Liquid feed installation (1) for cattle comprising - a first mixing tank (100) for mixing liquid feed, with a first liquid feed outlet (110) for mixed liquid feed, - a second mixing tank (200) for mixing food components, with a second outlet of liquid food (210) for mixed liquid food, - the first mixing tank (100) presenting a first minimum volume of mixing and the second mixing tank (200) presenting a second minimum volume of mixing, and preferably the second minimum mixing volume is greater than the first minimum mixing volume; and - a control unit (1000) that is arranged and configured to activate in a first operating variant the liquid feed installation (1) for mixing in the first mixing tank (100) liquid food, preferably a first predetermined amount of liquid feed, pour the liquid food through the first liquid food outlet (110) of the first mixing tank (100) into a liquid food conduit (500), particularly an annular liquid food conduit (510, 520), transporting the liquid food through the liquid food line (500), transporting transport means that is in the liquid food line (500) to the second mixing tank (200), and pouring transport means through the second liquid feed outlet (210) from the second mixing tank (200) to the liquid feed line (500), when a predetermined amount of liquid feed, preferably the first quantity By default, it has been poured from the first mixing tank (100) to the liquid feed line (500).Instalación de alimentación líquida (1) para ganado que comprende - un primer tanque de mezcla (100) para mezclar alimento líquido, con una primera salida de alimento líquido (110) para alimento líquido mezclado, - un segundo tanque de mezcla (200) para mezclar componentes alimenticios, con una segunda salida de alimento líquido (210) para alimento líquido mezclado, - presentando el primer tanque de mezcla (100) un primer volumen mínimo de mezcla y presentando el segundo tanque de mezcla (200) un segundo volumen mínimo de mezcla, y siendo preferentemente el