Accuracy of transrectal palpation for early pregnancy diagnosis in Egyptian buffaloes

Autor: Adel A. Ramoun, Noelita Melo de Sousa, Samy A. Darwish, Jean-François Beckers, Ottó Szenci, Nguyen Van Hanh, José Sulon, Khalid Tawfeek, Aly Karen
Rok vydání: 2010
Předmět:
Zdroj: Tropical Animal Health and Production. 43:5-7
ISSN: 1573-7438
0049-4747
Popis: The present study was undertaken to evaluate the accuracy of transrectal palpation (TRP) for diagnosing early pregnancy in buffaloes and the false diagnoses of the TRP test by using the pregnancy-associated glycoprotein radioimmunoassay (PAG-RIA) test. Pregnancy was diagnosed in 168 buffalo–cows once by TRP and PAG-RIA test between days 31 and 55 after breeding. The sensitivity of TRP for detecting pregnant buffalo–cows was 37.5% at days 31–35, increased to 93.8% at days 46–50 and reached 100% at days 51–55 (P < 0.01). All cases of false negative diagnoses (n = 10) had PAG concentration higher than the threshold (≥1.8 ng/mL) for diagnosing pregnancy. The specificity of TRP for detecting non-pregnant buffalo cows ranged between 90.9%, and 100% between days 31 and 55. All cases of false positive diagnoses (n = 5) made by TRP had PAG concentrations lower than the threshold for diagnosing pregnancy. It could be concluded that TRP is an accurate method for diagnosing pregnant and non-pregnant buffalo cows from day 46 after breeding.
Databáze: OpenAIRE