ESTROUS CYCLE OF BUFFALOES Bubalus Bubalis DETERMINED WITH A DIGITAL ESTRUS AND OVULATION DETECTOR

The research aimed to determine the estrous cycle in Buffaloes using a digital heat and ovulation detector. To do this, 30 buffalo females were studied for 40 days with an average age of 4 years and average weight of 489 kg, to which the daily measurement of vaginal mucus resistance was performed using a Draminsky (ED) heat and ovulation detection equipment. In addition, swelling of the vulva, presence of vaginal mucus and depigmentation of the heat detector patch were determined. Subsequently, measures of central tendency (range, mean, median, maximum, minimum, variance) were used, as well as graphs and histograms of frequencies through the Microsoft Excel version 365 program for the tabulation of the information. The results obtained determined that the total duration of the estrous cycle was 21.83 days, divided into estrus with an average of 1 day, metaestrus 5.43 days, right-handed 12.47 days and proestrus 2.93 days. Regarding the economic analysis, it was observed that the total cost of the experiment was 567.15 USD and a unit cost per buffalo was $18.90. It was concluded that the behavior presented by most females in the estrus stage did not demonstrate swelling and redness of the vulva, there was an absence of vaginal mucus and there was no depigmentation in the heat detector patch in most of the females analyzed.