Odor generation pattern of swine manure according to the processing form of feed.

IF 2.7 3区农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Journal of Animal Science and Technology Pub Date : 2024-01-01 Epub Date: 2024-01-31 DOI:10.5187/jast.2023.e48

Won Choi, Wooje Lee, Kiyoun Kim

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引用次数: 0

Abstract

Feed has a great influence on the composition of swine manure, which is the principal cause of odor. Therefore, the purpose of this study is to simply change the shape of pig feed and control calories to find a suitable feed form for reducing the smell of swine manure. The experiment was conducted on 15 pigs from July to August 2021, and a total of three measurements were done. Three types of feed were evaluated in this study. The analysis items related to odor of swine manure are complex odor, ammonia, sulfur-based odors, and volatile organic compounds (VOCs). In the case of complex odor, dilution multiples tended to decrease over time, except for type A feed. The concentration of ammonia in all types of feed decreased over time. Most sulfur-based odorous substances except hydrogen sulfide at the first measurement were not detected. Representatively, Decane, 2,6-Dimethylnonane, and 1-Methyl-3-propylcycolhexane were detected in VOCs generated from swine manure. The major odorous substansces in swine manure have changed from ammonia and sulfur compounds to VOCs. In order to reduce the odor caused by swine manure, it is ad-vantageous to use low-calorie feed consisting of pellet-type.

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猪粪气味产生模式与饲料加工形式有关。

饲料对猪粪成分有很大影响，而猪粪成分是产生臭味的主要原因。因此，本研究的目的是通过简单改变猪饲料的形状和控制热量，找到一种适合减少猪粪气味的饲料形式。实验于 2021 年 7 月至 8 月在 15 头猪身上进行，共进行了三次测量。本研究评估了三种类型的饲料。与猪粪气味有关的分析项目包括复合气味、氨气、硫基气味和挥发性有机化合物（VOC）。就复合气味而言，除 A 类饲料外，稀释倍数随着时间的推移呈下降趋势。所有类型饲料中的氨浓度都随时间推移而下降。除了首次测量时的硫化氢外，大多数硫基气味物质都未检测到。在猪粪产生的挥发性有机化合物中，检测到了具有代表性的癸烷、2,6-二甲基壬烷和 1-甲基-3-丙基环己烷。猪粪中的主要臭味物质已从氨和硫化合物转变为挥发性有机化合物。为了减少猪粪产生的臭味，最好使用低热量的颗粒饲料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Animal Science and Technology Agricultural and Biological Sciences-Food Science

CiteScore

4.50

自引率

8.70%

发文量

审稿时长

7 weeks

期刊介绍： Journal of Animal Science and Technology (J. Anim. Sci. Technol. or JAST) is a peer-reviewed, open access journal publishing original research, review articles and notes in all fields of animal science. Topics covered by the journal include: genetics and breeding, physiology, nutrition of monogastric animals, nutrition of ruminants, animal products (milk, meat, eggs and their by-products) and their processing, grasslands and roughages, livestock environment, animal biotechnology, animal behavior and welfare. Articles generally report research involving beef cattle, dairy cattle, pigs, companion animals, goats, horses, and sheep. However, studies involving other farm animals, aquatic and wildlife species, and laboratory animal species that address fundamental questions related to livestock and companion animal biology will also be considered for publication. The Journal of Animal Science and Technology (J. Anim. Technol. or JAST) has been the official journal of The Korean Society of Animal Science and Technology (KSAST) since 2000, formerly known as The Korean Journal of Animal Sciences (launched in 1956).