Navegação Artigos de Periódicos por Assunto "Ovulação"

Resultados 1-8 de 8

    • Dinâmica folicular de vacas de corte tratadas com três protocolos de sincronização da ovulação =Ovarian follicular dynamics in beef cows treated with three protocols of synchronization of ovulation 

      Melo, Luciano Cavalheiro; Beskow, Andrei; Silva, Bruna Velho Costa e; Evangelista, Gustavo Tagliari; Gregory, Joana; Marques, Pablo Rocha; Jobim, Maria Ines Mascarenhas; Mattos, Rodrigo Costa; Gregory, Ricardo Macedo (2010) [Artigo de periódico]
      Background: Artificial insemination is an established and viable technique to accelerate the genetic advancement and economic return of the cattle. However, compromises the efficiency of detection of estrus results in low ...

    • Does GnRH treatment at TAI regardless of estrus occurrence increase pregnancy rate in crossbred Bos taurus suckled cows? 

      Fernandes, Vanessa Silva; Velho, Gabriella dos Santos; Santos, Mateus Felipe Osório dos; Evangelista, Kelly Alves; Gasperin, Bernardo Garziera; Pfeifer, Luiz Francisco Machado; Ferreira, Rogério; Goncalves, Paulo Bayard Dias; Gastal, Gustavo Desire Antunes; Dalto, André Gustavo Cabrera; Rovani, Monique Tomazele (2024) [Artigo de periódico]
      The impact of GnRH treatment on the day of TAI in beef cows has received limited investigation, especially concerning its association with estrus expression. Consequently, two experiments were conducted to assess the ...

    • Histomorphometric and vascular changes in equine endometrium after the infusion of conceptus fragments 

      Camacho Rozo, Cesar Augusto; Estradé, María José; Cazales Penino, Nicolas; Caballeros Haeussler, Jorge Emilio; Rechsteiner, Sandra Mara da Encarnação Fiala; Neves, Adriana Pires; Mattos, Rodrigo Costa (2020) [Artigo de periódico]
      This experiment aimed to verify if the proteins present in a 13th day conceptus induce changes in the equine endometrial ultra-structure, histology, and vascularization, two days after its infusion. Ten healthy cyclic mares ...

    • Influência da estimulação do crescimento folicular na fertilidade de vacas de corte tratadas com eCG ou FSH em protocolos de IATF 

      Thedy, Diego Xavier; Berlitz, Carolina Gabriela Becker; Oliveira, Carolina Rodrigues de; Luiz, Débora Schneid Vaz; Velho, Gabriella dos Santos; Dalto, André Gustavo Cabrera; Borges, Joao Batista Souza (2018) [Artigo de periódico]
      Background: The pregnancy rate in fixed-time insemination (FTAI) programs in beef cattle is affected by several factors, including the size of ovulatory follicle (OF). Induced ovulation of small OF (≤11 mm) reduces the ...

    • Local regulation of antral follicle development and ovulation in monovulatory species 

      Moraes, Fabiane Pereira de; Missio, Daniele; Lazzari, Jéssica; Rovani, Monique Tomazele; Ferreira, Rogério; Goncalves, Paulo Bayard Dias; Gasperin, Bernardo Garziera (2022) [Artigo de periódico]
      The identification of mutations in the genes encoding bone morphogenetic protein 15 (BMP15) and growth and differentiation factor 9 (GDF9) associated with phenotypes of sterility or increased ovulation rate in sheep aroused ...

    • Oocyte quality of tambaqui (Colossoma macropomum) during the reproductive season 

      Galo, Juliana Minardi; Ribeiro, Ricardo Pereira; Streit Júnior, Danilo Pedro; Albuquerque, Daniele Menezes; Fornari, Darci Carlos; Roma, C.F.C.; Guerreiro, Luis Ricardo Jayme (2015) [Artigo de periódico]
      The study aimed to analyze the Colossoma macropomum reproductive behavior and quality of the female gametes throughout the reproductive season. The experiment was carried out in Pimenta Bueno - Rondônia State (Northern ...

    • Porcine luteinising hormone given at oestrus onset by intramuscular route does not advance ovulation in gilts 

      Ulguim, Rafael da Rosa; Sbardella, Pedro Ernesto; Fontana, Diogo Luiz; Moroni, Júlia Linck; Pommerehn, Luíza; Bernardi, Mari Lourdes; Wentz, Ivo; Bortolozzo, Fernando Pandolfo (2015) [Artigo de periódico]
      Este estudo teve como objetivo avaliar o uso do hormônio luteizante suíno (pLH) aplicado no início do estro em leitoas para sincronização da ovulação. Um total de 120 leitoas (40/tratamento) foram distribuídas em três ...

    • Uterine infusion of conceptus fragments changes the protein profile from cyclic mares 

      Camacho Rozo, Cesar Augusto; Santos, Gabriel de Oliveira; Caballeros Haeussler, Jorge Emilio; Cazales Penino, Nicolas; Ramírez López, Camilo José; Vidigal, Pedro Marcus Pereira; Ramos, Humberto Josué de Oliveira; Barros, Edvaldo; Mattos, Rodrigo Costa (2020) [Artigo de periódico]
      This experiment aimed to compare at day seven after ovulation, the protein profile of uterine fluid in cyclic mares with mares infused two days before with Day 13 conceptus fragments. Experimental animals were ten healthy ...