{"title":"LA ESTACIONALIDAD REPRODUCTIVA Y PRODUCTIVA DE LOS CAPRINOS SE MODIFICA CON EL USO DEL FOTOPERIODO Y LAS INTERACCIONES SOCIO-SEXUALES","authors":"J. Delgadillo","doi":"10.18548/aspe/0006.02","DOIUrl":"https://doi.org/10.18548/aspe/0006.02","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42432009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Neto, L. Requena, C. S. Pizzutto, H. Baldassarre
Laparoscopic Ovum Pick-Up (LOPU) is the most reliable and efficient technique for collecting high quality oocytes from live animals in certain species or age groups, allowing its use for In Vitro Embryo Production (IVEP) and Somatic Cell Nuclear Transfer (SCNT). In order to maximize the number and quality of oocytes collected by donor, it is necessary to synchronize estrus and stimulate follicular growth using hormonal protocols that vary according to species. There are 2 big categories of applications for the LOPU-IVEP technology in production animals, those in which it acts as an alternative to MOET (competitive applications) and those in which it doesn’t compete with MOET as it cannot be done in those categories (non competitive applications). In wild animals, LOPU can play an important role in conservation programs for endangered species when associated with effective IVEP and has been done in several species. It has commercial application in sheep, goats, cattle and buffaloes calves. Repeating LOPU procedures in the same female does not cause sequels with impact on the female's reproductive life, even when performed on prepubertal or wild animals.
{"title":"LAPAROSCOPIC OVUM PICK-UP (LOPU): FROM ANIMAL PRODUCTION TO CONSERVATION","authors":"P. Neto, L. Requena, C. S. Pizzutto, H. Baldassarre","doi":"10.18548/ASPE/0006.07","DOIUrl":"https://doi.org/10.18548/ASPE/0006.07","url":null,"abstract":"Laparoscopic Ovum Pick-Up (LOPU) is the most reliable and efficient technique for collecting high quality oocytes from live animals in certain species or age groups, allowing its use for In Vitro Embryo Production (IVEP) and Somatic Cell Nuclear Transfer (SCNT). In order to maximize the number and quality of oocytes collected by donor, it is necessary to synchronize estrus and stimulate follicular growth using hormonal protocols that vary according to species. There are 2 big categories of applications for the LOPU-IVEP technology in production animals, those in which it acts as an alternative to MOET (competitive applications) and those in which it doesn’t compete with MOET as it cannot be done in those categories (non competitive applications). In wild animals, LOPU can play an important role in conservation programs for endangered species when associated with effective IVEP and has been done in several species. It has commercial application in sheep, goats, cattle and buffaloes calves. Repeating LOPU procedures in the same female does not cause sequels with impact on the female's reproductive life, even when performed on prepubertal or wild animals.","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45876744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Trastornos uterinos en la yegua: Diagnóstico, tratamiento y prevención","authors":"A. Tibary, A. Ruiz","doi":"10.18548/aspe/0006.01","DOIUrl":"https://doi.org/10.18548/aspe/0006.01","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68325300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ASPRA-VII Congress","authors":"Cuscó, Peru., September to th","doi":"10.18548/ASPE/0006.08","DOIUrl":"https://doi.org/10.18548/ASPE/0006.08","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41718492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"INVESTIGATION OF MALE INFERTILITY IN LLAMAS AND ALPACAS","authors":"A. Tibary, A. Ruiz","doi":"10.18548/aspe/0006.04","DOIUrl":"https://doi.org/10.18548/aspe/0006.04","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44893931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maternal recognition of pregnancy (MRP) is a biological process that allows a female to recognize the presence of a conceptus and sustain the lifespan of the corpus luteum (CL). In-depth studies on MRP have been sparked by the impact of early pregnancy loss on productivity in various large animal domestic species. Reproductive studies in camelids are limited and our knowledge of MRP in this species has lagged behind compared to other domestic species. MRP in camelids seems to be driven primarily by estrogen secretion from the hatched blastocyst and possibly other mechanisms related to elongation. The presence of the conceptus blocks the induction of endometrial COX-2 expression resulting in attenuation of PGF2α and rescue of the CL. A substance such as IFNτ has not been identified in camelids. Oxytocin does not appear to play a major contributing role in this process. Embryos migrate to the left uterine horn in order for luteal function to be maintained. Studies thus far have not shown a difference between the left and right uterine horn related to histological changes and estrogen receptor expression. More recently investigation of expression levels of genes previously identified as conceptus regulated genes in the endometrium of other domestic animals has been evaluated in camels. The objectives of the current review are to present the current state of our knowledge on MRP in camelids and discuss early embryonic development in this species and how it may relate to MRP.
{"title":"EARLY EMBRYONIC DEVELOPMENT AND MATERNAL RECOGNITION OF PREGNANCY IN CAMELIDS: A REVIEW","authors":"A. Campbell, M. Ciccarelli, A. Tibary","doi":"10.18548/ASPE/0005.13","DOIUrl":"https://doi.org/10.18548/ASPE/0005.13","url":null,"abstract":"Maternal recognition of pregnancy (MRP) is a biological process that allows a female to recognize the presence of a conceptus and sustain the lifespan of the corpus luteum (CL). In-depth studies on MRP have been sparked by the impact of early pregnancy loss on productivity in various large animal domestic species. Reproductive studies in camelids are limited and our knowledge of MRP in this species has lagged behind compared to other domestic species. MRP in camelids seems to be driven primarily by estrogen secretion from the hatched blastocyst and possibly other mechanisms related to elongation. The presence of the conceptus blocks the induction of endometrial COX-2 expression resulting in attenuation of PGF2α and rescue of the CL. A substance such as IFNτ has not been identified in camelids. Oxytocin does not appear to play a major contributing role in this process. Embryos migrate to the left uterine horn in order for luteal function to be maintained. Studies thus far have not shown a difference between the left and right uterine horn related to histological changes and estrogen receptor expression. More recently investigation of expression levels of genes previously identified as conceptus regulated genes in the endometrium of other domestic animals has been evaluated in camels. The objectives of the current review are to present the current state of our knowledge on MRP in camelids and discuss early embryonic development in this species and how it may relate to MRP.","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43114210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"AVANCES EN INSEMINACIÓN ARTIFICIAL EN CANINOS","authors":"María Alejandra Stornelli","doi":"10.18548/ASPE/0005.14","DOIUrl":"https://doi.org/10.18548/ASPE/0005.14","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43443188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"CURRENT STATUS, EMERGING TECHNOLOGIES, AND TRENDS IN VETERINARY ULTRASONOGRAPHY APPLIED TO CATTLE REPRODUCTION","authors":"J. Viana, L. Siqueira","doi":"10.18548/ASPE/0005.15","DOIUrl":"https://doi.org/10.18548/ASPE/0005.15","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44800586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EFECTO DEL FLUIDO FOLICULAR SOBRE LA CAPACIDAD DE UNIÓN A ZONA PELÚCIDA DE ESPERMATOZOIDES EPIDIDIMARIOS DE ALPACA (Vicugna pacos)","authors":"Bravo Zeze, B. Ruben, M. Valdivia","doi":"10.18548/aspe/0005.18","DOIUrl":"https://doi.org/10.18548/aspe/0005.18","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47842439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EFECTO DE LA CRIOPRESERVACIÓN EN LA MORFOMETRÍA DEL ESPERMATOZOIDE DE ALPACA","authors":"Ruth Ccalta, César Ordóñez, E. Ampuero, H. Cucho","doi":"10.18548/aspe/0005.17","DOIUrl":"https://doi.org/10.18548/aspe/0005.17","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48247783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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