09/19 Texas Gizmo PMPS=130, +2=85, +3.5=66, +4=64, +4.5=66, +5.5=89, +11=156

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LizzieInTexas

LizzieInTexas

Member Since 2016
09/18 + 11=132

No change between +11 and AMPS. I shot 1.25U (no greens last night). In fact, I restested the PS and is showed 123 :eek:

Hope everyone has a great day!
 
I need to know what carb % is the one that I should look at. I am confused between ME, dry matter and "as-fed".

These are for the Soulistic Pate and Shreds:
soul ME.JPG

soul AF.JPG

soul DM.JPG
 

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I hope Gizmo surfs safely today. I think he will be fine as he seems to be going lower at night than during the day. No help on the food, that confuses me too.
 
“Nutrient analyses expressed as “as fed” or “as received” include this water component. As the water content increases in a feedstuff, the amounts of other nutrients present per pound of that feedstuff decrease. In contrast, feed and forage nutrient analyses expressed as “dry matter” represent the percentages of nutrients present excluding water content. Dry matter content of a feedstuff is important because it reveals the actual amounts of various nutrients available to the animal consuming the feed. As fed represents the feed or forage as it is fed to the animal including the moisture content. While as fed is an accurate representation of the feed being offered, it does not provide a good indication of the nutrient composition of the non-water feed components, particularly when the moisture content is high. Consider the following examples of converting “as fed” to “dry matter”.

https://extension.msstate.edu/sites...ppi-articles-landing-page/stocker_feb2007.pdf

Dry Matter is the value for a nutrient assuming all moisture is removed. Dry matter is mostly used by veterinarians because it yields specific information on a more uniform basis. As Fed would be the value for a nutrient without removing the moisture.
 
Bronx's dad said:
Dry Matter is the value for a nutrient assuming all moisture is removed. Dry matter is mostly used by veterinarians because it yields specific information on a more uniform basis. As Fed would be the value for a nutrient without removing the moisture.
Click to expand...
So I should use the dry matter numbers?
 
You don't need the dry matter numbers since Soulistic already gives you the percent calories from carbs: 3.29%
When the companies don't supply that information, you have to pull the necessary numbers out of the dry matter and calories and know the number of calories per gram of fat, carb and protein.
 
Thank you for asking this! I've been banging my head against a wall about this for a while now...still don't really get it, but then, numbers always do my head in. I keep re-reading Dr Pierson's explanation and the calculations, but I still end up confused...

If you get a tutorial, please let me know! :-)
 
I had a post asking the same thing a while ago, if it's of any help. I basically rely on Dr Pierson's chart now, even though I'm in Australia, as the foods on the chart that we can get here come from the US anyway. Then I see how Girlie's BG levels react - that tells me a lot as well. But I'm looking forward to reading what others say here as well! Great question. :-)
 
The As Fed numbers (which are often on the can) do not usually show carbs. They include moisture.
To get carbs (when they aren't listed), you would sum up the reported As Fed percentages and subtract them from 100%.
You would use that missing amount as the % carbs.
For Soulistic chicken, you would have 9.55%protein, 8.17%, fat, 1%carbs. These are the nutrients providing calories, metabolizable energy.
We want our diabetic kitties to get most of their calories from protein and fat, not from carbs.

To get percent dry matter, subtract the moisture percent from 100%. For Soulistic chicken, this is 100-80.2=19.8.
To get protein % dry matter, 9.55/19.8=43.23%
To get fat % dry matter, 8.17/19.8=41.26%
To get carbs % dry matter, 1/19.8=5.05%
These 3 nutrients provide the metabolizable energy.

There is some variation for numbers to use as calories per gram of protein, fat, carb.
Let's use 4,9,4. (or 5.65,9.44,3.94)(or4,9.44,3.94)(protein digestion consumes some calories, so the 5.65 is reduced to 4 or something in between)
Total calories per gram=.4323*4+.4126*9+.0505*4=5.6446 calories per gram of dry matter,
1.7292 calories from protein per gram of dry matter, or 1.7292/(1.7292+3.7134+.202)=30.63% (vs table saying 31.43%)
3.7134 calories from fat per gram of dry matter, or 3.7134/(1.7292+3.7134+.202)=65.79% (vs table saying 65.3%)
.202 calories from carbs per gram of dry matter, or .202/(1.7292+3.7134+.202)=3.579% (vs table saying 3.29%)
1 gram=.0352739619 oz
There are .198 grams of dry matter per gram of wet food.
To get calories per ounce of wet food, (5.6446 calories per gram of dry matter) * (.198 grams of dry matter per gram of wet food)=1.1176 calories per gram of wet food.
(1.1176 calories per gram)/(.0352739619 oz per gram)=31.683 kcal per ounce of wet food
This gives me 95 kcal per 3 oz can, which is slightly off. Oh well. I might look at this later but it is very close.
(I'm using kcal and calories interchangeably.)

For CKD kitties, the dry matter is 0.83% phosphorus.
So for 1 gram of dry matter, there are .0083 grams of phosphorus.
That means .0083 grams of phosphorus per 5.6446 calories=.0083/5.6446=.001470 grams of phosphorus per calorie or .147 grams of phosphorus per 100 calories.
.147=147 mg. Dr. Pierson's table says 154 mg. Pretty close.

Probably I didn't do this as efficiently as possible. Might rewrite it when I have time.
 
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