The application discloses a
system for predicting the
occurrence time of the
peak value of the non-
esterified fatty acid concentration in the blood of a dairy cow after delivery, and belongs to the technical field of healthy breeding of dairy cows. The
system takes the
genus level relative abundance of five marker microorganisms in the
intestinal contents of a dairy cow one week before delivery as input data, calculates a
score through a preset
discriminant model, and judges whether the
peak value of the blood free
fatty acid concentration after delivery occurs on the day of calving according to a set threshold. The overall prediction accuracy of the
discriminant model reaches 90%, the prediction accuracy for dairy cows with a peak on the day of calving reaches 75%, the
system is simple to operate and stable in performance, can realize pre-delivery early warning of high health risks of peripartum dairy cows, provides
technical support for taking preventive measures in advance, improving the postpartum health status and
lactation level of dairy cows, and has important practical application value and economic significance.