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Results found in several dictionaries: Collins, Collaborative Dictionary
ganadería   sf 
1  (=crianza) cattle raising, stockbreeding , (en estancia)  ranching
2  (=estancia) stock farm 
(=rancho) 
cattle ranch 
toros de ganadería de Valdemoro  bulls from the Valdemoro ranch 
3  (=ganado) cattle, livestock 
(=raza) 
breed, race of cattle

Collaborative Dictionary     Spanish-English
'ganadería' found in translations in English-Spanish dictionary
stockbreeding n. la ganadería Reverso General Dictionary 

"Collins Spanish Dictionary 8th edition published in 2005 © William Collins Sons & Co Ltd 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005"