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Changes in growth performance, carcass characteristics, and meat properties of Hanwoo steers according to supplementation of composite feed additive -
분야 자연과학 > 수학
저자 Jun-Sang Ahn Jong-Suh Shin Chang-Woo Lee Wook-Jin Choi Min-Ji Kim Jang-Gun Choi Gi-Hwal Son Sun-Six Chang Eung-Gi Kwon Byung-Ki Park
발행기관 충남대학교 농업과학연구소
간행물정보 Korean Journal of Agricultural Science 2019년, Korean Journal of Agricultural Science Vol.46 No.1, 11page~25page(총15page)
파일형식 3762872 [다운로드 무료 PDF 뷰어]
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연관 논문
RESEARCH: Open Access : Effects of forage level and chromium-methionine chelate supplementation on performance, carcass characteristics and blood metabolites in Korean native (Hanwoo) steers
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목차
부제 :
Abstract
Introduction
Materials and Methods
Results and Discussion
Conclusion
References
 
 
영문초록
This study was conducted to evaluate the effects of a composite feed additive (CFA) consisting of vitamin C, vitamin E, selenium, and choline on growth performance, carcass characteristics, and meat properties of Hanwoo steers. Twenty-two late fattening steers were randomly assigned to one of two dietary groups, control (commercial concentrate + rice straw) and treatment (commercial concentrate + rice straw + 50 g of CFA). Average daily gain (ADG) was 4.0% higher in treatment than that in control; however, there was no statistically significant difference. The supplementation of CFA had no effect on overall yield or quality traits of carcass. CFA had no effect on chemical composition, water holding capacity, shear force, cooking loss, or myoglobin values in longissimus muscle; however, the content of α-tocopherol was increased by supplementation of CFA (p < 0.01). The contents of α-linolenic acid and n-3 fatty acids were higher in treatment group than in control (p < 0.01). The ratio of n-6/n-3 fatty acids was decreased by supplementation of CFA (p < 0.01). The supplementation of CFA had no effect on pH or thiobarbituric acid reactive substances (TBARS) values in longissimus muscle (raw); however, TBARS (cooked) values were lower in treatment group than in control during refrigerated storage (p < 0.01). Thus, the results indicate that the supplementation of CFA (vitamin C + vitamin E + selenium + choline) had some positive effects on the increase in α-tocopherol and n-3 fatty in longissimus muscle, without any negative effect on growth performance or carcass characteristics of late fattening Hanwoo steers.
 
 
n-3 fatty acid, carcass characteristics, Hanwoo steers, TBARS(thiobarbituric acid reactive substances), α-tocopherol
 
 
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