Energy and economic values of greenhouse sheds to replace winter grazing in north-western China

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

To demonstrate that winter grazing in northwestern China is counterproductiveto animal production, 40 ewes from two farms were kept throughout awinter inside makeshift greenhouse sheds while another 40 ewes were left grazingin the traditional manner. Results show that the average temperature insidethe greenhouse was 10, 14 and 4°C higher than outside at 9 am, 12 noon and9 pm, respectively (all P < 0.001), and that ewes inside the greenhouse lost3 kg less bodyweight than those outside (P < 0.001). An analysis using theauthors'€™ bioeconomic model suggests that the proposed method can save2.4 MJ day 1;/ head of metabolizable energy and, at the gross economic benefitof 1191 yuan or $189 year, the initial cost of 3000 yuan or $477 can bepaid off within three seasons.
Original languageEnglish
Pages (from-to)156-159
Number of pages4
JournalGrassland Science
Volume59
Issue number3
DOIs
Publication statusPublished - Sep 2013

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economic valuation
ewes
grazing
farm
greenhouses
China
winter
energy
economics
cost
bioeconomic models
temperature
animal production
metabolizable energy
farms
body weight
analysis
method
methodology

Cite this

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title = "Energy and economic values of greenhouse sheds to replace winter grazing in north-western China",
abstract = "To demonstrate that winter grazing in northwestern China is counterproductiveto animal production, 40 ewes from two farms were kept throughout awinter inside makeshift greenhouse sheds while another 40 ewes were left grazingin the traditional manner. Results show that the average temperature insidethe greenhouse was 10, 14 and 4{\~A}‚°C higher than outside at 9 am, 12 noon and9 pm, respectively (all P < 0.001), and that ewes inside the greenhouse lost3 kg less bodyweight than those outside (P < 0.001). An analysis using theauthors'{\^A}€{\^A}™ bioeconomic model suggests that the proposed method can save2.4 MJ day 1;/ head of metabolizable energy and, at the gross economic benefitof 1191 yuan or $189 year, the initial cost of 3000 yuan or $477 can bepaid off within three seasons.",
keywords = "Cold climates, Herder, Livestock production, Winter feeding",
author = "Zheng Yang and Taro Takahashi and David Kemp",
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Energy and economic values of greenhouse sheds to replace winter grazing in north-western China. / Yang, Zheng; Takahashi, Taro; Kemp, David.

In: Grassland Science, Vol. 59, No. 3, 09.2013, p. 156-159.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Energy and economic values of greenhouse sheds to replace winter grazing in north-western China

AU - Yang, Zheng

AU - Takahashi, Taro

AU - Kemp, David

N1 - Imported on 12 Apr 2017 - DigiTool details were: month (773h) = September, 2013; Journal title (773t) = Grassland Science. ISSNs: 1744-697X;

PY - 2013/9

Y1 - 2013/9

N2 - To demonstrate that winter grazing in northwestern China is counterproductiveto animal production, 40 ewes from two farms were kept throughout awinter inside makeshift greenhouse sheds while another 40 ewes were left grazingin the traditional manner. Results show that the average temperature insidethe greenhouse was 10, 14 and 4°C higher than outside at 9 am, 12 noon and9 pm, respectively (all P < 0.001), and that ewes inside the greenhouse lost3 kg less bodyweight than those outside (P < 0.001). An analysis using theauthors'€™ bioeconomic model suggests that the proposed method can save2.4 MJ day 1;/ head of metabolizable energy and, at the gross economic benefitof 1191 yuan or $189 year, the initial cost of 3000 yuan or $477 can bepaid off within three seasons.

AB - To demonstrate that winter grazing in northwestern China is counterproductiveto animal production, 40 ewes from two farms were kept throughout awinter inside makeshift greenhouse sheds while another 40 ewes were left grazingin the traditional manner. Results show that the average temperature insidethe greenhouse was 10, 14 and 4°C higher than outside at 9 am, 12 noon and9 pm, respectively (all P < 0.001), and that ewes inside the greenhouse lost3 kg less bodyweight than those outside (P < 0.001). An analysis using theauthors'€™ bioeconomic model suggests that the proposed method can save2.4 MJ day 1;/ head of metabolizable energy and, at the gross economic benefitof 1191 yuan or $189 year, the initial cost of 3000 yuan or $477 can bepaid off within three seasons.

KW - Cold climates

KW - Herder

KW - Livestock production

KW - Winter feeding

U2 - 10.1111/grs.12027

DO - 10.1111/grs.12027

M3 - Article

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SP - 156

EP - 159

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JF - Grassland Science

SN - 0447-5933

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ER -