<?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>S2079-34802022000300002</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Effect of the inclusion of SUBTILPROBIO® zootechnical additive in the production of different livestock categories in Matanzas]]></article-title>
<article-title xml:lang="es"><![CDATA[Efecto de la inclusión del aditivo zootécnico SUBTILPROBIO® en la producción de diferentes categorías pecuarias en el territorio matancero]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Milián]]></surname>
<given-names><![CDATA[Grethel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Beruvides]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[Marlen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rondón]]></surname>
<given-names><![CDATA[Ana J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[M.L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Placeres]]></surname>
<given-names><![CDATA[Iraní]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Matanzas  ]]></institution>
<addr-line><![CDATA[ Matanzas]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Clínica Veterinaria  ]]></institution>
<addr-line><![CDATA[ Matanzas]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Estatal Amazónica  ]]></institution>
<addr-line><![CDATA[Puyo Pastaza]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>56</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2079-34802022000300002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2079-34802022000300002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2079-34802022000300002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[The impact that the use of the nutritional additive SUBTILPROBIO® has on the feeding of different livestock categories is exposed: laying hens L33, Heavy Pure Lines E1 and B4, Yorkshire - Landrace x L35 pigs, in breeding, pre-fattening and fattening, and small ruminants. The research was carried out at different times and production units in Matanzas territory: Combinado Avícola, Empresa Genética Avícola and Pie de Cría, Unidades Porcinas and Empresa Pecuaria Genética de Matanzas, Cuba. This additive was made with the strains Bacillus subtilis subspecies subtilis C-31, C-34 and E-44 at a concentration of 109 cfu/g. The results showed increases in the productive indicators: live weight, intake, conversion, egg production, decrease in cracked and disqualified eggs, economic benefits for weight concepts. The health indicators showed positive results for mortality, viability, death by pecking or cannibalism, decrease in the presence of bacterial and immunological diseases. The effectiveness of the zootechnical additive SUBTILPROBIO® was showed as an alternative in livestock production.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se expone el impacto que tiene en la práctica productiva el uso del aditivo nutricional SUBTILPROBIO® en la alimentación de diferentes categorías pecuarias: gallinas ponedoras L33, Líneas Puras Pesadas E1 y B4, cerdos Yorkshire - Landrace x L35, en cría, preceba y ceba, y pequeños rumiantes. La investigación se llevó a cabo en diferentes momentos y unidades de producción del territorio matancero: Combinado Avícola, Empresa Genética Avícola y Pie de Cría, Unidades Porcinas y Empresa Pecuaria Genética de Matanzas, Cuba. Este aditivo se elaboró con las cepas Bacillus subtilis subespecie subtilis C-31, C-34 y E-44 en una concentración de 109 ufc/g. Los resultados mostraron incrementos en los indicadores productivos: peso vivo, consumo, conversión, producción de huevos, disminución de huevos cascados y descalificados, beneficios económicos por conceptos de peso. Los indicadores de salud dejaron ver resultados positivos para mortalidad, viabilidad, muerte por picaje o canibalismo, disminución de la presencia de enfermedades bacterianas e inmunológicas. Se demostró la efectividad del aditivo zootécnico SUBTILPROBIO® como alternativa en las producciones pecuarias.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[nutritional additives]]></kwd>
<kwd lng="en"><![CDATA[Bacillus endospores]]></kwd>
<kwd lng="en"><![CDATA[animal feeding]]></kwd>
<kwd lng="en"><![CDATA[antibiotics]]></kwd>
<kwd lng="en"><![CDATA[probiotics]]></kwd>
<kwd lng="es"><![CDATA[aditivos nutricionales]]></kwd>
<kwd lng="es"><![CDATA[endosporas de Bacillus]]></kwd>
<kwd lng="es"><![CDATA[alimentación animal]]></kwd>
<kwd lng="es"><![CDATA[antibióticos]]></kwd>
<kwd lng="es"><![CDATA[probióticos]]></kwd>
</kwd-group>
</article-meta>
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