反刍动物营养 Ruminant Nutrition

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

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  • 1. 黑龙江八一农垦大学动物科技学院, 大庆 163319;
    2. 黑龙江省农垦科学院畜牧兽医研究所, 哈尔滨 150030
王 洋(1988- ),男,辽宁海城人,硕士研究生,从事反刍动物营养研究。E-mail:182061631@qq.com

收稿日期: 2014-05-11

  网络出版日期: 2014-11-17

基金资助

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"(HNK125B-11-02)

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

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  • 1. College of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China;
    2. Animal Husbandry and Veterinary Research Institute, Harbin 150030, China

Received date: 2014-05-11

  Online published: 2014-11-17

摘要

本文利用CPM模型优化规模化奶牛场7~15月龄后备母牛饲粮,研究优化后饲粮对后备母牛生长发育和血液生化指标的影响。选用相同月龄(7月龄),胎次、体高和体重相近的健康后备荷斯坦母牛40头,按照配对试验设计把试验奶牛随机分为2组,每组20头,对照组采用奶牛场现有的饲粮配方,试验组采用CPM模型优化后的饲粮配方。试验期为270 d。结果表明:饲喂CPM模型优化饲粮极显著提高了后备母牛8、10、11、13和15月龄的管围(P<0.01);试验组后备母牛血清中钙含量在8月龄时显著高于对照组(P<0.05);优化后7月龄、8~9月龄、10~12月龄、13~15月龄饲粮成本比调整前分别降低了1.02、0.78、0.62和0.52元/(头·d)。由此可见,饲喂CPM模型优化饲粮可提高后备母牛的管围,促进后备母牛的生长,促进血钙的吸收,降低饲养成本,CPM模型可用于评价和优化后备荷斯坦母牛的饲粮配方。

本文引用格式

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 , 26(11) : 3291 -3297 . DOI: 10.3969/j.issn.1006-267x.2014.11.015

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. Forty 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 follows: 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 significantly 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 calcium, and decrease feeding cost; CPM model can be used to evaluate and optimize diets formulation of Holstein replacement heifers.

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