KEEP IT SANE, FAIR AND MOTORCYCLE AWARE. Dixie ABATE of Alabama is a state motorcylists' rights organization (SMRO) dedicated to preserving individual freedom while promoting safety. We fully support rider training, including safety and educational programs, as well as motorcycle awareness education for all automobile drivers.
1 In the UK, the average working lifespan of a dairy cow is around four lactations (milk-producing periods), and hence many dairy cows are culled when they are relatively young.
After the first heat, about 25 to 30% of cows have a short cycle. A normal cycle lasts 19 to 23 days in beef cattle. However, short cycles last only 12 to 15 days. During short cycles progesterone, the hormone that supports pregnancy, does not stay elevated for enough days to allow implantation to occur. In 70 to 80% of beef cows, there is a brief (2 to 8 day) increase in progesterone that occurs before the first heat (Figure 1).