Eficiência da inseminação artificial em tempo fixo (IATF) associada à detecção de estro por marcação da cauda e presença de muco vaginal no dia da inseminação em vacas Nelore / Efficiency of artificial inseminatio n in fixed time (FTAI) associated with estrus detection by marking the tail and the presence ofvaginal mucus on the day of insemination in Nelore cows
Souza, Ícaro Oliveira Torres de; Mota, Luiz Harliton Cavalcante Monteiro; Santos, Cícero Soares dos; Sousa, Sávio Ruan Sampaio de; Barros, Filipe Nunes; Moraes Júnior, Felipe de Jesus; Souza, José Adalmir Torres de; Costa, Amilton Paulo Raposo.
R. bras. Reprod. Anim.;
40(4): 256-258, Out-Dez. 2016. tab
Artigo
em Português
| VETINDEX
| ID: vti-24006
Resumo
The objective of this study was to evaluate the efficiency of artificial insemination in fixed timeassociated with estrus detection in Nellore cows. They used 917 females, all submitted to estrus synchronizationprotocol and formed two groups: G1 (n = 489), marked on the back with fluorescent dye and then checked if thecroup was blurred or not, and had vaginal mucus or not and G2 (n = 428) were formed by females inseminatedonly synchronized. Pregnancy diagnosis was performed by ultrasound 30 days after insemination. In G1 and G2,pregnancy rates were, respectively, 46.01% and 41.12%. In G1, blurred females (52.19%), not blurred(21.78%), presence of mucus (62.57%) and no mucus (35.97%). Pregnancy rates did not differ between thegroups G1 and G2. In G1, blurred females or mucus had higher rates. It is concluded that the detection ofestrus, insemination favored the pregnancy rate.(AU)
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Localização: BR68.1
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