2009
DOI: 10.1016/j.theriogenology.2009.07.007
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Association between evaluation of the reproductive tract by various diagnostic tests and restoration of ovarian cyclicity in high-producing dairy cows

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Cited by 32 publications
(36 citation statements)
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“…However, we did not observe this relationship in the present study, and neither albumin or total protein index accounted for the variation in results (Tables 1 and 2), probably because the cows used in this study had calved for several months. Endometrial cytological sampling was used in this study to assess the presence of polymorphonuclear neutrophils, as previously described (Kasimanickam et al, 2004;Senosy et al, 2009). We observed that as the PMN increased, the percentage of viable embryos and fertilized ova decreased (Table 3).…”
Section: Resultsmentioning
confidence: 94%
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“…However, we did not observe this relationship in the present study, and neither albumin or total protein index accounted for the variation in results (Tables 1 and 2), probably because the cows used in this study had calved for several months. Endometrial cytological sampling was used in this study to assess the presence of polymorphonuclear neutrophils, as previously described (Kasimanickam et al, 2004;Senosy et al, 2009). We observed that as the PMN increased, the percentage of viable embryos and fertilized ova decreased (Table 3).…”
Section: Resultsmentioning
confidence: 94%
“…A relationship between uterine health and reproductive performance has also been established (Gilbert et al, 2005;Santos et al, 2009;Senosy et al, 2009). Subclinical endometritis is common in dairy cows, affecting as many as 50% of all cows from 7 weeks postpartum in high-producing dairy herds (Hammon et al, 2001;Gilbert et al, 2005;Sheldon et al, 2006).…”
mentioning
confidence: 99%
“…3). No presente estudo, a média de dias entre o parto e a primeira ovulação (43,6±21,5 dias) foi superior à relatada por outros autores, tais como: 29,7 dias (De Vries e Veerkamp, 2000) e 31,6±7,0 dias (Senosy et al, 2009); porém, foi semelhante ao estudo de Nakao et al (1992), que encontraram médias de 44±22 e 38±17 dias para vacas de alta produção com ou sem infecção uterina, respectivamente.…”
Section: Resultsunclassified
“…Como observado no presente estudo, as doenças uterinas estão relacionadas com o atraso no retorno da atividade ovariana luteal cíclica; se a involução uterina atrasa, o retorno da atividade ovariana é afetado (Mateus et al, 2002;Sheldon et al, 2002;Senosy et al, 2009). Nesses casos, o atraso no retorno da atividade ovariana é decorrente da influência das endotoxinas bacterianas e das citocinas proinflamatórias no eixo hipotalâmico-hipofisário-gonadal, que alteram o desenvolvimento, a função e o destino do primeiro folículo dominante (Sheldon et al, 2002;2008; provável que esse procedimento tenha favorecido a antecipação da primeira inseminação artificial, independentemente da categoria e ocorrência prévia de infecção uterina.…”
Section: Resultsunclassified
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