KOREASCHOLAR

Evaluation of Processing Characteristics and Feeding Effects of Italian Ryegrass-Based Pellets in Ruminants

Seung Hak Yang, Jeong Sung Jung, Ki Choon Choi, Sun Sik Jang, Jin Wook Lee
  • 언어ENG
  • URLhttp://db.koreascholar.com/Article/Detail/442609
PDF 원문보기
한국초지조사료학회지
Vol.45 No.2 (2025.06)
pp.146-152
한국초지조사료학회 (The Korean Society of Grassland and Forage Science)
초록

Italian ryegrass (Lolium multiflorum Lam., IRG) is a widely cultivated winter forage crop known for its high yield and nutritional value. This study evaluated the processing characteristics and feeding performance of IRG-based pellets in Hanwoo cattle (Bos taurus coreanae) and Korean native black goats (Capra hircus). IRG was harvested at the optimal growth stage and processed into two pellet formulations: IRG ≥80% (with up to 20% soybean meal) and 100% IRG. Feeding trials were conducted under ad libitum feeding conditions. Hanwoo cattle showed higher intake of 100% IRG pellets (7.9 kg/day/head) than IRG ≥80% pellets (7.5 kg/day/head, p<0.05), with similar average daily gain (0.9 ± 0.4 kg/day/head). Conversely, black goats exhibited significantly lower intake of IRG ≥80% pellets (54.6 g/day/head) compared to 100% IRG pellets (266 g/day/head), likely due to reduced palatability associated with soybean meal inclusion. These findings suggest that IRG pellets are suitable for Hanwoo cattle, while further optimization of pellet size and formulation is required to improve acceptance in goats. Future studies should assess long-term impacts on digestion, rumen fermentation, and metabolic responses.

키워드
IRG pelletsPalatabilityIntakeHanwooKorean native black goat
목차
ABSTRACT
Ⅰ. INTRODUCTION
Ⅱ. MATERIALS AND METHODS
    1. Experimental design and sample preparation
    2. Nutritional composition and physical propertiesevaluation
    3. Animal feeding trial
    4. Statistical analysis
Ⅲ. RESULTS AND DISCUSSION
    1. Nutritional composition and physical properties ofIRG pellets
    2. Effects of IRG pellet feeding on Hanwoo cattle
    3. Effects of IRG pellet feeding on Korean native blackgoats
Ⅳ. CONCLUSIONS
Ⅴ. ACKNOWLEDGEMENTS
Ⅵ. REFERENCES
저자
  • Seung Hak Yang(National Institute of Animal Science, RDA, Cheonan 31000, Korea) Corresponding author
  • Jeong Sung Jung(National Institute of Animal Science, RDA, Cheonan 31000, Korea)
  • Ki Choon Choi(National Institute of Animal Science, RDA, Cheonan 31000, Korea)
  • Sun Sik Jang(National Institute of Animal Science, RDA, Cheonan 31000, Korea)
  • Jin Wook Lee(National Institute of Animal Science, RDA, Cheonan 31000, Korea)