<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2007-9028</journal-id>
<journal-title><![CDATA[Ecosistemas y recursos agropecuarios]]></journal-title>
<abbrev-journal-title><![CDATA[Ecosistemas y recur. agropecuarios]]></abbrev-journal-title>
<issn>2007-9028</issn>
<publisher>
<publisher-name><![CDATA[Universidad Juárez Autónoma de Tabasco, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-90282017000200371</article-id>
<article-id pub-id-type="doi">10.19136/era.a4n11.1160</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Effect of tanniferous plants on in vitro digestion and methane production]]></article-title>
<article-title xml:lang="es"><![CDATA[Efecto de plantas taníferas en la digestión y producción de metano in vitro]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mohamed Gomaa]]></surname>
<given-names><![CDATA[Raafat Mahmoud]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Ronquillo]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arredondo-Ramos]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Molina]]></surname>
<given-names><![CDATA[Luisa T.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castelán-Ortega]]></surname>
<given-names><![CDATA[Octavio Alonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Ain Shams University Faculty of Agriculture Animal production department]]></institution>
<addr-line><![CDATA[Cairo ]]></addr-line>
<country>Egypt</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma del Estado de México Faculty of Veterinary Medicine and Animal Husbandry ]]></institution>
<addr-line><![CDATA[Toluca ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Molina Center for Energy and the Environment  ]]></institution>
<addr-line><![CDATA[La Jolla CA]]></addr-line>
<country>USA</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2017</year>
</pub-date>
<volume>4</volume>
<numero>11</numero>
<fpage>371</fpage>
<lpage>380</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-90282017000200371&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-90282017000200371&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-90282017000200371&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT: It has been shown that tannins in the foliage of trees and shrubs can reduce methane (CH4) production in the rumen. The aim of the present paper was to evaluate the potential of five tanniferous browse plant species, native to temperate central Mexico, to reduce in vitro methane production. The in vitro gas production technique and gas chromatography were used to evaluate the effect of the inclusion of these plants at three inclusion levels (10, 20 and 30 %) in an experimental diet. A factorial experimental arrangement with the five plant species and four levels of inclusion was used. Gas production was monitored throughout 72 h of incubation and methane production was recorded after 24 h. The results showed that a significant decrease in methane production was observed with all plants at 10 % inclusion level (P &lt; 0.001), and that the highest reduction (&gt; 26 %) was observed with Amaranthus spinosus and Commelina coelestis at 20 % and 30 % inclusion respectively in comparison to the control diet. However, the digestibility of the experimental diet declined at these inclusion levels. It was concluded that all the tested plants reduced methane production at all inclusion levels; however, the best tradeoff between methane reduction and tannins' associated negative effects on diet digestibility was achieved at the 10 % inclusion level.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN: Se ha demostrado que los taninos en el follaje de los árboles y arbustos pueden reducir la producción de metano (CH4) en el rumen. El objetivo del estudio fue evaluar el potencial de cinco especies de plantas arbustivas, nativas de la región de clima templado del centro de México, para reducir la producción in vitro de metano. Los follajes fueron adicionados a 0, 10, 20 y 30 % en base seca a una dieta experimental en un diseño factorial de cinco plantas por cuatro niveles de inclusión. La producción de gas in vitro se monitoreó a lo largo de 72 h de incubación y la producción de metano se registró después de 24 h. Los resultados mostraron una disminución significativa en la producción de metano con todas las especies de plantas a un nivel de inclusión de 10 % (P &lt; 0.001), mientras que la reducción más alta (&gt; 26 %) se observó con Amaranthus spinosus y Commelina coelestis a niveles de inclusión de 20 % y 30 %, respectivamente, en comparación con la dieta control. Sin embargo, la digestibilidad de la dieta experimental disminuyó al aumentar los niveles de inclusión. Se concluyó que las plantas evaluadas en todos los niveles de inclusión redujeron la producción de metano, sin embargo el mejor balance entre la reducción en la producción de metano y los efectos negativos sobre la degradación de la dieta asociados a los taninos se alcanzó a un nivel de inclusión del 10 %.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Plant phenolics]]></kwd>
<kwd lng="en"><![CDATA[tannins]]></kwd>
<kwd lng="en"><![CDATA[in vitro gas production]]></kwd>
<kwd lng="en"><![CDATA[methane emission]]></kwd>
<kwd lng="es"><![CDATA[Fenoles]]></kwd>
<kwd lng="es"><![CDATA[taninos]]></kwd>
<kwd lng="es"><![CDATA[producción de gas in vitro]]></kwd>
<kwd lng="es"><![CDATA[Metano]]></kwd>
<kwd lng="es"><![CDATA[Nutrición]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Repeatability of enteric methane determinations from cattle using either the SF6 tracer technique or the GreenFeed system]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arbre]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Rochette]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Guyader]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Lascoux]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
<name>
<surname><![CDATA[Eugène]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal Production Science]]></source>
<year>2016</year>
<volume>56</volume>
<page-range>238-43</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="">
<collab>AOAC</collab>
<source><![CDATA[Offcial Methods of Analysis]]></source>
<year>1995</year>
<edition>16</edition>
<publisher-loc><![CDATA[Arlington, VA, USA ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Effects of graded levels of tannin-containing tropical tree leaves on in vitro rumen fermentation, total protozoa and methane production]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhatta]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Saravanan]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Baruah]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Prasad]]></surname>
<given-names><![CDATA[CS]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Applied Microbiology]]></source>
<year>2015</year>
<volume>118</volume>
<page-range>557-64</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Methane emissions of beef cattle on forages: effciency of grazing management systems]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[De Ramus]]></surname>
<given-names><![CDATA[HA]]></given-names>
</name>
<name>
<surname><![CDATA[Clement]]></surname>
<given-names><![CDATA[TC]]></given-names>
</name>
<name>
<surname><![CDATA[Giampola]]></surname>
<given-names><![CDATA[DD]]></given-names>
</name>
<name>
<surname><![CDATA[Dickison]]></surname>
<given-names><![CDATA[PC]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Environment Quality]]></source>
<year>2003</year>
<volume>32</volume>
<page-range>269-77</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The biological action of saponins in animal systems: a review]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Francis]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Kerem]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Makkar]]></surname>
<given-names><![CDATA[HP]]></given-names>
</name>
<name>
<surname><![CDATA[Becker]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<source><![CDATA[British Journal of Nutrition]]></source>
<year>2002</year>
<volume>88</volume>
<page-range>587-605</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Effect of tannin and species variation on in vitro digestibility, gas, and methane production of tropical browse plants]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gemeda]]></surname>
<given-names><![CDATA[BS]]></given-names>
</name>
<name>
<surname><![CDATA[Hassen]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<source><![CDATA[Asian-Australasian Journal of Animal Science]]></source>
<year>2015</year>
<volume>28</volume>
<page-range>188-99</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Impact of variation in structure of condensed tannins from sainfoin (Onobrychis viciifolia) on in vitro ruminal methane production and fermentation characteristics]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hatew]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Stringano]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Mueller-Harvey]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Hendriks]]></surname>
<given-names><![CDATA[WH]]></given-names>
</name>
<name>
<surname><![CDATA[Carbonero]]></surname>
<given-names><![CDATA[CH]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[LMJ]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Animal Physiology and Animal Nutrition]]></source>
<year>2016</year>
<volume>100</volume>
<page-range>348-60</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Solomon S]]></surname>
<given-names><![CDATA[Qin D]]></given-names>
</name>
<name>
<surname><![CDATA[Manning]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Marquis]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Averyt]]></surname>
<given-names><![CDATA[KB]]></given-names>
</name>
<name>
<surname><![CDATA[Tignor]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[HL]]></given-names>
</name>
</person-group>
<collab>IPCC</collab>
<source><![CDATA[Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change]]></source>
<year>2007</year>
<publisher-loc><![CDATA[Cambridge, United Kingdom ]]></publisher-loc>
<publisher-name><![CDATA[Cambridge University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Meta-analysis of the relationship between dietary tannin level and methane formation in ruminants from in vivo and in vitro experiments]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jayanegara]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Leiber]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Kreuzer]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Animal Physiology and Animal Nutrition]]></source>
<year>2012</year>
<volume>96</volume>
<page-range>365-75</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Potential nutritive value and methane production of pods, seed and senescent leaves of Gleditsia triacanthos trees]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kaya]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Canbolat]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Atalay]]></surname>
<given-names><![CDATA[AI]]></given-names>
</name>
<name>
<surname><![CDATA[Kurt]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Kamalak]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<source><![CDATA[Livestock Research for Rural Development]]></source>
<year>2016</year>
<volume>28</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>123</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Tannine in Futtermitteln für Wiederkäuer. 1. Chemische Eigenschaften und Reaktionen mit Makromolekülen]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leinmüller]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Menke]]></surname>
<given-names><![CDATA[KH]]></given-names>
</name>
</person-group>
<source><![CDATA[Übers. Tierernähr]]></source>
<year>1990</year>
<volume>18</volume>
<page-range>91-114</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Tannine in Futtermitteln für Wiederkäuer. 2. Wirkungen auf den Pansenstoffwechsel in vitro]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leinmüller]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Steingass]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Menke]]></surname>
<given-names><![CDATA[KH]]></given-names>
</name>
</person-group>
<source><![CDATA[Übers. Tierernähr]]></source>
<year>1991</year>
<volume>19</volume>
<page-range>45-70</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Makkar]]></surname>
<given-names><![CDATA[HPS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Anti-nutritional factors in foods for livestock]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Gill]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Owen]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Pollot]]></surname>
<given-names><![CDATA[GE]]></given-names>
</name>
<name>
<surname><![CDATA[Lawrence]]></surname>
<given-names><![CDATA[TLJ]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal Production in Developing Countries]]></source>
<year>1993</year>
<page-range>69-85</page-range><publisher-name><![CDATA[British Society of Animal Production]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Gravimetric determination of tannins and their correlations with chemical and protein precipitation methods]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Makkar]]></surname>
<given-names><![CDATA[HPS]]></given-names>
</name>
<name>
<surname><![CDATA[Bluemmel]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Borowy]]></surname>
<given-names><![CDATA[NK]]></given-names>
</name>
<name>
<surname><![CDATA[Becker]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of the Science of Food and Agriculture]]></source>
<year>1993</year>
<volume>61</volume>
<page-range>161-5</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Microbial interaction with tannins: nutritional consequences for ruminants]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[McSweeney]]></surname>
<given-names><![CDATA[CS]]></given-names>
</name>
<name>
<surname><![CDATA[Palmer]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[McNeill]]></surname>
<given-names><![CDATA[DM]]></given-names>
</name>
<name>
<surname><![CDATA[Krause]]></surname>
<given-names><![CDATA[DO]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal Feed Science and Technology]]></source>
<year>2001</year>
<volume>91</volume>
<page-range>83-93</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<collab>Minitab</collab>
<source><![CDATA[v.14 user's guide II: data analysis and quality tools]]></source>
<year>2003</year>
<publisher-loc><![CDATA[USA ]]></publisher-loc>
<publisher-name><![CDATA[Minitab]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Effect of plant extract on in vitro methanogenesis, enzyme activities and fermentation of feed in rumen liquor of buffalo]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Patra]]></surname>
<given-names><![CDATA[AK]]></given-names>
</name>
<name>
<surname><![CDATA[Kamra]]></surname>
<given-names><![CDATA[DN]]></given-names>
</name>
<name>
<surname><![CDATA[Agarwal]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal Feed Science and Technology]]></source>
<year>2006</year>
<volume>128</volume>
<page-range>276-91</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Effects of extracts of spices on rumen methanogenesis, enzyme activities and fermentation of feeds in vitro]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Patra]]></surname>
<given-names><![CDATA[AK]]></given-names>
</name>
<name>
<surname><![CDATA[Kamra]]></surname>
<given-names><![CDATA[DN]]></given-names>
</name>
<name>
<surname><![CDATA[Agarwal]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of the Science of Food and Agriculture]]></source>
<year>2010</year>
<volume>90</volume>
<page-range>511-20</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Influence of storage time and temperature on in vitro digestión of neutral detergent fiber at 48 h, and comparison to 48 h in sacco neutral detergent fiber digestion]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Robinson]]></surname>
<given-names><![CDATA[PH]]></given-names>
</name>
<name>
<surname><![CDATA[Mathews]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
<name>
<surname><![CDATA[Fadel]]></surname>
<given-names><![CDATA[JG]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal Feed Science and Technology]]></source>
<year>1999</year>
<volume>80</volume>
<page-range>257-66</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Effect of plant extracts from several tanniferous browse legumes on in vitro microbial fermentation of the tropical grass Pennisetum purpureum]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Britos]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Romero]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Fondevila]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal Feed Science and Technology]]></source>
<year>2011</year>
<volume>168</volume>
<page-range>188-95</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Naturally occurring food toxicants: phenolic substances of plant origin common in foods]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Singleton]]></surname>
<given-names><![CDATA[VL]]></given-names>
</name>
</person-group>
<source><![CDATA[Advances in Food Research]]></source>
<year>1981</year>
<volume>27</volume>
<page-range>149-242</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Effects of condensed tannins from Leucaena on methane production, rumen fermentation and populations of methanogens and protozoa in vitro]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tan]]></surname>
<given-names><![CDATA[HY]]></given-names>
</name>
<name>
<surname><![CDATA[Sieo]]></surname>
<given-names><![CDATA[CC]]></given-names>
</name>
<name>
<surname><![CDATA[Abdullaha]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Lianga]]></surname>
<given-names><![CDATA[JB]]></given-names>
</name>
<name>
<surname><![CDATA[Huanga]]></surname>
<given-names><![CDATA[XD]]></given-names>
</name>
<name>
<surname><![CDATA[Ho]]></surname>
<given-names><![CDATA[YW]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal Feed Science and Technology]]></source>
<year>2011</year>
<volume>169</volume>
<page-range>185-93</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Methane production from in vitro rumen incubations with Lotus pedunculatus and Medicago sativa, and effects of extractable condensed tannin fractions on methanogenesis]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tavendale]]></surname>
<given-names><![CDATA[MH]]></given-names>
</name>
<name>
<surname><![CDATA[Meagher]]></surname>
<given-names><![CDATA[LP]]></given-names>
</name>
<name>
<surname><![CDATA[Pacheco]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Walker]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Attwood]]></surname>
<given-names><![CDATA[GT]]></given-names>
</name>
<name>
<surname><![CDATA[Sivakumaran]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal Feed Science and Technology]]></source>
<year>2005</year>
<volume>123-124</volume>
<page-range>403-19</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[A simple gas production method using a pressure transducer to determine the fermentation kinetics of ruminant feeds]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Theodorou]]></surname>
<given-names><![CDATA[MK]]></given-names>
</name>
<name>
<surname><![CDATA[Williams]]></surname>
<given-names><![CDATA[BA]]></given-names>
</name>
<name>
<surname><![CDATA[Dhanoa]]></surname>
<given-names><![CDATA[MS]]></given-names>
</name>
<name>
<surname><![CDATA[McAllan]]></surname>
<given-names><![CDATA[AB]]></given-names>
</name>
<name>
<surname><![CDATA[France]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal Feed Science and Technology]]></source>
<year>1994</year>
<volume>48</volume>
<page-range>185-97</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Milk mid-infrared spectra enable prediction of lactation-stage-dependent methane emissions of dairy cattle within routine population-scale milk recording schemes]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vanlierde]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[V]]></surname>
<given-names><![CDATA[Marie-Laure]]></given-names>
</name>
<name>
<surname><![CDATA[Gengler]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Dardenne]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Froidmont]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Soyeurt]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal Production Science]]></source>
<year>2016</year>
<volume>56</volume>
<page-range>258-64</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Yucca schidigera extract decreases in vitro methane production in a variety of forages and diets]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Xu]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Rinkerc]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[McLeoda]]></surname>
<given-names><![CDATA[KR]]></given-names>
</name>
<name>
<surname><![CDATA[Harmon]]></surname>
<given-names><![CDATA[DL]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal Feed Science and Technology]]></source>
<year>2010</year>
<volume>159</volume>
<page-range>18-26</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
