반추위 발효 조절 항생제 대체 물질이 한우 거세우 생산성과 육질특성에 미치는 영향
Effects of Dietary formulated feed Additive on Growth Performance and Carcass Traits in Hanwoo Steers
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The present study was conducted to evaluate the effects of dietary formulated feed additive on growth performance and carcass traits of Hanwoo steers. A formulated feed additive reported to reduce heat load in the rumen in our previous research was used (Cho et al., 2014). Total 32 herds of Hanwoo steers were assigned into two groups of control and treatment. Total mixed ration was provided as basal diet for cattle and 100 g of additive was supplemented on diet for treatment. Feeding trial was performed during 120 days before slaughter. For growth performance, 3 periods (0~90 days; 90~120 days; 0~120 days) were allotted and average daily gain, feed requirement and final body weight were determined. Loin meat between 12th and 13th rib was used for meat quality analysis after slaughtering. Only 1st period showed significantly improved growth performance of treatment (P<0.05) and there were no significant difference in other periods. At 3rd periods (overall), a trend of increased average daily gain was found at treatment (P=0.075). Carcass performance and quality did not show significant differences between treatment and control (P>0.05). In meat quality, treatment showed significant increment in all measured meat colors (P<0.05) and significantly less sharing force compared to the control (P<0.05). Although no significant difference in growth performance and carcass yield were found, remarkably improved economic status was detected in treatment group. In conclusion, it could be suggested that application of a formulated feed additive specialized in reduction of heat load in the rumen was able to increase economical balance through enhancing heat stress condition of ruminant and growth.
Abstract
The present study was conducted to evaluate the effects of dietary formulated feed additive on growth performance and carcass traits of Hanwoo steers. A formulated feed additive reported to reduce heat load in the rumen in our previous research was used (Cho et al., 2014). Total 32 herds of Hanwoo steers were assigned into two groups of control and treatment. Total mixed ration was provided as basal diet for cattle and 100 g of additive was supplemented on diet for treatment. Feeding trial was performed during 120 days before slaughter. For growth performance, 3 periods (0~90 days; 90~120 days; 0~120 days) were allotted and average daily gain, feed requirement and final body weight were determined. Loin meat between 12th and 13th rib was used for meat quality analysis after slaughtering. Only 1st period showed significantly improved growth performance of treatment (P<0.05) and there were no significant difference in other periods. At 3rd periods (overall), a trend of increased average daily gain was found at treatment (P=0.075). Carcass performance and quality did not show significant differences between treatment and control (P>0.05). In meat quality, treatment showed significant increment in all measured meat colors (P<0.05) and significantly less sharing force compared to the control (P<0.05). Although no significant difference in growth performance and carcass yield were found, remarkably improved economic status was detected in treatment group. In conclusion, it could be suggested that application of a formulated feed additive specialized in reduction of heat load in the rumen was able to increase economical balance through enhancing heat stress condition of ruminant and growth.
참고문헌 (19)
- Attebery, J. T., "Effects of Environmental Temperature, Controlled Feeding and Fasting on Rumen Motility1", J. Anim. Sci, 29(5), pp.734~737 (1969)
- Behrends, S. M., "Relationship of Temperament, Growth, Carcass Characteristics and Tenderness in Beef Steers", Meat Sci, 81, pp.433~438 (2009)
- Bernabucci, U., "Metabolic and Hormonal Acclimation to Heat Stress in Domesticated Ruminants", Animal, 4, pp.1167~1183 (2010)
- 조상범, "The Influence of Feed Energy Density and a Formulated Additive on Rumen and Rectal Temperature in Hanwoo Steers", ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES, 27(11), pp.1652~1662 (2014), 아세아·태평양축산학회[DOI]
- Destefanis, G., "Relationship Between Beef Consumer Tenderness Perception and Warner-Bratzler Shear Force", Meat Sci, 78, pp.153~156 (2008)
- France, J., "Quantatitive Aspects of Ruminant Digestion and Metabolism", pp.157~175 (2005), CABI
- Hong, K. S, "Combined Effects of VFA Composition of Rumen Fluid and Heat Exposure on Rumen Fermentation Characteristics and Tissue Responsiveness to Insulin in Sheep", Korean J. Ani. Nutr. Feedstuffs, 21(3), pp.271~284 (1997)
- 강세주, "성숙도와 근내지방도가 국내산 비육 한우의 육질에 미치는 영향", 동아시아식생활학회지, 20(2), pp.248~253 (2010), 동아시아식생활학회
- 김은중, "반추동물에서 발생하는 온실가스의 저감방안:총설", 한국유기농업학회지, 20(2), pp.185~200 (2012), 한국유기농업학회
- 김현섭, "여름철 고온스트레스 기간에 고 양이온 사료와 반추위 보호지방과 나이아신의 추가공급시 착유우의 유생산 및 체온조절에 미치는 영향", 한국동물자원과학회지, 48(4), pp.555~562 (2006), 한국동물자원과학회
- 이대근, "인지온도를 이용한 여름철 폭염 스트레스와 일 사망률 증가와의 관련성 연구: 1991~2005, 서울", 한국대기환경학회지, 26(3), pp.253~264 (2010), 한국대기환경학회
- Mbiriri, D. T., "Assessment of Rumen Microbial Adaptation to Garlic Oil, Carvacrol and Thymol Using the Consecutive Batch Culture System", J. Vet. Sci. Anim. Husb, 3(4), pp.1~7 (2015)
- Morignat, E, "Quantifying the Influence of Ambient Temperature on Dairy and Beef Cattle Mortality in France from a Time-series Analysis", Environ. Res, 140, pp.524~534 (2015)
- Russell, J. B., "Heat Production by Ruminal Bacteria in Continuous Culture and Its Relationship to Maintenance Energy", J. Bacteriol, 168, pp.694~701 (1986)
- Russell, J. B., "Quantitative Aspects of Ruminant Digestion and Metabolism", pp.229~261 (2005), CABI
- Schneider, P. L., "Influence of Dietary Sodium and Potassium Bicarbonate and Total Potassium on Heat-stressed Lactating Dairy Cows", J. Dairy Sci, 67(11), pp.2546~2553 (1984)
- Van Keulen, J., "Evaluation of Acid-Insoluble Ash as a Natural Marker in Ruminant Digestibility Studies 1, 2", J. Anim. Sci, 44(2), pp.282~287 (1977)
- Warriss, P. D., "The Relationships Between Initial pH, Reflectance and Exudation in Pig Muscle", Meat Sci, 20(1), pp.65~74 (1987)
- Yadav, B., "Impact of Heat Stress on Rumen Functions", Veterinary World, 6, pp.992~996 (2013)