Net energy and ractopamine to finishing gilts under high temperature environment/Energia liquida e ractopamina para leitoas em terminacao sob altas temperaturas ambientais
The objective of this paper was to assess net energy (NE) levels and ractopamine in the diet of finishing gilts maintained under high temperature environment (29.5 [+ or -] 2.3[degrees]C). Forty gilts were used, with initial weight of 69.3 [+ or -] 2.8kg, distributed in a randomized block design, in...
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Veröffentlicht in: | Ciência rural 2011-05, Vol.41 (5), p.888 |
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description | The objective of this paper was to assess net energy (NE) levels and ractopamine in the diet of finishing gilts maintained under high temperature environment (29.5 [+ or -] 2.3[degrees]C). Forty gilts were used, with initial weight of 69.3 [+ or -] 2.8kg, distributed in a randomized block design, in a factorial scheme 2x4 (0 and 20ppm of ractopamine; and 2,300; 2,424; 2,548 and 2,668kcal/kg NE [kg.sup.-1] of feed), and five replications and one animal each. There was interaction (P |
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Forty gilts were used, with initial weight of 69.3 [+ or -] 2.8kg, distributed in a randomized block design, in a factorial scheme 2x4 (0 and 20ppm of ractopamine; and 2,300; 2,424; 2,548 and 2,668kcal/kg NE [kg.sup.-1] of feed), and five replications and one animal each. There was interaction (P<0.05) between NE levels and ractopamine, and the inclusion of 20ppm of ractopamine in the diets containing 2,548 and 2,668kcal reduced (P<0.05) backfat thickness and increased (P<0.05) the percentage of lean meat of carcasses. The use of ractopamine improved (P<0.05) feed gain ratio and increased (P<0.05) the amount of lean meat in carcasses. It was concluded that ractopamine at a dose of 20ppm provides benefits in performance and carcass traits of gilts under heat stress and this effect is more positive in diets containing higher energy levels (2,548 and 2,668kcal of NE [kg.sup.-1]).</description><identifier>ISSN: 0103-8478</identifier><language>spa</language><publisher>Universidade Federal de Santa Maria</publisher><subject>Meat</subject><ispartof>Ciência rural, 2011-05, Vol.41 (5), p.888</ispartof><rights>COPYRIGHT 2011 Universidade Federal de Santa Maria</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>314,780,784</link.rule.ids></links><search><creatorcontrib>de Moura, Mariana Souza</creatorcontrib><creatorcontrib>Kiefer, Charles</creatorcontrib><creatorcontrib>Silva, Camilla Mendonca</creatorcontrib><creatorcontrib>dos Santos, Alexandre Pereira</creatorcontrib><creatorcontrib>Fantini, Caiki Calepso</creatorcontrib><creatorcontrib>Lucas, Lucia dos Santos</creatorcontrib><title>Net energy and ractopamine to finishing gilts under high temperature environment/Energia liquida e ractopamina para leitoas em terminacao sob altas temperaturas ambientais</title><title>Ciência rural</title><description>The objective of this paper was to assess net energy (NE) levels and ractopamine in the diet of finishing gilts maintained under high temperature environment (29.5 [+ or -] 2.3[degrees]C). 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It was concluded that ractopamine at a dose of 20ppm provides benefits in performance and carcass traits of gilts under heat stress and this effect is more positive in diets containing higher energy levels (2,548 and 2,668kcal of NE [kg.sup.-1]).</description><subject>Meat</subject><issn>0103-8478</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqNzcFKBDEMBuAeFFxd3yHgebGzU9nxKLLiyZP3JTuT6UTadGwzgs_kS9oFQY-eQv4_fDkzK9vYdtO5XXdhLkt5s3a7a51bma8XUiCh7D8BZYCMvaYZIwuBJhhZuEwsHjwHLbDIQBkm9hMoxZky6pKpAh-ck0QSvd2fMEYI_L7wgEB_TIQZc62INWEBilXJp7zHBCUdAYPW_JeuC8YjVxe5rM35iKHQ9c-8MjdP-9fH543HQAeWMWl9Fbn0hwfntk1zd2-79n9X34YlYTY</recordid><startdate>20110501</startdate><enddate>20110501</enddate><creator>de Moura, Mariana Souza</creator><creator>Kiefer, Charles</creator><creator>Silva, Camilla Mendonca</creator><creator>dos Santos, Alexandre Pereira</creator><creator>Fantini, Caiki Calepso</creator><creator>Lucas, Lucia dos Santos</creator><general>Universidade Federal de Santa Maria</general><scope>INF</scope></search><sort><creationdate>20110501</creationdate><title>Net energy and ractopamine to finishing gilts under high temperature environment/Energia liquida e ractopamina para leitoas em terminacao sob altas temperaturas ambientais</title><author>de Moura, Mariana Souza ; Kiefer, Charles ; Silva, Camilla Mendonca ; dos Santos, Alexandre Pereira ; Fantini, Caiki Calepso ; Lucas, Lucia dos Santos</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-gale_infotracmisc_A4421159083</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>spa</language><creationdate>2011</creationdate><topic>Meat</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>de Moura, Mariana Souza</creatorcontrib><creatorcontrib>Kiefer, Charles</creatorcontrib><creatorcontrib>Silva, Camilla Mendonca</creatorcontrib><creatorcontrib>dos Santos, Alexandre Pereira</creatorcontrib><creatorcontrib>Fantini, Caiki Calepso</creatorcontrib><creatorcontrib>Lucas, Lucia dos Santos</creatorcontrib><collection>Gale OneFile: Informe Academico</collection><jtitle>Ciência rural</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>de Moura, Mariana Souza</au><au>Kiefer, Charles</au><au>Silva, Camilla Mendonca</au><au>dos Santos, Alexandre Pereira</au><au>Fantini, Caiki Calepso</au><au>Lucas, Lucia dos Santos</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Net energy and ractopamine to finishing gilts under high temperature environment/Energia liquida e ractopamina para leitoas em terminacao sob altas temperaturas ambientais</atitle><jtitle>Ciência rural</jtitle><date>2011-05-01</date><risdate>2011</risdate><volume>41</volume><issue>5</issue><spage>888</spage><pages>888-</pages><issn>0103-8478</issn><abstract>The objective of this paper was to assess net energy (NE) levels and ractopamine in the diet of finishing gilts maintained under high temperature environment (29.5 [+ or -] 2.3[degrees]C). 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source | DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals |
subjects | Meat |
title | Net energy and ractopamine to finishing gilts under high temperature environment/Energia liquida e ractopamina para leitoas em terminacao sob altas temperaturas ambientais |
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