<?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>2007-1124</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias pecuarias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. de cienc. pecuarias]]></abbrev-journal-title>
<issn>2007-1124</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-11242020000200355</article-id>
<article-id pub-id-type="doi">10.22319/rmcp.v11i2.5090</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Inclusión de harina de Tithonia diversifolia en raciones para gallinas ponedoras de primer ciclo y su efecto sobre la pigmentación de yema de huevo]]></article-title>
<article-title xml:lang="en"><![CDATA[Tithonia diversifolia meal in diets for first-cycle laying hens and its effect on egg yolk color]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carranco-Jáuregui]]></surname>
<given-names><![CDATA[María Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrita-Ramírez]]></surname>
<given-names><![CDATA[Vilma]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fuente-Martínez]]></surname>
<given-names><![CDATA[Benjamín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ávila-González]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sanginés-García]]></surname>
<given-names><![CDATA[Leonor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Departamento de Nutrición Animal Dr. Fernando Pérez-Gil Romo ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Medicina Veterinaria y Zootecnia Centro de Enseñanza, Investigación y Extensión en Producción Avícola]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>11</volume>
<numero>2</numero>
<fpage>355</fpage>
<lpage>368</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11242020000200355&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11242020000200355&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11242020000200355&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Una consideración importante para la población mexicana es la pigmentación de la yema de huevo, siendo importante adicionar carotenoides en la dieta de las aves, lo que hace necesario explorar fuentes alternas que aporten pigmentos a los ya utilizados en la industria avícola, por lo que la harina de Tithonia diversifolia puede ser una alternativa viable de carotenoides. El objetivo de esta investigación fue evaluar el efecto de incluir harina de Tithonia diversifolia (HTD) en dietas para gallinas ponedoras sobre variables productivas y color en yema de huevo. Se llevaron a cabo dos ensayos: 1) 3 semanas solo con xantofilas amarillas de HTD y 2) siguientes 3 semanas con HTD + xantofilas rojas. Un total de 240 gallinas se distribuyeron en cinco tratamientos: testigo; 1.77; 5; 10 y 15% de HTD. Se midieron: porcentaje postura, peso huevo, consumo alimento, conversión alimentaria y masa de huevo. Al finalizar cada ensayo se tomaron 20 huevos/tratamiento midiendo el color de yema con abanico DSM, colorimetría de reflectancia y cuantificación de xantofilas (HPLC). Se utilizó un diseño completamente al azar y las diferencias entre medias por prueba de Tukey. El peso de huevo y la conversión alimenticia no mostraron diferencias entre tratamientos (P&gt;0,05). Porcentaje de postura y masa de huevo (10 y 15% HTD) y consumo de alimento (15% HTD) fueron menores al testigo (P&lt;0,05). El color de yema fue más intenso para 10 y 15 % de HTD. Se concluye que HTD puede ser alternativa como pigmento amarillo hasta un 10 % de inclusión sin afectar variables productivas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Consumers in Mexico expect egg yolks to have a certain color. Attaining this color in intensive production systems requires addition of natural pigments to laying hen diets. Feed is the largest input cost in egg production and added pigments increase costs. Use of alternative natural pigment sources, such as tree marigold Tithonia diversifolia, can help to control costs. An evaluation was done of how addition of T. diversifolia meal (TDM), as a yellow pigment source, to diets for first-cycle laying hens affected productive variables and egg yolk color. Over a six-week experimental period meal made from T. diversifolia leaves and petioles was added to poultry diets at four percentages (1.77, 5, 10 and 15 %). A total of 240 chickens were distributed in five treatments (Control, and 1.77 %, 5 %, 1 0% and 15 % TDM) tested in two trials: Trial 1 (weeks 1-3), no red pigment added; Trial 2 (weeks 4-6), red pigment added. Measured variables were laying percentage, egg weight and mass, and feed intake and conversion. At the end of each trial, 20 eggs/treatment were collected for quantification of xanthophylls by HPLC, and measurement of yolk color based on DSM fan colors and reflectance colorimetry. The design was completely random and differences between means were identified with a Tukey test. Egg weight and feed conversion did not differ between treatments (P&gt;0.05). Laying percentage and egg mass in the 10 and 15% TDM treatments, and feed intake in the 15% TDM treatment were lower than in the Control (P&lt;0.05). Yolk color was most intense in the 10 and 15% TDM treatments in both trials. Tithonia diversifolia meal is a promising alternative natural source of yellow pigment in laying hen diets at up to a 10% inclusion level, and does not affect productive variables.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Tithonia diversifolia]]></kwd>
<kwd lng="es"><![CDATA[Gallinas ponedoras]]></kwd>
<kwd lng="es"><![CDATA[Huevo]]></kwd>
<kwd lng="es"><![CDATA[Variables productivas]]></kwd>
<kwd lng="es"><![CDATA[Pigmento]]></kwd>
<kwd lng="en"><![CDATA[Tithonia diversifolia]]></kwd>
<kwd lng="en"><![CDATA[Laying hens]]></kwd>
<kwd lng="en"><![CDATA[Eggs]]></kwd>
<kwd lng="en"><![CDATA[Productive variables]]></kwd>
<kwd lng="en"><![CDATA[Pigment]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="book">
<collab>UNA</collab>
<source><![CDATA[Unión Nacional de Avicultores: Compendio de Indicadores Económicos del Sector Avícola]]></source>
<year>2018</year>
<publisher-name><![CDATA[Dirección de Estudios Económicos]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[PM]]></given-names>
</name>
<name>
<surname><![CDATA[Cortés]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Ávila]]></surname>
<given-names><![CDATA[GE.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de tres niveles de pigmento de flor de cempasúchil (Tagetes erecta) sobre la pigmentación de la piel en pollos de engorda]]></article-title>
<source><![CDATA[Téc Pecu Méx]]></source>
<year>2004</year>
<volume>42</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>105-11</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cuca]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
<name>
<surname><![CDATA[Ávila]]></surname>
<given-names><![CDATA[GE]]></given-names>
</name>
<name>
<surname><![CDATA[Pro]]></surname>
<given-names><![CDATA[MA.]]></given-names>
</name>
</person-group>
<source><![CDATA[Alimentación de las aves]]></source>
<year>2009</year>
<publisher-loc><![CDATA[Texcoco, México ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Autónoma de Chapingo]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="">
<collab>CONABIO. Comisión Nacional para el Conocimiento y uso de la Biodiversidad</collab>
<source><![CDATA[Catalogo taxonómico de especies en México]]></source>
<year>2010</year>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Olabode]]></surname>
<given-names><![CDATA[OS]]></given-names>
</name>
<name>
<surname><![CDATA[Ogunyemi]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Akanbi]]></surname>
<given-names><![CDATA[WB]]></given-names>
</name>
<name>
<surname><![CDATA[Adesina]]></surname>
<given-names><![CDATA[GO]]></given-names>
</name>
<name>
<surname><![CDATA[Babajide]]></surname>
<given-names><![CDATA[PA.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of Tithonia diversifolia (Hemsl.) Gray for soil improvement]]></article-title>
<source><![CDATA[World J Agr Sci]]></source>
<year>2007</year>
<volume>3</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>503-7</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murgueitio]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Rosales]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[ME.]]></given-names>
</name>
</person-group>
<source><![CDATA[Experiencias sobre la utilización de la Tithonia diversifolia (Hemsl.) A. Grayen Colombia y Panamá]]></source>
<year>2009</year>
<conf-name><![CDATA[ VIIITaller Internacional Silvopastoril &#8220;Los árboles y arbustos en la ganadería&#8221;]]></conf-name>
<conf-loc>Cuba </conf-loc>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosales]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[In vitro assessment of the nutritive value of mixtures of leaves from tropical fodder trees]]></source>
<year>1996</year>
<publisher-loc><![CDATA[Oxford, UK ]]></publisher-loc>
<publisher-name><![CDATA[Oxford University]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Odunsi]]></surname>
<given-names><![CDATA[AA]]></given-names>
</name>
<name>
<surname><![CDATA[Farinu]]></surname>
<given-names><![CDATA[GO]]></given-names>
</name>
<name>
<surname><![CDATA[Akinola]]></surname>
<given-names><![CDATA[JO]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of dietary wild sunflower (Tithonia diversifolia) leaf meal on layers&#8217; performance and egg quality]]></article-title>
<source><![CDATA[Niger J Anim Prod]]></source>
<year>1998</year>
<volume>23</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>28-32</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="">
<collab>INEGI</collab>
<source><![CDATA[Instituto Nacional de Estadística y Geografía]]></source>
<year>2018</year>
</nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="book">
<collab>USP</collab>
<source><![CDATA[The United State Pharmacopeia]]></source>
<year>2012</year>
<publisher-loc><![CDATA[USA ]]></publisher-loc>
<publisher-name><![CDATA[United States Pharmacopeia Convention Inc]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="book">
<source><![CDATA[NOM. Norma Oficial Mexicana 062-ZOO. Especificaciones técnicas para la producción, cuidado y uso de los animales de laboratorio]]></source>
<year>1999</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Secretaría de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentación]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kuehl]]></surname>
<given-names><![CDATA[RO]]></given-names>
</name>
</person-group>
<source><![CDATA[Diseño de experimentos. Principios estadísticos de diseño y análisis de investigación]]></source>
<year>2001</year>
<edition>2ª</edition>
<publisher-loc><![CDATA[USA ]]></publisher-loc>
<publisher-name><![CDATA[Thomson Editores, SA. de CV]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sarria]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Forrajes arbóreos en la alimentación de monogástricos]]></source>
<year>2000</year>
<conf-name><![CDATA[ Agroforestería para la Producción Animal en América Latina]]></conf-name>
<conf-loc>Medellín </conf-loc>
</nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lezcano]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Soca]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ojeda]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Roque]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Fontes]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Santana]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Cubillas]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caracterización bromatológica de Tithonia diversifolia (Hemsl.) A. Gray en dos etapas de su ciclo fisiológico]]></article-title>
<source><![CDATA[Pastos y Forrajes]]></source>
<year>2012</year>
<volume>35</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>275-82</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Savón]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Vázquez]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Ruíz]]></surname>
<given-names><![CDATA[TE]]></given-names>
</name>
<name>
<surname><![CDATA[Herrera]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de la harina de forraje de Tithonia diversifolia para la alimentación de gallinas ponedoras]]></article-title>
<source><![CDATA[Livestock Res Rural Develop]]></source>
<year>2019</year>
</nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yalçin]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Özsoy]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Erol]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Yeast culture supplementation to laying hen diets containing Soybean meal or Sunflower seed meal and its effect on performance, egg quality traits and blood chemistry]]></article-title>
<source><![CDATA[J Appl Poultry Res]]></source>
<year>2008</year>
<volume>15</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>229-36</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cuca]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Pino]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Mendoza]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El uso de pigmentos en la alimentación de las aves]]></article-title>
<source><![CDATA[Tec Pecu Méx]]></source>
<year>1963</year>
<volume>2</volume>
<page-range>39-42</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
