Brood mares, foals, yearlings.

Spelling horses

Vitamins, minerals and amino acids for

  • Stallions
  • Young growing horses
  • Retired and spelling horses
  • Pregnant and lactating mares
  • For horses
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Price: From $96 inc GST

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Additional Information

Why use GroStance?

GroStance is scientifically formulated to provide the essential vitamins, minerals and nutrients required for overall health of stallions, pregnant or lactating mares and young growing horses.

GroStance takes into consideration that breeding horses and young growing horses have greater nutritional requirements than resting horses.

About the Ingredients

GroStance includes Amino acids for growth, development, protein production and muscle repair.

MSM provides the horse with sulphur, which has a role in general metabolism, protein synthesis, maintaining healthy mane, skin, hooves and joints.

Biotin has a role in general metabolism health and maintaining the integrity of the skin, mane and hooves.

Silica and Glucosamine Sulphate have a role in supporting normal skeletal growth and maintaining cartilage, mane, tail, hooves and eyes.

Trace minerals and Vitamins at optimum levels for growing and breeding horses.

Calcium and Phosphorus are included at a 2 : 1 ratio, which is considered ideal.


Will GroStance be perfect for you? Let TruGuide take all of the guesswork out of choosing the right products for your horse.
Take the short questionnaire and receive a custom balanced diet with product recommendations. 

GroStance should be introduced gradually into diet over a two week period. 
Add to feed, split into two feeds (morning and night) where possible. 
Always provide access to clean water. 

1 scoop = 40g

Spelling horses:
Morning feed:    3/4 x scoop (30g)
Night feed:         3/4 x scoop (30g)

Stallion, breeding and young horses:
Morning feed:    1 x scoop (40g)
Night feed:         1 x scoop (40g)

Pregnant and lactating mares:
Morning feed:    1 + 1/4 x scoop (50g)
Night feed:         1 + 1/4 x scoop (50g)

Recommended rates based on a 500kg horse, or horses that will grow to 500kg.

A propietary blend [Trace minerals and vitamins, Seaweed meal, Silica, Biotin , Glucosamine sulphate, Powdered coconut oil, Magnesium sulphate, Amino acids, Seaweed derived calcium, Dicalcium phosphate, Methylsulfonylmethane (MSM), Gamma oryzanol, Coconut meal] 40g

Calcium 117 g/kg
Silica 100 g/kg
Fat 76.0 g/kg
Phosphorous 56.0 g/kg
Lysine 31.3 g/kg
Threonine 20.1 g/kg
Methionine 20.0 g/kg
MSM 20.0 g/kg
Crude Protein 15.0 g/kg
Crude Fibre 15.0 g/kg
Magnesium 14.4 g/kg
Sodium 2.2 g/kg
Potassium 1.8 g/kg
Chloride 0.4 g/kg
Salt 0.0 g/kg
Glucosamine Sulphate 10000 mg/kg
Zinc 3487 mg/kg
Iron 2118 mg/kg
Manganese 2005 mg/kg
Gamma Oryzanol 2000 mg/kg
Copper 1165 mg/kg
Thiamine (B1) 800 mg/kg
Vitamin B6 800 mg/kg
Pantothenic Acid (B5) 736 mg/kg
Niacin 640 mg/kg
Riboflavin (B2) 480 mg/kg
Vitamin K 200 mg/kg
Folic Acid 80 mg/kg
Iodine 30 mg/kg
Chromium 23 mg/kg
Selenium 16 mg/kg
Cobalt 16 mg/kg
Biotin 16 mg/kg
Vitamin B12 1200 ug/kg
Vitamin A 400032 IU/kg
Vitamin D 39936 IU/kg
Vitamin E 9600 IU/kg

Support your breeding stock's nutritional requirements with GroStance

Breeding horses, including pregnant and lactating mares, stallions plus young and growing horses all have greater nutritional requirements than resting horses.  They require different levels of vitamins, minerals and amino acids.  Amino acids are required for growth, development, protein production and muscle repair. Horse's bodies manufacture 12 of the 22 required amino acids, so it is important to provide the other 10 'essential' amino acids through their feed.  Read more

How feeds affect fertility in mares

In general, mares come on season (cycle) every 21 days, and have a gestation of 340 days or 11 months. For a breeding mare, optimum fertility is a live foal every 12 months, and so there is window of opportunity (30 days) for mares to be served and become pregnant again. Mares can be served on foal heat (7 days after foaling) and then again on 21 day cycles. Read more

Feeding Foals and Weanlings

The motto for feeding young horses is optimal not maximal.  Overfeed a young horse with a high or unbalanced NSC diet could cause developmental disorders. Read more

Yearling Preparation

The purpose of this brochure is to assist owners and managers in preparing yearlings for sale. It could be said that the way yearlings are prepared for sale is a tradition with few questioning the process. Read more

Stud Management

The purpose of this article is to assist stud managers in improving the health and wellbeing of their breeding and performance horses whilst making savings of up to 30% off their feed bill. This article outlines common feeding practices that undermine business value and profits and we outline how studs can feed for overall commercial success.  Read more


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"Would love to thank Stance Equine for getting me onto this great product- GroStance!! I have to say i love anything that is proven to help my babies and is also extremely healthy! A few weeks back i messaged a staff member and told her i was despera.. Read More

“I purchased a three year old Brumby and wanted to provide him with feed and supplements that would encourage him to grow strong and healthy. Since adding GroStance to his daily feed my Brumby has developed beautifully. He now stands at 15hh and is s.. Read More

"GroStance is ahead of the game in embracing a low-GI solution with joint support for young growing horses to complement their life on pasture."- Cherry Read More

Looking for advice about our products?
The Stance team are here to help
If you have any questions at all about any products in the Stance Equitec range then please reach out to us and we will be happy to help you

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