新西兰研究团队的最新研究表明，采用功能性多样性放牧系统饲养牲畜，能够改善动物产品的生化成分，进而对食用者的健康产生积极影响。1
研究人员对比了功能性多样性放牧与传统放牧系统，发现使用多种草料物种的放牧方式能改善动物产品的生化成分。该系统在绵羊中将氮流失减少约30%，在奶牛中减少42%。1来自功能性多样性系统的鹿肉表现出抗氧化和抗炎特性增加27倍，氧化应激调节代谢物增加59倍；牛奶中有益代谢物水平也得到提升。1功能性多样性系统还将与心脏病和痴呆症风险相关的化合物水平降低一半。1
人类喂食试验进一步证实了这些益处。食用功能性多样性系统饲养的牛肉的消费者体内循环代谢物中，胆固醇代谢、血管功能和能量调节相关指标升高；1食用该系统饲养羊肉的消费者则出现神经保护、心血管健康和抗炎相关代谢物升高。1
A New Zealand research team has demonstrated that farming practices using functionally diverse pastures—those incorporating multiple forage species—can improve the nutritional composition of animal products in ways that benefit human health 1. The research compared this approach against conventional grazing systems, revealing measurable biochemical differences in both the animals' products and the health markers of people consuming them.
The functionally diverse pasture system achieved significant environmental gains alongside nutritional improvements 1. In sheep, this approach reduced nitrogen loss by approximately 30%, while dairy cattle showed a 42% reduction 1. Venison from functionally diverse systems exhibited substantially enhanced antioxidant and anti-inflammatory properties, with antioxidant levels increasing 27-fold and oxidative stress-regulating metabolites rising 59-fold 1. Additionally, compounds associated with heart disease and dementia risk were reduced to half their levels in conventional systems 1.
Human feeding trials provided direct evidence of health benefits linked to consuming meat from functionally diverse pasture systems 1. Participants who consumed beef from these systems showed elevated circulating metabolites related to cholesterol metabolism, blood vessel function, and energy regulation 1. Those consuming lamb from functionally diverse pastures demonstrated increased metabolites associated with neuroprotection, cardiovascular health, and anti-inflammatory responses 1. Milk from dairy cattle grazing diverse pastures similarly showed elevated levels of beneficial metabolites 1.
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