期刊文献

Effects of Onion Peel Inclusion on In Vitro Fermentation, Methane and Carbon Dioxide Emissions, and Nutrient Degradability in Dairy Cow Diets 收藏

洋葱果皮包容对奶牛饮食中体外发酵，甲烷和二氧化碳排放的影响以及养分的降解性

原文求助发布源

作者

Lydia K. Olagunju (https://orcid.org/0009-0002-6274-0218) [1];Oludotun O. Adelusi (https://orcid.org/0000-0002-8723-9190) [2];Peter A. Dele (https://orcid.org/0000-0002-8814-6420) [3];Yasmine Shaw [4];Rosetta M. Brice [5];Oluteru E. Orimaye (https://orcid.org/0009-0005-2400-1918) [6];Jorge A. Villarreal-González (https://orcid.org/0000-0002-9571-7949) [7];Hye Won Kang (https://orcid.org/0000-0003-0829-9011) [8];Ahmed E. Kholif (https://orcid.org/0000-0003-0472-4770) [9];Uchenna Y. Anele (https://orcid.org/0000-0002-6630-9292) [10];

作者单位

[1]Department of Animal Sciences, North Carolina Agricultural and Technical State University, 1601 East Market Street, Greensboro, NC 27411, USA; [2]Department of Animal Sciences, North Carolina Agricultural and Technical State University, 1601 East Market Street, Greensboro, NC 27411, USA; [3]Department of Animal Sciences, North Carolina Agricultural and Technical State University, 1601 East Market Street, Greensboro, NC 27411, USA; [4]Department of Animal Sciences, North Carolina Agricultural and Technical State University, 1601 East Market Street, Greensboro, NC 27411, USA; [5]Department of Animal Sciences, North Carolina Agricultural and Technical State University, 1601 East Market Street, Greensboro, NC 27411, USA; [6]Department of Animal Sciences, North Carolina Agricultural and Technical State University, 1601 East Market Street, Greensboro, NC 27411, USA; [7]Department of Animal Sciences, North Carolina Agricultural and Technical State University, 1601 East Market Street, Greensboro, NC 27411, USA; [8]Department of Family and Consumer Sciences, North Carolina Agricultural and Technical State University, 1601 East Market Street, Greensboro, NC 27411, USA; [9]Department of Animal Sciences, North Carolina Agricultural and Technical State University, 1601 East Market Street, Greensboro, NC 27411, USA; [10]Department of Animal Sciences, North Carolina Agricultural and Technical State University, 1601 East Market Street, Greensboro, NC 27411, USA;

发布日期

2025-3-27

页码

969

DOI

10.3390/ani15070969

来源信息

Animals ISSN：2076-2615, 2025年, 15卷, 7期, 969页

摘要

Enteric greenhouse gas (GHG) emissions represent a major challenge in livestock production, contributing significantly to global methane output. Various strategies have been explored to mitigate these emissions, including dietary modifications, feed additives, and genetic improvements. In the present study, the focus was on onion peel (OP), a byproduct of the onion processing industry that has shown promise as a natural feed supplement with potential methane-reducing properties. We evaluated the effect of different inclusion levels of OP at 2.5% (OP2.5), 5% (OP5), 7.5% (OP7.5), and 10% (OP10) on the in vitro fermentation of two diets: a total mixed ration referred to as high concentrate (HC), and corn silage referred to as high forage (HF). A 48 h batch culture experiment using a 2 × 3 × 5 factorial arrangement was conducted to assess total gas production (GP), methane (CH4), carbon dioxide (CO2), ammonia (NH3), and hydrogen sulfide (H2S) concentrations, and nutrient degradability. Measurements were taken at 6 h, 24 h, and 48 h of incubation. Significant additive × diet interactions were observed for most of the parameters. The HC diet produced more gas but less CH4, CO2, NH3, and H2S compared to the HF diet (p < 0.05). At 24 h of incubation, the OP at all levels increased CH4, CO2, NH3, and H2S concentrations in the HF diet (p < 0.05). The OP2.5 treatment had the lowest (quadratic effect, p < 0.05) degradable dry matter (dDM) in the HC diet, while the OP linearly (p < 0.001) increased degradable acid detergent fiber (dADF) in both diets. The lowest total volatile fatty acids (VFA) and acetate (quadratic effect, p = 0.027) were observed with the OP5 treatment in the HC diet, while OP5, OP7.5, and OP10 had lower total VFA concentration in the HC diet. At 48 h of incubation, the OP7.5 treatment increased (p < 0.05) GP and CH4 and CO2 production in the HC diet. However, the OP5 treatment had the lowest CH4 production (quadratic effect, p = 0.027) in the HF diet. The highest dDM was observed with OP7.5 treatment (quadratic effect, p = 0.038) in the HC diet with lower values noted at different inclusion levels in the HF diet. Inclusion of OP had no effect on total VFA, and individual VFA in both diets. In conclusion, OP supplementation is more suitable for HF diets than HC diets. A 5% inclusion level is recommended to decrease ruminal CH4production and improve nutrient degradability.

摘要译文

肠内温室气体（GHG）排放是牲畜产量的主要挑战，对全球甲烷产量产生了重大贡献。已经探索了各种策略来减轻这些排放，包括饮食修饰，饲料添加剂和遗传改善。在本研究中，重点是洋葱皮（OP），这是洋葱加工行业的副产品，该副产品表现出有望是具有潜在甲烷还原性能的自然饲料补充剂。我们评估了2.5％（OP2.5），5％（OP5），7.5％（OP7.5）和10％（OP10）对两种饮食的体外发酵的影响：总混合量为高浓度（HC）和Corn卷为高饲料（HF）。进行了48 h批次培养实验，使用2×3×5阶乘布置进行评估，以评估总气体产量（GP），甲烷（CH4），二氧化碳（CO2），氨（NH3）和硫化氢（H2S）浓度和营养含量的硫化物（H2S）浓度。在6小时，24小时和48小时的孵育时进行测量。对于大多数参数，观察到显着的添加×饮食相互作用。与HF饮食相比，HC饮食产生了更多的气体，但CH4，CO2，NH3和H2S较少（P <0.05）。在孵育24小时时，所有水平的OP在HF饮食中增加了CH4，CO2，NH3和H2S浓度（P <0.05）。OP2.5治疗在HC饮食中具有最低（二次作用，p <0.05）可降解的干物质（DDM），而两种饮食中OP线性（P <0.001）的OP线性（P <0.001）增加了可降解的酸性酸洗涤剂纤维（DADF）。在HC饮食中，OP5处理观察到了最低的总挥发性脂肪酸（VFA）和乙酸盐（二次作用，P = 0.027），而OP5，OP7.5和OP10在HC饮食中的总VFA浓度较低。孵育48小时时，OP7.5治疗在HC饮食中增加（P <0.05）GP和CH4和CO2的产生。但是，OP5处理在HF饮食中的CH4产生最低（二次作用，p = 0.027）。在HC饮食中，使用OP7.5处理（二次效应，p = 0.038）观察到最高的DDM，其值在HF饮食中的纳入水平不同。包含OP对两种饮食中的总VFA和单个VFA没有影响。总之，与HC饮食相比，补充OP更适合HF饮食。建议使用5％的纳入水平来降低瘤胃CH4的生产并改善养分降解性。