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Online Journal of Veterinary Research©
(Including Medical and Laboratory Research)
Volume 27 (4): 233-237, 2023.
Stepwise formulation based on body weight, intake, maintenance, protein and energy and forage/concentrate for horses.
Arash Omidi, Mohammad Seyrafinia.
School of Veterinary Medicine, Shiraz University, Iran.
Omidi A, Seyrafinia M., Stepwise formulation based on body weight, intake, maintenance, protein and energy and forage/concentrate for horses, Onl J Vet Res., 27 (4): 233-237, 2023. We describe a stepwise formulation for adult horses based on body weight, dry matter intake, maintenance, protein, energy and forage/concentrate to satisfy National Research Council (NRC 2021) nutrient requirements for working and pregnant horses. Body weight was determined by weighbridge, height, girth and body length, dry matter as feed ingested % of weight for maintenance, energy as 2.5% + 4, crude protein in g/kg dry matter (%). For forage/concentrate ratio 1% of body weight forage daily, for maintenance 100% of diet but for working horses, stallions in breeding season, pregnant mares, and lactating mares at least 50% forage whereas intense work requires ~65% concentrate.
Key Words: Stepwise formula, requirements, working, stallion, pregnant mares.