Influência da presença do corpo lúteo na taxa de prenhez em búfalas submetidas à IATF / Influence of corpus luteum presence in the pregnancy rate in buffaloes submitted to TAI

ABSTRACT

This study evaluated the influence of the presence or absence of corpus luteum at the beginning ofartificial insemination protocol at fixed time (TAI) in pregnancy rate. 48 animals were used which prior toinsertion of releasing progesterone device were evaluated by rectal palpation for the presence or absence of thecorpus luteum, and divided into two groups G1 cows with the presence of the corpus luteum, and G2 cows notwithout palpable structures. The data collected from individual records were tabulated in spreadsheets andevaluated in the SAS software (2000). The pregnancy rate for G1 and G2 was 40% 53.57% respectively, P >0.05. Suggesting that the presence of corpus luteum did not influence the pregnancy rate in TAI.(AU)