Within a dairy farm there are differences between the diets formulated, offered and
actually consumed by the animals, in a way that they can interfere with the productive
performance, because of errors that are multifactorial. Assessing the ingestive
behavior of lactating cows is a tool that makes it possible to understand the challenge
that the animal is facing, both in terms of diet and factors related to the environment.
Accelerometer sensors allow continuous monitoring of these variables, helping the
producer to understand the behavior of his flock. As foods within a property may have
nutritional values different from those listed, the use of NIRS (Near Infrared
Spectroscopy - Near Infrared Spectroscopy) allows chemical-bromatological analyzes
to be carried out in a practical, fast and cheap way, generating data immediately
delivery and enabling the formulation of new diets in a shorter time. The particle length
of forages offered to the animals must be in a standard that allows the correct
consumption of dry matter and productive performance, as well as ensuring adequate
rumen health and activity. Thus, the Penn State Particle Separator was developed with
the aim of evaluating the percentages of different particle sizes that make up the diet,
as well as the animal selection pattern and possible errors in the mixing time of the
ingredients in the forage car
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