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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 15, Issue 3 - Dec 2009
Volume 15, Issue 2 - Aug 2009
Volume 15, Issue 1 - Apr 2009
Selecting the target year
Effect of Collection Times of Rumen Fluid on In vitro Dry Matter Digestibility of Forage Crops
Jo, Nam-Chul ; Jung, Min-Woong ; Kim, Meing-Jung ; Lim, Young-Chul ; Yook, Wan-Bang ;
Journal of Animal Environmental Science, volume 15, issue 2, 2009, Pages 91~98
Object of this study were to determine the influence of collection times of rumen fluid on in vitro dry matter digestibility (IVDMD) of forage crops. The donor cow was fed concentrate once a day and given free access to grass-legume mixture hay. Main plot was consisted of different collection time of rumen fluid; T1: 1 hour before concentrate feeding, T2: 1 hour after feeding, T3: 4 hour after feeding and T4: 8 hour after feeding. A total of 7 samples of 4 different forage crops (barely, Italian ryegrass, crimson clover, rye) were used for the estimation of IVDMD and tested in three replicates. For the
incubation, each sample was inserted into each filter bag then heat-sealed and incubated in a digestion vessel for 48 h at
. The times of rumen fluid collection had no significant effect on the IVDMD values over all varieties except for 2 breeds of IRG (Kogreen and Kospeed). IVDMD values with T1 over all varieties were slightly higher than other treatments, however those with both T1 of Kogreen and Kospeed varieties were significantly higher than T2 (p<.05).
Pigment Distribution Analysis of High Speed Fan for Dusting Large Pasture at Livestock Farms
Kim, C.S. ; Min, B.R. ; Seo, K.W. ; Lee, D.W. ;
Journal of Animal Environmental Science, volume 15, issue 2, 2009, Pages 99~106
We conducted a comparison experiment of our wide-area spraying high speed fan with a fan which was developed by Japan MARUYAMA Inc. have been much recognized for it's history and skills in a field of spraying machine. In result, MARUYAMA Inc. fan sprayed up to 120 m and, on the other hand, wide-area spraying high speed fan of our own making was able to spray up to more than 160 m. Wide-area spraying machine have been supplied to domestic demands by importing from Japan, but it is determined to be possible that home products will occupy market for it's ability, price and A/S environment in future. The main research results are below. Some plastic cups which are in the open market are used for our experiment. After distributing 90 cups in a range of 10m vertically with localizing 5 cups horizontally and 18 cups vertically, spraying machine was moved and finally we make distribution charts by estimating the sprayed amounts on each cup. Vertical distance was set up to 5m and we calculated average values by using sprayed amount and data of 4 observers. In result our fan showed much sprayed amounts than MARUYAMA Inc. all over the field except situations of vehicle departing and stopping.
Study on Odor From Gestating Sow Barns and Boundary Area
Jeong, J.W. ; Park, K.H. ; Heu, M.Y. ; Choi, D.Y. ; Lee, M.J. ; Gang, H.S. ;
Journal of Animal Environmental Science, volume 15, issue 2, 2009, Pages 107~114
Civil appeals on odor from swine barn have been increasing. This study was conducted to compile basic data of odor from swine barns as civil appeals on odor have been increasing. Odor was monitored from two gestating sow barns and the boundary of those barns in Suwon and Hwaseong city from June to November, 2008. Mean ammonia concentration measured at the boundary of A piggery in Suwon city was 0.9 ppm with occasional breaks of permissible limit (1.0 ppm). Mean concentrations of hydrogen sulfide and methyl mercaptan were 0.37 ppb and 0.01 ppb, which were lower than permissible limits of 20 ppb and 2 ppb, respectively. Mean ammonia concentration was 3.22 ppm and was maintained under 5.0 ppb. Ammonia concentration had increased since November when the barns were closed. Hydrogen sulfide and methyl mercaptan were lower than the permissible limits. Mean ammonia concentration measured at the boundary of B piggery in Hwaseong city was 16.3 ppm and steep increase of concentration was monitored after October when the barn was sealed up. Hydrogen sulfide and methyl mercaptan were 26.66 ppb and 7.45 ppb, respectively. In appropriate ventilation and raising environment would cause high ammonia concentration in swine barns. Emitted ammonia from barns and composting facilities were mixed, which would cause higher ammonia concentration on the boundary of barns. Hence improvement of raising environment, rapid manure treatment, and correct use of microbial preparation would be needed.
Effects of Concentration and Size of Porous Calcium Silicate (PCS) in Broiler Feeds on Performances, Fly Generation and Malodorous Gas Emission
Jeon, B.S. ; Song, J.I. ; Jeon, J.H. ; Kwag, J.H. ; Kang, H.S. ; Choi, H.C. ; Kim, T.I. ; Lee, E.S. ; Nahm, K.H. ;
Journal of Animal Environmental Science, volume 15, issue 2, 2009, Pages 115~130
Three experiments on the addition of Porous Calcium Silicate (PCS) to broiler feed were conducted at different time periods in the same house. Each treatment had 4 replicates with 12 chicks in each treatment. Weight gain and feed intake were higher (
) in the control groups. Feed conversions' were better (
) in the PCS group, 3.0% PCS and 20 mesh size of PCS than the control group from 21 to 49 days, and for the overall period.
. gas production were decreased (
) when zeolite was added in broiler feeds. 1.5% or 3.0% PCS in broiler feed was better (
) than the 4% PCS. More than 90 mesh size PCS was better (
) in controlling
production in the 5th period than the 20 or 50 mesh size or control groups. The control and PCS groups produced more flies (
) than zeolite group during the 2nd and 3rd weeks. The 3.0% or 4.5% PCS or 50 or 90 mesh size of PCS in broiler feed produced more flies than the 20 mesh size or control groups although 50 or 90 mesh size of PCS during 5th week tended to have lower fly production than the 20 mesh size of PCS and control group.
Analysis of Heat Environment in Nursery Pig Behavior
Sang, J.I. ; Choi, H.L. ; Jeon, J.H. ; Jeon, B.S. ; Kang, H.S. ; Lee, E.S. ; Park, K.H. ;
Journal of Animal Environmental Science, volume 15, issue 2, 2009, Pages 131~138
This study was conducted to find ways to control environment with the difference between body temperature and background temperature based on swine activity, and to apply to the environment control system of swine barns based on the findings. Following are the results. 1. Swine activity related to background temperature was achieved as color images and swine activity status was categorized into cold, comfortable, and hot periods with visualization system (thermal image system). 2. Thermal image system consisted of an infrared CCD camera, an image processing board - DIF (TH3100), an main computer (400Hz, 128M, 586 Pentium model) with C++ program installed. 3. Thermal image system categorizing temperatures into cold, comfortable, and hot was applicable to the environment control system of swine barns 4. Feed intake was higher in cold temperature, and finishing weight and weight gain per day in cold temperature were lower than others (p<0.05).
Analysis of Reproductive and Weaned Performances in Sow Farms
Kim, G.W. ;
Journal of Animal Environmental Science, volume 15, issue 2, 2009, Pages 139~146
This study was carried out to investigate the reproductive and weaned performances in sow farms, which located in Boryeong city, Chungnam. Data surveyed a total of 10,394 litters of sow recorded from April, 2007 to March, 2008 were collected and analyzed. The results obtained were as follows; 1. The average of number of sow and farrowing rate were 314.10 sows and 78.77%, respectively. And then, there was not significant difference among seasons in number of sows, but significant difference among season was found in farrowing rate (p<0.05). 2. The average of litter size at farrowing and at initial sucking were 11.04 and 10.22 pigs, respectively. The significant differences were not all found in litter size among seasons. 3. The number of pigs, age and growth rate at weaning were 9.23 pigs, 25.77 days and 91.48%, respectively. The significant differences among seasons were not found in number of pigs and age at weaning. However, there was significant difference in growth rate at weaning (P<0.05). 4. The average of farrowing rate of sows per year, pigs from sow per year (PSY), and body weight at marketing were 2.25 times, 20.75 pigs, and 110.46 kg, respectively. The significant differences among seasons were not found in farrowing rate per year and weight at marketing, but that was found only in PSY (p<0.05), respectively.
The Study to Re-establish the Amount and Major Compositions of Slurry From Seasonal Swine Farms
Kwag, J.H. ; Choi, D.Y. ; Kim, J.H. ; Jeong, K.H. ; Park, C.H. ; Jeong, M.S. ; Han, M.S. ; Kang, H.S. ; Ra, C.S. ;
Journal of Animal Environmental Science, volume 15, issue 2, 2009, Pages 147~154
The purpose of this study was to determine the effect of re-establish the amount and major compositions of slurry from swine farms. The results obtained in this study was summarized as follow; The quantity of wastewater produced from the average volume of pig slurry was
in autumn, and
in winter. The average moisture content of slurry was 95.5%. And the composition of pig slurry contents of N,
, were 0.27, 0.20 and 0.17% in slurry, respectively. The water pollutant concentration in slurry of swine farms,
, SS, T-N and T-P, was
Recycling Studies for Swine Manure Slurry Using Multi Process of Aerobic Digestion (MPAD)
Kim, Soo-Ryang ; Yoon, Seong-Ho ; Lee, Jun-Hee ; Lee, Myung-Gyu ;
Journal of Animal Environmental Science, volume 15, issue 2, 2009, Pages 155~160
This study was carried out to investigate the feasibility of Multi Process of Aerobic Digestion (MPAD) for recycling of swine manure slurry as fertilizer. MPAD consisted of three kinds of difference process which are thermophilic aerobic oxidation (TAO) system, lime solidification system, and reverse osmosis (R/O) membrane system. TAO system was studied well previously for decade. The chemical composition of the lime-treated solid fertilizer was as like that organic matter 17.4%, moisture 34.1%, N 0.9%, P 1.7%, K 0.3%, Ca 12.7%, and which was expected to be useful as acid soil amendment material. The concentrated liquid material produced by R/O membrane system was also expected as a good fertilizer for crops production and soil fertility improvement.
Effects of Compost Leachate and Concentrated Slurry on the Growth and Yield of Pepper in a Substrate Hydroponic Culture
Ryoo, Jong-Won ;
Journal of Animal Environmental Science, volume 15, issue 2, 2009, Pages 161~170
This experiment was conducted to investigate the effects of compost leachate and concentrated pig slurry on growth of pepper in substrate hyrdoponic culture. In process of composting, compost leachate was was through a saturated compost heap. Pig slurry was filtered by ultra filtration and concentrated by reverse osmosis process. The pig slurry was mixed with chemical nutrient solution and byproduct based on nitrogen content. Peppers were grown in the seven different hydroponic solutions; compost leachate (CL), concentrated pig slurry (CS), compost leachate + byproduct (CL+BP), concentrated pig slurry + byproduct (CS+BP), compost leachate 50% + nutrient solution 50% (CL+NS), concentrated pig slurry 50% + nutrient solution 50% (CS+NS) and chemical nutrient solution for pepper. The chemical nutrient solution was the standard solution of National Horticulture Research Station for the growth of pepper. The concentration of nutrient solution was adjusted
in EC. The compost leachate and concentrated pig slurry were low in phosphorus (P), calcium (Ca), magnesium (Mg), but rich in potassium (K). Growth characteristics as affected by the different nutrient solution were significantly different. Growth and fruit characteristics treated with CL 50+NS 50%CS and 50+NS 50% were similar with NS 100% control plot. The dry weight of stem and leaf were 107.4, 104.2g in plot of NS 100% and CS 50%+NS 50%, respectively. The fruit of pepper showed lowest in the plot treated with 100% concentrated pig slurry, and the growth of pepper severely decreased after application of 100% CS treatment. The yield of pepper was not significantly different between the plots treated with mixture of CS50 + NS50% and 100% nutrient solution treatment. Fruit yield of the compost leachate concentrated pig slurry plot were 59, 14% compared to control, repectively. In conclusion, the mixture solution of 50% of pig slurry and 50% of nutrient solution could be used as a nutrition solution of pepper in hydroponic culture.
Comparison of Weekly and Batch Management System for Sows
Jang, Young-Dal ; Ju, Won-Seok ; Long, Hong-Feng ; Piao, Long-Guo ; Jang, Sung-Kwon ; Chung, Chung-Soo ; Kim, Yoo-Yong ;
Journal of Animal Environmental Science, volume 15, issue 2, 2009, Pages 171~182
Conventionally, many pig producers have utilized a continual sow managements system that the matings, farrowings and weanings are done weekly basis. But this transitional method is not able to cut the cycle of diseases and fully apply all-in/all-out system because of the continuous flow of sows and pigs. Conventional weekly management system is currently limiting in small farm to work efficiently both for workers and pigs. Therefore, pig producers have found novel management methods for applying all-in/all-out system, improving pig health, leading to better growth, lowering mortality and reducing medication costs nowadays. Moreover, all-in/all-out pig management system has known as a strategy for improving productivity in swine farm. The batch system is one of the best management methods to adopt all-in/all-out pig management system that prevent spreading diseases in pig and remove cycle of diseases. Batch farrowing system is a concept for providing a group of sows that delivery within a specific farrowing interval and inducing a large enough scale of piglets to fill the weaner facilities. There are different types of batch farrowing system with batch size and interval of farrowing when several factors at the swine farm are considered such as total number of sows, available facilities in the farm, and the efficiency of workforce. Sow managements such as farrowing, weaning and breeding, every 3 weeks rather than weekly, 2 or 5-week interval have advantages for workers and reproductive cycle of sows as well as pig flow. Because there are several pros and cons both in weekly and batch management system, various factors should be considered to apply the most suitable management system in each individual farm. To improve poor swine productivity in Korea compared to ED, batch system for sows will be an alternative choice which is able to prevent high incidence of diseases in swine farm such as PMWS, PRRS, PRDC and PED because all-in/all-out pig management can be also applied automatically by using this management system.