Ask the Nutritionist: Dr. Getty's Forum for Equine Nutrition
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Ok, I am looking for a low starch feed for my mare and most likely my gelding. Out of the following three, which would you use and why? I have included the guaranteed analysis (comparing them) and stating which is the highest in what mineral / vitamin.
Note that The feed that has the highest of all the other minerals / vitamins / etc lacks these four. What would you do?
Lysine = An essential amino acid, C6 H14 N2O2
Methionine = A sulfur-containing essential amino acid, C5 H11 NO2S
Threonine = A colorless crystalline amino acid, C4 H9 NO3
Biotin = A colorless crystalline vitamin, C10 H16 N2 O3S
Ultium
Crude Protein min 11.70%
Lysine min
Methionine min
Threonine min
Crude Fat min 12.40% (HIGHEST)
Crude Fiber max 18.50%
Calcium [Ca] min 0.90%
Calcium [Ca] max 1.20%
Phosphorus 
min 0.50%
Salt (NaCl) Min
Salt (NaCl) Max
Copper [Cu] min 65
Selenium [Se] min 0.5
Selenium [Se] max 0.6 (HIGHEST)
Zinc [Zn] min 240
Vitamin A min 5000
Vitamin D3 min
Vitamin E min
Biotin min
Staystrong
Crude Protein Min 10.00%
Lysine min
Methionine min
Threonine min
Crude Fat Min 2.00%
Crude Fiber Max 20.00% (HIGHEST)
Calcium (Ca) Min 3.00% (HIGHEST)
Calcium (Ca) Max 4.00% (HIGHEST)
Phosphorus (P) Min 2.00% (HIGHEST)
Salt (NaCl) Min 5.50% (HIGHEST)
Salt (NaCl) Max 6.50% (HIGHEST)
Copper (Cu) Min 400 (HIGHEST)
Selenium (Se) Min 6.5 (HIGHEST)
Selenium [Se] max
Zinc (Zn) Min 1400 (HIGHEST)
Vitamin A Min 63000 (HIGHEST)
Vitamin D3 Min 5500 (HIGHEST)
Vitamin E Min 500 (HIGHEST)
Biotin min
Success LS
Crude Protein min 14.00% (HIGHEST)
Lysine min 0.70% (HIGHEST)
Methionine min 0.25% (HIGHEST)
Threonine min 0.50% (HIGHEST)
Crude Fat min 10%
Crude Fiber max 8.00%
Calcium (Ca) min 0.60%
Calcium (Ca) max 1.10%
Phosphorus (P) min 0.55%
Salt (NaCl) min 0.50%
Salt (NaCl) max 1.00%
Copper (Cu) min 50
Selenium (Se) min 0.55
Selenium [Se] max
Zinc (Zn) min 150
Vitamin A min 5000
Vitamin D3 min 900
Vitamin E min 65
Biotin min 0.32 (HIGHEST)
Where are you from? Michigan
How did you locate this forum? Repeat poster now...lol
Hi Cynthia!
You certainly did a lot of typing!!
The main factor in making a decision is the ingredient list, rather than the nutritional analysis. Any of these, if they are truly low starch, could be appropriate. The amount to feed needs to be taken into consideration along with the calorie needs of your horse, overall health, exercise level, amount and type of hay consumed, and more.
So, while I would be happy to answer your question, I really need more information that I can only obtain by spending some time with you over the phone. So, if you are agreeable, let's consider making an appointment.
All the best,
Dr. Getty
Where are you from? Bayfield, CO