RF Weight vs Size

[tangale]

Hi Everyone!

Was wondering if my redfoot is at a decent weight compared to it's size. The length of it's shell is between 5 - 5.5" and the current weight is 422 grams.

Also, is there a way to stop my redfoot from doing its thing in the drinking water? I find myself having to clean it practically every day.

Thanks,
Alex

PS - I love this forum!

 

[terryo]

Pio my Cherry Head is 6 in. and 1lb 10 oz. and he's two years and 7 months old. I don't know how to do grams. Could you convert your weight for me into lbs?

 

[terracolson]

there is a post in here about how to figure out the min...weight...let me see what i can find

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The formula is simply length (in centimeters) cubed, times 0.191 equals the target weight (in grams).

that tells you if the weight is right for the size......

i will figure it for you hang on..i have to convert stuff first

at 5.5 he should be 520 grams... so let me try 5 inches

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at 5 inches his min weight should be 391.24 so your at 422 so your just fine..

You need to get the inches right on.. to be for sure..

 

[Madkins007]

Besides the Donoghue Ratio, I am trying to put together a chart of typical lengths and weights based on published information. The data is really scattered so this may take a bit, but hopefully we will have a chart that can help both show if your tort is on track, and maybe even help guess its age somewhat.

Oh- and I finally figured out how to use Excel to do the Donoghue Ratio automatically for me. In a column labeled DON/gr (Donoghue Ratio in grams), I entered the formula =D2-(A2^e*0.191) where D2 is the cell with the current weight in grams and A2 is the SCL length in cm.

I set it up to show the results with negative numbers in red, so I can see instantly how over- or under-weight my tort is in grams, then I used the 'autofill' function to copy the formula in every cell under the #2 level.

And WOW were some of my guys light. Dang. But they are doing much better now!

 

[llamas55]

if somebody could convert that ratio to oz it would be helpful for us math impaired. so is 6.25 length and 1# 15 oz ok or not?

 

[terracolson]

if somebody could convert that ratio to oz it would be helpful for us math impaired. so is 6.25 length and 1# 15 oz ok or not?

I am math illiterate as well, but i practiced this one....

since there are so many figures in here..give your information again

scl
and grams or oz i can use google to convert it..

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Pio my Cherry Head is 6 in. and 1lb 10 oz. and he's two years and 7 months old. I don't know how to do grams. Could you convert your weight for me into lbs?

terry, any time you need to convert go to google and type in the info

example copy and paste this string to check it out

1pound 10 oz
and it should pull up the answer

1 pound 10 ounces = 737.087601 grams

and the other way

convert 737 grams to pounds

answer:
737 grams = 1.62480687 pounds

 

[terryo]

Thank you Terra...I found a conversion chart. Pounds, oz.'s and inches are so much easier for me.

 

[terracolson]

i havent reached the pounds spot yet with my babies,

 

[Yvonne G]

Hi Alex (Tangale):

to the forum!!

 

[Madkins007]

I always think it is rather funny when people say that pounds and inches are 'easier', when metric is so much more accurate for measuring with, and so much easier to do any math with.

Especially when you probably already have a scale and a ruler that do metric!

Google will do conversions for you if you type it in like this:
13.4 inches in centimeters

For Llama- 6.25" is 16.5cm
16.5 cubed (^3) is 4492
4492 x 0.191 is 858 grams

1lb 15 oz is 858 grams, so you are right on the button.


However, if you NEED it in 'standard', try this formula:
LENGTH in inches, cubed, times 0.113 = WEIGHT in ounces

6.5 inches^3 is 275
275 x 0.113 = 31 oz (which is 1lb 15oz)

Note, however, that this will not be as accurate as the metric version because inches and ounces are less precise than cm and grams.


To try the new conversion # with Terryo's numbers to make sure it works OK:
6^3=216
216 x 0.113 = 24.4oz, his weighs 26 oz, so should be OK by 1.6oz

To confirm with the original
6"= 15.3cm
15.3^3=3582
3582x0.191=684
684gr. = 1.5lbs, or 1lb 8 oz, or 24 oz- just about what the above recommended.

OK, so it works well enough- does that help the metricphobes?

 

[llamas55]

I always think it is rather funny when people say that pounds and inches are 'easier', when metric is so much more accurate for measuring with, and so much easier to do any math with.

Especially when you probably already have a scale and a ruler that do metric!

Google will do conversions for you if you type it in like this:
13.4 inches in centimeters

For Llama- 6.25" is 16.5cm
16.5 cubed (^3) is 4492
4492 x 0.191 is 858 grams

1lb 15 oz is 858 grams, so you are right on the button.
THANKS, Mark in NE

However, if you NEED it in 'standard', try this formula:
LENGTH in inches, cubed, times 0.113 = WEIGHT in ounces

6.5 inches^3 is 275
275 x 0.113 = 31 oz (which is 1lb 15oz)

Note, however, that this will not be as accurate as the metric version because inches and ounces are less precise than cm and grams.


To try the new conversion # with Terryo's numbers to make sure it works OK:
6^3=216
216 x 0.113 = 24.4oz, his weighs 26 oz, so should be OK by 1.6oz

To confirm with the original
6"= 15.3cm
15.3^3=3582
3582x0.191=684
684gr. = 1.5lbs, or 1lb 8 oz, or 24 oz- just about what the above recommended.

OK, so it works well enough- does that help the metricphobes?

 

[tangale]

Tangent...that's another mathematical term that I remember from school =)

422 grams...should I be concerned about my rf's weight?

Thanks again!

 

[terracolson]

Tangent...that's another mathematical term that I remember from school =)

422 grams...should I be concerned about my rf's weight?

Thanks again!

I apologize if i didnt help before....

Did you get the exact measurement? We need to know if he is 5 or 5.5 inches!

 

[terryo]

Wow! I'm reading all this stuff, and I gotta say....1lb. 10 oz....6 in. Isn't that much easier? Why would anyone want to go through all that, and do all that extra work, just to get what I just posted in one second??? I'll stick with pounds and oz.

 

[terracolson]

alex wants to know if 422 grams is acceptable weight?
i cant submit his info into the formula to configure that with out the exact SCL size

just waiting on him to confirm 5 inches or 5.5 inches....

He just wants a "your ok" or " your "under weight"

 

[tangale]

terracolson, no apologies needed. your help is much appreciated.
he's closer to 5.5".
but following this thread, i'm starting to think underweight =(

 

[terracolson]

terracolson, no apologies needed. your help is much appreciated.
he's closer to 5.5".
but following this thread, i'm starting to think underweight =(

By that formula yes he woudl be.. Why dont you get his exact measurements..

 

[harwood]

I had always wondered if that formula was true, I once read it in a post on another forum but the person who posted it didn't know where it had come from

I've got to say metic is better though I mean you can measure down to 1/25th of an inch using cm and mm

 

[Madkins007]

I had always wondered if that formula was true, I once read it in a post on another forum but the person who posted it didn't know where it had come from

I've got to say metic is better though I mean you can measure down to 1/25th of an inch using cm and mm

The formula came from Dr. Susan Donoghue, a respected reptile nutritionist and has been peer reviewed. It is not perfect, but offers a good quick clinical tool.

 

[Michael Wolfe]

I know this is in the Redfoot/Yellowfoot forum... but is this ration considered applicable to others... my leopard for instance...