A. Zangirolamo, N. C. D. Silva, I. Búfalo, M. Seneda
Dairy farming plays an important role in the socioeconomic scenario, and several characteristics point to an enormous potential for growth in the productivity of the herd. This is a complex activity that needs to be carried out efficiently in all the links that integrate it. Moreover, due to the physiological and metabolic aspects of the animals with the aptitude for the milk production, several challenges arise, especially in the reproductive scope. In this context, breeding biotechniques appear as a good alternative to the increase in reproductive rates and genetic improvement of dairy cattle. In addition, ovarian antral follicle counts (AFC) have been studied as a way to improve the selection of females to compose reproductive programs, because it has been shown to be a factor of high repeatability over the reproductive life in the same animal. Although studies have shown controversial results regarding the relationship between AFC and fertility, it is still necessary to investigate the possible variables that may interfere with the performance of donors in each biotechnology used. Thus, this review intends to gather and discuss the relationship of AFC with physiological aspects of dairy cows, its application as a parameter of selection of animals with good fertility and, the challenges for the application of reproductive biotechniques in dairy cattle.
{"title":"Challenges in biotechnology of reproduction in dairy cattle: the antral follicle counting as a fertility parameter","authors":"A. Zangirolamo, N. C. D. Silva, I. Búfalo, M. Seneda","doi":"10.18548/ASPE/0005.01","DOIUrl":"https://doi.org/10.18548/ASPE/0005.01","url":null,"abstract":"Dairy farming plays an important role in the socioeconomic scenario, and several characteristics point to an enormous potential for growth in the productivity of the herd. This is a complex activity that needs to be carried out efficiently in all the links that integrate it. Moreover, due to the physiological and metabolic aspects of the animals with the aptitude for the milk production, several challenges arise, especially in the reproductive scope. In this context, breeding biotechniques appear as a good alternative to the increase in reproductive rates and genetic improvement of dairy cattle. In addition, ovarian antral follicle counts (AFC) have been studied as a way to improve the selection of females to compose reproductive programs, because it has been shown to be a factor of high repeatability over the reproductive life in the same animal. Although studies have shown controversial results regarding the relationship between AFC and fertility, it is still necessary to investigate the possible variables that may interfere with the performance of donors in each biotechnology used. Thus, this review intends to gather and discuss the relationship of AFC with physiological aspects of dairy cows, its application as a parameter of selection of animals with good fertility and, the challenges for the application of reproductive biotechniques in dairy cattle.","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41334444","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}
J. Reátegui, S. Herrera, J. Boluarte, F. Fernández, V. Pacheco, S. Bernardi
{"title":"Comparación de tres técnicas en la preparación de nuestras para la cristalización del flujo cérvical en bovinos lecheros","authors":"J. Reátegui, S. Herrera, J. Boluarte, F. Fernández, V. Pacheco, S. Bernardi","doi":"10.18548/aspe/0005.11","DOIUrl":"https://doi.org/10.18548/aspe/0005.11","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68325184","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}
Mitochondria are powerhouse organelles involved in several vital functions in cells, mainly maintaining balance between ATP synthesis and oxidative stress during early development in mammalian embryos. It has been shown that impaired mitochondrial function in bovine model might reach failure in oocyte and embryo developmental competence. In this review, we analyse implications of mitochondrial role on successful early development through recent studies on bovine oocytes and embryos.
{"title":"Mitochondrial contributions to oocyte and embryonic quality in bovine","authors":"L. Baldoceda, C. Robert","doi":"10.18548/aspe/0005.05","DOIUrl":"https://doi.org/10.18548/aspe/0005.05","url":null,"abstract":"Mitochondria are powerhouse organelles involved in several vital functions in cells, mainly maintaining balance between ATP synthesis and oxidative stress during early development in mammalian embryos. It has been shown that impaired mitochondrial function in bovine model might reach failure in oocyte and embryo developmental competence. In this review, we analyse implications of mitochondrial role on successful early development through recent studies on bovine oocytes and embryos.","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45621686","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}
Carolina Griselda Luchetti, Elena Renoulin, D. Lombardo
Fil: Luchetti, Carolina Griselda. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Parque Centenario; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigacion y Tecnologia en Reproduccion Animal; Argentina
{"title":"Comparación entre inseminación artificial cervical y post-cervical porcina en nulíparas y multíparas","authors":"Carolina Griselda Luchetti, Elena Renoulin, D. Lombardo","doi":"10.18548/ASPE/0004.06","DOIUrl":"https://doi.org/10.18548/ASPE/0004.06","url":null,"abstract":"Fil: Luchetti, Carolina Griselda. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Parque Centenario; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigacion y Tecnologia en Reproduccion Animal; Argentina","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68324988","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}
Á. V. Alonso, C. Castex, M. Pinto, M. Caldevilla, A. Ferrante, M. Miragaya
{"title":"Uso de semen congelado en programas de inseminación artificial en equinos","authors":"Á. V. Alonso, C. Castex, M. Pinto, M. Caldevilla, A. Ferrante, M. Miragaya","doi":"10.18548/ASPE/0004.04","DOIUrl":"https://doi.org/10.18548/ASPE/0004.04","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68324489","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}
Chromosome abnormalities are extremely common in human oocytes and embryos and are associated with a variety of negative outcomes for both natural cycles and those using assisted reproduction techniques. Aneuploidies embryos may fail to implant in the uterus, miscarry, or lead to children with serious medical problems (e.g., Down syndrome). Preimplantation genetic diagnosis (PGD) is a technique that allows the detection of aneuploidy in embryos and seeks to improve the clinical outcomes od assisted reproduction treatments, by ensuring that the embryos chosen for the transfer are chromosomally normal.
{"title":"Impacto del diagnóstico genético preimplantacional en embriones humanos","authors":"Javier García-Ferreyra","doi":"10.18548/aspe/0004.02","DOIUrl":"https://doi.org/10.18548/aspe/0004.02","url":null,"abstract":"Chromosome abnormalities are extremely common in human oocytes and embryos and are associated with a variety of negative outcomes for both natural cycles and those using assisted reproduction techniques. Aneuploidies embryos may fail to implant in the uterus, miscarry, or lead to children with serious medical problems (e.g., Down syndrome). Preimplantation genetic diagnosis (PGD) is a technique that allows the detection of aneuploidy in embryos and seeks to improve the clinical outcomes od assisted reproduction treatments, by ensuring that the embryos chosen for the transfer are chromosomally normal.","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68324281","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}
D. Yáñez, I. Barbona, J. López, J. Moyan, Roberto Quinteros, J. Tonato, S. Bernardi, P. Marini
{"title":"Posibles factores que afectan la tasa de gestación de vacas en la amazonia ecuatoriana","authors":"D. Yáñez, I. Barbona, J. López, J. Moyan, Roberto Quinteros, J. Tonato, S. Bernardi, P. Marini","doi":"10.18548/aspe/0004.12","DOIUrl":"https://doi.org/10.18548/aspe/0004.12","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68324939","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":"Relación entre características físicas y contenido iónico del moco cervical con el estado de preñez al inseminar vaquillonas a celo detectado s","authors":"Savia Cl, J. Reátegui, Marini Pr, Bernardi Sf","doi":"10.18548/ASPE/0004.14","DOIUrl":"https://doi.org/10.18548/ASPE/0004.14","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68325041","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":"Factores que afectan el desarrollo de la fecundación in vitro en camélidos","authors":"V. Trasorras, M. Miragaya","doi":"10.18548/aspe/0004.03","DOIUrl":"https://doi.org/10.18548/aspe/0004.03","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68324345","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 L-carnitina y piruvato en espermatozoides equinos conservados a 5 ºc y 15 ºc por 24 horas: resultados preliminares","authors":"G. Ávila, A. Ferrante, M. Miragaya, D. Neild","doi":"10.18548/aspe/0004.07","DOIUrl":"https://doi.org/10.18548/aspe/0004.07","url":null,"abstract":"","PeriodicalId":36778,"journal":{"name":"Spermova","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68324736","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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