不同的粉结构对猪能量代谢的影响
Xiaoqian Gao1, Bing Yu1, Jie Yu1
1Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China.
Journal of animal science and biotechnology
|August 8, 2023
概括
猪食中粉氨基胺含量较高会增加净能量摄入量 (NE) 和能量保留量 (RE). 这表明富含氨基胺的饮食更有效地促进了猪的生长,特别是在晚期的生长阶段.
科学领域:
- 动物营养 动物营养
- 碳水化合物化学 碳水化合物化学
- 猪生理学 猪生理学
背景情况:
- 粉是主要的碳水化合物来源,包括粉和粉素,影响单胃动物的能量供应效率.
- 氨基百种素通常比粉素提供更高的能源供应效率,但其对猪网能量 (NE) 的影响需要进一步调查.
研究的目的:
- 用比较屠宰方法量化不同粉结构 (粉/粉蛋白比) 对猪净能量 (NE) 的影响.
- 根据猪食中的粉结构来估计NE的预测方程.
主要方法:
- 56个被分为7个组,其中一个初始屠宰组 (ISG) 和6个治疗组在28天内食不同粉素/粉素比率 (AR) 的饮食.
- 饮食包括基本饮食和半纯饮食,AR值为3.09,1.47,0.25,0.15和0.12.
- 净能量 (NE) 和能量保留 (RE) 用比较屠宰方法确定.
主要成果:
- 与高粉素组相比,高粉素饮食 (AR 0.15) 养的猪的最终体重显著增加,平均每日增加和料摄入量显著增加.
- 在AR0.15和0.12组中观察到更高的营养物质消化率 (干物质,原蛋白,总能量,原灰).
- AR 0.15 组的NE摄入量和能量保留 (RE) 显著更高,导致方程:RE = 1,235.243 - 48.298 ((AM/AP) (R2 = 0.657).
结论:
- 猪的净能量摄入量和能量保留量随着食中氨基菌素含量增加而增加.
- 富含杏仁蛋白的饮食对促进猪生长更有好处,特别是在后期的发育阶段.
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