Happy Horse Nutrition

MyHappy.Horse

The Happy Horse Nutrition Podcast with Dr Nerida McGilchrist makes horse nutrition make sense. A PhD equine nutritionist with more than 25 years of experience feeding horses, Nerida shares practical feeding advice, explains the science in plain English, and interviews leading experts in horse health, welfare and nutrition. From gut health and supplements to performance feeding and common mistakes, each episode helps horse owners, breeders and trainers feed with more confidence.

  1. 1d ago

    70. Is Perennial Ryegrass Changing Your Horse’s Behaviour?

    Has your horse suddenly become anxious, spooky, reactive or unpredictable... despite being normally calm and sensible? In this episode, Dr Nerida explores how perennial ryegrass mycotoxins can affect horse behaviour, coordination and performance. Learn about lolitrem B and ergovaline, the toxins associated with ryegrass staggers, tremors, hypersensitivity, exaggerated startle responses, heat intolerance and dramatic behavioural changes. We also look at when perennial ryegrass pasture and hay pose the greatest risk, how quickly horses may improve once exposure stops, and whether mycotoxin binders can actually help. If your horse seems to have had a sudden “personality transplant”, their pasture or hay may be worth a closer look and this episode is definitely worth a listen! Testing pasture or hay for perennial ryegrass toxins Australia: Southern Scientific Services, Hamilton VIC – pasture toxin testing including lolitrem B and ergovaline. Phone 0408 363 061. Contact the laboratory before collecting/sending samples for current sampling instructions. USA: Oregon State University Endophyte Service Laboratory – quantitative testing for lolitrem B and ergovaline in pasture, hay and feed. https://emt.oregonstate.edu/endophyte-lab   📲 For help balancing your horse's diet, download the MyHappy.Horse App https://apps.apple.com/au/app/myhappy-horse/id6633422324   💖 If you found this episode helpful, please follow the Happy Horse Nutrition Podcast and  share it with a horse owning friend who is struggling with their horse's behaviour. 🌟 And we'd love you to leave us a rating and review, it helps us help more horse owners to find practical, science-based nutrition advice.

  2. Sep 1

    68. Gut Health: How Your Horse’s Hindgut Microbes Affect Performance

    Did you know the microbes living in your horse’s hindgut may be influencing how well they perform? In this episode, Dr Nerida explores research linking hindgut microbiome diversity, fibre fermentation and performance in horses. We look at studies in Thoroughbreds and trotters showing that higher microbial diversity and greater fibre-fermenting capacity are associated with better racing performance, while greater starch fermentation is linked with poorer performance. You’ll also learn practical ways to support a healthier, more diverse microbiome through forage, fibre diversity and smarter grain feeding. Whether you own a racehorse, performance horse or simply want to support better gut health, this episode may leave you in a state of mind-bogglement… which will make perfect sense once you listen. 😂💛 Research mentioned in this episode Leng et al. (2024)Early-life gut bacterial community structure predicts disease risk and athletic performance in horses bred for racingScientific Reports, 14:17124https://doi.org/10.1038/s41598-024-64657-6 Park et al. (2024)Comparison of the fecal microbiota with high- and low performance race horsesJournal of Animal Science and Technology, 66(2):425–437https://doi.org/10.5187/jast.2023.e45 Vasseur et al. (2024)Fibrolytic efficiency of the large intestine microbiota may benefit running speed in French trotters: A pilot studyPhysiological Reports, 12(21)https://doi.org/10.14814/phy2.70110 Hansen et al. (2015)High nutrient availability reduces the diversity and stability of the equine caecal microbiotaMicrobial Ecology in Health and Disease, 26:27216https://doi.org/10.3402/mehd.v26.27216 Grimm et al. (2020)Dietary composition and yeast/microalgae combination supplementation modulate the microbial ecosystem in the caecum, colon and faeces of horsesBritish Journal of Nutrition, 123(4):372–382https://doi.org/10.1017/S0007114519002824

  3. Jul 28

    63. Preventing Gastric Ulcers in Horses: Nutrition Strategies Beyond Forage

    Preventing squamous gastric ulcers takes more than just feeding enough forage. In this episode, Dr Nerida explains four additional nutrition strategies: feeding a balanced diet, controlling grain and starch intake, supplying high-quality protein, and using lucerne or alfalfa strategically. Plus she covers why grain is not automatically the problem, how key nutrients support stomach repair, and why lucerne is so valuable for gut health.  Here are some of the papers referenced: Effects of feeding alfalfa hay in comparison to meadow hay on the gastric mucosa in adult Warmblood horses https://pferdeheilkunde.de/files/20200105.pdf   Evaluation of diet as a cause of gastric ulcers in horses https://pubmed.ncbi.nlm.nih.gov/10895901/ Risk factors associated with equine gastric ulceration syndrome (EGUS) in 201 horses in Denmark https://pubmed.ncbi.nlm.nih.gov/19927579/ 📲 For help assessing your horse’s diet and making sure you are feeding a balanced diet to prevent gastric ulcers, download the MyHappy.Horse App https://apps.apple.com/au/app/myhappy-horse/id6633422324  💖 If you found this episode helpful we'd be so grateful if you would follow the Happy Horse Nutrition Podcast and  share it with a horse owning friend who is struggling with gastric ulcers. 🌟 And please leave us a rating and review, it helps us help more horse owners to find practical, science-based nutrition advice.

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The Happy Horse Nutrition Podcast with Dr Nerida McGilchrist makes horse nutrition make sense. A PhD equine nutritionist with more than 25 years of experience feeding horses, Nerida shares practical feeding advice, explains the science in plain English, and interviews leading experts in horse health, welfare and nutrition. From gut health and supplements to performance feeding and common mistakes, each episode helps horse owners, breeders and trainers feed with more confidence.