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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Animal Environmental Science
Journal Basic Information
Journal DOI :
Korean Association for Livestock Housing and Environment
Editor in Chief :
Volume & Issues
Volume 16, Issue 3 - Dec 2010
Volume 16, Issue 2 - Aug 2010
Volume 16, Issue 1 - Apr 2010
Selecting the target year
The Effect of Media Application in Aeration Tank for Aerobic Treatment of Swine Slurry
Jeong, Kwang-Hwa ; Choi, S.H. ; Kwag, J.H. ; Kim, J.H. ; Jeong, E,S. ; Jeong, M,S. ; Kang, H.S. ;
Journal of Animal Environmental Science, volume 16, issue 3, 2010, Pages 167~174
This study was performed to evaluate the removal effects of nutritive salts and organic pollutants in experimental aeration reactor for treatment of piggery slurry. In this study, three types of reactors were manufactured and operated. The fibrous media was equipped in one of three reactors. Another reactor was equipped with the siliceous media and the other reactor used as a control was equipped with typical aeration system only. Treatment efficacy of three types of reactors were evaluated according to the pollutants removal rate of the piggery slurry. The results obtained in this study are as follows : 1) In the reactor containing fibrous media, the removal efficiency of BOD, T-N and T-P was 11%, 13.9% and 21.2%, respectively. 2) In the reactor containing siliceous media, the removal efficiency of BOD, T-N and T-P was 6.9%, 25.3% and 47.8%, respectively. 3) In the reactor not containing media, the removal efficiency of BOD. T-N and T-P was 6.1%, 8.1.% and 23.6%, respectively. 4) Sludge accumulation in the reactor equipped with filamentous media was lower than that of other experimental reactors.
Study on the Methane Emissions from Pails Storing Liquid Swine Manure
Choi, D.Y. ; Park, K.H. ; Kwag, J.H. ; Cho, S.B. ; Yang, S.H. ; Hwang, O.H. ; Kang, H.S. ; Yoo, Y.H. ;
Journal of Animal Environmental Science, volume 16, issue 3, 2010, Pages 175~180
Many greenhouse gases occur naturally, such as water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Others such as hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (
) result exclusively from human industrial processes. Current global warming has been linked to anthropogenic greenhouse gas concentration increases. Methods to quantify greenhouse gas emissions during animal agriculture and the possibility to apply those to circumstance in the world were studied. Various chamber methods with trace gas analyzer (TGA) were used to quantify greenhouse gas emissions from stored manure. Methane fluxes from pails storing liquid swine manure were measured. Methane emissions increased a little with time and mean was 393.2
(standard error : 4
A Review of Welfare Chicken Farming System
Ha, J.J. ; Rhee, Y.J. ; Kim, B.C. ; Ohh, S.J. ; Song, Y.H. ;
Journal of Animal Environmental Science, volume 16, issue 3, 2010, Pages 181~192
This review was performed to investigate the current researches on the welfare of rearing environments system in farming chicken, including stocking density, perch, housing system and research trend. The investigation indicated that most of the developed countries took much efforts into making appropriate regulations to improve the welfare of rearing environment about broilers and laying hens, particularly more parts in laying hens. Recently the regulations have varied a lot, to be more detailed than before. Moreover, some regulations give valuable suggestions to improve well-being of poultry industry such as additional facilities. Until now it has been known, the quality of the products will improve and the income of producers will increase along with the improvement of welfare. Therefore the relevant agencies and organizations can strengthen the belief of consumers especially the competition is so fierce today. In conclusion, improvement of poultry welfare should be carried out in the real situation and international trends to create the appropriate rules such as professional consulting and training.
Effects of Different Ventilation Systems on Rearing Growing-finisher and Indoor Environment in a High Rise Hog Building
Yoo, Y.H. ; Jeong, J.W. ; Park, K.H. ; Song, J.I. ; Ko, Y.G. ; Kim, S.W. ; Lee, I.B. ;
Journal of Animal Environmental Science, volume 16, issue 3, 2010, Pages 193~204
The goal of this study was to develop a high-rise hog building(HRHB) for growing-fattening stages. HRHB was two story building and was suitable for specific environment in Korea. Manure was treated in a first floor and pigs were raised on the slatted second floor. Three ventilation systems - 1) duct inlet to wall exhaust system(V1), 2) eave inlet to wall exhaust system(V2), and 3) ceiling inlet to wall exhaust system(V3) - were used. This experiment was conducted during winter and from summer to fall. Air temperature, air speed, ammonia, hydrogen sulfide in HRHB, and swine growth rate were measured. During winter, air temperature in V1 system tended to be slightly high without any effect of outside air temperature. Maximum temperature from summer to fall was between 33.4 and
and there was no significant difference among systems. Continuously measured daily temperature was lower in V2 system than other systems and the fluctuation of air temperature was high. Air speed in V1 and V2 systems were similar (0.02~0.21 m/s), and was 0.04~0.15 m/s in V3 during winter. From summer to fall, air speed in V1, V2, and V3 systems were 0.10~0.41 m/s, 0.10~0.83 m/s, and 0.11~0.26 m/s, respectively. V2 system showed bigger fluctuation of air speed than other systems. During winter, the highest concentrations of ammonia in V1, V2, and V3 systems were 7.0, 3.5, and 8.7 ppm, respectively. Hydrogen sulfide was not detected. The highest concentrations of ammonia from summer to winter in V1, V2, and V3 systems were 6.1, 2.8, and 5.6 ppm, respectively. Swine growth showed no statistical significance among systems. However, daily weight gain was approximately 4% higher in V1 and V3 than in V2. Feed intake/daily weight gain was approximately 4% higher in V1 than other systems. From summer to fall, daily weight gain in V1 and V3 tended to approximately 3% higher than other systems, and feed intake/daily weight gain was approximately 2% higher in V1 than other systems. Hence, V2 system for the ventilation system of HRHB should not be utilized.
Evaluation on Heating Effects of Geothermal Heat Pump System in Farrowing House
Choi, H.C. ; Park, Jae-Hong ; Song, J.I. ; Na, J.C. ; Kim, M.J. ; Bang, H.T. ; Kang, H.G. ; Park, S.B. ; Chae, H.S. ; Suh, O.S. ; Yoo, Y.S. ; Kim, T.W. ;
Journal of Animal Environmental Science, volume 16, issue 3, 2010, Pages 205~215
Geothermal heat pump system (GHPS) is an energy-efficient technology that use the relatively constant and renewable energy stored in the earth to provide heating and cooling. With the aim of using GHPS as a heating source, it's possibilities of application in farrowing house were examined by measuring environmental assessment and sow's performance. A total of 96 sows were assigned to 2 pig housings (GHPS and conventional housing) with 48 for four weeks in winter season. During the experimental period, indoor maximum temperature in GHPS-housing was measured up to
, average temperature could maintain
. The mean value of dust levels and
gas emissions were decreased in GHPS-housing compare with those of conventional housing. Litter size, birth weight, parity and weaning weight did not differ between housings. However, feed intake of sow in GHPS-housing was lower than that of conventional housing. In energy consumption for heating, electric power consumption increased in GHPS-housing than the conventional housing, a 2,250 kwh increase, whereas there is no fuel usage for heater in GHPS-housing. Amount of ground water circulated for heating in cold weather for earth heat exchanger was 8.4-12.9 ton per day. In conclusion, GHPS may have environmental benefits and effectiveness of heating in farrowing housing and affect the performance in sows.
Hydroponic Culture of Leaf Lettuce Using Mixtures of Fish Meal, Bone Meal, Crab Shell and the Pig Slurry Leachate of Woodchip Trickling Filter
Ryoo, Jong-Won ;
Journal of Animal Environmental Science, volume 16, issue 3, 2010, Pages 215~226
The pig slurry leachate was dark brown-colored solution that leaches out of woodchip trickling filter. The purpose of this research was to investigate the effect of pig slurry leachate and byproduct on growth characteristics of leaf lettuce in hydroponics culture. The effects of addition of fish meal, bone meal and crab shell for the growth of leaf lettuce were investigated. Leaf lettuce were grown in each of six combination treatment solutions; slurry leachate, slurry leachate + fish meal, slurry leachate+bone meal, slurry leachate + crab shell and chemical hydroponic solution for lettuce based on EC content. The chemical nutrient solution was the solution of National Horticulture Research Station for the growth of lettuce. The all of nutrient solution was adjusted 1.5 mS/cm in EC in hydroponics culture. 1. The pH level of leachate of trickling filter was increased and EC decreased gradually during treatment. Pig slurry leachate was low in suspended solids (SS), phosphorus (P), but rich in potassium (K). 2. The plot of slurry leachate (SL) was lowest in the growth characteristics of lettuce. The leaf length and width of lettuce treated with mixture plot of slurry leachate and fish meal (SL + FM) was higher compared with plot in slurry leachate. The chlorophyll reading was reduced in plot treated with slurry leachate, but that in plot of SL+FM was similar compared with control plot. 3. The fresh weight of lettuce showed lowest in the plot treated with slurry leachate. The addition of fish meal increased the yield of comparing plot of slurry leachate, but plots of bone meal and crab shell addition were not significantly difference. The fresh weight of leaf lettuce in plot of SL+FM was 87% as 400.0g compared with control. In conclusion, the mixture solution of pig slurry leachate and fish meal could be used as a nutrition solution of organic lettuce hydroponics.
Study on the Development of Measuring System for Fermentation Degree of Liquid Swine Manure Using Visible Ray
Choi, D.Y. ; Kwag, J.H. ; Park, K.H. ; Song, J.I. ; Kim, J.H. ; Kang, H.S. ; Han, C.B. ; Choi, S.W. ; Lee, C.S. ;
Journal of Animal Environmental Science, volume 16, issue 3, 2010, Pages 227~236
This study was conducted to develop an measuring system and method for fermentation degree of liquid swine manure by visible ray. The constituent changes of liquid swine manure were examined. pH gradually increased with time, but EC gradually decreased. Malodor strength decreased gradually with aeration treatment with time. Control needed more time to decrease malodor strength than aeration treatment. In aeration treatment, there was no germination of seeds (radish, chinese cabbage) up to 6 weeks and germination rate at 15th week was over 50%. However, in control, there was no germination up to end of experiment. Circular chromatography method showed that there was change after 10th week in aeration treatment but there was no change up to end of experiment in control. As a result, the fermentation degree of liquid swine manure would have relations among pH, EC, germination rate, malodor concentration, and reaction of circular chromatography. The simple analytical instrument for liquid swine manure consisted of a tungsten halogen and deuterium lamp for light source, a sample holder, a quartz cell, spectrometer for spectrum analyzer, a malodour measuring device, a software, etc. Results showed that the simple analytical instrument that was developed can approximately predict the fermentation degree of liquid swine manure by visible ray. Generally, the experiment proved that the simple analytical instrument was reliable, feasible and practical for analyzing the fermentation degree of liquid swine manure.
Investigation on the Characteristics of Vertical Composting System Using Layer Manure
Kwag, J.H. ; Kim, J.H. ; Cho, S.H. ; Jeong, K.H. ; Choi, D.Y. ; Jeong, Y.S. ; Jeong, M.S. ; Kang, H.S. ; Ra, C.S. ;
Journal of Animal Environmental Science, volume 16, issue 3, 2010, Pages 237~244
Using a vertical composting system in layer farms, the composting process was characterized in terms of temperature variation, change of moisture contents, fertilizer ingredient and so on. In this study, two types of layer farms were examined. The layer manure was produced as 3,300 and 116,650 kg/day for Farm A and Farm B, respectively. Also, their average moisture contents were 74.4% (Farm A) and 65.6 % (Farm B). The inside temperature of composting in Farm A was varied in the range of 50 to
, and moisture content of it decreased from 59.5% to 20.6% at the edge of vertical composting system. While in Farm B, composting temperature was fluctuated between 50 and
and moisture content declined from 34.0% to 13.4% at the end of vertical composting system. The fertilizer ingredients such as T-N,
were not significantly influenced by seasonal effect. Their values were changed in the range of 0.90% to 0.47% for T-N, 0.16% to 0.42% for
, and 0.22% to 0.28 for
, respectively. Also, OM/N ratio was varied from 36.8 to 84.4.
Farm Animal Mortality Management Practices in Sunchon-si
Hong, Ji-Hyung ;
Journal of Animal Environmental Science, volume 16, issue 3, 2010, Pages 245~252
Disposal methods of managing carcass in Korea livestock production systems include burying, digesting, rendering, carcass dumping to manure pile, dead animal disposer and mini-incinerator. Burying was usually the most practical method of carcass disposal in our livestock farms. Burying, carcass dumping to manure pile, dead animal disposer and mini-incinerator may have environmental regulatory and economic liabilities when used as a means of carcass disposal. In many cases in this survey, these disposal methods offer a poor choice for the producer due to individual site conditions, geology, cost, air emissions, rendering plants. A survey questionnaire that addressed the issues to livestock producers was prepared. The questionnaire addressed two main topics as follows: 1) types of livestock and generation amounts of carcass 2) Number of breeding animals and disposal methods of livestock mortality. A total of 36 livestock producers were interviewed. The results of obtained in this survey were summarized as follows: The number of breeding poultry, swine, beef cow and dairy cow was 251,000, 2,600, 142 and 92 heads per year and the generation amounts of annually carcass was 0.46, 15.32, 0.36, 1.36 tons per year of each poultry, swine, beef cow and dairy cow farms, respectively. The disposal methods of carcass were burying (42%), carcass dumping to manure pile (36%), rendering (8%), incineration (6%), digesting (6%), carcass disposer (2%), respectively. These results can be used as basic information to establish the standard of carcass composting facility.