Pub Date : 1900-01-01DOI: 10.21451/1809-3000.rbra2022.016
Guilherme Rizzoto, Abdallah Mohamed Shahat, John Patrick Kastelic, J. Ferreira
{"title":"Atualizac¸a~o sobre o estresse te´rmico testicular","authors":"Guilherme Rizzoto, Abdallah Mohamed Shahat, John Patrick Kastelic, J. Ferreira","doi":"10.21451/1809-3000.rbra2022.016","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2022.016","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121412708","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}
Pub Date : 1900-01-01DOI: 10.21451/1809-3000.rbra2021.083
P. S. Baruselli, Laís Ângelo de Abreu, Bruna Lima Chechin Catussi, Guilherme Felipe Ferreira dos Santos, Luana Factor, Augusto Rodrigues Felisbino, Fábio Girardi Frigoni, G. Crepaldi
The cow-calf operation system is one is one of the main sectors of beef production, with direct impacts on land occupation (70% of pastures are occupied by the cow-calf operation system) and on the productivity of the meat chain. The number and the weight of calves produced per cow and the age of the heifer at first calving directly impact the efficiency of the sector. Reproductive biotechnologies, with emphasis on fixed-time artificial insemination (FTAI), have significantly contributed to the development of an efficient and sustainable production system. In 2020, 23.7 million doses of semen and 21.3 million FTAI protocols were marketed in Brazil (90% of inseminations were performed by FTAI). In 2002, only 100,000 FTAI procedures were used (a 213-fold increase in 19 years), which represented only 1% of the inseminations performed. During this same period (2002 to 2020), Brazil went from 5% to 20% of inseminated cow and heifers (increase of 400%). FTAI programs provide an organized and practical approach to the use of AI, as well as improve the reproductive, genetic and productive efficiency of the herds. The use of the FTAI anticipates the conception of cows in the breeding season and the age of the first conception of heifers, significantly increasing the reproductive and productive efficiency and the economic return of livestock. Recent studies have shown that breeding systems that use FTAI present a reduction of 37.7% in the emission of CO2 equivalents (it produces more calves of genetic quality with fewer dams than natural service), collaborating and with the sustainability of livestock. It is also evident Baruselli et al. Mitos e realidades sobre a inseminação artificial em tempo fixo (IATF) em bovinos de
{"title":"Mitos e realidades sobre a inseminação artificial em tempo fixo (IATF) em bovinos de corte","authors":"P. S. Baruselli, Laís Ângelo de Abreu, Bruna Lima Chechin Catussi, Guilherme Felipe Ferreira dos Santos, Luana Factor, Augusto Rodrigues Felisbino, Fábio Girardi Frigoni, G. Crepaldi","doi":"10.21451/1809-3000.rbra2021.083","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.083","url":null,"abstract":"The cow-calf operation system is one is one of the main sectors of beef production, with direct impacts on land occupation (70% of pastures are occupied by the cow-calf operation system) and on the productivity of the meat chain. The number and the weight of calves produced per cow and the age of the heifer at first calving directly impact the efficiency of the sector. Reproductive biotechnologies, with emphasis on fixed-time artificial insemination (FTAI), have significantly contributed to the development of an efficient and sustainable production system. In 2020, 23.7 million doses of semen and 21.3 million FTAI protocols were marketed in Brazil (90% of inseminations were performed by FTAI). In 2002, only 100,000 FTAI procedures were used (a 213-fold increase in 19 years), which represented only 1% of the inseminations performed. During this same period (2002 to 2020), Brazil went from 5% to 20% of inseminated cow and heifers (increase of 400%). FTAI programs provide an organized and practical approach to the use of AI, as well as improve the reproductive, genetic and productive efficiency of the herds. The use of the FTAI anticipates the conception of cows in the breeding season and the age of the first conception of heifers, significantly increasing the reproductive and productive efficiency and the economic return of livestock. Recent studies have shown that breeding systems that use FTAI present a reduction of 37.7% in the emission of CO2 equivalents (it produces more calves of genetic quality with fewer dams than natural service), collaborating and with the sustainability of livestock. It is also evident Baruselli et al. Mitos e realidades sobre a inseminação artificial em tempo fixo (IATF) em bovinos de","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128713610","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}
Pub Date : 1900-01-01DOI: 10.21451/1809-3000.rbra2021.063
Fernanda Maria de Carvalho
{"title":"A interface entre a saúde humana e a reprodução assistida em primatas não-humanos","authors":"Fernanda Maria de Carvalho","doi":"10.21451/1809-3000.rbra2021.063","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.063","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116875593","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}
Pub Date : 1900-01-01DOI: 10.21451/1809-3000.rbra2022.021
B. Q. Pinheiro, Isaac Neto Goes da Silva, A. Faustino, Luanna Maria Rocha Caldas da Silva
Female canine mammary neoplasms (CMNs) are the most frequent neoplasm in bitches, and a variety of techniques have been used to identify they prognostic factors. Among the possibilities, the serum biomarkers cancer antigen (CA 15-3) and carcinoembryonic antigen (CEA) are the most reliable. Neoplastic biomarkers are substances present in the neoplasia, blood, or other biological products, produced mainly by the neoplasia
{"title":"The prognostic value of serum neoplastic biomarkers CA 15-3 and CEA in canine mammary neoplasms: a review","authors":"B. Q. Pinheiro, Isaac Neto Goes da Silva, A. Faustino, Luanna Maria Rocha Caldas da Silva","doi":"10.21451/1809-3000.rbra2022.021","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2022.021","url":null,"abstract":"Female canine mammary neoplasms (CMNs) are the most frequent neoplasm in bitches, and a variety of techniques have been used to identify they prognostic factors. Among the possibilities, the serum biomarkers cancer antigen (CA 15-3) and carcinoembryonic antigen (CEA) are the most reliable. Neoplastic biomarkers are substances present in the neoplasia, blood, or other biological products, produced mainly by the neoplasia","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116879099","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}
Pub Date : 1900-01-01DOI: 10.21451/1809-3000.rbra2022.009
J. R. Potiens
{"title":"Análises computadorizadas da motilidade espermática (CASA): conceitos e possibilidades de padrões","authors":"J. R. Potiens","doi":"10.21451/1809-3000.rbra2022.009","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2022.009","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124901477","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}
Pub Date : 1900-01-01DOI: 10.21451/1809-3000.rbra2021.056
Diego Fernando Dubeibe Marín
{"title":"Desafios técnicos e biológicos na produção in vitro de embriões de búfalo","authors":"Diego Fernando Dubeibe Marín","doi":"10.21451/1809-3000.rbra2021.056","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.056","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121571011","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}
Pub Date : 1900-01-01DOI: 10.21451/1809-3000.rbra2021.034
Pedro Nacib Jorge, A. S. Traldi, Letícia Alecho Requena, T. D. Souza, A. C. Csermak, Cristiane Schilbach Pizzutto, G. R. Araújo, Thiago Cavalheri Luczinski, Hernan Baldassarre
{"title":"O que já sabemos sobre a reprodução de fêmeas de grandes felídeos?","authors":"Pedro Nacib Jorge, A. S. Traldi, Letícia Alecho Requena, T. D. Souza, A. C. Csermak, Cristiane Schilbach Pizzutto, G. R. Araújo, Thiago Cavalheri Luczinski, Hernan Baldassarre","doi":"10.21451/1809-3000.rbra2021.034","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.034","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123555287","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}
Pub Date : 1900-01-01DOI: 10.21451/1809-3000.rbra2021.021
Matheus Schardong Lucca, Laura dos Santos, Mayara de Souza Costa Tamanini, A. P. Mellagi, Fernando Pandolfo Bortolozzo
{"title":"Desafios e estratégias para identificação de machos subférteis em rebanhos suínos","authors":"Matheus Schardong Lucca, Laura dos Santos, Mayara de Souza Costa Tamanini, A. P. Mellagi, Fernando Pandolfo Bortolozzo","doi":"10.21451/1809-3000.rbra2021.021","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.021","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131482333","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}
Pub Date : 1900-01-01DOI: 10.21451/1809-3000.rbra2022.018
Marcelo De Carvalho Santos
{"title":"Nutracêuticos na reprodução de padreadores caninos e felinos","authors":"Marcelo De Carvalho Santos","doi":"10.21451/1809-3000.rbra2022.018","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2022.018","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123116104","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}
Pub Date : 1900-01-01DOI: 10.21451/1809-3000.rbra2022.033
M. R. Luz
O controle da função luteal é realizado por um balanço de fatores luteotróficos e luteolíticos, e nenhuma luteolisina de origem uterina está envolvida na regulação do corpo lúteo cíclico canino. Todavia, ao final da gestação, um pico de PGFM reflete a síntese e secreção de PGF2α envolvida na luteólise pré-parto. Em cadelas, a prolactina e o LH, mas também a PGE2, P4 e E2, e possivelmente citocinas e fatores de crescimento agem como fatores autócrinos e parácrinos para regular a função luteal. O hipoluteoidismo é definido como uma diminuição precoce da secreção de progesterona, com concentração insuficiente para a manutenção da gestação, causando perdas gestacionais. Entretanto, o valor de corte da concentração de progesterona para o diagnóstico ainda é controverso. A suplementação exógena com progestágenos é eficaz em manter a gestação, mas nas fases iniciais da gestação pode causar efeitos teratogênicos nos fetos.
{"title":"Função luteal e hipoluteoidismo em cadelas","authors":"M. R. Luz","doi":"10.21451/1809-3000.rbra2022.033","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2022.033","url":null,"abstract":"O controle da função luteal é realizado por um balanço de fatores luteotróficos e luteolíticos, e nenhuma luteolisina de origem uterina está envolvida na regulação do corpo lúteo cíclico canino. Todavia, ao final da gestação, um pico de PGFM reflete a síntese e secreção de PGF2α envolvida na luteólise pré-parto. Em cadelas, a prolactina e o LH, mas também a PGE2, P4 e E2, e possivelmente citocinas e fatores de crescimento agem como fatores autócrinos e parácrinos para regular a função luteal. O hipoluteoidismo é definido como uma diminuição precoce da secreção de progesterona, com concentração insuficiente para a manutenção da gestação, causando perdas gestacionais. Entretanto, o valor de corte da concentração de progesterona para o diagnóstico ainda é controverso. A suplementação exógena com progestágenos é eficaz em manter a gestação, mas nas fases iniciais da gestação pode causar efeitos teratogênicos nos fetos.","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132598718","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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