Pub Date : 1900-01-01DOI: 10.21451/1809-3000.rbra2022.025
Marcelo Martinez Barbitta
Although reproduction in small animals is relatively current, its objectives are very varied. Initially they were used as a study model in physiology and various pathologies. In the same way, many small animals are produced as food and finally, in the last 20 years, the importance of pets and the intensification in the selection of canine and feline breeds, has caused an important impulse in the development of new scientific information. Although currently technical resources have advanced substantially, there are still many basic and important issues that have not yet been elucidated by formal science. Global threats facing wild species include the consequences of climate change, population growth, urbanization, air and water pollution
{"title":"Importance of the study of reproduction in small animals and preservation of species","authors":"Marcelo Martinez Barbitta","doi":"10.21451/1809-3000.rbra2022.025","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2022.025","url":null,"abstract":"Although reproduction in small animals is relatively current, its objectives are very varied. Initially they were used as a study model in physiology and various pathologies. In the same way, many small animals are produced as food and finally, in the last 20 years, the importance of pets and the intensification in the selection of canine and feline breeds, has caused an important impulse in the development of new scientific information. Although currently technical resources have advanced substantially, there are still many basic and important issues that have not yet been elucidated by formal science. Global threats facing wild species include the consequences of climate change, population growth, urbanization, air and water pollution","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"72 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":"124541767","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.rbra2021.085
M. T. Moura, C. D. Carvalho, Fabíola Freitas de Paula Lopes
{"title":"Resposta oocita´ria ao estresse te´rmico: efeitos moleculares e na cinética do desenvolvimento embrionário","authors":"M. T. Moura, C. D. Carvalho, Fabíola Freitas de Paula Lopes","doi":"10.21451/1809-3000.rbra2021.085","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.085","url":null,"abstract":"","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":"115954574","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.rbra2021.035
Yamê Fabres Robaina Sancler da Silva
{"title":"Atualidades na abordagem da degeneração testicular em garanhões","authors":"Yamê Fabres Robaina Sancler da Silva","doi":"10.21451/1809-3000.rbra2021.035","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.035","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"30 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":"116033665","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.rbra2021.076
André Maciel Crespilho
{"title":"Produção de Sêmen em Regime de Central Muito além do espermograma","authors":"André Maciel Crespilho","doi":"10.21451/1809-3000.rbra2021.076","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.076","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"36 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":"122320993","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.rbra2022.012
Y. Sancler-Silva
{"title":"Avaliação andrológica no garanhão: ênfase no exame interno do sistema genital","authors":"Y. Sancler-Silva","doi":"10.21451/1809-3000.rbra2022.012","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2022.012","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"14 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":"127897683","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.rbra2021.040
J. F. Fonseca, G. Vergani, L. Côrtes, J. Rodrigues, L. Siqueira, Joanna Maria Gonçalves Souza Fabjan, M. E. F. Oliveira
The identification of ovarian follicular waves and associated hormonal milieux has revealed that dominant follicles of the ovulatory wave (OWDF) grow in a hormonal environment where there is an increasing predominance of estradiol, unlike first-wave dominant follicles (FWDF) and intermediatewave dominant follicles (IWDF), which grow under increasing progesterone (P4) concentrations. The luteinizing hormone (LH) is considered the decisive gonadotropic hormone to direct whether a dominant follicle will (↑ LH) or will not (↓ LH) ovulate. Based on this, strategies have been developed to either increase endogenous LH (GnRH administration) or provide exogenous LH of porcine origin (pLH) or LH-like gonadotropins, such as human chorionic gonadotropin (hCG). Such strategies are able to provide LH for final maturation, ovulation, and/or luteinization of the FWDF or IWDF, forming accessory corpora lutea (aCL). As a consequence, P4 increases and favors the establishment of pregnancy, particularly when P4 is the limiting factor for the success of the conceptus implantation and maintenance. In sheep and goats, previous studies have administered hCG five to seven days after the onset of estrus and revealed that FWDF positively respond to hCG administration by either forming aCLs and/or Fonseca et al. Induction of accessory corpus luteum in goats and sheep: From physiological basis to reproductive effects. Rev Bras Reprod Anim, v.45, n.4, p.309-317, out./dez. 2021 310 promoting hypertrofia of the original CL which, in turn, increases its luteal tissue area. Normally, P4 synthesis increases along with the increase in luteal tissue area. As a final and most desirable outcome, pregnancy and the birth of lambs/kids also increase. These concepts will be discussed in this review, focusing on aCL induction in sheep and goats.
{"title":"Induction of accessory corpus luteum in goats and sheep: From physiological basis to reproductive effects","authors":"J. F. Fonseca, G. Vergani, L. Côrtes, J. Rodrigues, L. Siqueira, Joanna Maria Gonçalves Souza Fabjan, M. E. F. Oliveira","doi":"10.21451/1809-3000.rbra2021.040","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.040","url":null,"abstract":"The identification of ovarian follicular waves and associated hormonal milieux has revealed that dominant follicles of the ovulatory wave (OWDF) grow in a hormonal environment where there is an increasing predominance of estradiol, unlike first-wave dominant follicles (FWDF) and intermediatewave dominant follicles (IWDF), which grow under increasing progesterone (P4) concentrations. The luteinizing hormone (LH) is considered the decisive gonadotropic hormone to direct whether a dominant follicle will (↑ LH) or will not (↓ LH) ovulate. Based on this, strategies have been developed to either increase endogenous LH (GnRH administration) or provide exogenous LH of porcine origin (pLH) or LH-like gonadotropins, such as human chorionic gonadotropin (hCG). Such strategies are able to provide LH for final maturation, ovulation, and/or luteinization of the FWDF or IWDF, forming accessory corpora lutea (aCL). As a consequence, P4 increases and favors the establishment of pregnancy, particularly when P4 is the limiting factor for the success of the conceptus implantation and maintenance. In sheep and goats, previous studies have administered hCG five to seven days after the onset of estrus and revealed that FWDF positively respond to hCG administration by either forming aCLs and/or Fonseca et al. Induction of accessory corpus luteum in goats and sheep: From physiological basis to reproductive effects. Rev Bras Reprod Anim, v.45, n.4, p.309-317, out./dez. 2021 310 promoting hypertrofia of the original CL which, in turn, increases its luteal tissue area. Normally, P4 synthesis increases along with the increase in luteal tissue area. As a final and most desirable outcome, pregnancy and the birth of lambs/kids also increase. These concepts will be discussed in this review, focusing on aCL induction in sheep and goats.","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"27 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":"133241479","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.rbra2021.051
A. Paschoal, Alana Birck Ribeiro, A. P. Mellagi, Fernando Pandolfo Bortolozzo
{"title":"Armazenamento de sêmen suíno a 5°C Quais são os desafios?","authors":"A. Paschoal, Alana Birck Ribeiro, A. P. Mellagi, Fernando Pandolfo Bortolozzo","doi":"10.21451/1809-3000.rbra2021.051","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.051","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"110 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113944614","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.rbra2021.068
Yatta Linhares Boakari, Barry Ball, Hossam El-Sheikh Ali, Pouya Dini, Shavahn Loux, C. B. Fernandes, Alejandro Esteller Vico, Kirsten Scoggin, Laurie Lawrence
{"title":"Efeitos de concentrações sistêmicas elevadas de ureia no transcriptoma do endométrio e embriões de éguas","authors":"Yatta Linhares Boakari, Barry Ball, Hossam El-Sheikh Ali, Pouya Dini, Shavahn Loux, C. B. Fernandes, Alejandro Esteller Vico, Kirsten Scoggin, Laurie Lawrence","doi":"10.21451/1809-3000.rbra2021.068","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.068","url":null,"abstract":"","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"44 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":"123868600","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.rbra2021.010
Antonio de Brito Silva, Laís Barbosa Freire, Wisley da Silva Moraes, Illanna de Souza Lima Brandão, Tuane Nunes Batista, M. Mendona, Elysiane Ramos Garcia Silva, G. F. Carneiro
The objective of this study was to evaluate the main microorganisms isolated from the uterus of subfertile mares and the resistance profile to antimicrobial agents in vitro of the bacteria. Samples were collected from 41 mares with a history of subfertility. For bacterial culture the samples were stored in tubes containing BHI broth and for fungal culture containing 0.9% NaCl solution and sent to LABRAPE-UFRPE. The isolated bacteria were subjected to the in vitro sensitivity test for Amikacin, Gentamicin, Enrofloxacin, Azithromycin, Ceftriaxone, Tetracycline, Penicillin and Ampicillin. 75.6% of the samples presented microbiological isolation, being 25.8% Staphylococcus spp.; 12.9% nonlactose-fermenting Gram-negative bacilli; 3.22% β-hemolytic streptococcus; 3.22% E. coli; 3.22% Klebsiella spp. and 3.22% Proteus spp.; 22.6% Bacillus spp. and 6.45% Micrococcus spp. Among the isolated samples for fungi 6.45% were Cladosporium spp. It was observed that 12.9% of the animals had mixed infection. 95.23% of the bacteria were sensitive to Amikacin; 90.47% for Gentamicin, Enrofloxacin, Tetracycline and Ceftriaxone and 80.95% for Azithromycin. Penicillin showed 95.24% of resistant samples, with 100% of Gram-negative bacteria and 70% for Ampicillin. Bacterial endometritis was the most prevalent. The presence of fungal infection reinforces the ability of these microorganisms to develop endometritis. Macrolides were effective and β-Lactamics were not viable against Gram-negative bacteria.
{"title":"Perfil microbiológico e de resistência antimicrobiana in vitro de bactérias isoladas do útero de éguas subférteis","authors":"Antonio de Brito Silva, Laís Barbosa Freire, Wisley da Silva Moraes, Illanna de Souza Lima Brandão, Tuane Nunes Batista, M. Mendona, Elysiane Ramos Garcia Silva, G. F. Carneiro","doi":"10.21451/1809-3000.rbra2021.010","DOIUrl":"https://doi.org/10.21451/1809-3000.rbra2021.010","url":null,"abstract":"The objective of this study was to evaluate the main microorganisms isolated from the uterus of subfertile mares and the resistance profile to antimicrobial agents in vitro of the bacteria. Samples were collected from 41 mares with a history of subfertility. For bacterial culture the samples were stored in tubes containing BHI broth and for fungal culture containing 0.9% NaCl solution and sent to LABRAPE-UFRPE. The isolated bacteria were subjected to the in vitro sensitivity test for Amikacin, Gentamicin, Enrofloxacin, Azithromycin, Ceftriaxone, Tetracycline, Penicillin and Ampicillin. 75.6% of the samples presented microbiological isolation, being 25.8% Staphylococcus spp.; 12.9% nonlactose-fermenting Gram-negative bacilli; 3.22% β-hemolytic streptococcus; 3.22% E. coli; 3.22% Klebsiella spp. and 3.22% Proteus spp.; 22.6% Bacillus spp. and 6.45% Micrococcus spp. Among the isolated samples for fungi 6.45% were Cladosporium spp. It was observed that 12.9% of the animals had mixed infection. 95.23% of the bacteria were sensitive to Amikacin; 90.47% for Gentamicin, Enrofloxacin, Tetracycline and Ceftriaxone and 80.95% for Azithromycin. Penicillin showed 95.24% of resistant samples, with 100% of Gram-negative bacteria and 70% for Ampicillin. Bacterial endometritis was the most prevalent. The presence of fungal infection reinforces the ability of these microorganisms to develop endometritis. Macrolides were effective and β-Lactamics were not viable against Gram-negative bacteria.","PeriodicalId":153636,"journal":{"name":"Revista Brasileira de Reprodução Animal","volume":"13 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":"123872461","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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