Vitamin-A Deficiency as Related to Reproduction in Range Cattle

This technical bulletin, published in the mid-20th century, emerged from the California Agricultural Experiment Station. It was authored by George H. Hart, a prominent figure in veterinary science who focused on the nutritional requirements of livestock. The work was produced to address widespread reproductive failures in range cattle, providing empirical data to help ranchers improve herd efficiency through better dietary management.

The publication is emblematic of the era's push toward scientific animal husbandry, reflecting a shift from traditional ranching practices to data-driven agricultural management. Hart's research, which explored the physiological consequences of carotene and vitamin-A depletion, was highly influential within academic circles and state-funded agricultural programs, serving as a foundational text for later nutritional studies in range management.