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Author Topic: Big buck genetics  (Read 4996 times)

Offline predatorG

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Big buck genetics
« on: November 02, 2018, 12:34:00 PM »
Everyone always talks about big bucks breeding and being able to pass on their genetics, which means if you miss one early season and get him or miss him again late he’s been able to procreate and there will hopefully be a couple bucks born that will grow up to be huge and just like him. I saw this last year in Montana when I shot a different buck than I was going after because he had the same antler style as a masher we saw, but 25 inches less bone or more due to regression. Everyone knows that big bucks should make more big bucks.

BUT

Assuming that a big buck travels a lot and gets to breed a decent number of does, 50% of his offspring that year should hypothetically be does. These does still have the same Dad, so even though they can’t grow antlers they still have the same big buck genes in them right? Obviously you can’t track these does realistically but wouldn’t it be safe to say that their future kids have a higher likely hood of being big bucks even without a dominant father? I think it would be interesting to look at does with big buck genes to see what their offspring are like. Obviously this post isn’t really conjecture and more of an observation on how nature works, but it was an interesting realization. Also then, how diverse is a given deer population genetically?
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Offline cavemann

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Re: Big buck genetics
« Reply #1 on: November 02, 2018, 12:57:30 PM »
I'll answer with my own opinion and serious questions..  Why do we assume large antlers means good genes?  The genes we should want is ability to survive winter, predators and habitat not necessarily antlers..  Is it an assumed fact that large antlers means good genetics or just the ability to grow large antlers?

I want more deer/elk regardless of antler size to keep more opportunities period, not necessarily the biggest bucks/bulls that may or may not breed while they spend late years holed up and not breeding.

Offline frazierw

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Re: Big buck genetics
« Reply #2 on: November 02, 2018, 01:00:52 PM »
Everyone always talks about big bucks breeding and being able to pass on their genetics, which means if you miss one early season and get him or miss him again late he’s been able to procreate and there will hopefully be a couple bucks born that will grow up to be huge and just like him. I saw this last year in Montana when I shot a different buck than I was going after because he had the same antler style as a masher we saw, but 25 inches less bone or more due to regression. Everyone knows that big bucks should make more big bucks.

BUT

Assuming that a big buck travels a lot and gets to breed a decent number of does, 50% of his offspring that year should hypothetically be does. These does still have the same Dad, so even though they can’t grow antlers they still have the same big buck genes in them right? Obviously you can’t track these does realistically but wouldn’t it be safe to say that their future kids have a higher likely hood of being big bucks even without a dominant father? I think it would be interesting to look at does with big buck genes to see what their offspring are like. Obviously this post isn’t really conjecture and more of an observation on how nature works, but it was an interesting realization. Also then, how diverse is a given deer population genetically?

I have a buddy that has his PHD in Wildlife ecology and I asked him basically the same question, and he wasnt able to find any studies that were done on the subject, but it is a great question!

Offline huntnphool

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Re: Big buck genetics
« Reply #3 on: November 02, 2018, 01:01:46 PM »
 Keep in mind that a buck with a big rack doesn't wait until then to breed, chances are he has been spreading his genes for years leading up to that point.

 Genes don't change as the buck gets older, it doesn't matter when he spreads them. :twocents:
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Offline elkrack

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Re: Big buck genetics
« Reply #4 on: November 02, 2018, 01:03:48 PM »
 
Keep in mind that a buck with a big rack doesn't wait until then to breed, chances are he has been spreading his genes for years leading up to that point.

 Genes don't change as the buck gets older, it doesn't matter when he spreads them. :twocents:



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Online hunter399

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Re: Big buck genetics
« Reply #5 on: November 02, 2018, 01:13:38 PM »
I'll answer with my own opinion and serious questions..  Why do we assume large antlers means good genes?  The genes we should want is ability to survive winter, predators and habitat not necessarily antlers..  Is it an assumed fact that large antlers means good genetics or just the ability to grow large antlers?

I want more deer/elk regardless of antler size to keep more opportunities period, not necessarily the biggest bucks/bulls that may or may not breed while they spend late years holed up and not breeding.

I will just throw this out there .
If a buck has a nice set of antlers
That buck has survived
A few hard winters
A few predators,including hunting seasons
Has made a nice set of antlers, With genetics and habitat.

So yes you do want the best genetics to be passed along but doesn't always workout that way.But like you put you want more deer and elk regardless of antler size.Than you also want animals with the biggest racks to spread there seed.


Offline Samloffler

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Re: Big buck genetics
« Reply #6 on: November 02, 2018, 01:16:03 PM »
How do we know the "big antler gene" isn't a male only chromosome? His female offspring may not even have the ability to have the gene. Even if they do, by the time that generation comes around, its at most a 50% chance its been passed down.

All that being said, the whitetail population I hunt totaly has two antler forms. One is thick with super long eye guards, and one is narrow, spindly, and "normal" looking. Maybe back in the day there were only two dominant bucks in the area but they never ran into eachother.

Its an interesting conversation.

Offline tlbradford

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Re: Big buck genetics
« Reply #7 on: November 02, 2018, 01:25:32 PM »
I'll answer with my own opinion and serious questions..  Why do we assume large antlers means good genes?  The genes we should want is ability to survive winter, predators and habitat not necessarily antlers..  Is it an assumed fact that large antlers means good genetics or just the ability to grow large antlers?

I want more deer/elk regardless of antler size to keep more opportunities period, not necessarily the biggest bucks/bulls that may or may not breed while they spend late years holed up and not breeding.

It might not mean it is the best genes, but it will indicate good nutrition and health typically
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Offline predatorG

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Re: Big buck genetics
« Reply #8 on: November 02, 2018, 01:27:20 PM »
I'll answer with my own opinion and serious questions..  Why do we assume large antlers means good genes?  The genes we should want is ability to survive winter, predators and habitat not necessarily antlers..  Is it an assumed fact that large antlers means good genetics or just the ability to grow large antlers?

I want more deer/elk regardless of antler size to keep more opportunities period, not necessarily the biggest bucks/bulls that may or may not breed while they spend late years holed up and not breeding.

Sorry, I always forget the importance of surviving winters. I hunt the puget sound lowlands where food is relatively plentiful year round and snow is sparse. For us the predators are the biggest threat, and genes don’t seem to help that much for fawns in that case  :dunno:

I always forget that there’s more important genes in other places than antler size, which is what I always focus on here with Blacktails.
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Offline fishnfur

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Re: Big buck genetics
« Reply #9 on: November 02, 2018, 03:19:07 PM »
Ahh, PredatorG, you gave up on that too easy.  It was a good and valid set of questions.  We discussed this a winter or two ago during the off-season. 

The answer is too convoluted for a sensible discussion.  I hesitate to get deeply into it because it has been too many years since I studied any genetics.  Also, discussions about dominant traits and recessive traits require that you know what the trait for growing large antlers is.  I would suspect dominant.   

Educators always simplify these discussions by discussing simple traits to track, such as eye color.  A parent can carry pure traits or mixed traits, depending on what their parents traits were.  Brown - Dominant  trait.  Blue - Recessive trait.  Mating a pure blue eyed trait human and a pure brown eyed trait human produces only brown eyed children, because the brown trait is dominant.  The same pairing of say a parent (or both parents) that have the traits for both brown and blue eyes (regardless of their actual eye color) will produce a predictable mix of both brown and blue eyed children. 

So that's all way too boring and confusing.  One thing to remember is that this buck that we consider dominant likely has a whole set of siblings of different fathers adding their similar genes to the population.  Also,  we don't know what the genetics of this dominant buck's parents were.  He may carry mixed traits for both large and small antlered kids.  One of the most confusing aspects is that when gamete sex cells divide to become either eggs or sperm, they only receive half of the original number of chromosomes. When sperm and egg combine in the mother, the correct number of chromosomes is restored, containing the traits of both parents.  No two sperm or eggs are alike.  Depending on which sperm won the race, and which egg was available and got fertilized, you end up with innumerable chances for minor differences in the results of the offspring.  Other considerations:

- one good study I found regarding antler size indicated that a warm wet spring was the most important factor in a deer reaching it's genetic potential for growing antlers.  Warm and wet equaled more food during the antler growing season.

- Large antlers give a buck at better chance at spreading their genes, given a population of same body sized animals.  A massive bodied fork horn deer will outcompete a young 10 point buck when it is time to mate.  The doe doesn't decide which will breed her.  If necessary, they'll fight for it.  The big bodied deer will win.

- the trait for super large antlers may be passed along for many generations before it is expressed in an offspring.  That big old dominant buck that bred all those does will have his genes passed down for a long time.  Every once in awhile, his look-alike comes along many generations removed from his life. 

Ultimately, there are so many ramifications in a moving deer population that we cannot guess much about what will happen in the future.  Additionally, since does tend to say local to their maternal herd, and bucks move on to a new area at around age 1.5, there is always an influx of new genes into each population of deer.  (not so much so on the islands).

Confused?  Good!   :chuckle:

Here's that other thread I spoke of regarding antler size and genetics:  https://hunting-washington.com/smf/index.php/topic,193863.msg2568654.html#msg2568654

« Last Edit: November 02, 2018, 04:29:36 PM by fishnfur »
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Offline Igor

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Re: Big buck genetics
« Reply #10 on: November 02, 2018, 04:45:21 PM »
It seems like every so often the subject of a buck "regressing" comes up........one which had large antlers at one time, but no longer does.  Without seeing the same buck year-after-year, I'm not sure how it's known whether a buck has "regressed" or not.  I've seen bucks that just look old, but don't have large antlers.  My son shot a very large-bodied 2 pt. mulie with five eye-guards this season, and his face just looks like an old deer, not a young one.  I guess my question is how common is it for a large buck to actually regress?
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Re: Big buck genetics
« Reply #11 on: November 02, 2018, 04:50:32 PM »
It seems like every so often the subject of a buck "regressing" comes up........one which had large antlers at one time, but no longer does.  Without seeing the same buck year-after-year, I'm not sure how it's known whether a buck has "regressed" or not.  I've seen bucks that just look old, but don't have large antlers.  My son shot a very large-bodied 2 pt. mulie with five eye-guards this season, and his face just looks like an old deer, not a young one.  I guess my question is how common is it for a large buck to actually regress?

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Offline Igor

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Re: Big buck genetics
« Reply #12 on: November 02, 2018, 05:45:21 PM »
It seems like every so often the subject of a buck "regressing" comes up........one which had large antlers at one time, but no longer does.  Without seeing the same buck year-after-year, I'm not sure how it's known whether a buck has "regressed" or not.  I've seen bucks that just look old, but don't have large antlers.  My son shot a very large-bodied 2 pt. mulie with five eye-guards this season, and his face just looks like an old deer, not a young one.  I guess my question is how common is it for a large buck to actually regress?

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Offline Bango skank

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Re: Big buck genetics
« Reply #13 on: November 02, 2018, 06:15:38 PM »
How do we know the "big antler gene" isn't a male only chromosome? His female offspring may not even have the ability to have the gene. Even if they do, by the time that generation comes around, its at most a 50% chance its been passed down.

All that being said, the whitetail population I hunt totaly has two antler forms. One is thick with super long eye guards, and one is narrow, spindly, and "normal" looking. Maybe back in the day there were only two dominant bucks in the area but they never ran into eachother.

Its an interesting conversation.

Whitetail bucks disperse from their home range at about 1.5 yrs or earlier.  So the bucks born in your hunting area wont live there after momma boots them.  So its not generations of bucks living and growing there alongside pops and grandpa.

Offline Bango skank

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Re: Big buck genetics
« Reply #14 on: November 02, 2018, 06:19:27 PM »
I guess my question is how common is it for a large buck to actually regress?

They all will, but they have to live long enough, so its not common.  This buck ive been watching since 2015.  These side by side pics are 2017 / 2018.  Hes got some new junk and gained a little mass, but hes lost a good deal of tine length.  Not hunting him this year, so im hoping hes still alive next year, will be interesting to see what happens with his rack.  I think this year is the start of his downhill side.
« Last Edit: November 02, 2018, 06:27:44 PM by Bango skank »

 


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