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  • CNC BREEDING BOOST Natural Selenium

CNC BREEDING BOOST Natural Selenium

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£24.10
£24.10
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A trace mineral with a powerful role in breeding health. Widely used by proactive owners looking to optimise fertility & pregnancy outcomes. Valued during mating preparation, throughout pregnancy & for supporting semen quality in stud dogs. When paired with Vitamin E (in our Organic Wheatgerm Oil), it supports healthy cells, antioxidant function & reproductive wellbeing. As demands for this nutrient rise in late pregnancy, many choose to include it as vital part of their breeding routine for tricky females.


And our long-awaited, new & improved formula is here to support your dog even better!


We offer tailored advice for your dog - please complete the form below to order.

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Further Information

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Why do owners give their dogs BREEDING BOOST?
Selenium is an essential trace mineral for both dogs and bitches, playing a critical role in reproductive health.
For stud dogs, Selenium is commonly included as part of a feeding plan to support semen quality and help improve consistency across matings. It’s particularly popular with owners of dogs preparing for natural matings or chilled semen collections.
For breeding bitches, Selenium is often used during the lead-up to mating and through pregnancy, to support foetal development and maintain healthy antioxidant status — especially when paired with Vitamin E, which is found in our CNC Organic Wheatgerm Oil.
Some breeders choose to add Selenium into their dog’s plan following a missed mating, small litter, or previous pregnancy complications, as part of a wider feeding strategy ahead of next season.
Why is yours so good?
Each CNC BREEDING BOOST capsule contains 100μg of Selenium in the well-absorbed, organic food-form L - not the synthetic selenate commonly used in cheaper alternatives - making it gentle and bioavailable.

While other products may use generic blends or include cheaper synthetic fillers, ours is made with just two ingredients: 100μg of natural, organic food-sourced Selenium yeast and the vegetable capsule! That’s it — no added sugars, flavourings, binders, or E-numbers.

Our's is designed specifically with your breeding dogs in mind:
✓ Easy to tailor by weight and reproductive stage
✓ Clear dosing guidance provided for both stud dogs and bitches
✓ Capsules can be pulled apart and fed in food or liquids — no force feeding needed
This is a clean, purposeful supplement for owners who want to do things properly.
What are the ingredients?
Our new and updated formula is even better than before! Each capsule now contains:
  • 100µg Selenium 
  • Vegetable Cellulose Capsule Shell​
That’s it — no fillers, binders, artificial flavourings or preservatives. Just three carefully selected ingredients chosen for purity and compatibility with breeding dogs.

What is your new formula?
We’ve updated our BREEDING BOOST Natural Selenium formula to make it even more effective, versatile, and breeding optimised.
  • Although many loved our previous product, we knew we could make it even better! 
  • So.... We’ve welcomed our new formula! We use selenium yeast, an organic food form of selenium that is highly bioavailable - and importantly, it’s a form that is very well backed by studies in dogs, with renowned research in the last decade clearly demonstrating its huge benefits for fertility and semen quality.
This change also brings extra advantages:
  • Smaller capsule size - with 60 capsules per packet that are much easier to give, and especially helpful for owners with small-breed dogs where precise dosing matters.
  • No unnecessary fillers - by swapping products we eliminated the rice flour (505 mg) that was previously used as a filler, making this a cleaner, purer supplement suitable for even more dogs.
So it's the same fertility-focused support your dogs needs, now in a form proven in even more canine studies, with smaller, cleaner capsules that make accurate dosing simple. If you'd like to read more, you can do here.

Suggested Feeding Guidance

  • Studs
  • Bitches
  • Quantity
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For Stud Dogs: Suggested amount is ½ capsule per 10kg body weight daily, starting ideally 12 weeks before planned use.

Each capsule contains 100μg of natural, organic food-sourced Selenium yeast in its highly bioavailable form! No fillers, no additives, no syringes, no synthetics and no mess.

Now in our easy to feed, smaller capsules to make supplementing more convenient - they're even designed so you can pull them apart for fussy eaters!
Suggested for proactive pregnancy preparation & support, and management for low fertility bitches.
  • To prepare for breeding: Give ½ capsule per 10kg daily, in the months leading up to a planned mating.
  • To support pregnancy: From the day of mating, reduce to ¼ capsule per 10kg daily until birth.
You'll receive tailored usage guidance with your order to help get the quantity right for your dog.

Each capsule contains 100μg of natural, organic food-sourced Selenium yeast in its 
highly bioavailable form! No fillers, no additives, no syringes, no synthetics and no mess.

Now in our easy to feed, smaller capsules to make supplementing more convenient - they're even designed so you can pull them apart for fussy eaters!
Our CNC BREEDING BOOST Natural Selenium contains 60 capsules. ​This will last an average sized dog a 2 month supply, or a small dog 6 months.
​
Each capsule contains 100μg of natural, organic food-sourced Selenium yeast in its highly bioavailable form! No fillers, no additives, no syringes, no synthetics and no mess. Now in our easy to feed, smaller capsules to make supplementing more convenient - they're even designed so you can pull them apart for fussy eaters!
Many breeders will proactively pair CNC BREEDING BOOST with our CNC Organic Wheatgerm Oil and CNC BEE READY to optimise the pre-breeding preparations.


What Owners are Saying...

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Preparation Bundle BITCH BOOST

Only a few left!

Three targeted supplements. One essential pre-breeding plan.


Combining our most trusted fertility-focused supplements into one simple, effective routine — this trio is designed to support healthy reproductive function, hormonal balance, and optimal fertility ahead of mating. Ideal for any pre-breeding routine and especially for bitches who’ve previously missed or need that little extra support.


Whether it’s her first mating or you’re hoping for a smoother start than last time, this bundle gives her the best support, naturally.


Save over £10 with this curated trio of:
  • CNC Organic Wheatgerm Oil - Natural vitamin E support
  • CNC BEE READY Royal Jelly - The fertility milk of nature
  • CNC BREEDING BOOST Natural Selenium - Pre-Breeding nutritional balance


Please fill in your girl’s details below to complete your order so we can offer tailored usage guidance, to maximise her chances of success.
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On Sale

On Sale

Super Stud Bundle

Only a few left!

Three powerful stud supplements. One simple routine.

This bundle brings together our most trusted trio of fertility-focused products — designed to give your dog the very best nutritional support.


Whether you’re preparing a proven stud or supporting a younger male’s first matings, this offers a simple, effective routine to enhance semen quality and support reproductive health. Used by breeders across the UK, these high-quality, natural supplements are a go-to in any serious stud dog’s prep.


Saving over £10, this includes the ultimate trio of:

  • CNC Organic Wheatgerm Oil - The superstar of natural oils
  • CNC BEE READY - Pre-breeding support, the natural way
  • CNC BREEDING BOOST - Powerful player in breeding health


Please fill in your dog’s details below to complete your order and receive tailored usage guidance to maximise his chances of producing a healthy litter.

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On Sale

On Sale

Natural Pregnancy Bundle

Only a few left!

Natural support from pregnancy to whelping, for your girl and her puppies. Designed to support healthy development, hormone balance, and maternal condition — with our best-selling supplement combination, trusted by breeders from the moment pregnancy is confirmed.


With a saving of over £10, the Pregnancy Bundle includes:

  • CNC FOLIC FORCE (Standard Pack) – Support for foetal development
  • CNC NATURAL Raspberry Leaf – Uterine preparation
  • CNC BREEDING BOOST Selenium – Reproductive health & resilience
  • CNC ORGANIC Wheatgerm Oil  – Implantation, condition & Vitamin E

See below for suggested uses.


We proudly offer tailored advice so please fill in the details below to add the item to your basket. 

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Need help choosing the right combination? Join our Breeding Support Club for expert guidance, fortnightly Q&A calls, personalised advice and even discounts on our products!
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​This is a food supplement for dogs and not a veterinary medicine. It is not intended to treat or prevent any medical condition. Information provided is based on traditional use and breeder experience, it does not intend to take the place of a diagnosis and treatment by a qualified vet.
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Review submitted on 28/05/25 by Caroline
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"I've started my girl on your natural supplements today to get her in tip top condition. I can't wait - and so it begins! I use your supplements each time, thank you so much."
CNC Breeding Boost, Organic Wheatgerm Oil

Review submitted on 08/05/25 by Jennifer
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"Marvellous coaching - I've learned a lot about important supplements for breeding. What fantastic, natural supplements! Thank you so much 😘 ⭐️⭐️⭐️⭐️⭐️ 5 stars"
WHELP WISE, FLOWTIME, Natural Raspberry Leaf, Natural Folic Acid, BREEDING BOOST, Organic Wheatgerm Oil

Review submitted on 12/12/24 by Sandy
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"Thank you! These supplements definitely helped after two failed misses (CNC Bee Ready, CNC Breeding Boost, CNC Organic Wheatgerm Oil). These brilliant supplements form an important part of my girl's year round support."

Review submitted on 26/10/24 by Tracy
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"I was recommended BREEDING BOOST due constant misses or small litters (if we were lucky). This supplement (along with the others in the Bitch Boost Preparation Bundle) have improved our girls' ability to conceive and hold litters. We've also used this BREEDING BOOST Selenium on our stud boys (in the Super Stud Bundle) and have seen improved fertility too with these high quality products! Absolutely 5 stars!"
​⭐️⭐️⭐️⭐️⭐️ 5 Stars

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​CNC HQ, PO BOX 753, TUNBRIDGE WELLS, KENT, TN9 9XL, UNITED KINGDOM 
  • Home
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  • Shop
    • All Products
    • Pet Support
    • Stud Support
    • Bitch Support
    • Pre-Breeding Prep
    • Pregnancy Support
    • Whelping Support
    • Bundles
    • About >
      • Raspberry Leaf
      • Calcium WHELP WISE
      • Calcium CALCI POWER
      • Organic Wheatgerm Oil
      • Royal Jelly BEE READY
      • Folic Acid
      • Natural Selenium
      • Soothing Slippery Elm
      • Fenugreek FLOWTIME
      • Super Stud Bundle
      • Preparation Bundle
      • Pregnancy Bundle
      • Whelping Bundle
      • Holistic Breeding Bundle
      • Pregnancy & Puppy Worm Kit
      • Worming Kit
      • Coaching Call
  • Breeding
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    • Breeding Club >
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    • Which Club?
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