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Desde 1992, la reducción en el número de tambos comerciales registrados fue de 80.028, pasando de 131.509 a 51.481 establecimientos. Entre 2003 y 2011 solamente 22.531 tambos dejaron el negocio con un promedio de 2.503 por año en los nueve años.
Desde 1992, la reducción en el número de tambos comerciales registrados fue de 80.028, pasando de 131.509 a 51.481 establecimientos. Entre 2003 y 2011 solamente 22.531 tambos dejaron el negocio con un promedio de 2.503 por año en los nueve años.
Hace 20 años, la reducción en el número de tambos comerciales registrados fue de 80.028, pasando de 131.509 a 51.481 establecimientos. De los 80.028 tambos que dejaron la actividad, en las últimas dos décadas, la gran mayoría, 57.497 tambos (un 72%) vendieron sus vacas entre 1992 y 2002. Eso determina una media de 5.861 rodeos lecheros por año. Desde entonces ese número ha ido disminuyendo. Entre 2003 y 2011 solamente 22.531 tambos dejaron el negocio con un promedio de 2.503 por año en los nueve años.
En la investigación fueron considerados los tambos que contaban con habilitación para vender leche. Este número difiere a otra estimación del Departamento de Agricultura de los Estados Unidos (USDA) sobre el número de vacas lecheras.
Cuando se observan los últimos 20 años, el tamaño medio del rebaño aumentó un 142% de 74 a 179 vacas a nivel nacional. Regionalmente, el oeste y centro-oeste tuvieron los mayores porcentajes de ganancias en el tamaño de los rodeos.
Los rodeos del oeste de los EEUU, aumentaron en 32 vacas durante el año pasado, llegando a una media de 916 vacas por operación. Al mismo tiempo, el sudeste y centro-oeste tuvieron pequeñas ganancias en el tamaño del rebaño, mientras que el nordeste permaneció constante en 95 vacas.
