动物营养学报Issue(11)：3291-3297,7.DOI:10.3969/j.issn.1006-267x.2014.11.015
CPM模型优化饲粮对7～15月龄后备荷斯坦母牛生长发育和血液生化指标影响
Effects of Diets Optimized by CPM Model on Growth, Development and Blood Biochemical Parameters of Holstein Replacement Heifers at 7 to 15 Months of Age
摘要
Abstract
Diets of Holstein replacement heifers in scaled farm was optimized by CPM model, and the effects of optimized diets on growth, development and blood biochemical parameters were evaluated in this study. For-ty Holstein replacement heifers with the same months of age ( 7 months of age) , and similar body height and weight were randomly divided into control and test groups according to paired experimental design, and each group had 20 heifers. Heifers of control group were fed original diets of the farm, while those of test group were fed diets optimized by CPM model. The experimental period was 270 days. The results showed as fol-lows: replacement heifers fed optimized diets had significantly higher cannon circumference at 8, 10, 11, 13 and 15 months of age ( P<0.01);serum calcium content of replacement heifers fed optimized diets was signifi-cantly higher than that of heifers fed original diets ( P<0.05);cost of optimized diets of 7 months of age, 8 to 9 months of age, 10 to 12 months of age, 13 to 15 months of age was decreased by 1. 02, 0.78, 0.62 and 0.52￥/(head·d) than that of original diets, respectively. In conclusion, diets optimized by CPM model can increase cannon circumference of Holstein replacement heifers, improve growth and absorption of blood calci-um, and decrease feeding cost;CPM model can be used to evaluate and optimize diets formulation of Holstein replacement heifers.关键词
后备母牛/CPM模型/生长发育/血液生化指标Key words
replacement heifers/CPM model/growth and development/blood biochemical parameters分类
农业科技引用本文复制引用
王洋,曲永利,王志博,刘立成,刘翔,赵鑫,邢伟明..CPM模型优化饲粮对7～15月龄后备荷斯坦母牛生长发育和血液生化指标影响[J].动物营养学报,2014,(11):3291-3297,7.基金项目
国家自然基金项目“日粮能氮水平对奶牛瘤胃代谢机理及其检测方法的研究”（31340031）；国家科技部支撑项目“东北农区奶牛规模化健康养殖生产技术集成和产业化示范”（2012BAD12B05-01）；黑龙江农垦总局项目“黑龙江垦区规模化奶牛场增产关键技术研究与示范” （）
