Growth accelerated as World War II brought an unusual increase in demand for dairy products, and Texas farmers responded by increasing production. The number of dairy cows in Texas had been increasing slowly since 1900, growing from 1,034,000 in 1914 to 1,146,768 in 1939, but during the war the number increased to 1,594,000. Milk production increased accordingly. After the war, however, expansion brought new problems as milk prices declined. Almost all grade A milk producers were by then wholesaling their product to processors, and dairy farmers complained that they were at the mercy of the handlers who purchased their milk. Such conditions led to the establishment and growth of producer bargaining associations.