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Results found in several dictionaries: Collins, Collaborative Dictionary
dairy farmer 
  n producteur(-trice)  m/f  de lait 
a dairy farmer with 100 cows   

Collaborative Dictionary     English-French
egg farmer n. le producteur d'œufs Reverso General Dictionary 
farmer's market n. le marché de producteurs Reverso General Dictionary 
tobacco farmer n. le planteur de tabac Reverso General Dictionary 
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'dairy farmer' also found in translations in French-English dictionary
agricultrice nm. farmer Reverso General Dictionary 
conchyliculteur pref. shellfish farmer Reverso General Dictionary 
crème-dessert nm. dairy dessert Reverso General Dictionary 
laitier exp. dairy Reverso General Dictionary 
laitiers exp. dairy Reverso General Dictionary 
maraîcher pref. truck farmer Reverso General Dictionary 
ostréiculteur pref. oyster farmer Reverso General Dictionary 
ostréicultrice nm. oyster farmer Reverso General Dictionary 
crème dessert nm. dairy dessert Reverso General Dictionary 

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