<?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>0120-2812</journal-id>
<journal-title><![CDATA[Acta Agronómica]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Agron.]]></abbrev-journal-title>
<issn>0120-2812</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-28122021000200148</article-id>
<article-id pub-id-type="doi">10.15446/acag.v70n2.79654</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Predicted milk production per hectare based on yield and chemical composition of native and hybrid maize silage varieties on temperate and tropical regions]]></article-title>
<article-title xml:lang="es"><![CDATA[Predicción por hectárea de la producción de leche en función del rendimiento y la composición química de las variedades de ensilaje del maíz nativo e híbrido en regiones templadas y tropicales]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Robles Jiménez]]></surname>
<given-names><![CDATA[Lizbeth Esmeralda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</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[Rosas Davila]]></surname>
<given-names><![CDATA[Melchor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Osorio Avalos]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palacios Riocerezo]]></surname>
<given-names><![CDATA[Carlos]]></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 contrib-type="author">
<name>
<surname><![CDATA[Chay-Canul]]></surname>
<given-names><![CDATA[Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas-Bello-Pérez]]></surname>
<given-names><![CDATA[Einar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Plata Reyes]]></surname>
<given-names><![CDATA[Dalia A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Salamanca  ]]></institution>
<addr-line><![CDATA[Salamanca Castilla y León]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,University of Copenhagen  ]]></institution>
<addr-line><![CDATA[Copenhagen ]]></addr-line>
<country>Denmark</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>70</volume>
<numero>2</numero>
<fpage>148</fpage>
<lpage>154</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-28122021000200148&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-28122021000200148&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-28122021000200148&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective of the present study was to characterize maize silage according to chemical composition, maize silage yield, as well as their predicted milk production. A search was made on studies related to maize silage yield, density, chemical composition (DM, CP, NDF, starch), and dry matter digestibility (DMD). In this study, 41 maize varieties from temperate regions and 101 maize varieties from tropical origin were analyzed. The net energy of lactation (NEL Mcal/kg DM), kilograms of milk per t of silage (kg of milk/t DM), and kilograms of milk per hectare of silage (kg of milk/ha) were determined. A cluster (CL) analysis was performed, and six CL of maize silage were obtained. The CL1 included digestibility for dry matter, crude protein, neutral detergent fiber, NEL, and kg of milk/t DM. CL2 was characterized by maize silage with the highest number of plants per hectare and NDF. CL3 included the highest ash content. CL4 consisted of intermediate values for all variables. CL5 included the highest forage yield (t DM/ha) and kg of milk/ ha whereas CL6 included the highest kg of milk/t. Overall, CL1 resulted in the highest DMD and NEL, producing more milk per t DM. Results suggested that the ideal option is maize silage with a higher forage yield and more than 35 % DM (CL5) since this produces more kg of milk per hectare.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo del presente estudio fue caracterizar el ensilaje de maíz acorde a su composición química, a su rendimiento, así como a su producción de leche prevista. Se realizó una búsqueda en estudios relacionados al rendimiento del ensilado de maíz, a la densidad, a la composición química (MS, PB, FDN, almidón) y a la digestibilidad de materia seca (DMS). En este estudio fueron analizadas 41 variedades de maíz de regiones templadas y 101 variedades de maíz de origen tropical. Se determinaron la energía neta de lactancia (ENL Mcal/kg MS), los kilogramos de leche por t de ensilaje (kg de leche/t MS), y los kilogramos de leche por hectárea de ensilaje (kg de leche/ha). Se llevó a cabo un análisis cluster a partir del cual fueron obtenidos seis CL del ensilaje de maíz. El CL1 incluyó digestibilidad de materia seca, proteína bruta, fibra detergente neutro, ENL y kg de leche/t MS. El CL2 se caracterizó por ser el ensilaje de maíz con el mayor número de plantas por hectárea y FDN. El CL3 incluyó el mayor contenido de ceniza. El CL4 se compuso de valores intermedios en todas las variables. El CL5 incluyó el mayor rendimiento de forraje (t MS/ha) y kg de leche/ha, mientras que el CL6 incluyó el mayor kg de leche/t. En general, el CL1 fue el que presentó el mayor valor de DMS y ENL, produciendo como resultado más leche por t MS. Los resultados sugirieron que la opción ideal es el ensilaje de maíz con mayor rendimiento de forraje y más del 35 % MS (CL5), puesto que produjo más kg de leche por hectárea.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[production systems]]></kwd>
<kwd lng="en"><![CDATA[dairy]]></kwd>
<kwd lng="en"><![CDATA[cows]]></kwd>
<kwd lng="en"><![CDATA[starch]]></kwd>
<kwd lng="en"><![CDATA[fiber]]></kwd>
<kwd lng="en"><![CDATA[conserved forage]]></kwd>
<kwd lng="es"><![CDATA[sistemas de producción]]></kwd>
<kwd lng="es"><![CDATA[lácteos]]></kwd>
<kwd lng="es"><![CDATA[vacas]]></kwd>
<kwd lng="es"><![CDATA[almidón]]></kwd>
<kwd lng="es"><![CDATA[fibra]]></kwd>
<kwd lng="es"><![CDATA[forraje conservado]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="">
<collab>Brio Agropecuario</collab>
<source><![CDATA[México es el segundo importador mundial de leche en polvo]]></source>
<year>2017</year>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Celis Álvarez]]></surname>
<given-names><![CDATA[M.D.]]></given-names>
</name>
<name>
<surname><![CDATA[López González]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez García]]></surname>
<given-names><![CDATA[C.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Estrada Flores]]></surname>
<given-names><![CDATA[J.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Arriaga Jordán]]></surname>
<given-names><![CDATA[C.M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Oat and ryegrass silage for small-scale dairy systems in the highlands of central Mexico]]></article-title>
<source><![CDATA[Tropical Animal Health Production]]></source>
<year>2016</year>
<volume>48</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1129-34</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Darby]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Lauer]]></surname>
<given-names><![CDATA[J.G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Harvest date and hybrid influence on corn forage yield, quality, and preservation]]></article-title>
<source><![CDATA[Agronomy Journal]]></source>
<year>2002</year>
<volume>94</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>559-66</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elizondo Salazar]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Boschini Figueroa]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Forage production with native and hybrid corn (Zea mays)]]></article-title>
<source><![CDATA[Agronomía Mesoamericana]]></source>
<year>2002</year>
<volume>13</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>13-7</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Espinoza Ortega]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Espinosa Ayala]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Bastida López]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Castañeda Martínez]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Arriaga Jordán]]></surname>
<given-names><![CDATA[C.M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Small-scale dairy farming in the highlands of central Mexico: technical, economic and social aspects and their impact on poverty]]></article-title>
<source><![CDATA[Experimental Agriculture]]></source>
<year>2007</year>
<volume>43</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>241-56</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferraretto]]></surname>
<given-names><![CDATA[L.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Shaver]]></surname>
<given-names><![CDATA[R.D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of whole-plant corn silage hybrid type on intake, digestion, ruminal fermentation, lactation performance by dairy cows through a meta- analysis]]></article-title>
<source><![CDATA[Journal of Dairy Science]]></source>
<year>2015</year>
<volume>98</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>2662-75</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Filya]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nutritive value and aerobic stability of whole crop maize silage harvested at four stages of maturity]]></article-title>
<source><![CDATA[Animal Feed Science and Technology]]></source>
<year>2004</year>
<volume>116</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>141-50</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<collab>Food and Agriculture Organization of the United Nations (FAO)</collab>
<source><![CDATA[Towards a concept of Sustainable Animal Diets. Report based on the collated results of a survey of stakeholder views]]></source>
<year>2014</year>
<numero>No.7</numero>
<issue>No.7</issue>
<publisher-name><![CDATA[P.S. FAO Animal Production and Health]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gallo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Moschini]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Cerioli]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Masoero]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Use of principal component analysis to classify forages and predict their calculated energy content]]></article-title>
<source><![CDATA[Animal]]></source>
<year>2013</year>
<volume>7</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>930-9</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez Leyva]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Romo Rubio]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Flores Aguirre]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortiz López]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Barajas Cruz]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Edad de corte en la composición química del ensilado de maíz blanco asgrow-7573]]></article-title>
<source><![CDATA[Abanico Veterinario]]></source>
<year>2016</year>
<volume>6</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>13-23</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[N.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Yu]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Ali]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Cone]]></surname>
<given-names><![CDATA[J.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Hendriks]]></surname>
<given-names><![CDATA[W.H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nutritive value of maize silage in relation to dairy cow performance and milk quality]]></article-title>
<source><![CDATA[Journal of the Science of Food and Agriculture]]></source>
<year>2015</year>
<volume>95</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>238-52</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Komainda]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Taube]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Klub]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Herrmann]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Above and belowground nitrogen uptake of winter catch crops sown after silage maize as affected by sowing date]]></article-title>
<source><![CDATA[European Journal of Agronomy]]></source>
<year>2016</year>
<volume>79</volume>
<page-range>31-42</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kung]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Shaver]]></surname>
<given-names><![CDATA[R.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Grant]]></surname>
<given-names><![CDATA[R.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Schmidt]]></surname>
<given-names><![CDATA[R.J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Silage review: Interpretation of chemical, microbial, and organoleptic components of silages]]></article-title>
<source><![CDATA[Journal of Dairy Science]]></source>
<year>2018</year>
<volume>101</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>4020-33</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lascano]]></surname>
<given-names><![CDATA[G.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Alende]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Koch]]></surname>
<given-names><![CDATA[L.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Jenkins]]></surname>
<given-names><![CDATA[T.C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Changes in fermentation and biohydrogenation intermediates in continuous cultures fed low and high levels of fat with increasing rates of starch degradability]]></article-title>
<source><![CDATA[Journal of Dairy Science]]></source>
<year>2016</year>
<volume>99</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>6334-41</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lynch]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
<name>
<surname><![CDATA[O'Kelly]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Doyle]]></surname>
<given-names><![CDATA[E.M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Yield, quality and ensilage characteristics of whole-crop maize and of the cob and stover components: harvest date and hybrid effects]]></article-title>
<source><![CDATA[Grass and Forage Science]]></source>
<year>2012</year>
<volume>67</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>472-87</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Marchesini]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Serva]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Chinello]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gazziero]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Tenti]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Mirisola]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Garbin]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Contiero]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Grandis]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Andrighetto]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of maturity stage at harvest on the ensilability of maize hybrids in the early and late FAO classes, grown in areas differing in yield potential]]></article-title>
<source><![CDATA[Grass and Forage Science]]></source>
<year>2019</year>
<volume>74</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>415-26</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="book">
<collab>National Research Council (NRC)</collab>
<source><![CDATA[Nutrient requirements of dairy cattle]]></source>
<year>2001</year>
<edition>7th revised edition</edition>
<publisher-name><![CDATA[National Academy Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Núñez Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Faz Contreras]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Tovas Gómez]]></surname>
<given-names><![CDATA[M.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Zavala Gómez]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Híbridos de maíz para la producción de forraje con alta digestibilidad en el norte de México]]></article-title>
<source><![CDATA[Técnica Pecuaria en México]]></source>
<year>2001</year>
<volume>39</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>77-88</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Núñez Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Contreras]]></surname>
<given-names><![CDATA[G.E.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Faz Contreras]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Características agronómicas y químicas importantes en híbridos de maíz forrajero con alto valor energético]]></article-title>
<source><![CDATA[Técnica Pecuaria en México]]></source>
<year>2003</year>
<volume>41</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>37-48</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Posadas-Domínguez]]></surname>
<given-names><![CDATA[R. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Callejas-Juárez]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Arriaga-Jordán]]></surname>
<given-names><![CDATA[C. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Castañeda]]></surname>
<given-names><![CDATA[F.E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Economic and financial viability of small scale dairy systems in central Mexico: economic scenario 2010-2018]]></article-title>
<source><![CDATA[Tropical Animal Health and Production]]></source>
<year>2016</year>
<volume>48</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1667-71</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reta Sánchez]]></surname>
<given-names><![CDATA[D.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Figueroa Viramontes]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Serrato Corona]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Quiroga Garza]]></surname>
<given-names><![CDATA[H.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gaytán Mascorro]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Cueto Wong]]></surname>
<given-names><![CDATA[J.A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Potencial forrajero y productividad del agua en patrones de cultivos alternativos]]></article-title>
<source><![CDATA[Revista Mexicana de Ciencias Pecuarias]]></source>
<year>2015</year>
<volume>6</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>153-70</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Beltrán]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Salvador]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Rubio]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Grado]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Valor nutritivo y rendimiento forrajero de híbridos de maíz para ensilaje]]></article-title>
<source><![CDATA[Revista Cubana de Ciencia Agrícola]]></source>
<year>2006</year>
<volume>40</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>91-6</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="">
<collab>Secretaría de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentación (SAGARPA)</collab>
<source><![CDATA[Escenario base 09-18. Proyecciones para el sector agropecuario de México]]></source>
<year>2016</year>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="">
<collab>Secretaría de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentación (SAGARPA)</collab>
<collab>Servicio de Información Agroalimentaria y Pesquera (SIAP)</collab>
<source><![CDATA[Panorama de la leche en México]]></source>
<year>2017</year>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="">
<collab>SEMARNAT</collab>
<source><![CDATA[Plan nacional de desarrollo 2013-2018. Programa Especial de Cambio Climático 2014-2018 (PECC)]]></source>
<year>2014</year>
</nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="">
<collab>Servicio de Información Agroalimentaria y Pesquera (SIAP)</collab>
<source><![CDATA[Producción agrícola]]></source>
<year>2020</year>
</nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shaver]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<source><![CDATA[Corn silage evaluation: MILK 2000 challenges and opportunities with MILK 2006]]></source>
<year>2006</year>
</nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Spanghero]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Zanfi]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Rapetti]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Colombini]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of NDF degradability of corn silage on the milk yield potential of dairy cows]]></article-title>
<source><![CDATA[Italian Journal of Animal Science]]></source>
<year>2009</year>
<volume>8</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>211-20</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="">
<collab>Statistical Analysis System Institute (SAS)</collab>
<source><![CDATA[Analytics Software &amp; Solutions]]></source>
<year>2021</year>
<publisher-loc><![CDATA[Cary, North Carolina, U.S.A ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Steel]]></surname>
<given-names><![CDATA[R.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Torrie]]></surname>
<given-names><![CDATA[J.H]]></given-names>
</name>
</person-group>
<source><![CDATA[Principles and procedures of statistics a biomedical approach]]></source>
<year>1997</year>
<edition>2nd ed</edition>
<publisher-name><![CDATA[Mc Graw Hill Book Co]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
