
| description | Photoperiod is known as a key factor influencing the growth, feed conversion efficiency and other physiological functions of a fish. In this study, the effects of photoperiod on growth and yolk conversion efficiency in brook trout (Salvelinus fontinalis) alevins were demonstrated under three different photoperiod regimes. The newly hatched brook trout alevins (491.4 degree-days) were reared under a natural photoperiod regime (control group) and two fixed photoperiod regimes: 24h L (continuous light) and 24h D (continuous darkness). Brook trout alevins held under 24h L photoperiod regime had greater weight gain and yolk conversion efficiency (YCE) with lower development index (KD) value while alevins held under 24h D photoperiod regime had the lowest growth rate and YCE with greater KD value. In all groups, a strong linear correlation (above r2=0.9) was found between alevin weight and degree-days, and yolk-sac weight and degree-days. |
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In this study, the effects of photoperiod on growth and yolk conversion efficiency in brook trout (Salvelinus fontinalis) alevins were demonstrated under three different photoperiod regimes. The newly hatched brook trout alevins (491.4 degree-days) were reared under a natural photoperiod regime (control group) and two fixed photoperiod regimes: 24h L (continuous light) and 24h D (continuous darkness). Brook trout alevins held under 24h L photoperiod regime had greater weight gain and yolk conversion efficiency (YCE) with lower development index (KD) value while alevins held under 24h D photoperiod regime had the lowest growth rate and YCE with greater KD value. In all groups, a strong linear correlation (above r2=0.9) was found between alevin weight and degree-days, and yolk-sac weight and degree-days.</description><identifier>ISSN: 0030-9923</identifier><language>eng</language><publisher>Lahore: Knowledge Bylanes</publisher><subject>Animal development ; Aquaculture ; Bass ; Brook trout ; Conversion ; Darkness ; Efficiency ; Feed conversion ; Fish hatcheries ; Fishing ; Growth ; Growth rate ; Light ; Photoperiods ; Physiological aspects ; Physiological effects ; Salvelinus fontinalis ; Trout ; Water temperature ; Yolk ; Zoological research</subject><ispartof>Pakistan journal of zoology, 2016-04, Vol.48 (2), p.533</ispartof><rights>COPYRIGHT 2016 Knowledge Bylanes</rights><rights>Copyright 2016 Pakistan Journal of Zoology</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780</link.rule.ids></links><search><creatorcontrib>Sonay, Fatma Delihasan</creatorcontrib><creatorcontrib>Onder, Mustafa Yusuf</creatorcontrib><creatorcontrib>Bascinar, Nadir</creatorcontrib><creatorcontrib>Khan, Umar</creatorcontrib><title>Effect of Photoperiod on Growth and Efficiency of Yolk-Sac Utilization in Alevins of Brook Trout</title><title>Pakistan journal of zoology</title><description>Photoperiod is known as a key factor influencing the growth, feed conversion efficiency and other physiological functions of a fish. In this study, the effects of photoperiod on growth and yolk conversion efficiency in brook trout (Salvelinus fontinalis) alevins were demonstrated under three different photoperiod regimes. The newly hatched brook trout alevins (491.4 degree-days) were reared under a natural photoperiod regime (control group) and two fixed photoperiod regimes: 24h L (continuous light) and 24h D (continuous darkness). Brook trout alevins held under 24h L photoperiod regime had greater weight gain and yolk conversion efficiency (YCE) with lower development index (KD) value while alevins held under 24h D photoperiod regime had the lowest growth rate and YCE with greater KD value. In all groups, a strong linear correlation (above r2=0.9) was found between alevin weight and degree-days, and yolk-sac weight and degree-days.</description><subject>Animal development</subject><subject>Aquaculture</subject><subject>Bass</subject><subject>Brook trout</subject><subject>Conversion</subject><subject>Darkness</subject><subject>Efficiency</subject><subject>Feed conversion</subject><subject>Fish hatcheries</subject><subject>Fishing</subject><subject>Growth</subject><subject>Growth rate</subject><subject>Light</subject><subject>Photoperiods</subject><subject>Physiological aspects</subject><subject>Physiological effects</subject><subject>Salvelinus fontinalis</subject><subject>Trout</subject><subject>Water temperature</subject><subject>Yolk</subject><subject>Zoological research</subject><issn>0030-9923</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNotzVFLwzAQB_A-KDjmvkPA50qapG3yWMecwmCC24NPM00vW7aam2mm6Kc3Y97B_eH4cXeVjSjlNFeK8ZtsMgx7mkpUJWNylL3PrAUTCVryssOIRwgOO4KezAN-xx3RviPJOOPAm5-ze8P-kL9qQ9bR9e5XR5e086Tp4cv54UweAuKBrAKe4m12bXU_wOQ_x9n6cbaaPuWL5fx52izyLWMs5kJqVRe1qmkFTPGCtbU0kmslS1ZIUVetNpwrIxRIaroWSq0FlK22wI2Blo-zu8vdY8DPEwxxs8dT8OnlhlGqWE2l4EndX9RW97Bx3mIM2qTu4MMZ9GBd2jeiLJRQafI_0gBf5w</recordid><startdate>20160401</startdate><enddate>20160401</enddate><creator>Sonay, Fatma Delihasan</creator><creator>Onder, Mustafa Yusuf</creator><creator>Bascinar, Nadir</creator><creator>Khan, Umar</creator><general>Knowledge Bylanes</general><general>AsiaNet Pakistan (Pvt) Ltd</general><scope>7QG</scope><scope>7SS</scope><scope>7XB</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>LK8</scope><scope>M2P</scope><scope>M7P</scope><scope>P64</scope><scope>PATMY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>RC3</scope></search><sort><creationdate>20160401</creationdate><title>Effect of Photoperiod on Growth and Efficiency of Yolk-Sac Utilization in Alevins of Brook Trout</title><author>Sonay, Fatma Delihasan ; Onder, Mustafa Yusuf ; Bascinar, Nadir ; Khan, Umar</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g222t-48a97179706e29312b78c83a985218476bac339c49e80cdbe5aa4e5bafe3cceb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Animal development</topic><topic>Aquaculture</topic><topic>Bass</topic><topic>Brook trout</topic><topic>Conversion</topic><topic>Darkness</topic><topic>Efficiency</topic><topic>Feed conversion</topic><topic>Fish hatcheries</topic><topic>Fishing</topic><topic>Growth</topic><topic>Growth rate</topic><topic>Light</topic><topic>Photoperiods</topic><topic>Physiological aspects</topic><topic>Physiological effects</topic><topic>Salvelinus fontinalis</topic><topic>Trout</topic><topic>Water temperature</topic><topic>Yolk</topic><topic>Zoological research</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sonay, Fatma Delihasan</creatorcontrib><creatorcontrib>Onder, Mustafa Yusuf</creatorcontrib><creatorcontrib>Bascinar, Nadir</creatorcontrib><creatorcontrib>Khan, Umar</creatorcontrib><collection>Animal Behavior Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Science Database</collection><collection>Biological Science Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>Genetics Abstracts</collection><jtitle>Pakistan journal of zoology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sonay, Fatma Delihasan</au><au>Onder, Mustafa Yusuf</au><au>Bascinar, Nadir</au><au>Khan, Umar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Photoperiod on Growth and Efficiency of Yolk-Sac Utilization in Alevins of Brook Trout</atitle><jtitle>Pakistan journal of zoology</jtitle><date>2016-04-01</date><risdate>2016</risdate><volume>48</volume><issue>2</issue><spage>533</spage><pages>533-</pages><issn>0030-9923</issn><abstract>Photoperiod is known as a key factor influencing the growth, feed conversion efficiency and other physiological functions of a fish. In this study, the effects of photoperiod on growth and yolk conversion efficiency in brook trout (Salvelinus fontinalis) alevins were demonstrated under three different photoperiod regimes. The newly hatched brook trout alevins (491.4 degree-days) were reared under a natural photoperiod regime (control group) and two fixed photoperiod regimes: 24h L (continuous light) and 24h D (continuous darkness). Brook trout alevins held under 24h L photoperiod regime had greater weight gain and yolk conversion efficiency (YCE) with lower development index (KD) value while alevins held under 24h D photoperiod regime had the lowest growth rate and YCE with greater KD value. In all groups, a strong linear correlation (above r2=0.9) was found between alevin weight and degree-days, and yolk-sac weight and degree-days.</abstract><cop>Lahore</cop><pub>Knowledge Bylanes</pub></addata></record> |
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| ispartof | Pakistan journal of zoology, 2016-04, Vol.48 (2), p.533 |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Animal development Aquaculture Bass Brook trout Conversion Darkness Efficiency Feed conversion Fish hatcheries Fishing Growth Growth rate Light Photoperiods Physiological aspects Physiological effects Salvelinus fontinalis Trout Water temperature Yolk Zoological research |
| title | Effect of Photoperiod on Growth and Efficiency of Yolk-Sac Utilization in Alevins of Brook Trout |
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