The bull may increase the probability of getting the cow pregnant before it becomes unprofitable to keep them for another lactation. Sometimes you will have to cull a cow because of reproductive problems, i.e., abortions, not pregnant or pregnant so late that she will have a long dry period. Thus, it is important to have a good heifer raising program to replace the cows that are leaving the herd. Finally, continue to monitor your progress by reviewing your goals, note where you stand relative to the goals and determine where you need to make improvements to reach your goals. As more products to increase milk production are used in your herd, managing reproduction may become more difficult and efforts to get a cow pregnant may have to be intensified.
Records are one of the most important parts of reproductive management of the dairy herd.
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