Vol. 11, Special Issue 12 (2022)

The possible efforts are done to use the dairy cows body weight and its variations for different diagnostic and management purpose were studied BW data were received dairy the day from visiting controlled feeding situations.

Body weight data were analyzed on a daily and weekly basis in relation to other performance data that were also recorded on a daily basis. The analysis showed that BW, being sensitive to dry matter intake (DMI), response to reproductive clinical events by detectable changes. Analyzing BW data in relation to those on milk yield (MY), allow to characterize physiological stat ages during milking stage that can be of help in making management decisions. Possibility to build models that use daily BW and MY data to estimate DMI, and significant physiological stages are represented and illustrated.