The cereal-free build-up muesli
  • strengthens the immune system
  • muscle maintenance due to amino acids
  • organic trace elements
  • cereal free & without molasses
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marstall Senior-Aktiv is a cereal-free, highly digestible muesli, which is especially designed for the needs of old horses.It's an ideal feed for body reconditioning and maintenance whilst also supporting slower digestive and immune systems. Senior-Aktiv meets the senior horse's increased vitamin and mineral requirements and stimulates chewing, which is good for both the stomach and the psyche. This low-starch, low-sugar formula is an excellent feed for horses with delicate metabolisms.

Senior-Aktiv is a cereal-free muesli that offers targeted support for muscle maintenance.

Older horses need help maintaining muscle tone and substance, especially during winter and the coat changing season. Senior-Aktiv provides energy along with essential, easily digestible amino acids for 100% utilisation.

Older horses also need support with gut flora and gut activity to help their bodies absorb the valuable substances in their feed. marstall Senior-Aktiv also contains mannan-oligosaccharides and ß-glucans (MOS) in addition to traditional linseed. Studies show that these components of brewer's yeast cell walls form an intact biofilm on the intestinal mucosa, serving as a protective barrier for harmful substances. MOS also bind mycotoxins and pathogenic germs in the intestine so that they can be excreted. Furthermore, MOS are prebiotic, feeding good gut bacteria. Together, these properties support the immune system.

Senior-Aktiv's trace elements are organic and easily digestible. Naturally it's also designed to meet older horses' increased needs for zinc, selenium, and vitamin A. Senior-Aktiv is high-structure with no cereals, molasses or lucerne, making it ideal for horses with metabolic problems



Feed supplement for horses

Composition of marstall Senior-Aktiv

Grass dried at a high temperature, dry grape pomace (12%), soya bean meal, soybean flakes, linseeds, rapeseed oil, refined, open linseeds, rape oil meal, carrot flakes, Brewer’s yeast cell walls (Saccharomyces cerevisiae) (1,3%), calcium carbonate, Turmeric root (cut) (0,5%), vegetable oil (linseed oil, milk thistle oil)



Nutritional analysis and energy per kg 

Crude protein

17,50 %

pcd* crude protein

120,00 g

Crude fat

12,00 %

Crude fibre

16,40 %

Crude ash

7,20 %

Energy (DE)**

12,30 MJ

Energy (ME)**

10,50 MJ


0,60 %


0,30 %


0,10 %


0,20 %


3,70 %


6,60 %

Amino acids



0,95 %

SAS (Methionine + Cysteine)*

0,70 %


1,20 %


0,15 %


0,65 %

*precaecal digestibility = can be digested in the small intestine = available
**acc. to GfE 2014 (Society for Energy Efficiency)


Nutritional additives per kg 

Fat-soluble vitamins

Vitamin A

10.000,00 I.E.

Vitamin D3

950,00 I.E.

Vitamin E

800,00 mg

Vitamin K3

3,50 mg

Water-soluble vitamins

Vitamin C

600,00 mg

Vitamin B1

24,00 mg

Vitamin B2

9,00 mg

Vitamin B6/Pyridoxine Hydrochloride

23,00 mg

Vitamin B12/Cyanocobalamin

90,00 mcg


900,00 mcg

Folic acid

9,00 mg

Choline chloride

290,00 mg

Calcium D-pantothenate

30,00 mg


28,00 mg

Trace elements

Iron as monohydrate iron (II) sulphate

130,00 mg

Total copper:

50,00 mg

Copper as copper (II) sulphate pentahydrate

44,00 mg

Glycine-copper chelate, hydrate

6,00 mg

Total zinc:

266,00 mg

Zinc as zinc oxide

230,00 mg

Glycine-zinc chelate, hydrate

26,00 mg

Total manganese:

128,00 mg

Manganese as manganese (II) oxide

92,00 mg

Glycine-manganese chelate, hydrate

36,00 mg

Iodine as anhydrous calcium iodate

0,80 mg

Selenium as sodium selenite

0,60 mg

Selenium in organic form (Saccharomyces cerevisiae)

0,40 mg

Feeding recommendation

... as single concentrated feed

Light work

 approx. 200 to 250 g per 100 kg BW/day

Moderate work

 approx. 300 to 450 g per 100 kg BW/day

Heavy work

approx. 450 to 550 g per 100 kg BW/day

Example feed per day for a 600 kg horse as a single concentrated feed in addition to hay

Light work

 approx. 1,0 kg to 1,5 kg

Moderate work

 approx. 1,5 kg to 2,5 kg

Heavy work

approx. 2,5 to 3,0 kg

In case of hasty eaters, horses with feed envy, tooth problems etc. we recommend to feed Senior-Aktiv soaked. Then, for example, add 1 litre of warm or cold water to 1 litre of Senior-Aktiv and let it steep for 15 minutes.

Our marstall feeding experts recommend:marstall Senior-Aktiv can also be fed soaked as a mash if required. This is especially beneficial for horses that eat hastily, horses with dental problems or feed envy. For old horses that are no longer able to chew well, we also recommend our „Wiesen“products, soaked as a roughage substitute.

1 liter marstall Senior-Aktiv = approx. 400 g

Feeding advice

All specified feed quantities are to be given throughout the day in several small feeds.

Our recommendations assume a roughage intake (hay) of 1.5 kg per 100 kg body weight per day.




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Product recommendations

Tipps für alte Pferde

Bei Zahnproblemen

Senior-Aktiv kann natürlich auch eingeweicht verfüttert werden. Als Raufutterration bieten sich dazu eingeweichte Wiesen-Cobs an.

Darf ein bisschen mehr sein?

Die getreidefreie Ration kann mit Bergwiesen-Mash (ohne Getreide) ergänzt werden – das unterstützt die Verdauung zusätzlich. Benötigt das Pferd mehr Energie, eignet sich z. B. Lein-Distel-Öl.

Unser Tipp mit Getreide

Darf das Pferd auch im Alter Getreide bekommen, können Sie marstall Senior-Aktiv entweder mit Hafer, Gerstenflocken oder Maisflocken ergänzen oder unser Müsli Senior Plus füttern.

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