Reproduction

DNA markers have come a long way in the past decade, moving from a one-marker single nucleotide polymorphism (SNP) test to tests that now simultaneously involve tens of thousands of markers. Scientists have learned a lot along the way, and the technology is starting to come of age.

Typically, producers that synchronize estrus do so to facilitate an A.I. program. However, there are some instances where application of an A.I. program is not feasible but advantages from synchronization of estrus are still desirable.

Selecting to improve multiple traits simultaneously can be cumbersome. Just open any sale catalog, and it’s easy to become immediately confused. Economic indexes can help alleviate this confusion. They do so by combining multiple EPDs, each weighted by an economic value, into one numeric value often expressed in dollars per animal.

Most bodily functions are controlled by the endocrine system, which uses chemicals and hormones (chemical messengers) that are released into the bloodstream from glands.

Is two better than one? Or is calving twins double the trouble?

Whatever the case, raising twins or multiple calves can bring a whole new set of challenges to an operation.

For some the “spring” calving season is upon them, although the calendar still says it is winter. For others, the start of the spring calving season is still several months away. The value of calves under current market conditions is amazing, with baby calves bringing close to the same amount of dollars today a weaned calf would bring just five years ago.