【摘要】 采用每千克含2.59、2.64、2.70及2.75兆卡的4个代谢能水平的配方,饲喂产蛋鸡,结果证明,日粮蛋白质与代谢能之间的比值大小,对鸡的生产性能和鸡脂肪肝综合症的发生率影响较大。试验1～4组蛋能比值依次为66.94、64.77、62.74及60.97,脂肪肝综合症的发生率相应为30％、 10％、 10％和0,其相关性极为显著(r=0.79);产蛋性能:第二组产蛋量最高(平均每羽16.49千克),第一组次之,第四组最低(15.36千克)。更多还原

【Abstract】 Hens were assigned to dietary treatments of 2.59, 2.64, 2.70 and 2.75 Meal.of metabolizable energy to determine the relationship between energy-protein ratio and frequency of fatty liver syndrome (FLS ) in laying hens.The results shown that there was a significant correlation (r = 0.79) .In Exp.1, 2, 3and 4 the energy-protein ratio was 66.94、 64.77, 62.74 and 60.92, respectively,and the frequencies of FLS were 30,10,10 and 0 %,correspondingly.The average yearly laying capacity was the best in Exp.2 ( 16.4kg/bird ) , the second was in Exp.1. and the last one was in Exp.4 ( 15.36kg/bird ) .更多还原