<?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>0120-0690</journal-id>
<journal-title><![CDATA[Revista Colombiana de Ciencias Pecuarias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Colom Cienc Pecua]]></abbrev-journal-title>
<issn>0120-0690</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ciencias Agrarias, Universidad de Antioquia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-06902023000300121</article-id>
<article-id pub-id-type="doi">10.17533/udea.rccp.v36n3a1</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Effects of phytase supplementation to reduced-nutrient diets on performance, egg quality, and economic parameters in commercial layers]]></article-title>
<article-title xml:lang="es"><![CDATA[Efectos de la suplementación con fitasa en dietas bajas en nutrientes sobre el rendimiento, la calidad del huevo y los parámetros económicos en ponedoras comerciales]]></article-title>
<article-title xml:lang="pt"><![CDATA[Efeitos da suplementação de fitasse em dietas com nutrientes reduzidos sobre o desempenho, qualidade do ovo e parâmetros econômicos em poedeiras comerciais]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Roque]]></surname>
<given-names><![CDATA[Fabricia A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zorzetto]]></surname>
<given-names><![CDATA[Priscila S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leite]]></surname>
<given-names><![CDATA[Brunna G. S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Granghelli]]></surname>
<given-names><![CDATA[Carlos A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gonçalves]]></surname>
<given-names><![CDATA[Jane C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[C. R.Garcia]]></surname>
<given-names><![CDATA[Nury A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Wen]]></surname>
<given-names><![CDATA[Nick]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moraes]]></surname>
<given-names><![CDATA[Ulisses R. T.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Araújo]]></surname>
<given-names><![CDATA[Cristiane S. S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Araújo]]></surname>
<given-names><![CDATA[Lúcio F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade de São Paulo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade de São Paulo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidade de São Paulo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidade de São Paulo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Vetline feed (VLN)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Orion Nutrição Animal  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,Guangdong VTR Bio-Tech Co  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>China</country>
</aff>
<aff id="Af8">
<institution><![CDATA[,Btech-Pancosma  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af9">
<institution><![CDATA[,Universidade de São Paulo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="A10">
<institution><![CDATA[,Universidade de São Paulo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>07</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>07</month>
<year>2023</year>
</pub-date>
<volume>36</volume>
<numero>3</numero>
<fpage>121</fpage>
<lpage>130</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-06902023000300121&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-06902023000300121&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-06902023000300121&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Exogenous enzyme supplementation is an effective and cost-saving mechanism for increasing the availability of dietary nutrients by increasing digestion and reducing excretion.  Objective:  To evaluate the effects of phytase supplementation on performance, egg quality, and economic parameters in commercial laying hens fed reduced-nutrient diets from 70 weeks of age.  Methods:  Novogen White® commercial laying hens (n=256) were randomly allocated to four treatment groups, with eight replicates of eight hens in each group: PC (positive control): conventional diet not supplemented with phytase; diet with reduced levels (RN) of P (-0.12%), Ca (-0.10%), and ME (-14 kcal/kg), and supplemented with 300 phytase units (FTU/kg; RN300FTU); diet with reduced levels of P (-0.16%), Ca (-0.13%), ME (-18 kcal/kg), CP (-8%), synthetic amino acids (-0.01%), and supplemented with 600 FTU phytase/kg (RN600FTU); and diet with reduced levels of P (-0.18% P), Ca (-0.15%), ME (-20 kcal/kg), CP (-20%), synthetic amino acids (-0.01%), and supplemented with 900 FTU phytase/kg (RN900FTU).  Results:  The layers fed the RN300FTU diet had 2.68% higher egg production than those fed the PC diet. Egg mass produced by PC- and RN300FTU-fed hens was statistically similar. Eggshell thickness was increased in PC-fed hens. Feed cost for the RN900FTU diet was approximately 9% lower compared with that of the PC diet.  Conclusion: The best performance and economic results were achieved when layers were fed a reduced-nutrient diet supplemented with 300 FTU phytase.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: La suplementación con enzimas exógenas es un mecanismo eficaz y económico para aumentar la disponibilidad de nutrientes dietéticos al aumentar la digestión y reducir la excreción.  Objetivo:  Evaluar los efectos de una dieta con reducción de nutrientes y suplementada con niveles incrementales de fitasa en ponedoras a partir de las 70 semanas de edad sobre su desempeño, calidad del huevo y parámetros económicos.  Métodos:  Un total de 256 ponedoras Novogen White® se asignaron al azar a cuatro grupos de tratamiento, con ocho réplicas de ocho gallinas en cada unidad experimental: Control positivo (PC) dieta convencional sin fitasa; dieta con niveles reducidos (RN) de P (-0,12%), Ca (-0,10%) y ME (-14 kcal/kg) y suplementada con fitasa (300 FTU/kg: NR300FTU); dieta con NR de P (-0,16%), Ca (-0,13%), ME (-18 kcal/kg), PB (-18%), aminoácidos sintéticos (-0,01%) y suplementada con fitasa (600 FTU/kg: NR600FTU); y dieta con RN de P (-0,18%), Ca (-0,15%), ME (-20 kcal/kg), PB (-20%), aminoácidos sintéticos (-0,01%) y suplementada con fitasa (900 FTU/kg: RN900FTU).  Resultados: Las ponedoras alimentadas con RN300FTU presentaron una producción de huevos 2,68% mayor al PC. La masa de huevos producida por gallinas alimentadas con PC y RN300FTU fue estadísticamente semejante. El grosor de cáscara del huevo fue mayor para las gallinas alimentadas con dieta basal. El costo de alimentación de la dieta RN900FTU fue aproximadamente 9% menor que la dieta basal.  Conclusión:  Las ponedoras alimentadas con la dieta RN300FTU presentaron los mejores resultados económicos y zootécnicos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Antecedentes:  A suplementação de enzimas exógenas é um mecanismo eficaz e econômico para aumentar a disponibilidade de nutrientes da dieta, aumentando a digestão e reduzindo a excreção.  Objetivo: Avaliar os efeitos das dietas com redução de nutrientes suplementadas com fitasse a galinhas poedeiras comerciais a partir das 70 semanas de idade sobre desempenho, qualidade dos ovos e parâmetros econômicos.  Métodos:  Um total de256 poedeiras Novogen White® foram distribuídas aleatoriamente a quatro grupos de tratamento, com oito repetições de oito galinhas em cada unidade experimental: PC (controle positivo): dieta convencional, sem fitasse; dieta com níveis reduzidos (RN) de P (-0,12%), Ca (-0,10%) e ME (-14 kcal/kg) e suplementada com fitasse de 300 FTU/kg (RN300FTU); dieta com níveis reduzidos de P (-0,16%), Ca (-0,13%), ME (-18 kcal/kg), PB (-18%), aminoácidos sintéticos (-0,01%) e suplementados com 600 Fitasse de FTU / kg (RN600FTU); e dieta com níveis reduzidos de P (-0,18% P), Ca (-0,15%), ME (-20 kcal / kg), PB (-20%), aminoácidos sintéticos (-0,01%) e suplementados com fitasse de 900 FTU/kg (RN900FTU).  Resultados:  As poedeiras alimentadas com NR300FTU apresentaram produção de ovos 2,68% maior do que as com a dieta PC. A massa de ovos produzida por galinhas alimentadas com PC e RN300FTU foi estatisticamente semelhante. A espessura da casca dos ovos foi melhor para galinhas alimentadas com PC. O custo de alimentação da dieta RN900FTU foi aproximadamente 9% menor em comparação com o da dieta de PC.  Conclusão:  Este estudo mostrou que as poedeiras alimentadas com dieta RN300FTU apresentaram os melhores resultados econômicos e zootécnico.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[antinutritional factors]]></kwd>
<kwd lng="en"><![CDATA[calcium]]></kwd>
<kwd lng="en"><![CDATA[egg mass]]></kwd>
<kwd lng="en"><![CDATA[egg production]]></kwd>
<kwd lng="en"><![CDATA[egg quality]]></kwd>
<kwd lng="en"><![CDATA[enzyme]]></kwd>
<kwd lng="en"><![CDATA[feed cost]]></kwd>
<kwd lng="en"><![CDATA[laying hens]]></kwd>
<kwd lng="en"><![CDATA[layers]]></kwd>
<kwd lng="en"><![CDATA[phosphorus]]></kwd>
<kwd lng="en"><![CDATA[phytase]]></kwd>
<kwd lng="en"><![CDATA[reduced-nutrient diets]]></kwd>
<kwd lng="es"><![CDATA[calcio]]></kwd>
<kwd lng="es"><![CDATA[calidad de huevos]]></kwd>
<kwd lng="es"><![CDATA[costo de alimentación]]></kwd>
<kwd lng="es"><![CDATA[dietas con reducción de nutrientes]]></kwd>
<kwd lng="es"><![CDATA[enzima]]></kwd>
<kwd lng="es"><![CDATA[factores anti-nutricionales]]></kwd>
<kwd lng="es"><![CDATA[fitasa]]></kwd>
<kwd lng="es"><![CDATA[fósforo]]></kwd>
<kwd lng="es"><![CDATA[gallinas]]></kwd>
<kwd lng="es"><![CDATA[masa de huevo]]></kwd>
<kwd lng="es"><![CDATA[ponedoras]]></kwd>
<kwd lng="es"><![CDATA[producción de huevos]]></kwd>
<kwd lng="pt"><![CDATA[cálcio]]></kwd>
<kwd lng="pt"><![CDATA[custo de alimentação]]></kwd>
<kwd lng="pt"><![CDATA[dietas com redução de nutrientes]]></kwd>
<kwd lng="pt"><![CDATA[enzima]]></kwd>
<kwd lng="pt"><![CDATA[fatores antinutricionais]]></kwd>
<kwd lng="pt"><![CDATA[fitasse]]></kwd>
<kwd lng="pt"><![CDATA[fósforo]]></kwd>
<kwd lng="pt"><![CDATA[galinhas]]></kwd>
<kwd lng="pt"><![CDATA[massa de ovo]]></kwd>
<kwd lng="pt"><![CDATA[poedeiras comerciais]]></kwd>
<kwd lng="pt"><![CDATA[produção de ovos]]></kwd>
<kwd lng="pt"><![CDATA[qualidade de ovo]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ahmadi]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Rodehutscord]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Erratum: A meta-analysis of responses to dietary nonphytate phosphorus and phytase in laying hens]]></article-title>
<source><![CDATA[Poult Sci]]></source>
<year>2012</year>
<volume>91</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>2412</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Borrmann]]></surname>
<given-names><![CDATA[MSL.]]></given-names>
</name>
</person-group>
<source><![CDATA[Efeitos da adição de fitase com diferentes níveis de fósforo disponível em rações de poedeiras de segundo ciclo]]></source>
<year>1999</year>
<publisher-name><![CDATA[Dissertação de Mestrado - Milene Severo Lins Borrmann]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Costa]]></surname>
<given-names><![CDATA[FGP]]></given-names>
</name>
<name>
<surname><![CDATA[Jácome]]></surname>
<given-names><![CDATA[IMTD]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[JHVDa]]></given-names>
</name>
<name>
<surname><![CDATA[Araújo]]></surname>
<given-names><![CDATA[MJDe]]></given-names>
</name>
<name>
<surname><![CDATA[Campos]]></surname>
<given-names><![CDATA[KMFDe]]></given-names>
</name>
<name>
<surname><![CDATA[Barbosa]]></surname>
<given-names><![CDATA[JG]]></given-names>
</name>
<name>
<surname><![CDATA[Clementino]]></surname>
<given-names><![CDATA[RH.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Níveis de fósforo disponível e de fitase na dieta de poedeiras de ovos de casca marrom]]></article-title>
<source><![CDATA[Cienc Anim Bras]]></source>
<year>2004</year>
<volume>5</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>73-81</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Englmaierová]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Sk&#345;ivan]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Sk&#345;ivanová]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Bubancová]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[&#268;ermák]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Vl&#269;ková]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of a low-phosphorus diet and exogenous phytase on performance, egg quality, and bacterial colonisation and digestibility of minerals in the digestive tract of laying hens.]]></article-title>
<source><![CDATA[Original Paper Czech J Anim Sci]]></source>
<year>2015</year>
<volume>60</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>2015-542</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[CB]]></given-names>
</name>
<name>
<surname><![CDATA[Geraldo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Vieira Filho]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Brito]]></surname>
<given-names><![CDATA[JAG]]></given-names>
</name>
<name>
<surname><![CDATA[Bertechini]]></surname>
<given-names><![CDATA[AG]]></given-names>
</name>
<name>
<surname><![CDATA[Pinheiro]]></surname>
<given-names><![CDATA[SRF.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Associação de carboidrases e fitase em dietas valorizadas e seus efeitos sobre desempenho e qualidade dos ovos de poedeiras leves]]></article-title>
<source><![CDATA[Arq Bras Med Vet]]></source>
<year>2015</year>
<volume>67</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>249-54</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fukayama]]></surname>
<given-names><![CDATA[EH]]></given-names>
</name>
<name>
<surname><![CDATA[Sakomura]]></surname>
<given-names><![CDATA[NK]]></given-names>
</name>
<name>
<surname><![CDATA[Rocha]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Dourado]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Batista]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Fernandes]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Marcato]]></surname>
<given-names><![CDATA[SM.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efeito da suplementação de fitase sobre o desempenho e a digestibilidade dos nutrientes em frangos de corte Effect of phytase suplementation on performance and nutrient digestibility in diets of broilers Material e Métodos]]></article-title>
<source><![CDATA[Rev Bras Zootec]]></source>
<year>2008</year>
<volume>37</volume>
<page-range>629-35</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gameiro]]></surname>
<given-names><![CDATA[AH.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Análise Econômica Aplicada à Zootecnia: Avanços e Desafios]]></article-title>
<source><![CDATA[Novos desafios da pesquisa em nutrição e produção animal]]></source>
<year>2009</year>
<publisher-name><![CDATA[Pirassununga:5D]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="">
<collab>Novogen</collab>
<source><![CDATA[Guia Novo Gen White]]></source>
<year>2015</year>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Plumstead]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A fitase ajuda reduzir custo com alta de preço do fósforo]]></article-title>
<source><![CDATA[Avicultura Industrial]]></source>
<year>2008</year>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rostagno]]></surname>
<given-names><![CDATA[HS.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Tabelas brasileiras para aves e suínos: composição de alimentos e exigências nutricionais]]></article-title>
<source><![CDATA[Tabelas brasileiras para aves e suínos: composição de alimentos e exigências nutricionais]]></source>
<year>2011</year>
<numero>252</numero>
<issue>252</issue>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Selle]]></surname>
<given-names><![CDATA[PH]]></given-names>
</name>
<name>
<surname><![CDATA[Ravindran]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Stodolak]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Wikiera]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Koreleski]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Swiatkiewicz]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Gray]]></surname>
<given-names><![CDATA[KA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Microbial phytase in poultry nutrition]]></article-title>
<source><![CDATA[Anim Feed Sci Technol]]></source>
<year>2007</year>
<numero>135</numero>
<issue>135</issue>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
<name>
<surname><![CDATA[Geraldo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Filho]]></surname>
<given-names><![CDATA[JAV]]></given-names>
</name>
<name>
<surname><![CDATA[Machado]]></surname>
<given-names><![CDATA[LC]]></given-names>
</name>
<name>
<surname><![CDATA[Brito]]></surname>
<given-names><![CDATA[JÁG]]></given-names>
</name>
<name>
<surname><![CDATA[Bertechini]]></surname>
<given-names><![CDATA[AG.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Associação de carboidrase e fitase em dietas valorizadas para poedeiras semipesadas]]></article-title>
<source><![CDATA[Acta Sci Anim Sci]]></source>
<year>2012</year>
<volume>34</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>253-8</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sk&#345;ivan]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Englmaierová]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sk&#345;ivanová]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Negative effect of phytase superdosing in laying hens]]></article-title>
<source><![CDATA[Czech J Anim Sci]]></source>
<year>2018</year>
<numero>63</numero>
<issue>63</issue>
<page-range>182-7</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Viana]]></surname>
<given-names><![CDATA[MT]]></given-names>
</name>
<name>
<surname><![CDATA[Albino]]></surname>
<given-names><![CDATA[LFT]]></given-names>
</name>
<name>
<surname><![CDATA[Rostagno]]></surname>
<given-names><![CDATA[HS]]></given-names>
</name>
<name>
<surname><![CDATA[Barreto]]></surname>
<given-names><![CDATA[SLT]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[EA]]></given-names>
</name>
<name>
<surname><![CDATA[Florentino]]></surname>
<given-names><![CDATA[WM.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efeito da suplementação de enzima fitase sobre o metabolismo de nutrientes e o desempenho de poedeiras.]]></article-title>
<source><![CDATA[Rev Bras Zootec]]></source>
<year>2009</year>
<volume>38</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1074-80</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[YB]]></given-names>
</name>
<name>
<surname><![CDATA[Ravindran]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Morel]]></surname>
<given-names><![CDATA[PCH]]></given-names>
</name>
<name>
<surname><![CDATA[Hendriks]]></surname>
<given-names><![CDATA[WH]]></given-names>
</name>
<name>
<surname><![CDATA[Pierce]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of a Microbial Phytase, Produced by Solid-State Fermentation, in Broiler Diets. 1. Influence on Performance, Toe Ash Contents, and Phosphorus Equivalency Estimates]]></article-title>
<source><![CDATA[J Appl Poult Res]]></source>
<year>2004</year>
<volume>13</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>373-83</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
