Thank you for your query.
The simple answer is to introduce more calories into the horses diets. I wouldn’t recommend changing the Fibrepro as it will be providing the horse with roughage which is helping the horses system work efficiently. What I would suggest doing is replacing the NRM Equine Balancer with NRM LowGIsport. This change will add calories to the ration without compromising the vitamins and minerals in the diet.
NRM LowGIsport is unique to most ‘cool feeds’ as it has a higher calorie level therefore perfect for your horses to gain condition. The majority of calories in NRM LowGIsport are derived from ‘cool’ energy sources in the form of fat and fibre. The supply of ‘cool’ energy comes from but isn’t limited to the super fibre beet pulp and the high fat stabilized rice bran supplement KER Equi-Jewel. NRM LowGIsport also contains a KER premix which means at the recommended intakes your horse will receive its daily requirements of vitamins and minerals except salt. If you have a salt block available for the horse it should sufficiently supply the horse with its daily requirement of salt.
The amount to feed the horses will depend on the workload and weight of your horses. The feeding recommendations can be found on the back of the bag.
I hope you find this information useful