Analysis of differences in calf growth under grazing based on energy metabolism as affected by climatic condition

基于能量代谢的气候条件对放牧犊牛生长差异的分析

• 批准号: 06454110
• 负责人: OKUBO Tadakatsu
• 金额: $ 4.42万
• 依托单位: Gifu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06454110/
• 关键词: Grazing calf; Beef cattle; Energy metabolism of calf; Grassland; Grazing pasture; Pangola grass grazing; Red top grazing; Pleioblastus chino under grazing; 放牧時エネルギー代謝; 草地植生型と放牧牛の生産力; 放牧牛の成長と草種

Growth rate of calf under grazing is often observed to vary with seasonal condition and species composition of pasture vegetation located in different places. The difference in growth rate of calves was anslysed in terms of energy conversion on four steps from solar energy input to available herbage growth, from herbage allowance to herbage intake, from digestible energy to calf growth.The efficiency of conversion varied with season and with species of grasses. Calf growth rate was related to the efficiency from metabolisable energy to gain and the efficiency was related with plant species.

放牧条件下犊牛的生长速度往往因季节条件和不同地区草地植被的物种组成而异。从光能输入到有效牧草生长、牧草供给量到牧草采食量、消化能到犊牛生长四个阶段的能量转化率，分析了犊牛生长速度的差异，其转化率因季节和牧草种类而异。犊牛生长速度与代谢能转化为增重的效率有关，而转化效率与植物种类有关。

项目成果

大久保忠且(編,分担): "動物生産学(陸上における動物資源の管理)" 文永堂出版, (1996)

大久保正（编辑、合着）：《动物生产科学（陆地上动物资源的管理）》文内道出版社，（1996）

大久保忠旦(編,分担): "新畜産大事典(飼料作物と草地)" 養覧堂, (1996)

大久保忠丹（编辑、合著者）：《新牲畜百科全书（饲料作物和草地）》Yorando，（1996）

S.Itano,T.Okubo & N.Watanabe: "The seasonal change in energy conversion from feed to milk yield and body retention of Holstein dairy cows." Res.Bull.Fac.Agr.Gifu Univ.60,(in press). (1995)

板野先生、大久保先生

大久保忠且(編,分担): "新畜産大事典(飼料作物と草地)" 養覧堂, (1996)

大久保正（编辑、合著者）：《新牲畜百科全书（饲料作物和草地）》Yorando，（1996）

T.Okubo: "Energy balance of free-ranging animals on grazed pasture." Proc.Intern.Symp.on Grassland Resources,Huhehot.(in press).

T.Okubo：“放牧动物的能量平衡。”