NUTRIÇÃO DE PRECISÃO PARA VACAS LEITEIRAS

Abstract

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