Other research highlighted stress-related breeding problems in range herds, especially when artificial insemination is used. Twice daily observations for estrus detection and the training of observers were emphasized as critical for successful artificial breeding program. Research on internal parasites has examined seasonal patterns of buildup in beef cattle grazing foothill pastures and the response of the immune system to internal parasite loads. Guidelines were developed for more precise scheduling of available treatment preparations, and coordination of treatment with seasonal changes in pasture use. Studies also have been done on ear tags for face fly control, selenium supplementation, pinkeye control, energy expenditure by beef steers grazing annual grassland, the development of a method to measure individual cow consumption of supplements, and electronic recording of range cow grazing and rumination behavior.
Trials continue in the areas of cow-calf management, herd health, nutrition, and grazing management.
During the last decade, station research has diversified, and wildlife, forestry, soils, and watershed management form an important component of current activities. The problem of poor oak regeneration is being studied extensively. Some projects are examining factors responsible for poor natural regeneration. Others are evaluating techniques for successfully growing and planting acorns and seedlings. Information from these studies has clarified some of the principle obstacles to successful seedling establishment.