Jackson Ratio for younger tortoises?

[Tink_85]

At the bottom of the web page link above it mentions an up to date Jackson Ratio for the Spur-Thighed tortoise- does that mean the African Spur thigh? If it means the med spur thigh, does anyone have a link to this version? Or should I be using the normal version as I have been up till now?

Thanks

~Tink~

[rolleyparnell]

I send off for full booklet... along with A% SAE.. that was 3 weeks ago.. are they slow to reply?

[sandy]

If you get the name of the speices correct, you wont have problems knowing what the Jackson Ratio measures:0)
Spur thighs are either graeca graeca or ibera. African spurred tortoise is a Sulcata.
The Jackson Ratio only measures hermans ibera and graecas.

[DoodleBopper]

Hey, I'm looking for the Jackson ratio but the link doesn't seem to be here anymore?

[linda]

Originally Posted by Kirkie

Caledonia,

Here's a link to the Jackson ratio for larger tortoises. Also contains a method for converting length and weight into a usable formula to judge condition

http://www.britishcheloniagroup.org....ts/jackson.htm

Originally Posted by sandy

Hi Peter

I have one<g>.

there you go

[DoodleBopper]

My hatchlings are 3cm but the chart starts at 3.5? How can I work it out?

[linda]

Originally Posted by DoodleBopper

My hatchlings are 3cm but the chart starts at 3.5? How can I work it out?

you will need to do it mathematically

Calculating the Jackson Ratio: Measure the weight (in grams)
Measure the Straight Line length (in cm)
Calculate the weight divided by the length (in cm) cubed-
(weight/ length*length*length)



then with your final figure

look at this

• less than 0.16: An underweight tortoise needing special care.
• of 0.17: Light for hibernation, unless an active male, or an animal with unusually flared scutes.
• of 0.19: Normal, and safe to hibernate
• of 0.21: A very good weight, ideal condition.
• of above 0.23: Possibly too heavy, check for puffiness (water retention)