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http://dx.doi.org/10.5333/KGFS.2020.40.1.44

Replacement of Imported Timothy Hay with Domestic Italian Ryegrass Silage in a Horse Feedstuff  

Kim, Ji Yung (College of Animal Life Sciences, Kangwon National University)
Son, Jin (Korea Agency of HACCP Accreditation and Services)
Lee, Bae Hun (National Institute of Animal Science, RDA)
Kim, Byong Wan (College of Animal Life Sciences, Kangwon National University)
Sung, Kyung Il (College of Animal Life Sciences, Kangwon National University)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.40, no.1, 2020 , pp. 44-49 More about this Journal
Abstract
This study was conducted to investigate the possibility of replacing imported Timothy hay (TH) with domestic Italian ryegrass silage (IRGS) as a horse feed considering feed quality, nutrient digestibility and feed price. Two experimental diets (TH and IRGS) were fed to six-headed Thoroughbred (body weight, 475.7±33.3kg) of the Korea Racing Authority of Wondang Stud Farm. The 3 head animals were assigned to Control group (TH) and Treatment group (IRGS), respectively. The nutrient digestibility was determined by the total collection method. IRGS is enough for using as a horse feed because its Relative feed value(RFV) was higher than TH and its fermentation quality is suitable for horses. Although no difference was observed in nutrient digestibility, Total digestible nutrients(TDN), and Digestible energy(DE) between Control and Treatment group (p>0.05), the fact that price of IRGS was much lower (53.7~62.4%) than that of TH indicates IRGS has competitive advantage over TH as a horse forage feed. The present study indicates that IRGS can be fully replaced with TH due to its superior economic value even though the similarity of its nutrient digestibility, TDN, and DE to TH.
Keywords
Horse; Italian ryegrass silage; Timothy hay; Nutrient digestibility; Replacement;
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Times Cited By KSCI : 4  (Citation Analysis)
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