Breeding and Reproduction
University of Nebraska Beef Cattle Reproduction and Genetics
One of the biggest make or break points on your farm is the reproductive success of your herd. This University of Nebraska site details all things genetics and breeding-related. These resources are from a multi-state task force that includes the University of Nebraska–Lincoln and several other state universities.
https://beef.unl.edu/beef-cattle-production/reproduction-and-genetics
Reproductive Management of Beef Cattle
Reproductive efficiency has long been recognized as the most important aspect of commercial beef production. If only 50 percent of the cows wean a calf, crossbreeding, superior genetics and sound management become insignificant. This link will take you to a great resource from the University of Georgia Extension, covering a wide range of topics in cattle reproductive management.
https://extension.uga.edu/publications/detail.html?number=B864
Misc. links
Angus Gestation Calculator
Angus Association Calculators and Tables
CAB Cattleman Breeding Health