饮食 Bacillus subtilis 通过调节肉的肌肉纤维类型和抗氧化能力,有利于肉质
Hairong Wang1, Chuanpi Xiao2, Jiqiang Li1
1College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, 271018, China.
Poultry science
|September 12, 2024
概括
饮食补充Bacillus subtilis (BS) 通过改善肌肉特征和抗氧化剂水平,提高了 brojler 肉质量. 这种益生菌改善了肌肉纤维类型,并提高了鸟类的整体抗氧化能力.
科学领域:
- 动物科学动物科学
- 营养科学 营养科学
- 食品科学 食品科学 食品科学
背景情况:
- 饮食干预对于优化家禽肉质量至关重要.
- 细菌细菌 (BS) 是一种益生菌,对动物健康和生产力有潜在的益处.
- 了解BS对肉质的影响背后的分子机制至关重要.
研究的目的:
- 为了评估饮食中Bacillus subtilis (BS) 对 brojiler肉质量的影响.
- 研究BS对肉肌纤维类型调节和抗氧化能力的影响.
- 阐明涉及到BS介导的肉质改进中的分子途径.
主要方法:
- 一百四十四个Arbor Acres雄性肉在35天内被食不同水平的BS (0,300或500毫克/公斤) 的饮食.
- 肉质的参数包括pH值,颜色,水容量和剪切力,这些参数是死后评估的.
- 免疫光染色和基因/蛋白质表达分析被用来检查肌肉纤维类型和与抗氧化剂相关的途径 (AMPK,Nrf2信号传递).
主要成果:
- 饮食BS显著改善了 brojler 肉的质量,通过增强肌肉pH值,肉色,保持水的容量和减少剪切力来证明这一点.
- 补充BS积极调节大腿肌肉中的肌肉纤维转化.
- BS增加了抗氧化酶活性 (谷氨酸过氧化酶,总抗氧化能力) 和降低了脂质过氧化 (甲),部分是通过激活Nrf2信号通路.
结论:
- 食补充Bacillus subtilis是改善 brojiler肉质量的有效策略.
- BS通过调节肌肉纤维类型和增强鸟类抗氧化防御系统来影响肉质.
- 这些发现凸显了BS作为家禽行业料添加剂的潜力.
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