percentage bucks and does

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Whitetail Deer Farmer said:
This was discussed in the old forums where I was registered as Whitepinedeer.

You are forgetting about The Trivers-Willard hypothesis,

Studies on wild populations indicate that as population densities increase the number of bucks produced will decrease, this is called the Trivers-Willard hypothesis.

During the 1940s studies showed that the larger number of Doe in a given area produced more buck fawns and in a given area where the larger number of Bucks were that more Doe fawns were produced.

So it was determined that you should start early in the season by removing as many bucks as possible from your herd and neighboring pens to get more buck fawns. And making your pens as large as possible

This is nature’s way of perpetuating the species.
Click to expand...



Sounds good to me also.
 
I disagree with the natural selection theory for choosing *** in a fenced in area. That theory may work great in the wild over periods of tim, and in fact it does. However, it is very hard to "manipulate" natural selection. *** is determined by a coin-flip basically, some bucks may produce more X sperms and some may produce more Y, that could be dependent on the bucks biology itself or random chance in the semen sample. I am by no means telling anyone to change what they're doing, as stated already, if it aint broke don't fix it, but there are certain things that just cannot be determined, at least with our current state of technology
 
Sounds good to me also. The first and third theory could be seen under a microscope . or not?
 
I'm surprised no one has mentioned iodine yet.

This is my experience.

Iodine effects the *** ratio in two ways.

A female foetus requires much more iodine than a male.A deficit leads to spontaneous abortion of female calves/fawns,so lower fawning rate but higher male to female ratio.

Too much iodine in the stags/bucks diet will over stimulate the thyroid gland, producing more Y sperm.

Cheers Sharkey
 
If there is a deficit in hinds/does,I use Iodised salt in either a solid or liquid lick,depending on species (sambar will not touch a soild lick,but love a liquid).

Iodine deficency is not very common,it seems to be on poorer soils down here.By picking up on this,I've seen several herds pick up their weening averages & balance *** ratios.

Iodine for the sires can be in their feed.The safest way would be using a seaweed based meal.(Iodine is also a very common antiseptic)

I first became aware of this when several herds of deer I was involved with consistently produced 70/30, male/female,*** ratios.Goat breeders,seem to know more about this & by following their advice and lowering the iodine in the feed,*** ratios returned to normal.

Deer are farmed for many reasons here not just trophys,& good hinds/does can often bring more money than the boys.

Cheers Sharkey
 
We have been raising deer for over 17 years now and have a very large herd - about 600 deer. Over the years we have found that things will average out to about 50-50. You can get one year skewed one way or the other, or one or two pens skewed one way or the other. We do find that we usually have a few more bucks than does, but nothing significant. You need a lot of deer over a lot of years to establish any sort of pattern.
 
We have an 11 year old Bucky daughter that had her first buck last year and her second this year! Late bloomer I guess!
 
Last year 6 bucks 3 doe. So far this year 7 doe 2 bucks. I think you might be right... it al works itself out. Rick
 
Down here in Texas there are several Ranches that are using sexed semen.

I have been told that after the straws are put up there are approximately 90% male semen in the male straws and vise versa 90% female in the female sexed straws. Conception rates are low due to the low semen survival rates. Would it have been nice if this was around when PA Geronimo was around, perhaps they should try this with BM Bill or other sires that produce one way or another? Email me if you would like to discuss this further, I know it's kind of way out there.

http://www.eslabonranch.com
 

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