Guzmán-Rivera, Amaris

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    Prevalencia de endometritis sub-clínica post-parto en tres hatos lecheros de Puerto Rico
    (2014) Guzmán-Rivera, Amaris; Jiménez-Cabán, Esbal; College of Agricultural Sciences; Mesonero, Alexander; Sánchez Rodríguez, Héctor L.; Latorre Acevedo, José R.; Department of Animal Science; Gregory Crespo, Alexandra
    Reproductive efficiency in dairy herds is affected by environmental, genetic, management and health factors. Endometritis is one of the causes associated with low female reproductive efficiency. This study evaluated the prevalence of sub-clinical endometritis (SE) in three dairy herds in Puerto Rico. In cows averaging 45 ± 7 days post-partum, SE (defined as the presence of ≥5% of polymorphonuclear cells), was determined in two seasons (hot and cool) by endometrial cytology. The overall prevalence of ES (n = 101 cows) was 8.9% and it was not affected by breed (P = 0.73), season (P = 0.34), number of lactations (P = 0.60), nor the farm location (P = 0.56). For Holsteins (n=54), Brown Swiss (n=16), Jersey (n=22) and crossbreds (n=16) the prevalence of SE was 10.4, 18.7, 0 and 6.3%, respectively. Primiparous cows (n=43) showed a value of 7.1% and multiparous (n=65) was 10.2%. The prevalence of SE was 6.1% (n=55) during the hot versus 11.5% (n=53) during the cool season. As for location, in Moca, Lajas and Camuy showed value of 5.5, 6.6 and 12.0%, respectively. Compared to finding from other countries, the present results indicate a relatively low prevalence of SE in this sample of dairy herds in Puerto Rico.