However, AI requires a commitment to a highly skilled technique and the necessary management skills to obtain optimal success. Success in the breeding program is measured by calving interval which is mostly a function of days to first service. Heat detection 2. Quality semen 3. Proper handling of semen 4.
Records start with an estimated DUE date and calving date.
Off feed 2. Sharp drop in milk flow 3. Increased flow of clear mucus Heat detection aids have been used with varying degrees of success. Rump patches and tail-head painting may be of benefit when interpreted properly. The biggest value of these devices may be that they call attention to the fact that the cows should be observed more closely for heat.