减少肉牛生产系统的温室气体排放

IF 0.8 4区农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-08-27 DOI:10.1080/09064702.2020.1806349

S. Samsonstuen, B. A. Åby, P. Crosson, K. Beauchemin, L. Aass

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引用次数: 6

摘要

采用全农场模型HolosNorBeef来评估挪威肉牛群温室气体减排策略的效率。各种缓解方案，涉及雌性繁殖性能(即小牛死亡率和每头奶牛每年生产的小牛数量)、待屠宰公牛的生产效率(即屠宰年龄和胴体重量)，以及补充目前报道的有望抑制肠道甲烷(CH4)的抑制剂(3-硝基氧丙醇;在英国和大陆品种的畜群中调查了3-NOP。降低小牛死亡率和增加每头奶牛每年的产仔数都使各品种的排放强度降低了3%。由于胴体产量的增加，大陆品种显示出更大的降低排放强度的潜力。在最佳情况下，结合各种缓解方案，各品种的总排放量减少了11.7%。使用3-NOP可进一步降低8.3%的排放强度。

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Mitigation of greenhouse gas emissions from beef cattle production systems

ABSTRACT The whole-farm model HolosNorBeef was used to estimate the efficiency of GHG emission mitigation strategies in Norwegian beef cattle herds. Various mitigation scenarios, involving female reproductive performance (i.e. calf mortality rate and the number of calves produced per cow per year), production efficiency of young bulls for slaughter (i.e. age at slaughter and carcass weight), and supplementation of an inhibitor currently reported as promising for enteric methane (CH4) inhibition (3-nitrooxypropanol; 3-NOP) was investigated in herds of British and Continental breeds. Reducing calf mortality and increasing the number of produced calves per cow per year both reduced emission intensities by 3% across breeds. Continental breeds showed greater potential of reducing emission intensities due to increased carcass production. Combining mitigation options in a best case scenario reduced the total emissions by 11.7% across breeds. The emission intensities could be further reduced by 8.3% with the use of 3-NOP.

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来源期刊

Acta Agriculturae Scandinavica Section A-Animal Science 农林科学-奶制品与动物科学

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

>36 weeks

期刊介绍： Acta Agriculturæ Scandinavica, Section A – Animal Science publishes results of original research in animal science and their applications related to the following topics: -Animal breeding and genetics -Molecular genetics -Animal physiology and reproduction -Nutrition and feeding -Animal behaviour and welfare -General animal husbandry and systems of production, including economic and technical aspects -Hygiene and quality of animal products In addition to original articles, covering basic as well as applied subjects, the journal features review articles and short communications. Acta Agriculturæ Scandinavica, Section A – Animal Science forms part of a trilogy of titles published on behalf of the Nordic Association of Agricultural Scientists (NJF). The series also includes Section B - Soil & Plant Science and the recently launched Section C - Food Economics . Acta Agriculturae Scandinavica A, B and C are available to purchase as a combined subscription. This provides access to all three journals in the series, and is available to institutional subscribers only. For full pricing information, please view the Taylor & Francis Journals Price List here. Scientists in research, teaching and extension with specialised interest in animal science and production.