作　　者： ; ; ; ; ; ;

机构地区： 广东省农业科学院

出　　处： 《中国畜牧杂志》 2013年第5期22-26,共5页

摘　　要： 采用单因子完全随机试验设计研究饲粮维生素D水平对120日龄雌性龙岩麻鸭产蛋性能,血液生化及胫骨指标的影响,进而探讨产蛋初期蛋鸭维生素D需要量。选取1 260只120日龄健康的福建龙岩麻鸭随机分为6个处理,每处理6个重复,每重复35只。各处理组蛋鸭随机饲喂维生素D水平分别为0、800、1 600、2 400、3 200、4 000 IU/kg的试验饲粮。饲养期为21 d。结果表明:维生素D水平对产蛋初期龙岩麻鸭产蛋性能、蛋品质以及血浆钙、磷含量、碱性磷酸酶活性均无显著影响(P>0.05),基础饲料上添加维生素D显著降低血浆中甲状旁腺激素的含量(P<0.05),但各添加组间无显著差异(P>0.05),饲粮维生素D含量显著影响胫骨钙、磷及灰分含量(P<0.05),维生素D水平为800 IU/kg时,获得较好的骨骼质量,维生素D水平对胫骨长度、胫骨管围、折断力、骨密度、骨矿物盐含量无显著影响(P>0.05)。因此,龙岩麻鸭产蛋初期饲粮维生素D适宜添加量为800 IU/kg。 An experiment was conducted to study the effect of vitamin D on performance, egg quality, plasma biochemistry and bone Indicators in Long-yan Ducks. One thousand two hundreds and sixty female long-yan ducks with similar body weight were randomly allotted into 6 treatments with 6 repicates of 35 ducks. Ducks were fed experimental diets with six supplemental levels of vitamin D（0, 800, 1600, 2400, 3200 and 4000 IU/kg） by completely randomized design . The results showed that supplementation of vitamin D in diets did not effect the performance, plasma calcium, phosphorus and AKP （P〉 0.05 ）, but plasma PTH with zero vitamin D addition was higher than the other groups （/9〈0.05）. Supplementation of vitamin D in diets influenced the calciun and phosphorus content in tibia （/9 〈0.05）. At the 800 IU/kg level of vitamin D, the calcium and phosphorus content in tibia reached its maximum level. These results indicated that the requirement of vitamin D is 800 IU/kg in Long-yan Ducks during 16-18wk Old .

关 键 词： 维生素 产蛋性能 蛋品质 胫骨 蛋鸭

领　　域： [农业科学] [农业科学]