논문 상세보기
pp.61-67
This study was conducted to investigate the effect of supplementary feeding levels on livestck and forage productivity and grazing intensity in Elk stags (Cervus canadensis). A fifteen 2-year-old Elk stags about 195 kg were randomly assigned to one of three dietary treatments (five animals per treatment). The dietary treatments consisted of a feeding concentrate of 1.0% of body weight (T1), 1.5% of body weight (T2) and 2.0% of body weight. Total dry matter intake (TDMI) was increased with increased with an increasing supplementary feeding levels. Average daily gain (ADG) were significantly increased with an increasing supplementary feeding levels (p<0.05) and reached a maximum on July and was lower in spring than autumn. The velvet antler production was no differences among treatment groups. Forage productivity of pasture and crude protein content were highest on May and decreased thereafter, however, crude fiber content was the reversed. The grazing intensity of Elk stags was increased in spring (38 to 59 head per ha) than summer and autumn (13 to 32 head per ha). The average grazing intensity of Elk stags ranged from 21 to 34 head per ha, which is affected by supplementary feeding levels. This result suggests that feeding supplementary diet at 1.5 % of body weight was needed to maintain the stable wight gain in antler growing periods and control the proper grazing intensity of Elk deer stags.
Ⅰ. 서 론
Ⅱ. 재료 및 방법
1. 공시가축 및 사양관리
2. 방목사슴의 섭취량, 증체량 조사
3. 녹용생산량 측정
4. 방목초지의 사료가치 분석 및 방목강도 설정
5. 통계분석
Ⅲ. 결과 및 고찰
1. 섭취량 및 증체량 조사
2. 녹용생산성 조사
3. 엘크 수사슴의 적정 방목강도 설정
Ⅳ. 요 약
Ⅴ. 사 사
Ⅵ. REFERENCES
