<?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>2448-6132</journal-id>
<journal-title><![CDATA[Abanico veterinario]]></journal-title>
<abbrev-journal-title><![CDATA[Abanico vet]]></abbrev-journal-title>
<issn>2448-6132</issn>
<publisher>
<publisher-name><![CDATA[Sergio Martínez González]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-61322021000100108</article-id>
<article-id pub-id-type="doi">10.21929/abavet2021.12</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Criopreservación espermática de Ambystoma mexicanum (Shaw &amp; Nodder, 1798)]]></article-title>
<article-title xml:lang="en"><![CDATA[Ambystoma mexicanum sperm cryopreservation (Shaw &amp; Nodder, 1798)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivera-Pacheco]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Barragán]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[León-Galván]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ocampo-Cervantes]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Rivero]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gual-Sill]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Metropolitana  ]]></institution>
<addr-line><![CDATA[Iztapalapa CDMX]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Metropolitana  ]]></institution>
<addr-line><![CDATA[Xochimilco CDMX]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento de Biología ]]></institution>
<addr-line><![CDATA[Iztapalapa CDMX]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma Metropolitana  ]]></institution>
<addr-line><![CDATA[Xochimilco CDMX]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>11</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-61322021000100108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-61322021000100108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-61322021000100108&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El Ambystoma mexicanum se encuentra en peligro de extinción en vida libre, debido a efectos antropogénicos; la criopreservación espermática para su reproducción en cautiverio, puede ayudar a su conservación ex situ. El objetivo de esta investigación fue identificar la viabilidad en fresco y post descongelación de espermatozoides provenientes de diferentes espermatóforos. Durante la temporada reproductiva se indujo en nueve ejemplares, la liberación de espermatóforos mediante la reducción de la temperatura del agua. La concentración promedio por espermatóforo fue de 2.6 ± 0.6 X104 espermatozoides. Se determinó en espermatozoides en fresco y post descongelación, una reducción del 30% de espermatozoides vivos y un incremento de 15 % de morfología anormal. Con las lectinas WGA y PNA, unidas a FITC, se determinaron dos patrones de fluorescencia distintos con cada una, lo cual evidencio la presencia y distribución membranal de N-acetil glucosamina, ácido siálico y manosa respectivamente. Los porcentajes de espermatozoides con cada patrón de fluorescencia mostraron diferencias asociadas al número de espermatóforos de cada liberación. Se determinaron diferencias en la viabilidad de espermatozoides obtenidos de liberaciones con diferente número de espermatóforos. El protocolo para la obtención y criopreservación espermática de A mexicanum, fue eficiente como herramienta para utilizar semen criopreservado para su reproducción ex situ.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Ambystoma mexicanum is in danger of extinction in free-living, due to anthropogenic actions; sperm cryopreservation for captive breeding can help in its ex-situ conservation. This research aimed to identify the viability of fresh and post-thawing sperm from different spermatophores. During the breeding season, spermatophores releasing was induced in nine specimens by reducing water temperature. The mean concentration per spermatophores was 2.6 ± 0.6 x104 sperm. A reduction of 30 % of living sperms and an increase of 15 % of abnormal morphology were determined in fresh and post-thawing sperm. With the WGA and PNA lectins bounded to FITC, two different fluorescence patterns were determined in each one, which showed the membrane presence and distribution of N-acetyl glucosamine, sialic acid, and mannose respectively. Sperm percentages in each fluorescence pattern showed differences associated with the number of spermatophores in each release. Differences in sperm viability from releases with different numbers of spermatophores were determined. The sperm collection and cryopreservation protocol of A mexicanum were efficient as tools for using cryopreserved semen for ex situ reproduction.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Anfibio]]></kwd>
<kwd lng="es"><![CDATA[conservación]]></kwd>
<kwd lng="es"><![CDATA[espermatóforo]]></kwd>
<kwd lng="es"><![CDATA[urodelo]]></kwd>
<kwd lng="en"><![CDATA[Amphibian]]></kwd>
<kwd lng="en"><![CDATA[conservation]]></kwd>
<kwd lng="en"><![CDATA[spermatophore]]></kwd>
<kwd lng="en"><![CDATA[urodele]]></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[Ananjeva]]></surname>
<given-names><![CDATA[NB]]></given-names>
</name>
<name>
<surname><![CDATA[Uteshev]]></surname>
<given-names><![CDATA[VK]]></given-names>
</name>
<name>
<surname><![CDATA[Orlov]]></surname>
<given-names><![CDATA[NL]]></given-names>
</name>
<name>
<surname><![CDATA[Gakhova]]></surname>
<given-names><![CDATA[EN.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Strategies for conservation of endangered amphibian and reptile species]]></article-title>
<source><![CDATA[Biological Bulletin]]></source>
<year>2015</year>
<volume>42</volume>
<page-range>432-9</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Atencio]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Pardo]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de dimetilacetamida como crioprotector para la crioconservación de semen de Bocachico prochilodus magdalenae]]></article-title>
<source><![CDATA[Archivos de Medicina Veterinaria]]></source>
<year>2013</year>
<volume>45</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>151-8</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Browne]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Chester]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Figiel]]></surname>
<given-names><![CDATA[Jr]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Amphibian conservation and cryopreservation of sperm, cells, and tissues]]></article-title>
<source><![CDATA[Cryopreservation in Aquatic Species]]></source>
<year>2011</year>
<volume>8</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>345-65</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Browne]]></surname>
<given-names><![CDATA[RK]]></given-names>
</name>
<name>
<surname><![CDATA[Kaurova]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Uteshev]]></surname>
<given-names><![CDATA[VK]]></given-names>
</name>
<name>
<surname><![CDATA[Shishova]]></surname>
<given-names><![CDATA[NV]]></given-names>
</name>
<name>
<surname><![CDATA[McGinnity]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Figiel]]></surname>
<given-names><![CDATA[CR]]></given-names>
</name>
<name>
<surname><![CDATA[Mansour]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Agnew]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Gakhova]]></surname>
<given-names><![CDATA[EN]]></given-names>
</name>
<name>
<surname><![CDATA[Dzyuba]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Cosson]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sperm motility of externally fertilizing fish ans amphibians]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2015</year>
<volume>83</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-13</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Browne]]></surname>
<given-names><![CDATA[RK]]></given-names>
</name>
<name>
<surname><![CDATA[Silla]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
<name>
<surname><![CDATA[Upton]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Della-Togna]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Marcec-Greaves]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Shishova]]></surname>
<given-names><![CDATA[NV]]></given-names>
</name>
<name>
<surname><![CDATA[Uteshev]]></surname>
<given-names><![CDATA[VK]]></given-names>
</name>
<name>
<surname><![CDATA[Proaño]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[OD]]></given-names>
</name>
<name>
<surname><![CDATA[Mansour]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Kaurova]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Gakhova]]></surname>
<given-names><![CDATA[EN]]></given-names>
</name>
<name>
<surname><![CDATA[Cosson]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Dyzuba]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Kramarova]]></surname>
<given-names><![CDATA[LI]]></given-names>
</name>
<name>
<surname><![CDATA[McGinnity]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Gonzalez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Clulow]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Clulow]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sperm collection and storage for the sustainable management of amphibian biodiversity]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2019</year>
<volume>5</volume>
<numero>133</numero>
<issue>133</issue>
<page-range>187-200</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Catenazzi]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[State of the world&#8217;s amphibians]]></article-title>
<source><![CDATA[Annual Review of Environment and Resources]]></source>
<year>2015</year>
<volume>40</volume>
<page-range>91-119</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Clulow]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Trudeau]]></surname>
<given-names><![CDATA[VL]]></given-names>
</name>
<name>
<surname><![CDATA[Kouba]]></surname>
<given-names><![CDATA[AJ.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Amphibian declines in the twenty-first century: Why we need assisted reproductive technologies]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Holt]]></surname>
<given-names><![CDATA[W.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Brown]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Comizzoli]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Reproductive Sciences in Animal Conservation]]></source>
<year>2014</year>
<page-range>275-316</page-range><publisher-loc><![CDATA[New York, NY ]]></publisher-loc>
<publisher-name><![CDATA[Springer New York]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Comizzoli]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Songsasen]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Hagedorn]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Wildt]]></surname>
<given-names><![CDATA[DE.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparative cryobiological traits and requirements for gametes and gonadal tissues collected from wildlife species]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2012</year>
<volume>78</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1666-81</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chester]]></surname>
<given-names><![CDATA[RF.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cryopreservation of sperm from the axolotl Ambystoma mexicanum: implications for conservation]]></article-title>
<source><![CDATA[Herpetological Conservation and Biology]]></source>
<year>2013</year>
<volume>8</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>748-55</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Doyle]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[McCormick]]></surname>
<given-names><![CDATA[CR]]></given-names>
</name>
<name>
<surname><![CDATA[De Woody]]></surname>
<given-names><![CDATA[JA.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The quantification of spermatozoa by real-time quantitative PCR, spectrophotometry, and spermatophore cap size: Technical advances]]></article-title>
<source><![CDATA[Molecular Ecology Resources]]></source>
<year>2011</year>
<volume>11</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>101-6</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="">
<collab>EPI. Info R7</collab>
<source><![CDATA[paquete estadístico de libre acceso Epi. Info 7R]]></source>
<year>2020</year>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Herrera]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Calderón]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Cruz]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Ávila]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Quintero]]></surname>
<given-names><![CDATA[GE]]></given-names>
</name>
<name>
<surname><![CDATA[Fierro]]></surname>
<given-names><![CDATA[RC.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Changes in the membrane carbohydrates from sperm cryopreserved with dimethylsulfoxide or polyvinylpyrrolidone of red-tailed hawk (Buteo jamaicencis)]]></article-title>
<source><![CDATA[Cryo Letters]]></source>
<year>2017</year>
<volume>38</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>257-62</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hall]]></surname>
<given-names><![CDATA[KW]]></given-names>
</name>
<name>
<surname><![CDATA[Eisthen]]></surname>
<given-names><![CDATA[HL]]></given-names>
</name>
<name>
<surname><![CDATA[Williams]]></surname>
<given-names><![CDATA[BL.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Proteinaceous pheromone homologs identified from the cloacal gland transcriptome of a male axolotl, Ambystoma mexicanum]]></article-title>
<source><![CDATA[PLOS ONE 11]]></source>
<year>2016</year>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez]]></surname>
<given-names><![CDATA[JO]]></given-names>
</name>
<name>
<surname><![CDATA[Aviña]]></surname>
<given-names><![CDATA[CR]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[AE]]></given-names>
</name>
<name>
<surname><![CDATA[Lucero]]></surname>
<given-names><![CDATA[FG]]></given-names>
</name>
<name>
<surname><![CDATA[Andreu]]></surname>
<given-names><![CDATA[CG.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Conservación exsitu de poblaciones en riesgo de ajolotes (Ambystoma spp.) del estado de puebla, Mexico]]></article-title>
<source><![CDATA[Revista Latinoamericana el Ambiente y las Ciencias]]></source>
<year>2017</year>
<volume>8</volume>
<numero>18</numero>
<issue>18</issue>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Khattak]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Murawala]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Andreas]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Kappert]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Schuez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Sandoval-Guzmán]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Crawford]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Tanaka]]></surname>
<given-names><![CDATA[EM.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Optimized axolotl (Ambystoma mexicanum) husbandry, breeding, metamorphosis, transgenesis and tamoxifen-promedioted recombination]]></article-title>
<source><![CDATA[Nature Protocols]]></source>
<year>2014</year>
<volume>9</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>529-40</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="">
<collab>NOM-059-SEMARNAT-2010, Norma Oficial Mexicana</collab>
<source><![CDATA[Protección ambiental-Especies nativas de México de flora y fauna silvestres-Categorías de riesgo y especificaciones para su inclusión, exclusión o cambio-Lista de especies en riesgo]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mansour]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Lahnsteiner]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Patzner]]></surname>
<given-names><![CDATA[RA.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Collection of gametes from live axolotl, Ambystoma mexicanum, and standardization of in vitro fertilization]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2011</year>
<volume>75</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>354-61</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mendoza]]></surname>
<given-names><![CDATA[VT.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Importancia ecológica y cultural de una especie endémica de ajolote (Ambystoma dumerilii) del lago de Patzcuaro Michoacan]]></article-title>
<source><![CDATA[Etnobiología]]></source>
<year>2012</year>
<volume>10</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>40-9</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[DJ.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Regulation of Sperm Function by Oviduct Fluid and the Epithelium: Insight into the Role of Glycans]]></article-title>
<source><![CDATA[Reproduction in Domestic Animals]]></source>
<year>2015</year>
<volume>50</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>31-9</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Naofumi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Protein-carbohydrate interaction between sperm and the egg-coating envelope and its regulation by dicalcin, a Xenopus laevis, zona pellucida protein- associated protein]]></article-title>
<source><![CDATA[Molecules]]></source>
<year>2015</year>
<volume>20</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>9468-86</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Prieto]]></surname>
<given-names><![CDATA[MT]]></given-names>
</name>
<name>
<surname><![CDATA[Sanchez-Calabuig]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Hildebrandt]]></surname>
<given-names><![CDATA[TB]]></given-names>
</name>
<name>
<surname><![CDATA[Santiago-Moreno]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Saragusty]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sperm cryopreservation in wild animals]]></article-title>
<source><![CDATA[European Journal of Wildlife Research]]></source>
<year>2014</year>
<volume>60</volume>
<page-range>851-64</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sáez]]></surname>
<given-names><![CDATA[FJ]]></given-names>
</name>
<name>
<surname><![CDATA[Madrid]]></surname>
<given-names><![CDATA[JF]]></given-names>
</name>
<name>
<surname><![CDATA[Cardoso]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Glycoconjugates of the urodele amphibian testis shown by lectin cytochemical methods]]></article-title>
<source><![CDATA[Microscopy Research and Technique]]></source>
<year>2004</year>
<volume>64</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>63-76</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shishova]]></surname>
<given-names><![CDATA[NR]]></given-names>
</name>
<name>
<surname><![CDATA[Uteshev]]></surname>
<given-names><![CDATA[VK]]></given-names>
</name>
<name>
<surname><![CDATA[Kaurova]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Browne]]></surname>
<given-names><![CDATA[RK]]></given-names>
</name>
<name>
<surname><![CDATA[Gakhova]]></surname>
<given-names><![CDATA[EN.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cryopreservation of hormonally induced sperm for the conservation of threatened amphibians with rana temporaria as a model research species]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2011</year>
<volume>75</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>220-32</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Silla]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
<name>
<surname><![CDATA[Byrne]]></surname>
<given-names><![CDATA[PG.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Role of Reproductive Technologies in Amphibian Conservation Breeding Programs]]></article-title>
<source><![CDATA[Annual Review of Animal Biosciences]]></source>
<year>2019</year>
<volume>7</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>499-519</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sunny]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Monroy-Vilchis]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Fajardo]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Aguilera-Reyes]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Genetic diversity and structure of an endemic and critically endangered stream river salamander (Caudata: Ambystoma leorae) in México]]></article-title>
<source><![CDATA[Conservation Genetics]]></source>
<year>2014</year>
<volume>15</volume>
<page-range>49-59</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tanis&#322;aw]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Anna]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Magdalena]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Krzysztof]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Application of two staining methods for sperm morphometric evaluation in domestic pigs]]></article-title>
<source><![CDATA[Journal of Veterinary Research]]></source>
<year>2017</year>
<volume>61</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>345-9</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Peláez]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Bongalhardo]]></surname>
<given-names><![CDATA[DC]]></given-names>
</name>
<name>
<surname><![CDATA[Long]]></surname>
<given-names><![CDATA[JA.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characterizing the glycocalyx of poultry spermatozoa: III. Semen cryopreservation methods alter the carbohydrate component of rooster sperm membrane glycoconjugates]]></article-title>
<source><![CDATA[Poultry Science]]></source>
<year>2011</year>
<volume>90</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>435-43</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Taku]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Masakazu]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Seiji]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A new method to extract sperm from spermatophores of the male spiny king crab P &#945;r&#945;lithodes brevipes (Anomura: lithodidae)]]></article-title>
<source><![CDATA[Crustacean Research]]></source>
<year>2004</year>
<numero>33</numero>
<issue>33</issue>
<page-range>10-4</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="">
<collab>IUCN the Red List of Threatened Species</collab>
<source><![CDATA[]]></source>
<year>2020</year>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Uribe]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
<name>
<surname><![CDATA[Mejía-Roa]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Testicular structure and germ cells morphology in salamanders]]></article-title>
<source><![CDATA[Spermatogenesis]]></source>
<year>2014</year>
<volume>4</volume>
</nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tietje]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Rödel]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluating the predicted extinction risk of living amphibian species with the fossil record]]></article-title>
<source><![CDATA[Ecology Letters]]></source>
<year>2018</year>
<volume>21</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1135-42</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
