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Effects of Dietary Protein Level on Velvet Antler Production in Red Deer(Cervus elaphus)

사료의 단백질 수준이 Red Deer(Cervus elaphus)의 녹용생산에 미치는 영향

  • Jeon, B.T. (Korea nokyong Research Center, Konkuk University) ;
  • Moon, S.H. (Korea nokyong Research Center, Konkuk University) ;
  • Hudson, R.J. (Department of Renewable resources, Faculty of Agriculture, Forest and Home Economics, University of Alberta, Edmonton)
  • 전병태 (건국대학교 한국녹용연구센터) ;
  • 문상호 (건국대학교 한국녹용연구센터) ;
  • Published : 2003.08.30

Abstract

Three dietary treatments were compared over two years to determine the effects of dietary protein levels and feeding patterns on velvet production in red deer (Cervus elaphus). The LL group received a 13% protein diet whereas the HH group received a 19% protein diet. The LH group switched from the low to high protein diet at the time of antler casting. Significant relationships were found between velvet production and the girth and length of main beam (p<0.01), daily growth rate of velvet (p<0.01), body weight at cutting time (p<0.05 in 1998 and p<0.01 in 1999), date of casting (p<0.01), and body weight and velvet production of the previous year (p<0.05 in 1998 and p<0.01 in 1999). Different levels of protein in diets in this study did not show statistically significant different effects in general. The girth of velvet, summed for top, middle and bottom of the main beam, tended to be thickest in HH for two years and thinnest in LL for 1998 and in LH for 1999. The main beam tended to be longest in HH at 46.3cm in 1998 and 45.2cm in 1999 and shortest in LH at 39.9cm in 1998 and 41.5cm in 1999. Velvet fresh weight tended to be highest in HH at 2,600$\pm$1,000g in 1998 and 3,038$\pm$867g in 1999 and lowest in LH at 2,287$\pm$826g in 1998 and 2,739$\pm$1,079g in 1999. Daily growth rate of velvet antler tended to be greatest in HH (43$\pm$16g/day in 1998 and 51$\pm$14g/day in 1999) and least in LH (38$\pm$15g/day in 1998 and 45$\pm$18g/day in 1999).

본 연구는 급여사료의 단백질 수준과 고단백질 사료의 급여시기가 레드디어의 녹용생산성에 미치는 영향을 검토하기 위해 급여사료의 단백질 수준을 13%(LL구)와 19%(HH구)로 달리하였으며 또한 단백질 함량 19%의 사료 급여시기를 각각 낙각 전(HH구)과 낙각 시점(LH구)으로 달리하여 사양실험을 실시했다. 녹용의 주간 둘레는 상대, 중대 및 하대 부위의 둘레를 합산한 평균치로서 1998년과 1999년의 실험 모두 HH구에서 가장 높았으나 나머지 두 처리구와의 사이에 유의적인 차이는 인정되지 않았다(P>0.05). 녹용의 주간 길이 역시 2년간의 실험에서 모두 HH구가 가장 길었고 LH구가 가장 짧았으나 유의성(P>0.05)은 인정되지 않았다. 급여사료의 단백질 수준에 따른 처리간의 차이는 인정되지 않았으나 녹용의 주간 둘레와 길이는 각각 녹용생산에 밀접한(P<0.01) 관계가 있는 것으로 분석되었다. 녹용생산성에 있어서는 1998년의 경우 HH구가 평균 2,600$\pm$1,000g으로서 가장 높았고 LH구가 2,287$\pm$826g으로 가장 낮은 생산성을 나타냈으나 처리간의 유의성(P>0.05)은 인정되지 않았다. 1999년의 실험에서도 HH구가 평균 3,038 $\pm$867g으로 가장 높은 생산성을 보였으며 LH구가 2,739$\pm$1,079g으로 가장 낮은 생산성을 나타냈으나 역시 처리간에 유의성은 인정되지 않았다. 일당 녹용생산량은 1998년의 경우 HH구가 43$\pm$16g으로 가장 높았고 LH구가 38$\pm$15g으로 가장 낮았으나 처리간의 유의성은 인정되지 않았다. 또한 1999년의 실험에서도 같은 경향이 나타났다.

Keywords

References

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