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Finnish study looks at using grains in horse diets

24-12-2014 | |
Finnish study looks at using grains in horse diets
Finnish study looks at using grains in horse diets

Including cereals in the diet of horses increases the apparent digestibilities. However, the effects per grains differed, Kentucky Equine Research reports.

The study, conducted at the Agricultural Research Centre in Finland looked at the difference in ration digestibility when different grains were fed. Six mature Finnhorses used in the study were fed three times a day to meet Finnish nutrient requirements for light work. Diets were based on hay silage alone or hay silage with 33% oats, naked oats, barley, wheat, or corn on a dry matter basis.

Dietary treatments were assigned to horses in a 6 x 6 balanced Latin square design. A preliminary feeding period of 23 days was followed by a five-day collection period. Representative fecal samples were taken twice a day during the collection period. Lignin was used as an indirect marker for the estimation of apparent digestibility. The mean dry matter (DM) and organic matter (OM) digestibilities of hay silage were 0.580 g/kg-1 and 0.594 g/kg-1, respectively.

Including cereals in the equine diet increased the apparent digestibilities of nutrients, but the effect was different for various grains. Inclusion of naked oats, wheat, or corn to the diet had the greatest improvement in digestibility, with organic matter digestibilities being 0.728 g/kg-1, 0.728 g/kg-1 and 0.726 g/kg-1, respectively.

Inclusion of barley in a hay silage diet improved OM digestibility eleven percent and that of oats six percent. Differences in protein digestibilities were somewhat smaller, but the order of the grains was similar. Barley had better crude protein digestibility than corn. The diet containing naked oats had the highest digestibility of crude protein, 0.812 g/kg-1. Naked oats seemed to be comparable to wheat based on diet digestibilities.

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Koeleman
Emmy Koeleman Freelance editor





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