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

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
권호 표지
DOI QR코드

DOI QR Code

Effects of Supplementation of Trace Nutrients on Hanwoo Heifers (Bos taurus coreanae) under Hilly Pasture Grazing System

산지 방목기간 중 미량영양소 급여가 한우 암소의 생산성에 미치는 영향

  • Yang, Seung Hak (Hanwoo Research Institute, National Institute of Animal Science, Rural Development Administration) ;
  • Yang, Byoung Chul (Hanwoo Research Institute, National Institute of Animal Science, Rural Development Administration) ;
  • Chung, Ki Yong (Hanwoo Research Institute, National Institute of Animal Science, Rural Development Administration) ;
  • Jang, Sun Sik (Hanwoo Research Institute, National Institute of Animal Science, Rural Development Administration) ;
  • Lee, Eun Mee (Hanwoo Research Institute, National Institute of Animal Science, Rural Development Administration) ;
  • Cho, Sang Rae (Hanwoo Research Institute, National Institute of Animal Science, Rural Development Administration) ;
  • Lee, Suk Dong (Hanwoo Research Institute, National Institute of Animal Science, Rural Development Administration) ;
  • Park, Hyung Soo (Grassland & Forage Division, National Institute of Animal Science, Rural Development Administration) ;
  • Kwon, Eung Gi (Hanwoo Research Institute, National Institute of Animal Science, Rural Development Administration)
  • 양승학 (국립축산과학원 한우연구소) ;
  • 양병철 (국립축산과학원 한우연구소) ;
  • 정기용 (국립축산과학원 한우연구소) ;
  • 장선식 (국립축산과학원 한우연구소) ;
  • 이은미 (국립축산과학원 한우연구소) ;
  • 조상래 (국립축산과학원 한우연구소) ;
  • 이석동 (국립축산과학원 한우연구소) ;
  • 박형수 (국립축산과학원 초지조사료과) ;
  • 권응기 (국립축산과학원 한우연구소)
  • Received : 2016.09.14
  • Accepted : 2016.11.18
  • Published : 2016.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

This study was conducted to ameliorate the productive performance of Hanwoo cow using hill pasture grazing system. Twenty seven animals aged 9 were designed to divide with 3 groups which were Control (restricted concentrate and hay for 5 months), T1 (restricted concentrate and pasture grazing ad libitum for 5 months) and T2 (restricted concentrate, 30 g/head of mineral nutrients and pasture grazing ad libitum for 5 months). Average daily gains increased higher in the order of T2, Control and T1. The conception rate of Control, T1 and T2 after artificial insemination during post-grazing period were 88.9%, 100%, 100%, respectively. In conclusion, the results indicated that hill pasture grazing system might enhance not only the productive performance of Hanwoo cow but also profit for conventional feeding system.

본 시험은 한우연구소 시험우사와 표고가 700 m 지역에 위치한 개량목초지 (오차드그라스, 티머시, 톨페스큐 우점)에서 2014년 5월~10월동안 수행되었는데, 방목 처리구별 방목지를 선정하고 3구역으로 나눈 후, 방목지 초지식생을 고려하여 윤환방목을 4회 (1회당 38.5일) 실시하였다. 국립축산과학원 한우연구소에서 암소 육성우 및 성우 27두(시험구별 9두)를 공시하여 2014년 5~10월동안 수행하였다. 방목대상지는 오차드그라스, 티머시, 톨페스큐가 우점한 해발표고 700 m의 개량목초지를 이용하였다. 시험구 배치는 대조구, 처리1구, 처리2구로 구분하였으며, 대조구가 우사관리구 (건초급여와 농후사료급여), 처리1구는 방목사육과 농후사료 급여구, 처리2구는 방목사육과 농후사료 급여와 미량광물질제 급여구로 처리하였다. 본 연구에 사용된 미량광물질제는 마그네슘, 셀레늄, 반추위보호콜린이 포함된 시제품제제 (30g/두/일)를 급여하였다. 사료급여기준은 2012 한국 사양표준 (한우)에 따라 성장단계별 표준 목표체중 도달 또는 체중별 영양소요구량 충족을 위해 영양조절 급여를 수행하였다. 처리구별 방목지를 선정하고 각 세부적으로 3구역으로 나눠 5~10월 중 윤환방목을 실시했다. 측정항목은 생초수량, 체중, 사료섭취량, 혈중 대사물질, 경제성 분석, 수태율을 실시하였다. 윤환방목지의 생초수량 및 건물수량은 처리1구와 처리2구의 생초 총 생산량은 30,473.9 kg/ha, 30744.3 kg/ha였으며 방목지간의 차이를 보이지 않았다(P>0.05). 한우 14개월령 목표체중 240 kg에 모든 처리구가 도달했으며 생후 15개월령 체중은 대조구, 처리1구, 처리2구가 각각 259.9, 257.7 및 262.1 kg였다. 일당증체량은 대조구, 처리1구, 처리2구가 각각 평균 0.52, 0.51, 0.54 kg으로 시험구간에 차이가 없었다. 혈중 대사물질 중 글루코스의 함량이 처리1구(방목사육)에서 높았다. 수태율은 대조구, 처리1구, 처리2구가 88.9%, 100%, 100%였다. 시험구 간에 경제성 분석을 실시한 결과 두당 비용절감이 대조구에 비해 시험1구와 시험2구가 각각 143,790, 125,970원으로 나타났다.

Keywords

References

  1. Hutjens, M. 2001. Successful feeding systems for dairy. Hoard W.D. & Sons, Fort Atkinson, WI, USA.
  2. Kang, S.W., Jang, S.S., Chung, Y.H., Shin, K.J. and Son, Y.S. 1995. Effect of concentrate feeding levels by growth stage on feed efficiency, MET quantity and quality in growing fattening Korean native bulls. Korean Journal of animal nutrition & feedstuffs. 19(6):495-506.
  3. Kang, S.W., Im, S.K., Woo, J.S., Jeong, J.W. and Son, Y.S. 2001. Effect of pasture grazing and concentrate feeding levels for 6 months of growing steps on growth performance and carcass characteristics in Autumn born Hanwoo steers. Jounal of Animal Science and Technology. 43(5):681-694.
  4. Kang, S.W., Im, S.K., Jeong, J.W., Jang, S.S. and Jeon, K.J. 2003. Effect of the level of concentrates and pasture grazing on growth, feed efficiency and reproductive performance in Autumn born Hanwoo heifers. Jounal of Animal Science and Technology. 45(6) 975-986. https://doi.org/10.5187/JAST.2003.45.6.975
  5. Korean Statistical Information Service, KOSIS. 2014. http://kosis.kr/statisticsList/statisticsList_01List.jsp?vwcd=MT_ZTITLE&parentId=F
  6. Ministry of Agriculture, Food and Rural Affairs, MAFRA. 2013. National Report of Work Plan to invigorate pasture grazing system in livestock. 2013.
  7. Michaela, S., Pavla. H., Vilem, P. and Michal., H. 2013. Grazing behavior and performance of beef cattle as a function of sward structure and herbage quality under rotational and continuous stocking on species-rich upland pasture. Animal Science Journal. 84:622-629. https://doi.org/10.1111/asj.12048
  8. National Institute of Animal Science (NIAS), R.D.A. 2012. Korean Feeding Standard for Hanwoo.
  9. National Institute of Animal Science (NIAS), R.D.A. 2015. Early activation of graafian follicle in cow and analysis of fertilization ability in bull semen. pp. 56-60.
  10. Realini, C.E., Duckett, S.K., Brito, G.W., Dalla Rizza, M. and De Mattos, D. 2004. Effect of pasture vs. concentrate feeding with or without antioxidants on carcass characteristics, fatty acid composition, and quality of Uruguayan beef. Meat Science 66:567-577. https://doi.org/10.1016/S0309-1740(03)00160-8
  11. Stricklin, W.R. and Kautzscanavy, C.C. 1984. The role of behavior in cattle production : a review of research. Applied Animal Ethology. 11:359-390. https://doi.org/10.1016/0304-3762(84)90043-9
  12. Waldner, C.L. and Van De Weyer, L.M. 2011. Selenium status at the end of the grazing season, reproductive performance and degenerative myopathy in beef herds. Canadian Veterinary Journal. 52(10):1083-8.