Assessment of some nongenetic factors that affect egg mass weight of channel catfish, Ictalurus punctatus
Channel catfish, Ictalurus punctatus, is one of the most important fish species for aquaculture worldwide. Egg mass production is directly related to the success and profitability of hatchery farms assuring an adequate egg and consequently fry and fingerling quantity. Most of the success of hatchery...
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| Veröffentlicht in: | Latin american journal of aquatic research 2017-11, Vol.45 (5), p.979-982 |
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| creator | Parra Bracamonte, Gaspar M. Lara Rivera, Ana Sifuentes Rincon, Ana Martinez Gonzalez, Juan de la Rosa Reyna, Xochitl Montelongo Alfaro, Isidro Moreno Medina, Victor |
| description | Channel catfish, Ictalurus punctatus, is one of the most important fish species for aquaculture worldwide. Egg mass production is directly related to the success and profitability of hatchery farms assuring an adequate egg and consequently fry and fingerling quantity. Most of the success of hatchery farms in Mexico rely on the capacity of production for enough fry to cover the demand of grow-out farms. An analysis was performed with the purpose of estimate the effect of year, month, color, pond and water temperature on egg mass weight data (EMW, g) (n = 3201). The overall mean for EMW was 683.21 g. The effect of all assessed factors was highly significant (P < 0.0001). Pond and year effects suggested an effect possibly related to management strategies. Month indicated an important effect on early spawning, and water temperature showed a highly significant effect of gradient pattern on EMW (P < 0.0001), with a linear slope of -67.8 g by increasing temperature degree. Results confirmed the importance of non-genetic influence on egg mass production, supporting the need for attention of this highly variable trait and suggested the possible improvement on this reproductive indicator through the better control of environmental sources of variation. |
| doi_str_mv | 10.3856/vol45-issue5-fulltext-13 |
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Egg mass production is directly related to the success and profitability of hatchery farms assuring an adequate egg and consequently fry and fingerling quantity. Most of the success of hatchery farms in Mexico rely on the capacity of production for enough fry to cover the demand of grow-out farms. An analysis was performed with the purpose of estimate the effect of year, month, color, pond and water temperature on egg mass weight data (EMW, g) (n = 3201). The overall mean for EMW was 683.21 g. The effect of all assessed factors was highly significant (P < 0.0001). Pond and year effects suggested an effect possibly related to management strategies. Month indicated an important effect on early spawning, and water temperature showed a highly significant effect of gradient pattern on EMW (P < 0.0001), with a linear slope of -67.8 g by increasing temperature degree. Results confirmed the importance of non-genetic influence on egg mass production, supporting the need for attention of this highly variable trait and suggested the possible improvement on this reproductive indicator through the better control of environmental sources of variation.</description><identifier>ISSN: 0718-560X</identifier><identifier>EISSN: 0718-560X</identifier><identifier>DOI: 10.3856/vol45-issue5-fulltext-13</identifier><language>eng</language><publisher>Valparaiso: Pontificia Universidad Catolica de Valparaiso</publisher><subject>Aquaculture ; Capacity ; Catfish ; Colour ; Demand analysis ; Economics ; Farms ; Fingerlings ; Fish ; Fish hatcheries ; Fish production ; FISHERIES ; Fisheries management ; Fry ; Ictalurus furcatus ; Ictalurus punctatus ; MARINE & FRESHWATER BIOLOGY ; Mass ; Mass production ; OCEANOGRAPHY ; Ova ; Ponds ; Profitability ; Spawning ; Temperature effects ; Water temperature ; Weight</subject><ispartof>Latin american journal of aquatic research, 2017-11, Vol.45 (5), p.979-982</ispartof><rights>Copyright Pontificia Universidad Catolica de Valparaiso Nov 2017</rights><rights>This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27903,27904</link.rule.ids></links><search><creatorcontrib>Parra Bracamonte, Gaspar M.</creatorcontrib><creatorcontrib>Lara Rivera, Ana</creatorcontrib><creatorcontrib>Sifuentes Rincon, Ana</creatorcontrib><creatorcontrib>Martinez Gonzalez, Juan</creatorcontrib><creatorcontrib>de la Rosa Reyna, Xochitl</creatorcontrib><creatorcontrib>Montelongo Alfaro, Isidro</creatorcontrib><creatorcontrib>Moreno Medina, Victor</creatorcontrib><title>Assessment of some nongenetic factors that affect egg mass weight of channel catfish, Ictalurus punctatus</title><title>Latin american journal of aquatic research</title><addtitle>Lat. Am. J. Aquat. Res</addtitle><description>Channel catfish, Ictalurus punctatus, is one of the most important fish species for aquaculture worldwide. Egg mass production is directly related to the success and profitability of hatchery farms assuring an adequate egg and consequently fry and fingerling quantity. Most of the success of hatchery farms in Mexico rely on the capacity of production for enough fry to cover the demand of grow-out farms. An analysis was performed with the purpose of estimate the effect of year, month, color, pond and water temperature on egg mass weight data (EMW, g) (n = 3201). The overall mean for EMW was 683.21 g. The effect of all assessed factors was highly significant (P < 0.0001). Pond and year effects suggested an effect possibly related to management strategies. Month indicated an important effect on early spawning, and water temperature showed a highly significant effect of gradient pattern on EMW (P < 0.0001), with a linear slope of -67.8 g by increasing temperature degree. Results confirmed the importance of non-genetic influence on egg mass production, supporting the need for attention of this highly variable trait and suggested the possible improvement on this reproductive indicator through the better control of environmental sources of variation.</description><subject>Aquaculture</subject><subject>Capacity</subject><subject>Catfish</subject><subject>Colour</subject><subject>Demand analysis</subject><subject>Economics</subject><subject>Farms</subject><subject>Fingerlings</subject><subject>Fish</subject><subject>Fish hatcheries</subject><subject>Fish production</subject><subject>FISHERIES</subject><subject>Fisheries management</subject><subject>Fry</subject><subject>Ictalurus furcatus</subject><subject>Ictalurus punctatus</subject><subject>MARINE & FRESHWATER BIOLOGY</subject><subject>Mass</subject><subject>Mass production</subject><subject>OCEANOGRAPHY</subject><subject>Ova</subject><subject>Ponds</subject><subject>Profitability</subject><subject>Spawning</subject><subject>Temperature effects</subject><subject>Water temperature</subject><subject>Weight</subject><issn>0718-560X</issn><issn>0718-560X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNpNkUtPwzAQhC0EElXpf7DElRQ7jpP4WFU8KlXiAEjcLMexk1SJXbIOj3-PS0Gwl53DfLvSDEKYkiUreX795vuMJx3AZHhip74P5iMklJ2gGSlomfCcvJz-0-doAbAjcTijecpnqFsBGIDBuIC9xeAHg513jXEmdBpbpYMfAYdWBaysNTpg0zR4UAD43XRN-43pVjlneqxVsB20V3ijg-qncQK8n1zUYYILdGZVD2bxs-fo-fbmaX2fbB_uNuvVNtEspSGpuDJEsLxguRWW1ZpnlGSpqGjJ6opTzSqSVqKwFaOKEa6oTUuhMmprWhBVszlaHu-C7kzv5c5Po4sP5eMhBnmIISXRGjMgRBQiApdHYD_618lA-EOoKCJTMMqiqzy69OgBRmPlfuwGNX5KSuShDPldhjyWIX_LkBH9AichgnQ</recordid><startdate>20171101</startdate><enddate>20171101</enddate><creator>Parra Bracamonte, Gaspar M.</creator><creator>Lara Rivera, Ana</creator><creator>Sifuentes Rincon, Ana</creator><creator>Martinez Gonzalez, Juan</creator><creator>de la Rosa Reyna, Xochitl</creator><creator>Montelongo Alfaro, Isidro</creator><creator>Moreno Medina, Victor</creator><general>Pontificia Universidad Catolica de Valparaiso</general><general>Pontificia Universidad Católica de Valparaíso. 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Am. J. Aquat. Res</addtitle><date>2017-11-01</date><risdate>2017</risdate><volume>45</volume><issue>5</issue><spage>979</spage><epage>982</epage><pages>979-982</pages><issn>0718-560X</issn><eissn>0718-560X</eissn><abstract>Channel catfish, Ictalurus punctatus, is one of the most important fish species for aquaculture worldwide. Egg mass production is directly related to the success and profitability of hatchery farms assuring an adequate egg and consequently fry and fingerling quantity. Most of the success of hatchery farms in Mexico rely on the capacity of production for enough fry to cover the demand of grow-out farms. An analysis was performed with the purpose of estimate the effect of year, month, color, pond and water temperature on egg mass weight data (EMW, g) (n = 3201). The overall mean for EMW was 683.21 g. The effect of all assessed factors was highly significant (P < 0.0001). Pond and year effects suggested an effect possibly related to management strategies. Month indicated an important effect on early spawning, and water temperature showed a highly significant effect of gradient pattern on EMW (P < 0.0001), with a linear slope of -67.8 g by increasing temperature degree. Results confirmed the importance of non-genetic influence on egg mass production, supporting the need for attention of this highly variable trait and suggested the possible improvement on this reproductive indicator through the better control of environmental sources of variation.</abstract><cop>Valparaiso</cop><pub>Pontificia Universidad Catolica de Valparaiso</pub><doi>10.3856/vol45-issue5-fulltext-13</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Latin american journal of aquatic research, 2017-11, Vol.45 (5), p.979-982 |
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| subjects | Aquaculture Capacity Catfish Colour Demand analysis Economics Farms Fingerlings Fish Fish hatcheries Fish production FISHERIES Fisheries management Fry Ictalurus furcatus Ictalurus punctatus MARINE & FRESHWATER BIOLOGY Mass Mass production OCEANOGRAPHY Ova Ponds Profitability Spawning Temperature effects Water temperature Weight |
| title | Assessment of some nongenetic factors that affect egg mass weight of channel catfish, Ictalurus punctatus |
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