中国畜牧杂志2011，Vol.47Issue(7)：37-41,5.
饲料中钙、磷水平对4～6周龄肉鸡骨骼生长的影响
Effect of Dietary Calcium and Phosphonls on Bone Growth in Broilers from 4 to 6 Week of Age
摘要
Abstract
The experiments were conducted to estimate effects of calcium and phosphorus levels on bone growth of broilers. Eight hundred 1 -day -old AA broilers with similar body weight were randomly allotted into 20 experimental treatments with 4 replicates of 10 broilers each. Broilers were fed with the diets containing five levels of calcium (0.6%, 0.8%, 1.0%, 1.2%and 1.5%) and four levels of nonphytate phosphorus (0.35%,0.45%,0.55%and 0.65%) in a 5 x 4 factorial arrangement. The results showed that the tibia strength, tibia ash and tibia phosphorus were significantly positively related to dietary calcium and phosphorus concentration (P<0.05), but tibia strength, tibia ash and tibia phosphorus were decreased significantly while dietary calcium 1.5%, 0.6% and nonphytate phosphorus 0.35% (P<0.05). The results also suggested that the maximum tibia strength was obtained when calcium, nonphytate phosphorus levels were 1.0% and 0.45% during 4 to 6 weeks. The results indicated that the requirements of calcium and nonphytate phosphorus for optimal tibia ash and tibia strength were 0.99% and 0.55%, 1.02% and 0.55%, respectively.关键词
钙/磷/胫骨强度/胫骨灰分/肉鸡Key words
calcium/ phosphorus/ tibia strength/ tibia ash/ broiler分类
农业科技引用本文复制引用
王晋晋,王金荣,付佐龙,娄鹏,任皓..饲料中钙、磷水平对4～6周龄肉鸡骨骼生长的影响[J].中国畜牧杂志,2011,47(7):37-41,5.基金项目
十一五国家科技支撑计划资助(2006BA12B02) （2006BA12B02）
