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.
Selymes (1996) determined the minimal life span of beef cow lines as 8 years but, in his opinion, 10 years would be optimal. The average life span of purebred Hereford, crossbred beef cow and crossbred dairy cow populations was reported as 4.2 years by Arthur et al. (1993).or instance, cows born in April calved at an average age of 2.59 years, whereas those born in December did at an average age of 2.77 years. The difference is 0.18 years, i.e. 2.16 months. CONCLUSIONS The conclusions of our analysis generally support the results of earlier studies and practical observations.