| 高精料肥育对奶公犊生长性能及生产效益的影响 |
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| 引用本文： | 刘高坤,姚琨,王思伟,张新,郭伟婷,李胜利,王昆,王雅晶. 高精料肥育对奶公犊生长性能及生产效益的影响[J]. 中国奶牛, 2021, 0(3): 1-5 |
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| 作者姓名： | 刘高坤 姚琨 王思伟 张新 郭伟婷 李胜利 王昆 王雅晶 |
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| 作者单位： | 中国农业大学动物科学技术学院动物营养学国家重点实验室;河北省农林科学院粮油作物研究所;山东省得益二牧牧业有限责任公司;石家庄市畜牧技术推广站 |
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| 基金项目： | 河北省农林科学院创新工程科技专项(4-04-03);河北省二期现代农业产业技术体系肉牛创新团队遗传资源开发与利用岗位建设项目(HBCT20181302);宁夏回族自治区重点研发计划项目(2018BBF33006);国家重点研发计划“畜禽重大疫病防控与高效安全养殖综合技术研发(2018YFD0501603);奶牛精准饲养提质增效集成与示范项目。 |
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| 摘 要： | 本试验旨在探究高精料肥育模式下奶公犊的生长规律及该模式下的生产效益.试验选用300头日龄为210±2.07d、体重为243±17.01kg的荷斯坦牛公犊进行试验,综合月龄和体重指标进行肥育阶段划分,分为肥育前期(7～9月龄)、饲料过渡期(10～11月龄)、肥育后期(12～18月龄),通过提高日粮精料比例,逐阶段提高日粮...
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| 关 键 词： | 奶公犊肥育 三阶段肥育模式 肥育饲养管理 |
Effect of High Concentrate Diets on Growth Performance and Economic Efficiency of Holstein Calve in Fattening |
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| LIU Gao-kun,YAO Kun,WANG Si-wei,ZHANG Xin,GUO Wei-ting,LI Sheng-li,WANG Kun,WANG Ya-jing. Effect of High Concentrate Diets on Growth Performance and Economic Efficiency of Holstein Calve in Fattening[J]. China Dairy Cattle, 2021, 0(3): 1-5 |
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| Authors: | LIU Gao-kun YAO Kun WANG Si-wei ZHANG Xin GUO Wei-ting LI Sheng-li WANG Kun WANG Ya-jing |
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| Affiliation: | (State Key Laboratory of Animal Nutrition,College of Animal Science and Technology,China Agricultural University,Beijing 100193;Institute of Cereal and Oil Crops,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050035;Shandong Deyi Ermu Co.,Ltd.,Zibo 256307;Shijiazhuang Animal Husbandry Technology Promotion Station,Shijiazhuang 050000) |
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| Abstract: | The aim of this experiment was to investigate the actual growth performance,fertility and the production benefits of Holstein calves in a high concentrate fertilization mode.In this experiment,300 male Holstein calves aged 210±2.07 d and weighing 243±17.01 kg were used,which were divided into pre-fertilization(7~9 months),transitional period(10~11 months)and post-fertilization(12~18 months)stages.The results showed that the average gain of the herd was 70 kg in the pre-fertilization,with the ADG being over 1.4 kg in the period;the ADG during the transition period was 1.43 kg,which was significantly higher than that of 9 months of age(1.00 kg);the ADG was 1.46 kg and 1.6 kg at 12 and 13 months of age respectively.The ADG dropped to less than 1 kg after 17 months of age.During fattening period,as the age increased,the feed rate tended to decrease.In terms of economic benefits,the gross profit and average annual margin were RMB 1,311 yuan/head and 23 percentage points higher than those of the traditional fattening mode pursing cattle from other districts.This shows that the high concentrate calf fattening model can be promoted and used in large and medium-sized calf fattening farms in China. |
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| Keywords: | Suckler calf fattening North American three-stage fattening model Fattening management |
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