Effects of type of ionophore and carrier on in vitro ruminal dry matter disappearance, gas production, and fermentation end products of a concentrate substrate

Effects of ionophore type and carrier on in vitro ruminal digestion and fermentation patterns of a concentrate substrate were evaluated at various incubation times. Treatments were: control (no ionophore); lasalocid sodium commercial premix (Bov); lasalocid sodium mycelium cake (LasBio); laidlomycin...

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Veröffentlicht in:Animal feed science and technology 2012-02, Vol.171 (2-4), p.223-229
Hauptverfasser: Ponce, C.H., Smith, D.R., Branine, M.E., Hubbert, M.E., Galyean, M.L.
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container_issue 2-4
container_start_page 223
container_title Animal feed science and technology
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creator Ponce, C.H.
Smith, D.R.
Branine, M.E.
Hubbert, M.E.
Galyean, M.L.
description Effects of ionophore type and carrier on in vitro ruminal digestion and fermentation patterns of a concentrate substrate were evaluated at various incubation times. Treatments were: control (no ionophore); lasalocid sodium commercial premix (Bov); lasalocid sodium mycelium cake (LasBio); laidlomycin sodium salt (LaidNa); laidlomycin propionate commercial premix (LaidPro); monensin sodium salt (Mon); and monensin sodium commercial premix (Rum). The Bov, LasBio, Mon, and Rum treatments supplied 4μg of ionophore/mL of culture volume, whereas the LaidNa and LaidPro treatments supplied 1.33μg of ionophore/mL. Total gas and methane production did not differ among treatments at any of the incubation times (P>0.09). Similarly, in vitro dry matter disappearance (IVDMD) was not affected by treatment (P>0.28) at 6, 18, and 24h of incubation; however, IVDMD (P=0.03) was greater for ionophores than for the control at 12h of incubation. Molar proportions of acetate (P
doi_str_mv 10.1016/j.anifeedsci.2011.11.003
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Treatments were: control (no ionophore); lasalocid sodium commercial premix (Bov); lasalocid sodium mycelium cake (LasBio); laidlomycin sodium salt (LaidNa); laidlomycin propionate commercial premix (LaidPro); monensin sodium salt (Mon); and monensin sodium commercial premix (Rum). The Bov, LasBio, Mon, and Rum treatments supplied 4μg of ionophore/mL of culture volume, whereas the LaidNa and LaidPro treatments supplied 1.33μg of ionophore/mL. Total gas and methane production did not differ among treatments at any of the incubation times (P>0.09). Similarly, in vitro dry matter disappearance (IVDMD) was not affected by treatment (P>0.28) at 6, 18, and 24h of incubation; however, IVDMD (P=0.03) was greater for ionophores than for the control at 12h of incubation. Molar proportions of acetate (P<0.01), acetate:propionate (P<0.01), and total volatile fatty acid (VFA) concentrations (P<0.01) were decreased and propionate was increased (P<0.001) for the average of all ionophore-containing substrates compared with the control. Total VFA were decreased by Bov, LaidNa, and Rum, contrasted with their specific counterparts (LasBio, LaidPro, and Mon, respectively; P<0.05). Differences were detected among ionophore types for acetate (lasalocid vs. laidlomycin; P<0.05), propionate (lasalocid vs. monensin; P<0.05), and butyrate (monensin vs. lasalocid or laidlomycin; P<0.05). Capture of metabolic hydrogen in end products of fermentation was greater for ionophore-containing treatments (P<0.01) than for the control. 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Treatments were: control (no ionophore); lasalocid sodium commercial premix (Bov); lasalocid sodium mycelium cake (LasBio); laidlomycin sodium salt (LaidNa); laidlomycin propionate commercial premix (LaidPro); monensin sodium salt (Mon); and monensin sodium commercial premix (Rum). The Bov, LasBio, Mon, and Rum treatments supplied 4μg of ionophore/mL of culture volume, whereas the LaidNa and LaidPro treatments supplied 1.33μg of ionophore/mL. Total gas and methane production did not differ among treatments at any of the incubation times (P>0.09). Similarly, in vitro dry matter disappearance (IVDMD) was not affected by treatment (P>0.28) at 6, 18, and 24h of incubation; however, IVDMD (P=0.03) was greater for ionophores than for the control at 12h of incubation. Molar proportions of acetate (P<0.01), acetate:propionate (P<0.01), and total volatile fatty acid (VFA) concentrations (P<0.01) were decreased and propionate was increased (P<0.001) for the average of all ionophore-containing substrates compared with the control. Total VFA were decreased by Bov, LaidNa, and Rum, contrasted with their specific counterparts (LasBio, LaidPro, and Mon, respectively; P<0.05). Differences were detected among ionophore types for acetate (lasalocid vs. laidlomycin; P<0.05), propionate (lasalocid vs. monensin; P<0.05), and butyrate (monensin vs. lasalocid or laidlomycin; P<0.05). Capture of metabolic hydrogen in end products of fermentation was greater for ionophore-containing treatments (P<0.01) than for the control. 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Psychology</topic><topic>In vitro</topic><topic>Ionophores</topic><topic>Methane</topic><topic>Ruminal fermentation</topic><topic>Volatile fatty acids</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ponce, C.H.</creatorcontrib><creatorcontrib>Smith, D.R.</creatorcontrib><creatorcontrib>Branine, M.E.</creatorcontrib><creatorcontrib>Hubbert, M.E.</creatorcontrib><creatorcontrib>Galyean, M.L.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Animal feed science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ponce, C.H.</au><au>Smith, D.R.</au><au>Branine, M.E.</au><au>Hubbert, M.E.</au><au>Galyean, M.L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of type of ionophore and carrier on in vitro ruminal dry matter disappearance, gas production, and fermentation end products of a concentrate substrate</atitle><jtitle>Animal feed science and technology</jtitle><date>2012-02-10</date><risdate>2012</risdate><volume>171</volume><issue>2-4</issue><spage>223</spage><epage>229</epage><pages>223-229</pages><issn>0377-8401</issn><eissn>1873-2216</eissn><coden>AFSTDH</coden><abstract><![CDATA[Effects of ionophore type and carrier on in vitro ruminal digestion and fermentation patterns of a concentrate substrate were evaluated at various incubation times. Treatments were: control (no ionophore); lasalocid sodium commercial premix (Bov); lasalocid sodium mycelium cake (LasBio); laidlomycin sodium salt (LaidNa); laidlomycin propionate commercial premix (LaidPro); monensin sodium salt (Mon); and monensin sodium commercial premix (Rum). The Bov, LasBio, Mon, and Rum treatments supplied 4μg of ionophore/mL of culture volume, whereas the LaidNa and LaidPro treatments supplied 1.33μg of ionophore/mL. Total gas and methane production did not differ among treatments at any of the incubation times (P>0.09). Similarly, in vitro dry matter disappearance (IVDMD) was not affected by treatment (P>0.28) at 6, 18, and 24h of incubation; however, IVDMD (P=0.03) was greater for ionophores than for the control at 12h of incubation. Molar proportions of acetate (P<0.01), acetate:propionate (P<0.01), and total volatile fatty acid (VFA) concentrations (P<0.01) were decreased and propionate was increased (P<0.001) for the average of all ionophore-containing substrates compared with the control. Total VFA were decreased by Bov, LaidNa, and Rum, contrasted with their specific counterparts (LasBio, LaidPro, and Mon, respectively; P<0.05). Differences were detected among ionophore types for acetate (lasalocid vs. laidlomycin; P<0.05), propionate (lasalocid vs. monensin; P<0.05), and butyrate (monensin vs. lasalocid or laidlomycin; P<0.05). Capture of metabolic hydrogen in end products of fermentation was greater for ionophore-containing treatments (P<0.01) than for the control. These data suggest limited unique effects of ionophore type or carrier on IVDMD, total gas production, and methane; however, VFA proportions varied among ionophore types and carriers, which deserves further study.]]></abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.anifeedsci.2011.11.003</doi><tpages>7</tpages></addata></record>
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subjects Acetic acid
Biological and medical sciences
Feed and pet food industries
Food industries
Fundamental and applied biological sciences. Psychology
In vitro
Ionophores
Methane
Ruminal fermentation
Volatile fatty acids
title Effects of type of ionophore and carrier on in vitro ruminal dry matter disappearance, gas production, and fermentation end products of a concentrate substrate
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