<?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>0122-9354</journal-id>
<journal-title><![CDATA[Revista de Medicina Veterinaria]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Med. Vet.]]></abbrev-journal-title>
<issn>0122-9354</issn>
<publisher>
<publisher-name><![CDATA[Universidad de La Salle]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-93542017000300017</article-id>
<article-id pub-id-type="doi">10.19052/mv.4384</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Factores predisponentes para la enfermedad quística ovárica bovina y su efecto en la eficiencia reproductiva]]></article-title>
<article-title xml:lang="en"><![CDATA[Factors predisposing to bovine ovarian cystic disease and its effect on reproductive efficiency]]></article-title>
<article-title xml:lang="pt"><![CDATA[Fatores de pré-disposição à doença cística ovárica bovina e seu efeito na eficiência reprodutiva]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chamba Ochoa]]></surname>
<given-names><![CDATA[Hermógenes René]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Benítez González]]></surname>
<given-names><![CDATA[Edgar Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pesántez Campoverde]]></surname>
<given-names><![CDATA[Manuel Teodoro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Loja  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Loja  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional de Loja  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>07</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>07</month>
<year>2017</year>
</pub-date>
<numero>35</numero>
<fpage>17</fpage>
<lpage>28</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-93542017000300017&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-93542017000300017&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-93542017000300017&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En el ganado lechero los quistes ováricos son anomalías habituales. Se caracterizan por presentar anestro, celos irregulares, aumento de intervalos reproductivos e infertilidad. Su origen es aún desconocido. Es importante estudiar su patogenia y posible vinculación a ciertos factores predisponentes en su presentación. El objetivo de este trabajo fue determinar ecográficamente la prevalencia y tipo de quistes ováricos. Se estudiaron 93 vacas que pertenecían a 23 ganaderías de la Hoya de Loja. Las formaciones quísticas se identificaron y clasificaron según el perfil ecográfico de 24 días, con 6 exploraciones cada 4 días. Las edades de los animales fluctuaron entre 2 y 12 años, con condición corporal &gt; 2. Para el análisis de datos se utilizó el PROC REG en el programa estadístico SPSS Statistics 21. Se determinó un incremento de 256,4 días abiertos en animales con quistes ováricos   versus 114,8 días abiertos en las vacas sanas control. La prevalencia de quistes ováricos fue de 32 %, distribuidos en 21 % de quistes foliculares y 11 % de luteínicos. Además, se evidenció correlación entre presencia de quistes con condición corporal &lt; 3 (23 %), presencia de metritis (9 %) y utilización de productos hormonales (10 %). La manifestación clínica de los quistes ováricos se expresó con síntomas de anestro de vacas con quistes luteínicos (90 %), y la presencia de celos irregulares en vacas con quistes foliculares (40 %). En conclusión, los quistes ováricos son causa directa del incremento de los periodos parto-celo, parto-concepción y del intervalo entre partos en vacas lecheras en posparto.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Ovarian cysts are common anomalies in dairy cattle. They are characterized by presenting with anestrus, irregular estrus, increased reproductive intervals, and infertility. Their origin is still unknown, thus it is important to study their pathogenesis and possible relation to certain factors predisposing to their onset. The objective of this study was to determine by ultrasound the prevalence and types of ovarian cysts. 93 cows belonging to 23 farms in the Hoya de Loja were studied. Cystic formations were identified and classified according to ultrasound profile during 24 days, with 6 scans every 4 days. The age of the animals varied from 2 to 12 years, with body condition &gt; 2. For data analysis, PROC REG was used in the SPSS Statistics 21 statistical program. An increase of 256.4 open days was evidenced in cows with ovarian cysts, versus 114.8 open days in healthy control animals. The prevalence of ovarian cysts was 32%, distributed in follicular cysts (21%) and luteal cysts (11%). In addition, there was a correlation between the presence of cysts and body condition &lt; 3 (23%), presence of metritis (9%), and the use of hormonal products (10%). Ovarian cysts were clinically manifested through symptoms of anestrus in cows with luteal cysts (90%) and the presence of irregular estrus in cows with follicular cysts (40%). In conclusion, ovarian cysts are a direct cause of increased periods of delivery-estrus and delivery-conception, as well as increased intervals between deliveries in postpartum dairy cows.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo No gado leiteiro os cistos ováricos são anomalias habituais. Se caracterizam por apresentar anestro, cios irregulares, aumento de intervalos reprodutivos e infertilidade. Sua origem ainda é desconhecida. É importante estudar sua patogenia e possível vinculação a certos fatores de pré-disposição em sua apresentação. O objetivo deste trabalho foi determinar eco graficamente a prevalência e tipo de cistos ováricos. Foram analisadas 93 vacas que pertenciam a 23 rebanhos de gado de La Hoya de Loja. As formações císticas se identificaram e classificaram segundo o perfil ecográfico de 24 dias, com 6 explorações cada 4 dias. As idades dos animais variaram entre 2 e 12 anos, com condição corporal &gt; 2. Para a análise de dados se utilizou o PROC REG no programa estatístico SPSS Statistics 21. Determinou-se um aumento de 256,4 dias abertos em animais com cistos ováricos versus 114,8 dias abertos nas vacas saudáveis controladas. A prevalência de cistos ováricos foi de 32 %, distribuídos em 21 % de cistos foliculares e 11 % de cistos lúteos. Além do mais, evidenciou-se correlação entre presença de cistos com condição corporal &lt; 3 (23 %), presença de metrite (9 %) e utilização de produtos hormonais (10 %). A manifestação clínica dos cistos ováricos se expressou com sintomas de anestro de vacas com cistos lúteos (90 %), e a presença de cios irregulares em vacas com cistos foliculares (40 %). Em conclusão, os cistos ováricos são causa direta do aumento dos períodos parto-cio, parto-concepção e do intervalo entre partos em vacas leiteiras em pós-parto.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[anestro]]></kwd>
<kwd lng="es"><![CDATA[celos]]></kwd>
<kwd lng="es"><![CDATA[quistes luteínicos]]></kwd>
<kwd lng="es"><![CDATA[quistes ováricos]]></kwd>
<kwd lng="en"><![CDATA[anestrus]]></kwd>
<kwd lng="en"><![CDATA[estrus]]></kwd>
<kwd lng="en"><![CDATA[luteal cysts]]></kwd>
<kwd lng="en"><![CDATA[ovarian cyst]]></kwd>
<kwd lng="pt"><![CDATA[anestro]]></kwd>
<kwd lng="pt"><![CDATA[cios]]></kwd>
<kwd lng="pt"><![CDATA[cistos lúteos]]></kwd>
<kwd lng="pt"><![CDATA[cistos ováricos]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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