【摘要】 文章论述了草地畜牧业的养分循环及放牧与舍饲的统一性,指出草原地区放牧与舍饲相结合是合理的选择,通过案例证实了在放牧与舍饲相结合的生产系统中饲养肉牛能够达到较高的生产水平(新疆褐牛及其杂交牛24~26月龄活重520~600kg)。讨论了草地承载力与养殖业发展,强调要依据动态草地承载力发展草食家畜、优选放牧策略、草地封育与划区轮牧。针对不同生态区域提出了加强草地生态建设的一些建议,通过案例证实了中原地区草地奶牛业生产系统可以达到高产、优质和可持续。更多还原

【Abstract】 This paper discussed the unity of nutrient cycling,grazing and house rearing in grassland animal husbandry,pointing out the combination of grassland grazing and feeding was a reasonable choice.Through the case study,it is confirmed the combination of grazing with feeding system could achieve a higher level of beef cattle production(Xinjiang Brown and its crossbred cattle at 24-26 months old with live weight of 520~600kg).The relationship of grassland carrying capacity with livestock development was discussed,too;it emphasized that developing the production of herbivorous animals should be based on the dynamic carrying capacity of grassland,grazing strategy selection,grassland fencing and rotational grazing.Some suggestions on strengthening grassland ecological construction in different ecological regions were also put forward.Futhermore,the case analysis reveals that the grassland dairy production system in the Central Plains could reach the aims of high yield,good milk quality and sustainability.更多还原