在低代谢能量的饮食中加入guanidinoacetic acid可以通过调节血清代谢物概况来提高能量利用效率,从而提高 brojlers 的生长性能
Sumei Cao1, Weizhen He1, Guanghai Qi1
1Laboratory of Quality & Safety Risk Assessment for Animal Products on Feed Hazards (Beijing) of the Ministry of Agriculture & Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
Journal of animal science
|January 17, 2024
概括
瓜尼迪诺酸 (GAA) 补充剂改善了在低代谢能量 (LME) 饮食中 brojler 的生长性能. 最佳剂量为0.04%的GAA通过调节肌酸代谢来提高能量利用和尸体特征.
科学领域:
- 动物营养 动物营养
- 禽畜科学 禽畜科学 禽畜科学
- 代谢生理学 代谢生理学
背景情况:
- 低代谢能量 (LME) 的饮食可能会损害肉的生长性能.
- 甘酸 (GAA) 是一种肌酸前体,对能量代谢有潜在的益处.
- 了解LME饮食养肉的GAA机制对于优化料配方至关重要.
研究的目的:
- 调查瓜尼迪诺酸 (GAA) 提高能源利用效率的机制.
- 为了确定GAA对肉生长表现的改善作用,当食低代谢能量 (LME) 饮食时.
- 在LME条件下确定肉的GAA最佳饮食水平.
主要方法:
- 576只肉被食基本饮食 (阳性对照,PC) 或LME饮食补充了0.02%0.08%的GAA.
- 分析了生长性能,料转化率 (FCR),尸体特征和血清生物化学参数.
- 在选定的治疗组 (PC,LME,0.04%GAA-LME) 中,使用热量计室评估了能源利用率.
主要成果:
- 根据剂量,GAA补充改善了FCR,减少了腹部脂肪,提高了乳腺和腿部肌肉产量.
- 最佳的GAA水平 (0.03%0.08%) 是积极调节的血清肌酸激酶 (CK),性酸酶 (ALP) 和乳酸脱酶 (LDH).
- 与LME饮食相比,0.04%的GAA-LME组显著改善了可代谢能量摄入量 (MEI) 和净能量 (NE).
结论:
- 摄入0.04%的GAA的食补充剂对于食LME饮食的 brojler来说是最优的.
- 通过提高能源利用效率,GAA提高了生长性能和尸体特性.
- 该机制涉及肌酸代谢的调节,由血清CK活性和氨酸度的增加证明.
相关概念视频
Overview of Metabolism
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Designing Growth Media for Bioreactors
Growth media provide essential nutrients that support cell growth and metabolism, thereby enhancing the yield of valuable products such as enzymes, antibiotics, and biomass. Designing an effective growth medium involves balancing all components to prevent nutrient limitations or toxic excesses, both of which can impair growth and reduce product yields.Composition of a Typical Growth MediumA typical growth medium contains carbon and nitrogen sources, salts, vitamins, trace elements, and...


