한국초지조사료학회지 (Journal of The Korean Society of Grassland and Forage Science)

  • 제44권2호
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  • Pages.92-98
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  • 2024
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  • 2287-5824(pISSN)
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  • 2287-5832(eISSN)
한국초지조사료학회 (The Korean Society of Grassland and Forage Science)
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열풍 건조 국내산 알팔파 이용 TMR의 혼합 급여가 홀스타인 착유우의 반추 활동량, 우유 생산 및 성분에 미치는 영향

Effects of Mixed Feeding of TMR Using Hot-Air Dried Domestic Alfalfa on Rumination Activity, Milk Production and Quality in Holstein Dairy Cows

  • 엄준식 (농촌진흥청 국립축산과학원 낙농과) ;
  • 박성민 (농촌진흥청 국립축산과학원 낙농과) ;
  • 박지후 (농촌진흥청 국립축산과학원 낙농과) ;
  • 김동현 (농촌진흥청 국립축산과학원 낙농과) ;
  • 김상범 (농촌진흥청 국립축산과학원 낙농과) ;
  • 임동현 (농촌진흥청 국립축산과학원 낙농과)
  • Jun Sik Eom (Dairy Science Division, National Institute of Animal Science, RDA) ;
  • Seong Min Park (Dairy Science Division, National Institute of Animal Science, RDA) ;
  • Ji Hoo Park (Dairy Science Division, National Institute of Animal Science, RDA) ;
  • Dong Hyeon Kim (Dairy Science Division, National Institute of Animal Science, RDA) ;
  • Sang Bum Kim (Dairy Science Division, National Institute of Animal Science, RDA) ;
  • Dong Hyun Lim (Dairy Science Division, National Institute of Animal Science, RDA)
  • 투고 : 2024.06.03
  • 심사 : 2024.06.26
  • 발행 : 2024.06.30
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초록

본 연구는 수입산 알팔파와 열풍 건조 국내산 알팔파를 이용한 TMR의 혼합 급여가 착유우의 우유 생산량, 유질 및 반추 시간 비교 분석 등을 통해 열풍 건조 국내산 알팔파의 사료가치 평가를 수행하였다. 두 종류의 알팔파 내 TDN, NEL 및 체중은 차이를 보이지 않았고, 사료 섭취량은 열풍 건조 국내산 알팔파의 TMR 혼합 급여구에서 높았으며, 반추 활동 시간은 차이를 보이지 않았다. 우유생산량, 유지방과 유단백질 함량, FPCM, FE 및 SCC는 차이를 보이지 않았으며, 유지방 생산량과 lactose 함량은 열풍 건조 국내산 알팔파 TMR 혼합 급여구에서 높았다. 따라서 본 연구에서 이용된 열풍 건조 국내산 알팔파와 TMR의 혼합 급여는 착유우의 사료 섭취량, 반추 활동 및 생산성에 차이를 보이지 않았으므로, 열풍 건조 국내산 알팔파를 수입산 알팔파로 대체하여 착유우에게 이용될 수 있을 것으로 사료된다.

The objective of this study was to investigate the comparison of feeding a total mixed ration (TMR) containing imported alfalfa hay and TMR containing hot-air dried domestic alfalfa on rumination activity, milk production, and composition in lactating dairy cows. Ten Holstein dairy cows were divided into two groups: control (imported alfalfa hay + TMR) and treatment (hot-air dried domestic alfalfa + TMR) groups. The study was conducted over a total period of 18 days, including a 13-days adaptation period and a 5-days main experimental period. The results indicated no differences in total digestible nutrient and net energy intake between the imported and hot-air dried alfalfa. Body weight was not significantly different between the two groups (p>0.05), however, total feed intake and rumination time were significantly and tendentially higher in the treatment group compared with control group, respectively (p<0.001; p=0.075). Milk yield was not significantly different between the two groups (p>0.05), however, milk fat (kg) and lactose (%) concentration were significantly higher in the treatment group compared with control group (p=0.016; p=0.02). This study confirms that feeding TMR with hot-air dried domestic alfalfa results in no differences of feed intake, rumination activity, and milk productivity. Therefore, it is considered that hot-air dried domestic alfalfa can be used as a substitute for imported alfalfa on lactating dairy cows.

키워드

과제정보

본 연구는 농촌진흥청 연구사업(젖소 조사료 위주 사양에 따른 우유 품질 변화 및 반추위 환경 연구, PJ01489601)과 2024년도 농촌진흥청 국립축산과학원 전문연구원 과정 지원사업에 의해 이루어 진 것임.

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