RESPOSTA A PROTOCOLO DE ESTIMULAÇÃO EM NOVILHAS GIROLANDO: relato de Caso
RESPOSTA A PROTOCOLO DE ESTIMULAÇÃO EM NOVILHAS GIROLANDO: relato de Caso
-
DOI: https://doi.org/10.22533/at.ed.046112427094
-
Palavras-chave: TETF; Corpo lúteo cavitário; novilhas girolando
-
Keywords: TETF; cavitary corpus luteum; heifers
-
Abstract: The search for effective methods in bovine reproduction is a constant in livestock farming, aiming to optimize the production of genetically superior animals. This work was carried out on a property in the municipality of Itaperuna, RJ, focusing on relating the incidence of cavitary corpora lutea (CLs) in heifers by analyzing pregnancy rates after the transfer of in vitro fertilized and frozen embryos. The matrices were synchronized through fixed-time artificial insemination protocols (TAI), where insemination was not carried out on day 10, but rather embryos were transferred on day 14 in females that showed a positive response to the protocol, that is, that had CL in their ovaries. However, three females with caviar CL were identified at the time of transfer, but they still received embryos. Satisfactory pregnancy results were achieved in the process, including in the three females described with cavitary CL, supporting the literature that states that cavitary CLs do not compromise the production of progesterone and the maintenance of pregnancy in bovine females.
- Letícia da Silva David
- Denise da Silva Cosmo carvalho
- Fernanda de Queirós Costa