[Jacob-list] can of worms

[Linda]

I just looked up our daylight hours.  There are two times given - one is "length of visible light" and the other is "length of day".  I guess length of visible light is the figure to use?  Our length of day here is just under 14 hours (13 hours 52 minutes) now and I don't think anyone out there is ready to breed.  Length of visible light is 14 hours 48 minutes.  I think that the mountains have an effect on visible light. 

Linda
 
www.patchworkfibers.com
Registered Jacob Sheep, Angora Rabbits, Handspun Yarn

> I was told (at a workshop with Dr. Martin, U.C. Davis) that
> breeding is triggered by the changing of the seasons and that
> Jacobs breed when there is less than 14 hours of daylight and stop
> cycling when they are pregnant and/or there is more than 12 hours
> of daylight. So that is going to vary according to your latitude.
> Here, we hit 14 hours of daylight the last couple days of August.
> The earliest I've had lambs born was January 29th. Leaving a ram in
> all year, I had a lamb born in late June to a yearling ewe.
>
> Debbie Bennett
> Feral Fibre Farm
> Oakland, Oregon
> On Aug 1, 2006, at 1:05 PM, Hobsickle at aol.com wrote:
>
>> Jacobs are supposed to breed seasonally.  What is the earliest
>> that a "pure" Jacob (whatever that is) will come into heat?  How
>> early of heats should be considered to indicate "crossbred" stock?
>>
>> -Dan
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