Birth
Date
Begin
1st
Prime
1st
Peak
Prime
Begin
2nd
Prime
2nd
Peak
Prime
Begin
3rd
Prime
3rd
Peak
Prime
January
1-15
July
1-15
Nov.
1-15
March
1-15
July
1-15
Nov.
1-15
March
1-15
January
16-31
July
16-31
Nov.
16-30
March
16-31
July
16-31
Nov.
16-30
March
16-31
February
1-15
August
1-15
Dec.
1-15
April
1-15
August
1-15
Dec.
1-15
April
1-15
February
15-28
August
16-31
Dec.
16-31
April
16-30
August
16-31
Dec.
16-31
April
16-30
March
1-15
Sept.
1-15
January
1-15
May
1-15
Sept.
1-15
January
1-15
May
1-15
March
16-31
Sept.
16-30
January
16-31
May
16-31
Sept.
16-30
January
16-31
May
16-31
April
1-15
October
1-15
Feb.
1-15
June
1-15
October
1-15
Feb.
1-15
June
1-15
April
16-30
October
16-31
Feb.
16-28
June
16-30
October
16-31
Feb.
16-28
June
16-20
May
1-15
Nov.
1-15
March
1-15
July
1-15
Nov.
1-15
March
1-15
July
1-15
May
16-31
Nov.
16-30
March
16-31
July
16-31
Nov.
16-30
March
16-30
July
16-31
June
1-15
Dec.
1-15
April
1-14
August
1-15
Dec.
1-15
April
1-15
August
1-15
June
16-30
Dec.
16-31
April
16-30
August
16-31
Dec.
16-31
April
16-30
August
16-31
July
1-15
January
1-15
May
1-15
Sept.
1-15
January
1-15
May
1-15
Sept.
1-15
July
16-31
January
16-31
May
16-31
Sept.
16-30
January
16-31
May
16-31
Sept.
16-30
August
1-15
Feb.
1-15
June
1-15
October
1-15
Feb.
1-15
June
1-15
October
1-15
August
16-31
Feb.
16-28
June
16-30
October
16-31
Feb.
16-28
June
16-30
October
16-31
September
1-15
March
1-15
July
1-15
Nov.
1-15
March
1-15
July
1-15
Nov.
1-15
September
16-30
March
16-39
July
16-31
Nov.
16-31
March
16-30
July
16-31
Nov.
16-30
October
1-15
April
1-15
August
1-15
Dec.
1-15
April
1-15
August
1-15
Dec.
1-15
October
16-31
April
16-30
August
16-31
Dec.
16-31
April
16-30
August
16-30
Dec.
16-31
November
1-15
May
1-15
Sept.
1-15
January
1-15
May
1-15
Sept.
1-15
January
1-15
November
16-30
May
16-31
Sept.
16-30
January
16-31
May
16-31
Sept.
16-30
January
16-31
December
1-15
June
1-15
October
1-15
Feb.
1-15
June
1-15
October
1-15
Feb.
1-15
December
16-31
June
16-30
October
16-31
Feb.
16-28
June
16-30
October
16-31
Feb.
16-28
Birth
Date
Begin
1st
Prime
1st
Peak
Prime
Begin
2nd
Prime
2nd
Peak
Prime
Begin
3rd
Prime
3rd
Peak
Prime
"In Prime"
As a breeder/owner of a chinchilla you want to show your chin when it is "in
prime",  because this is when it's fur is at it's best and appears the fullest and
thickest.  This is when to show the best quality you have or are able to produce.  
Showing a chinchilla when it is not in prime (or at least close to prime) is a waste
of your money, your reputation and the time of everyone at the show.    If you
were a tanner, it would be important to know when it is the best time to tan the
hide.

The chart below gives information taken from the
Chinchilla Priming Calendar,
copyrighted in 1955, by Mr. Carl J. Farner of California.  Mr. Farner
made/developed this calendar during his 6 years of study with chinchilla ranchers
and tanners.    Mr. Farner also served with the Medical Department of the U.S.
Navy for 32 years.

In his studies, Mr. Farner concluded that the first prime growth commences at
the age of six (6) months and becomes fully prime at the age of ten (10) months.  It
then turns off prime for a period of 111 days, almost 16 weeks or 3.7 months.  At
the end of this time period, the fur starts the second prime growth which requires
132 days, almost 19 weeks or 4.4 months, to reach full or peak prime for the
second time.  The chinchilla's fur and body continues to repeat this process every
8 months or 243 days, for the rest of it's life span.   

Three weeks prior to the peak of prime, the skin begins to clear of the blue
pigment and becomes clear and fully prime in the three week (21 day) period
before it reaches prime.  Each additional peak prime occurs every 8 months or 243
days.  During these three weeks the body of the chinchilla nourishes and builds
new tissue or sealing over the area forming under the fur.  It is a leather tissue
covering the fur roots or follicles.  This produces a strong durable leather or base
for the chinchilla's fur, holding it in place.

This schedule is true for all healthy chinchillas.  Illness or fur-chewing can
disrupt this process/timeing.

To see a picture of one of the original priming calendar wheels and the letter that
came with it, please check below the Prime Chart.
In Prime Chart
Why is it important to know when your chinchilla is "in prime"?
To the left you can see a
picture of the actual priming
wheel chart.  There is a wheel
on the back that easily turns
to allow you to see in one of
the 7 windows provided, when
a chinchilla will start prime
and peak prime.

Below is a "Forward" to the
Chinchilla Priming calendar
which explains how it was
developed and by whom.
I was lucky enough to find this Priming Calendar and ...
as with all the other information I get ...
would like to share the information with you.

We all need to learn and share information ...
for the health and future of all chinchillas!
Return to

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home page.