利用体外分批培养评估加拿大红海藻的甲烷减排潜力

IF 1.2 4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Stephanie A Terry, Vicky Garcia, Karen A Beauchemin
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引用次数: 0

摘要

选用7种加拿大红海藻(Callophyllis flabellulata, Graciliariopsis verrucosa, Mastocarpus papillatus, Mazzaella splendens, Mazzaella japonica, Palmaria mollis和Prionitis lanceolata)和阳性对照(taxxiformis),研究了它们的化学和元素组成及其对苜蓿干草和大麦秸秆日粮中体外发酵和甲烷(ch4)产生的影响。体外分批培养采用完全随机设计,对照(苜蓿干草或大麦秸秆)和7种增加浓度的海藻。不同海藻属的化学和元素组成差异很大。增加沙蚁的添加量线性降低(P <0.001)干物质消失(DMD)和产气量(GP);mL, mL/g DMD),消除了ch4的产生(P <0.001),在两种饲料中均添加1.0%的A. taxformis。在苜蓿饲粮中分别添加0.5%和1.0%的乳突乳霉、日本马氏菌、splendens马氏菌、Palmaria mollis和针叶朊菌,使GP (mL/g DMD)提高(P≤0.05)。草卷草可线性降低秸秆饲粮中ch4产量(mL/g DMD) (P = 0.01),但剂量与对照组无显著差异。总之,本研究中检测的加拿大红海藻在与苜蓿干草或大麦秸秆孵育时没有表现出抗产甲烷的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessing the methane mitigation potential of Canadian red seaweeds using in vitro batch culture
Seven red Canadian seaweeds ( Callophyllis flabellulata, Graciliariopsis verrucosa, Mastocarpus papillatus, Mazzaella splendens, Mazzaella japonica, Palmaria mollis, and Prionitis lanceolata) and a positive control ( Asparagopsis taxiformis) were selected to evaluate their chemical and elemental composition and their effects on in vitro fermentation and methane (CH 4 ) production in an alfalfa hay or barley straw diet. The in vitro batch culture was conducted as a completely randomised design with a control (alfalfa hay or barley straw) and seven increasing concentrations of seaweed. Chemical and elemental composition varied greatly across seaweed genera. Increasing supplementation of A. taxiformis linearly decreased ( P < 0.001) dry matter disappearance (DMD) and gas production (GP; mL, mL/g DMD) with CH 4 production eliminated ( P < 0.001) at 1.0% inclusion of A. taxiformis in both diets. Inclusion of Mastocarpus papillatus, Mazzaella japonica, Mazzaella splendens, Palmaria mollis, and Prionitis lanceolata increased ( P ≤ 0.05) GP (mL/g DMD) at 0.5% and 1.0% in alfalfa diets. Graciliariopsis verrucosa linearly decreased ( P = 0.01) CH 4 production (mL/g DMD) in the straw diet, but no doses were different compared to the control. In conclusion, the Canadian red seaweeds examined in this study did not exhibit anti-methanogenic potential when incubated with alfalfa hay or barley straw.
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来源期刊
Canadian Journal of Animal Science
Canadian Journal of 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
51
审稿时长
6 months
期刊介绍: Published since 1957, this quarterly journal contains new research on all aspects of animal agriculture and animal products, including breeding and genetics; cellular and molecular biology; growth and development; meat science; modelling animal systems; physiology and endocrinology; ruminant nutrition; non-ruminant nutrition; and welfare, behaviour, and management. It also publishes reviews, letters to the editor, abstracts of technical papers presented at the annual meeting of the Canadian Society of Animal Science, and occasionally conference proceedings.
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