<?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>2079-3480</journal-id>
<journal-title><![CDATA[Cuban Journal of Agricultural Science]]></journal-title>
<abbrev-journal-title><![CDATA[Cuban J. Agric. Sci.]]></abbrev-journal-title>
<issn>2079-3480</issn>
<publisher>
<publisher-name><![CDATA[Editorial del Instituto de Ciencia Animal]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2079-34802022000100005</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Effect of natural shade on the grazing behavior of breeding ewes from Pelibuey breed]]></article-title>
<article-title xml:lang="es"><![CDATA[Efecto de la sombra natural en la conducta en pastoreo de ovejas reproductoras de la raza Pelibuey]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serrano]]></surname>
<given-names><![CDATA[J.O.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Melo]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera]]></surname>
<given-names><![CDATA[Magaly]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villares]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Manuel]]></surname>
<given-names><![CDATA[F.D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fonseca]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lorenzo]]></surname>
<given-names><![CDATA[J C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciego de Ávila Máximo Gómez Báez (UNICA) Facultad de Ciencias Agropecuarias ]]></institution>
<addr-line><![CDATA[Ciego de Ávila ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto de Ciencia Animal  ]]></institution>
<addr-line><![CDATA[Mayabeque ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Mandume Ya Ndemufayo Instituto Superior Politécnico de Huíla (ISPH) ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Angola</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Granma (UDG) Centro de Estudio de Producción Animal (CEPA) ]]></institution>
<addr-line><![CDATA[Granma ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad de Ciego de Ávila Máximo Gómez Báez Centro de Bioplanta Laboratorio de mejoramiento y conservación de recursos fitogenéticos]]></institution>
<addr-line><![CDATA[Ciego de Ávila ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2022</year>
</pub-date>
<volume>56</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2079-34802022000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2079-34802022000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2079-34802022000100005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A total of twenty-four breeding ewes from Pelibuey breed were used, divided into two treatments of 12 animals each, to determine the effect of natural shade on the behavior of these animals during grazing. In treatment one, they grazed in the system with natural shade and in treatment two, without shade. Each treatment included the three physiological states: non-pregnant cow, pregnant and lactating. Both groups grazed in two paddocks of natural grasses, of 1.3 ha: one without natural shade, and another with shade from the trees Casuarina equisetifolia (casuarina) and Samanea saman (carob tree). The grazing performance was recorded. Every 10 min., observations during six hours of grazing per day were recorded. Contingency table analysis was used to test the interaction between activities and system type, with and without shade, between activities and day session, and between activities and season for each system, with trees and without them. With the analysis of comparison of proportions (chi square), the time percentages were compared. There was interaction between the activities and the characteristics of the farms, with and without trees, and between the activities and the day session. The animals that had access to the shade of the trees spent more time grazing-walking. When they grazed with trees, they selected activities in the shade, such as rest and rumination. A higher proportion of grazing time was recorded during the morning session. In the system with trees, the highest proportions of grazing time were obtained in both seasons.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se utilizaron 24 ovejas reproductoras de la raza Pelibuey, divididas en dos tratamientos, de 12 animales cada uno, para determinar el efecto de la sombra natural en la conducta de estos animales en pastoreo. En el tratamiento uno, pastorearon en el sistema con sombra natural y en el dos, sin sombra. Cada tratamiento incluyó los tres estados fisiológicos: vacías, gestantes y lactantes. Ambos grupos pastorearon en dos cuartones de pastos naturales, de 1.3 ha: uno sin sombra natural, y otro con sombra de los árboles Casuarina equisetifolia (casuarina) y Samanea saman (algarrobo). Se registró la conducta en pastoreo. Cada 10 min., se registraron las observaciones durante seis horas de pastoreo por día. Se utilizó un análisis de tablas de contingencia para probar la interacción entre las actividades y el tipo de sistema, con sombra y sin ella, entre las actividades y la sesión del día, y entre las actividades y la época para cada sistema, con árboles y sin ellos. Con el análisis de comparación de proporciones (chi cuadrado) se compararon los porcentajes del tiempo. Hubo interacción entre las actividades y las características de las fincas, con árboles y sin ellos, y entre las actividades y la sesión del día. Los animales que tuvieron acceso a la sombra de los árboles dedicaron más tiempo a pastar-caminar. Cuando pastorearon con árboles, seleccionaron las actividades a la sombra, como el descanso y la rumia. Se registró mayor proporción del tiempo en pastoreo durante la sesión de la mañana. En el sistema con árboles, se obtuvieron las mayores proporciones del tiempo en pastoreo, en ambas épocas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[grazing]]></kwd>
<kwd lng="en"><![CDATA[trees]]></kwd>
<kwd lng="en"><![CDATA[animal behavior]]></kwd>
<kwd lng="en"><![CDATA[silvopastoral system]]></kwd>
<kwd lng="es"><![CDATA[pastoreo]]></kwd>
<kwd lng="es"><![CDATA[árboles]]></kwd>
<kwd lng="es"><![CDATA[conducta animal]]></kwd>
<kwd lng="es"><![CDATA[sistema silvopastoril]]></kwd>
</kwd-group>
</article-meta>
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