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Research article
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Effects of additives in drinking water on characteristics of Hanwoo feces
한우 음수 첨가제가 배설 분의 성상에 미치는 영향
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Samkyu Oh, Seunggun Won
오삼규, 원승건
- Development of odor mitigation from livestock industry has been continuously inevitable to achieve its sustainability. According to digestive tracks in livestock species, …
- Development of odor mitigation from livestock industry has been continuously inevitable to achieve its sustainability. According to digestive tracks in livestock species, swine farm has been pressurized by civil complaint and government regulation, whereas Hanwoo and dairy farms were relatively out of range of a regulation. However, odor complaints are focused recently due to the expansion of a residential area. This research was conducted to estimate a mitigation efficient of additives in drinking water for Hanwoo. Total 32 Hanwoo in a raising period were tested including control. The additives provided by a retailor were linked with a drinking water line and supplied to 16 Hanwoo as a treatment. Gases (NH3, H2S, and VOCs) evolved from the bottom of each barn were measured and the concentration of gases in the treatment was lower than that in control. The analyses of manure showed that the concentration of T-N and NH4-N in treatment was also low by 74.2 and 83.7% levels in control, respectively. In addition, composting test described the oxidation of manure in the treatment had been relatively processed over the control. Microbial biota in feces was also changed between control and treatment, which became an indirect index of metabolic physiology in Hanwoo. In order to support such a result, the nutritional approach may be needed in the future. - COLLAPSE
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Effects of additives in drinking water on characteristics of Hanwoo feces
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Research article
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Estimation of emission factors of ammonia and greenhouse gases generated from composting manure of Korean beef
한우분 퇴비화시 발생하는 암모니아와 온실가스 배출계수 산정
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Woo Je Lee, Geun Woo Park, Ki Youn Kim
이우제, 박근우, 김기연
- Livestock farming is a significant sector in South Korea's agriculture, occupying a high proportion. With increasing specialization and scale, there's a rising …
- Livestock farming is a significant sector in South Korea's agriculture, occupying a high proportion. With increasing specialization and scale, there's a rising trend of livestock manure leading to increased odor-related complaints. Among the primary odor-causing substances, ammonia stands out as a major contributor to fine dust pollution. Agriculture accounts for the highest proportion of total ammonia emissions in South Korea, with manure management being the largest contributor. Given that most livestock manure in the country is treated through composting, accurate evaluation and calculation of the emitted ammonia during composting are necessary. Additionally, greenhouse gases like methane and nitrous oxide are also produced during composting. This study aims to measure and calculate the emissions of ammonia, methane, and nitrous oxide during composting of representative livestock manure, particularly from Hanwoo cattle, to provide fundamental data for future management of fine dust and greenhouse gases. The experiment was conducted at a composting facility in a Hanwoo cattle farm located in Chuncheon, Gangwon-do, using a flux chamber. The measured emissions were notably higher compared to previous studies, likely due to the concentrated emission sources in the composting facility. Further comparisons by season and livestock species are warranted based on the findings of this study. - COLLAPSE
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Estimation of emission factors of ammonia and greenhouse gases generated from composting manure of Korean beef
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Research article
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Assessing utilization potential of waste concrete as a biofilm media and evaluating NH3 removal performance
생물막 담체로써 폐 콘크리트의 활용 가능성 및 NH3 제거 성능 평가
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Seung Soo Kim, Soo Min Shim, Joo Hwan Lee, Hyun Yoon Oh, Jung Hoon Kwag, Changsix Ra
김승수, 심수민, 이주환, 오현윤, 곽정훈, 나창식
- In this study, waste cellular concrete (WCC) ranging in particle size from 20 mm to 40 mm was utilized as the media …
- In this study, waste cellular concrete (WCC) ranging in particle size from 20 mm to 40 mm was utilized as the media and packing bed for activated sludge. Lab-scale experiments were conducted using an acrylic column with an internal diameter of 60 mm, filled with 0.7 L of WCC inoculated with activated sludge. Contaminated air containing NH3 from artificial wastewater (with a concentration of 300 mg NH4-N/L) was introduced into each column at varying empty bed residence times (EBRT) of 2, 4, 8, 12, and 18 seconds. The results revealed that the biofilm formed by activated sludge on WCC media effectively removed NH3 from the contaminated air. Under humidified conditions with an NH3 concentration of 516.0 ppm, the NH3 removal rates for columns with EBRT of 2, 4, 8, 12, and 18 seconds were found to be 48.7%, 59.8%, 71.0%, 84.4%, and 97.6%, respectively. Therefore, a biofilter utilizing WCC as biofilm media can effectively mitigate odors in livestock facilities emitting high concentrations of NH3. Furthermore, since inorganic WCC exhibits limited biodegradability, its long-term use as a biofilm media can be ensured. - COLLAPSE
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Assessing utilization potential of waste concrete as a biofilm media and evaluating NH3 removal performance
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Research article
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Evaluation of ammonia emission from dairy manure leachate after solid-liquid separation during mesophilic aeration
젖소분뇨 고액분리여액의 중온 액비화에 따른 암모니아 발생량 평가
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Soyeon Park, Sang Rak Lee, Seongwoo Kim, Byeong-Jun Yang, Yongjun Choi
박소연, 이상락, 김성우, 양병준, 최용준
- This study was conducted to investigate the digestion characteristics and to evaluate ammonia emission on the dairy manure leachate after solid-liquid separation …
- This study was conducted to investigate the digestion characteristics and to evaluate ammonia emission on the dairy manure leachate after solid-liquid separation during mesophilic aerobic digestion. Aerobic digestion was carried out following the recommended criteria for livestock manure resource management. Dairy manure leachate after solid-liquid separation was uniformly mixed and diluted to approximately 10,000 ppm based on the biological oxygen demand (BOD) criterion, and no mixing was performed at 39°C. Aeration was set at 0.03 m3 air/m3 /min, and the daily water loss due to evaporation was replenished at a similar temperature to the liquid. Temperature, pH, ammonia gas production, COD, suspended solids (SS), total nitrogen (TN), total phosphorus (TP), and total potassium (TK) contents were measured and analyzed during the experimental periods. The statistical analysis of the research results was conducted using in SAS MIXED PROC, and significance was tested at p < 0.05. During the 30-day aerobic digestion of dairy manure leachate, the pH increased from 7.6 to 8.2, ammonia levels increased until the 7th day and then gradually decreased until the 30th day, and COD decreased by approximately 88%, SS by approximately 79%, TN by approximately 71%, TP by approximately 22%, and TK by approximately 25%. In this study, it is predicted that aerobic digestion of dairy manure leachate, following the recommended BOD criteria (10,000 ppm) for livestock manure resource management, would excrete approximately 136.44 mg/m2 of ammonia and produce liquid compost with an organic matter content of around 20%. - COLLAPSE
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Evaluation of ammonia emission from dairy manure leachate after solid-liquid separation during mesophilic aeration
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Research article
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Effects of differences in feed intake and thermal environment on productive performance in lactating sows
사료섭취량 및 열환경 차이가 포유모돈 생산성에 미치는 영향
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Byeonghyeon Kim, Kyeong-Seok Kwon, Dong-Hwa Jang, Vandet Pann, Jong-Bok Kim
김병현, 권경석, 장동화, 판반뎃, 김종복
- In South Korea, smart farming is conducted to address the increasing meat consumption and the aging population issue. In addition, smart farming …
- In South Korea, smart farming is conducted to address the increasing meat consumption and the aging population issue. In addition, smart farming data analysis is important for daily decision-making and predicting performance. This study aimed to investigate the effects of differences in feed intake and thermal environment on productive performance in lactating sows by analysis of productivity and environmental factors. A total of 40 sows in the farrowing house were selected for the experiment, and data collection extended over approximately one year, starting in 2019. To obtain the necessary data for the correlation analysis, smart farm equipment was installed. Feed intake (FI) of the lactating sows was measured weekly using an automatic feeder and the weaning to estrus interval (WEI) information was also recorded. The environmental conditions (temperature and humidity) were controlled and the data was collected to analyze the correlations between the FI and environmental factors with weaning weight, number of weaned pigs, and WEI using regression analysis. The insufficient FI by lactating sows led to lower weaning weight and number of weaned pigs, whereas higher feed consumption correlated with larger litters. The elevated temperature during the first week post-farrowing decreased the weaning weight and number of weaned pigs, with no significant effects observed in subsequent weeks. The increased FI during the third week of lactation correlated with shorter WEI, enhancing sow reproductive performance. In conclusion, optimizing FI and maintaining appropriate environmental conditions are important for enhancing sow productivity and farm efficiency. - COLLAPSE
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Effects of differences in feed intake and thermal environment on productive performance in lactating sows
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Research article
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Trends of national standardization for smart livestock farm
축산 스마트팜 국가 표준화 동향
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Dong-hwa Jang, Byeonghyeon Kim, Kyeong-seok Kwon, Vandet Pann, Jong-bok Kim
장동화, 김병현, 권경석, 판반뎃, 김종복
- As smart farming technology in livestock has advanced and the importance of data has been emphasized, the need for standardization has grown. …
- As smart farming technology in livestock has advanced and the importance of data has been emphasized, the need for standardization has grown. As of 2023, a total of five national standards have been established in the field of smart livestock farm. The first is the ‘Sensor interface for smart livestock barn(KS X 3279)’, which includes specifications for ICT-based sensors used in smart livestock barn and common mechanical and electrical interface standards applicable to these sensors. The next standard is ‘Livestock feeding equipment — criteria for data collection(KS B 7956-1~4)’, which is a series standard divided into four parts: Part 1: common aspects, Part 2: Swine, Part 3: Cattle, and Part 4: Chicken. Part 1 defines common aspects such as communication methods and wired/wireless connection methods that are applicable across the devices mentioned in Parts 2 to 4. Parts 2 to 4 specify the standards for accurate data collection from smart farm devices used for swine, cattle, and chickens, including transmission information, measurement specifications, and protection grades. Currently, there is a significant shortage of national standards in the smart livestock farm sector that can be used for the Ministry of Agriculture, Food and Rural Affairs' policy projects. In the future, there is a need for national standardization of terminology in the livestock sector, verification methods and procedures for smart farm devices, communication interfaces, and metadata. For a leap forward in smart livestock farm, additional national standards that can serve as the foundation for technological advancement are necessary. - COLLAPSE
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Trends of national standardization for smart livestock farm
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Research article
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Effects of filtered liquid fertilizer and compost tea derived from livestock waste on growth of plants, antioxidants, and anti-inflammatory for Broccoli (Brassica oleracea L.)
가축분뇨 유래 여과액비와 퇴비차 처리가 브로콜리의 식물생장, 항산화 및 항염증에 미치는 영향
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Tran Yen Linh Le, Su-Yeon Shim, Junkuyng Lee, Byong-O Lee, Sun-Goo Hwang
레쪈옌린, 심수연, 이준경, 이병오, 황선구
- The livestock industry plays a vital role in the economy by producing food for humans. However, the unsuitable livestock management can have …
- The livestock industry plays a vital role in the economy by producing food for humans. However, the unsuitable livestock management can have detrimental effects on the environment. The methane (CH4) and nitrous oxide (N2O) produced from livestock waste led to the greenhouse effect. Thus, the livestock waste recycling is necessary to produce crops in sustainable agriculture. This study aims to assess the effects of organic liquid fertilizers derived from livestock waste on broccoli growth, antioxidants, and anti-inflammatory properties. The fertilizer treatment groups were chemical fertilizer (CF), chlorella cultured in filtered liquid fertilizer is liquid bio fertilizer (LBF), and compost tea mixed with filtered liquid fertilizer (CT+LF). The plant height, leaf length, leaf width, and SPAD values did not exhibit any significant differences in broccoli until 50 days when supplied with chemical fertilizer (CF), liquid biofertilizer (LBF), or compost tea + liquid fertilizer (CT+LF). However, the values of plant length and SPAD units on day 71 were higher in the CF group than in the LBF and CT+LF groups. Furthermore, several antioxidant activities were increased in the LBF group for DPPH or CT+LF group for nitrite scavenging, indicating that organic fertilizers can enhance antioxidant levels. - COLLAPSE
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Effects of filtered liquid fertilizer and compost tea derived from livestock waste on growth of plants, antioxidants, and anti-inflammatory for Broccoli (Brassica oleracea L.)
Journal Informaiton
Journal of Animal Environmental Science
Journal of Animal Environmental Science
The Korean Society of Animal Environmental Science & Technology
(사)한국축산환경학회
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Tel: +82-70-4110-0180 / E-mail: admin@ksaest.org Copyright© The Korean Society of Animal Environmental Science & Technology. Powered by APUB
Tel: +82-70-4110-0180 / E-mail: admin@ksaest.org Copyright© The Korean Society of Animal Environmental Science & Technology. Powered by APUB