<?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>2730-5066</journal-id>
<journal-title><![CDATA[Agrociencia Uruguay]]></journal-title>
<abbrev-journal-title><![CDATA[Agrocienc. Urug.]]></abbrev-journal-title>
<issn>2730-5066</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Agronomía - Instituto de Nacional de Investigación Agropecuaria]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2730-50662024000201301</article-id>
<article-id pub-id-type="doi">10.31285/agro.28.1236</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Productivity versus area: The growth dilemma of the Uruguayan dairy sector]]></article-title>
<article-title xml:lang="es"><![CDATA[Productividad vs. área: El dilema de crecimiento de la lechería uruguaya]]></article-title>
<article-title xml:lang="pt"><![CDATA[Produtividade vs. área: O dilema do crescimento do setor lácteo uruguaio]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chilibroste]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Battegazzore]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fariña]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de la República Facultad de Agronomía Departamento Producción Animal y Pasturas]]></institution>
<addr-line><![CDATA[ Paysandú]]></addr-line>
<country>Uruguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Conaprole Área Productores ]]></institution>
<addr-line><![CDATA[ Montevideo]]></addr-line>
<country>Uruguay</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Investigación Agropecuaria (INIA)  ]]></institution>
<addr-line><![CDATA[ Colonia]]></addr-line>
<country>Uruguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<volume>28</volume>
<numero>nspe1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S2730-50662024000201301&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S2730-50662024000201301&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S2730-50662024000201301&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The objective of this study was to analyze the development dynamic of the Uruguayan dairy farms in the last decade integrating country, experimental and commercial databases. A large commercial dairy farm database was segmented into four groups according to productivity and growth rate (PGR) during the fiscal years 2015/2016 to 2021/2022. Productivity growth rate was calculated as: PGR= (P2122/P1516)1/6 - 1, where: P2122 = productivity fiscal year 2021/22, and P1516 = productivity fiscal year 2015/2016. The PGR groups were defined as: negative (NPGR; PGR &lt; 0% per year), low (LPGR; 0 &#8804; PGR &lt; 3%), medium (MPGR; 3 &#8804; PGR &#8804; 6%) and high productivity growth rate (HPGR; PGR &#8805; 6%). A mixed model was used to evaluate productivity slope heterogeneity with fiscal year as a continuous variable, PGR group as categorical and their interaction. Farms that were able to increase productivity (M and H PGR) had higher mean productivity, pasture DMI and margin over feed cost vs. the less dynamic systems (N and L PGR). Larger changes in productivity (+64 and +27% for H and M PGR, respectively) were likely primarily due to changes in stocking rate (+20 to 30%) and in individual cow milk production (+10 to 20%). Production systems that increased productivity relied on increasing stocking rate and individual milk production based on more home-grown forage consumption. However, higher PGR was linked to lower initial values of productivity, which suggests decreasing returns as the dairy farms reached higher milk yields and forage DMI.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El objetivo de este trabajo fue analizar la dinámica de desarrollo de las empresas lecheras en Uruguay durante la última década, integrando información a nivel nacional, experimental y de predios comerciales. Se segmentó una base de datos comercial con registros continuos durante los ejercicios agrícolas 2015/2016 y 2021/2022 en cuatro grupos de acuerdo con productividad y tasa de crecimiento (PGR). La tasa de crecimiento se calculó como: PGR= (P2122/P1516)1/6 - 1, donde P2122 = productividad en el ejercicio agrícola 2021/22, y P1516 = productividad en el ejercicio agrícola 2015/2016. Los grupos de PGR fueron definidos como: tasa de crecimiento negativa (NPGR; PGR &lt;0% por año), baja (LPGR; 0 &#8804; PGR &lt; 3%), media (MPGR; 3 &#8804; PGR &#8804; 6%) y alta (HPGR; PGR &#8805; 6%). La heterogeneidad de pendiente de la productividad fue analizada con un modelo mixto con año agrícola como variable continua, grupo de crecimiento (PGR) como variable categórica y su interacción. Los grupos que incrementaron productividad (M y H PGR) exhibieron mayor productividad, consumo de forraje y margen de alimentación que los grupos menos dinámicos (N y L PGR). Los cambios significativos en productividad (+64 y +27% para H y M PGR, respectivamente) estuvieron asociados con ajustes en carga (+20 a 30%) y en producción individual (+10 a 20%). Es de resaltar que los sistemas que incrementaron productividad con ajustes de carga y producción individual lograron mayor consumo de forraje.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo: Um grande banco de dados de fazendas leiteiras comerciais foi segmentado em quatro grupos de acordo com a produtividade e taxa de crescimento (PGR) durante os anos agrícolas de 2015/2016 a 2021/2022. A taxa de crescimento da produtividade foi calculada como: PGR= (P2122/P1516)1/6 - 1, onde: P2122= produtividade do ano agrícola 2021/22 e P1516= produtividade do ano agrícola 2015/2016. Os grupos de PGR foram definidos como: negativa (NPGR; PGR&lt;0% ao ano), baixa (LPGR; 0 &#8804; PGR &lt; 3%), média (MPGR; 3 &#8804; PGR&#8804; 6%) e alta taxa de crescimento da produtividade (HPGR; PGR &#8805; 6%). Um modelo misto foi usado para avaliar a heterogeneidade do declive da produtividade com o ano agrícola como variável contínua, o grupo de PGR como categórico e sua interação. As fazendas que conseguiram aumentar a produtividade (MPGR e HPGR) tiveram maior produtividade média, consumo de pasto e maior receita menos custo alimentar em comparação com os sistemas menos dinâmicos (NPGR e LPGR). A carga animal e produtividade exibiram a mesma tendência, enquanto a produção individual aumentou nos três grupos positivos (LPGR, MPGR e HPGR), mas permaneceu constante no NPGR. Mudanças maiores na produtividade (+64 e +27% para HPGR e MPGR, respectivamente) provavelmente aconteceram principalmente devido a mudanças na carga animal (+20 a 30%) e na produção individual de leite das vacas (+10 a 20%). É importante ressaltar que os sistemas que aumentaram a produtividade com ajustes na carga e na produção individual conseguiram um maior consumo de forragem.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[área]]></kwd>
<kwd lng="en"><![CDATA[dairy]]></kwd>
<kwd lng="en"><![CDATA[growth]]></kwd>
<kwd lng="en"><![CDATA[productivity]]></kwd>
<kwd lng="es"><![CDATA[área]]></kwd>
<kwd lng="es"><![CDATA[leche]]></kwd>
<kwd lng="es"><![CDATA[crecimiento]]></kwd>
<kwd lng="es"><![CDATA[productividad]]></kwd>
<kwd lng="pt"><![CDATA[área]]></kwd>
<kwd lng="pt"><![CDATA[leite]]></kwd>
<kwd lng="pt"><![CDATA[crescimento]]></kwd>
<kwd lng="pt"><![CDATA[produtividade]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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