I'm completing a research project in a college course on the relationship of cow age vs. gestation length in beef cattle. I'm using data from my own herd in my study, but just realized I need to compare my results to prior research studies. Any suggestions on finding research in this area? Any databases or websites that may be helpful. After a quick web search, most articles relate to variances in gestation between breeds (obviously) and dairy information. Ideally these would be actual university studies and not surface level opinion type articles. Any help is greatly appreciated.