잣나무 生枝葉사일리지 급여가 한우의 영양소 소화율, 사료요구율 및 도체성적에 미치는 영향
Effect of Pine Silage Feeding on Nutrient Digestibility, Feed Conversion and Carcass Traits of Korean Native Cattle
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본 시험은 산림 간벌 부산물인 잣나무 생지엽을 반추가축 사료로 이용하기 위하여 제조된 발효 생지엽(pine silage)의 한우 반추위내 in situ 분해율 및 in vivo 소화율, 사양성적 및 도체분석에 있어서 볏짚 대체효과를 규명하기 위하여 수행되었다. In situ 시험은 nylon bag 시료를 처리 당 4반복으로 하여, 반추위내에서 48시간 동안 발효시켰으며, in vivo 소화시험은 볏짚 급여구와 생지엽 silage구로 나누어 incomplete double turn over design에 의해 처리 당 5반복으로 수행되었다. 사양시험에서는 생지엽 silage에 대한 볏짚 대체비율을 4수준(0%, 25%, 50%, 75%)으로 나누어 한우수소 48두를 처리당 12두씩 완전임의로 배치하였으며, 시험종료 후, 도체분석을 하였다. 반추위내 in situ 조단백질 분해율은 생지엽 silage가 볏짚보다 높았으나(P<0.01), NDF 분해율은 오히려 낮았다(P<0.01). In vivo 건물, 조단백질 및 NDF 소화율은 처리간 차이가 없었다. 일당 증체량은 볏짚 급여구와 비해 생지엽 silage 25% 대체구를 제외한 모든 생지엽 silage 대체구에서 유의적(P<0.01)으로 높았다. 생지엽 silage 급여 및 급여수준은 사료 효율에 영향을 주지 않았다.도체성적에 있어서 통계적 유의차는 없었으나 근내지방도는 50% 생지엽 silage 대체구가 타 처리구보다 수치적으로 높고, 등지방 두께는 생지엽 silage 대체구가 볏짚 급여구보다 다소 두꺼운 경향을 보였다. 이상의 결과로부터 생지엽 silage를 한우의 조사료로서 사용할 경우, 볏짚과 50%씩 혼합해서 급여하는 것이 건물섭취량과 일당증체량에서 좋은 효과를 기대할 수 있는 것으로 조사되었다.
Abstract
The wastes (the needle leaves and branches) produced from thinning the forest were fermented under an anaerobic condition (pine silage) to utilize as a forage source of ruminants. An in situ trial was conducted with two ruminally fistulated Korean native cows by 4 replicates (2 bags per cow), and in vivo digestibility of pine silage was estimated with five Korean native steers by 5 replicates in incomplete double turn-over design. In order to investigate feed efficiency and carcass traits, forty eight Korean native bulls were assigned to four treatments (0%, 25%, 50%, 75% of pine silage) with a completely randomized design in 12 pens accommodating 4 animals per pen. The amounts of concentrate and roughage allowed to experimental animals were in the range of 2.5% and 0.6% of body weight, respectively. Animals had freely accessed to mineral block and water in stanchion barn.An in situ crude protein digestibility of the roughage sources when suspended for 48 hrs in the rumen was higher for feeding the pine silage than the rice straw, whereas NDF digestibility was vice versa. No differences between the treatments were observed in in vivo digestibilities of dry matter, crude protein and NDF. Daily body weight gain was significantly (P<0.01) higher for the pine silage substitutions compared with the rice straw feeding except for the 25% silage feeding. The pine silage feeding did not affect feed efficiency.In carcass traits, marbling score tended to be higher for the 50% pine silage treatment than the other treatments while back fat thickness tended to be the thinnest for the rice straw feeding. From these results, it may be recommended to substitute pine silage, as a forage source, for rice straw by 50 percent.
참고문헌 (25)
- "Pine needle effects on in vivo and in vitro digestibility of crested wheatgrass", pp.249~253 (1992)
- "Sensory qualities of meat In Muscle as Food" (1986), Academic Press Inc
- "Correlations of phenolic acids and xylose content of cell wall with in vitro dry matter digestibility of three maturing grasses", pp.1209~1213 (1984)
- "Soluble phenolic monomers in forage crops", pp.345~350 (1989)
- "Condensed tannins deter feeding by browsing ungulates in a South African savanna", pp.142~146 (1985)
- "Effects of ponderosa pine needle ingestion on uterine vascular function in late-gestation beef cows", pp.1609~1614 (1992)
- "Introduction to plant biochemistry" (1972), Pergamon Press
- "Inhibition of structural carbohydrate fermentation by forage phenolics", pp.74~80 (1985)
- "their adverse role in ruminant nutrition", pp.447~453 (1984)
- "Effect of hot environmental temperature on major mineral balance in dry cows", pp.940~945 (1986)
- "Optimum feeding of dairy animals for meat and milk The University of Georgia Press" (1973)
- "Studies on environmental effects of gene expression modulation of proline- rich protein biosynthesis in rat parotid glands by sorghums with high tannin levels", pp.3948~3952 (1983)
- "Wheat pasture bloat dynamics, in vitro ruminal gas production, and potential bloat mitigation with condensed tannins", 83, pp.1322~1331 (2005)
- "Aromatherapy for health professionals", pp.133~167 (1995), Churchill livingstone
- "Endocrine responses in cows fed Ponderosa pine needles and the effects of stress, corpus luteum regression, progestin, and ketoprofen.", 73(1), pp.198~205 (1995)
- "Bacterial Mechanisms to Overcome Inhibitory Effects of Dietary Tannins" (2005), Microb Ecol.
- "Bloat in cattle potential of dock as an antibloat agent in cattle", pp.227~235 (1989)
- "솔잎 첨가식이가 흰쥐의 혈청 지방질대사에 미치는 영향", pp.47~50 (1991)
- "출하체중 및 비육도지수가 한우 비거세우의 도체성적에 미치는 영향", 7, pp.84~92 (1996)
- "잣나무 생지엽 사일리지 급여가 거세한우의 반추위 발효성상 및 스트레스 관련 Hormone의 혈중 농도에 미치는 영향", 47(2), pp.253~260 (2005)
- "소나무와 관련된 전통 민간요법 숲과 문화연구회 편 소나무와 우리문화"
- "고급육 만들기" (2001), 농협중앙회 가축개량사업소
- "일본사양표준 육용우" (2000), 농림수산성농림수산기술회의사무국편
- "새로운 한우사육기술" (1997), 농촌진흥청 축산기술연구소
- "제 2장 축산물 등급판정", pp.45~65 (2004)