sapperJ24
Well-known member
Oh yeah, totally different subjects. No way I'm jumping into a debate on whether a 4.5yo MD buck's sperm is better at impregnating a doe than a 2.5yo MD buck's. Seems like rabbit hole I don't want to go down and will let the internet experts take care of that.
it doesn't seem to matter much with humans.
Not to bring this thread back around to here, but in elk there is some evidence that bull age can impact recruitment. The sperms are likely equally potent, so no debate there. No idea if this carries over to mule deer as well.
B&C has a summary of the elk work here. https://www.boone-crockett.org/elk-reproduction-improved-mature-bulls
Their highlights include:
- Shorter breeding periods mean that most calves are born about the same time. Many prey species rely on synchronous births to swamp predators and thus reduce the effect of predation on survival of young.
- Earlier conception results in earlier birth dates, thereby providing calves more time to grow before winter. The additional growth may increase their survival during winter.
Edit. This survey has little relevance to wild populations or mule deer.
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