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22대 대한민국 국회 국회정보길라잡이 국회의원검색
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Objective: The effects of carnosine synthesis on the structural and microstructural determinants of meat quality have not been studied to date. Therefore, this study aimed to investigate the effect of supplementation with carnosine synthesis precursors on the characteristics and microstructure of breast muscle fibers in slow-growing Korat chickens (KR).Methods: Slow-growing KR were fed a non-supplemented commercial diet (control group) or a commercial diet supplemented with 1.0% β-alanine, 0.5% L-histidine, or a combination of both 1.0% β-alanine and 0.5% L-histidine. At 10 weeks, KR were slaughtered, and the breast muscle was collected. Samples were fixed and extracted to study the microstructure, fat level, and porosity of the meat using X-ray and scanning electron microscopy, and real-time polymerase chain reaction was performed to analyze the expression of genes related to myofiber differentiation.Results: L-histidine supplementation significantly altered myofiber diameter and muscle fiber density and compactness by regulating muscle fiber-type differentiation via carnosine synthase (CARNS1) and myocyte enhancer factor 2C expression, as well as myogenic differentiation antigen and myogenic regulatory factor 5 expression. While excess L-histidine potentially stimulated CARNS1 to modify muscle fiber arrangement and tenderness in breast meat, dietary β-alanine supplementation alone or in combination with L-histidine supplementation induced a relatively less remarkable but not significant (p<0.05) effect on the breast meat characteristics studied.Conclusion: Interestingly, the combination of β-alanine and L-histidine supplementation had no effect on meat microstructure, meat porosity, and fat content in comparison with the control group. Thus, this combination had the best selectivity for improving meat quality. However, further studies are required to clarify the effects of carnosine levels on meat processing.

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기사명 저자명 페이지 원문 목차
Function of immune cells and effector molecules of the innate immune system in the establishment and maintenance of pregnancy in mammals : a review Soohyung Lee, Inkyu Yoo, Yugyeong Cheon, Eunhyeok Choi, Seonghyun Kim, Hakhyun Ka p. 1821-1833
Effect of precursor amino acids for carnosine synthesis on breast fiber microstructures and myofiber differentiation-related gene expression in slow-growing chicken Cindy Riou, Panpradub Sinpru, Chanadda Suwanvichanee, Boonyarit Kamkrathok, Chalermluck Phoovasawat, Catleya Rojviriya, Wittawat Molee, Amonrat Molee p. 1834-1847
Asparagine synthetase regulates the proliferation and differentiation of chicken skeletal muscle satellite cells Hangfeng Jin, Han Wang, Jianqing Wu, Moran Hu, Xiaolong Zhou, Songbai Yang, Ayong Zhao, Ke He p. 1848-1862
Genetic parameters for direct and maternal genetic components of calving ease in Korean Holstein Cattle using animal models Mahboob Alam, Jae-Gu Lee, Chang-Gwon Dang, Seung-Soo Lee, Sang-Min Lee, Ha-Seung Seong, Mina Park, Jaebeom Cha, Eun-Ho Kim, Hyungjun Song, Seokhyun Lee, Joonho Lee p. 1863-1872
Comparison of primordial germ cell differences at different developmental time points in chickens Wei Gong, Yichen Zou, Xin Liu, Yingjie Niu, Kai Jin, Bichun Li, Qisheng Zuo p. 1873-1886
Comprehensive analysis of lncRNAs modified by m6A methylation in sheep skin Jinzhu Meng, Jianping Li, Yuanyuan Zhao p. 1887-1900
Metabolomic and morphologic surveillance reveals the impact of lactic acid-treated barley on in vitro ruminal fermentation KE Tian, Dicky Aldian, Masato Yayota p. 1901-1912
Nicotinamide benefited amino acid metabolism and rumen fermentation pattern to improve growth performance of growing lambs YuAng Wang, Hao Wu, Yiwei Zhang, Mingfeng Fei, Zhefeng Li, Daxi Ren, Chong Wang, Xiaoshi Wei p. 1913-1922
Effects of organic and inorganic selenium mixes in pregnant sows on piglet growth, selenium levels in serum and milk, and selenium deposition in newborn piglet tissues Xing Hao Jin, Min Soo Park, Min Hyuk Jang, Cheon Soo Kim, Yoo Yong Kim p. 1923-1932
Effects of compatibility of Clostridium butyricum and Bacillus subtilis on growth performance, lipid metabolism, antioxidant status and cecal microflora of broilers during the starter phase Xu Zhao, Jiarong Zhuang, Faling Zhang, Hongtao Li, Juan Yu, Chengli Wang, Tengjiao Lv, Qingzhen Li, Jimei Zhang p. 1933-1944
Effect of increasing β-mannanase supplementation in diets containing copra meal on growth performance, meat quality, liver health, intestinal morphology, and nutrient utilization in broiler chickens Eun Cheol Lee, Kang Hyeon Kim, Min Sung Kang, Deok Yun Kim, Charline Mugeniwayesu, Dong Yong Kil p. 1945-1952
Effects of dietary capsaicin supplementation on growth performance, blood profile and carcass and meat quality of finishing pigs Siriporn Namted, Kanokporn Poungpong, Chaiyapoom Bunchasak p. 1953-1961
Prediction models for basal endogenous losses of crude protein and amino acids in pigs Noa Park, Hansol Kim, Beob Gyun Kim p. 1962-1969
Alpha toxin production potential and antibiotic resistance patterns of clostridium perfringens isolates from meat samples Tehreem Ali, Arslan Sarwar, Aftab Ahmad Anjum p. 1970-1978
Effect of supplemented paprika oleoresin solution on the physicochemical properties and shelf-life of boiled pork sausages with nitrite reduction Geon Ho Kim, Koo Bok Chin p. 1979-1986
Immunisation of the somatostatin gene alters hypothalamic-pituitary-liver gene expressions and enhances growth in Dazu black goats Ge Qin, Shiyong Fang, Xianqing Song, Li Zhang, Jiazhuo Huang, Yongfu Huang, Yanguo Han p. 1987-1999
Behavioral, physiological, and hormonal responses during pre-slaughter handling in goats : a comparison between trained and untrained handlers Pavan Kumar, Ahmed Abubakar Abubakar, Muideen Adewale Ahmed, Muhammad Nizam Hayat, Fakhrullah Abd Halim, Md. Moklesur Rahman, Mokrish Ajat, Ubedullah Kaka, Yong-Meng Goh, Awis Qurni Sazili p. 2000-2007

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