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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Poultry Science
Journal Basic Information
Journal DOI :
The Korean Society of Poultry Science
Editor in Chief :
Volume & Issues
Volume 33, Issue 4 - Dec 2006
Volume 33, Issue 3 - Sep 2006
Volume 33, Issue 2 - Jun 2006
Volume 33, Issue 1 - Mar 2006
Selecting the target year
Effect of Mugwort and Fish Oil Addition on Quality and Shelf-Life in Meat-type Chicken
Kim Y.J. ;
Korean Journal of Poultry Science, volume 33, issue 1, 2006, Pages 1~6
This study was conducted to investigate the influence of dietary mugwort (0, 1, 2, 4%) and sardline oil(1%) on weight gain, pH, volatile basic nitrogen (VBN), thiobarbituric acid reactive substance (TBARS), and meat color in meat-type chickens. Birds were randomly assigned to the four dietary treatments: control (commercial feed), control plus 1% mugwort and sardine oil (T1), 2% mugwort and 1% sardine oil(T2), or 4% mugwort and 1% sardine oil (T3). Birds were sacrificed and meat samples were taken and stored for either 0, 3, 7 or 10 days at
. Weight gain in T3 was lowest than other treatment groups (P<0.05). pH of dietary mugwort and sardine oil treatments increased significantly compared to that of control during storage periods (P<0.05). VBN and TBARS of all treatment groups were significantly increased as storage period extended (P<0.05). Meat color
significantly increased during storage periods.
values were higher in treatment groups than in control (P<0.05). These results indicate that the mugwort and fish oil may improve quality and self-life of meat-type chickens during storage.
Effects of Packaging Methods on Color and Lipid Oxidation of Duck Meat during Cold Storage
Kang G.H. ; Jeong T.C. ; Yang H.S. ; Kim S.H. ; Jang B.G. ; Kang H.S. ; Lee D.S. ; Lee S.J. ; Joo S.T. ; Park G.B. ;
Korean Journal of Poultry Science, volume 33, issue 1, 2006, Pages 7~14
The effects of aerobic and vacuum packaging of fresh duck meat on meat qualities including color, cooking loss, shear force, lipid oxidation and fatty acid composition during cold storage were investigated. The result showed that pH of the samples were decreased as increasing storage time, and leg meat showed significantly (p<0.05) higher than breast meat. Redness showed significantly (p<0.05) higher value in breast meat compared to leg meat as increasing the storage time. However, TBARS value showed significantly (p<0.05) higher in breast meat compared to leg meat as increasing storage time. This result suggested that the lower pH affected lipid oxidation and discoloration of the meat samples. However, fatty acid composition of 1 day storage time showed that aerobic packaging of leg meat had lower (p<0.05) ratio of palmitic acid and higher (p<0.05) ratio of linoliec acid, whereas vacuum packaging of leg meat showed higher (p<0.05) ratio of palmitic acid at 7 days storage time than other treatments. Therefore, this data speculated that saturated fatty acid like palmitic acid and unsaturated fatty acid like linoleic acid were affected by lipid oxidation at different storage time. Finally, aerobic packaging meat accelerated lipid oxidation compared to vacuum packaging meat, hence self life was no longer better than vacuum packaging meat without relation of different type of meat from duck.
Effects of Dietary Safflower Seed Powder and Chitosan on Hatching Egg Production and Eggshell Quality in Aged Egg-type Breeder Hens
Kim E.J. ; Shin S.C. ; You S.J. ; Ahn B.K. ; Kang C.W. ;
Korean Journal of Poultry Science, volume 33, issue 1, 2006, Pages 15~24
This experiment was conducted to investigate the effects of dietary safflower seed (SFS) powder and chitosan on hatching egg production and eggshell qualify in aged egg-type breeder hens. A total of four hundred 54-week-old Hy-Line Brown breeder hens were divided into five the groups and fed experimental diets either with addition of 0.25 and 0.50% SFS powder or 0.10 and 0.20% chitosan or devoid of all for 6 weeks. There were no significant differences in feed intake and laying performances among the groups. The rate of sellable egg in the groups fed diets containing SFS powder or chitosan was significantly increased compared to that of control (P<0.05), irrespective of dose-dependent manner. The addition of SFS powder or chitosan significantly improved the eggshell strength (P<0.01). Eggshell thickness was also significantly increased in the groups 134 diets containing chitosan as compared with that of control (P<0.01). Fertility and hatchability of egg set were significantly improved by dietary chitosan that those of control (P<0.05). ike contents of tibial Ca and P were significantly increased in the groups fed diets containing 0.5% SFS powder, 0.1 and 0.2% chitosan as compared with those of control. The levels of blood estrogen, calcitonin and parathyroid hormone were not affected by the dietary treatments. The overall results indicated that the proper use of some feed additives such as safflower seed powder and chitosan might provide means of improving eggshell quality and reproductive performances in aged egg-type breeder hens.
Effect of Dietary Supplementation of Silicate Mineral
on Growth Performance and Intestinal Microflora in Broiler Chicks
Ahn S.M. ; Shin S.C. ; Park S.S. ; You S.J. ; Kim Y.R. ; Kim E.J. ; Ahn B.K. ; Kang C.W. ;
Korean Journal of Poultry Science, volume 33, issue 1, 2006, Pages 25~32
This experiment was conducted to investigate the effects of dietary Vita2000 on growth performances and immune response in broiler chickens. One-day-old male chicks were fed diets containing 0, 0.5 and 1% Vita2000 (with or without antibiotics) for 5 wks. There were no significant differences in daily weight gain among the treatments, but feed intake in 1% Vita2000 groups (T3 and T4) were significantly lower than control (P<0.05). The relative abdominal fat weight and the level of crude fat in leg meat on groups fed diets containing 1% Vita2000 (T3 and T4) were significantly decreased as compared to those of control (P<0.05). The content of cholesterol in leg meat was not affect by dietary treatment. The intestinal total microbes, Coli form, Lactic acid bacteria and Salmonella spp. from bird fed 1% Vita2000 diets was significantly reduced compared to those of control. The production of IB antibody in chicks fed diet containing 0.5% Vita2000 was significantly higher than that of control groups. The overall results indicate that dietary Vita2000 may be a valuable alternative to antibiotics for optimizing growth performances, particularly for reducing the abdominal fat of broiler chicks.
on Performance, Weight of Organ, Intestinal Villus and Intestinal Microbial in Broiler Chicks
Kim C.H. ; Lim K.C. ; Hwang J.H. ; Ra C.S. ; Pak J.I. ;
Korean Journal of Poultry Science, volume 33, issue 1, 2006, Pages 33~39
This study was conducted to investigate the feeding effect of
on growth performance, organ phenomenon and cecum microflora in broiler chicks. The
was made by an ion exchange between illite and
. There were four treatment groups: negative control group(non-treatment), antibiotic supplement group (positive control), 0.5%
supplment group and 1.5%
supplement group. Total 200 birds was assigned for this five replication tests, allocating 10 birds into each treatment. Experimental diets were formulated on isocalories and isonitrogen for the whole experimental period. Body weight gain was higher in antibiotic supplementation (+C) and
supplement groups(S 0.5% and 51.5%) than the negative control group(-C), and feed efficiency was significantly enhanced with increase of the level of
supplement. The length of small intestine was longer in +C than in -C and
supplement groups (P<0.05), and the weight of small intestine was proportional to the level of
supplement. Crop weight was lower in
supplement group than in -C and +C groups (P<0.05), and the cecum weight was heavier in
supplementation group. Intestinal villi height was longer in 51.5% group at 3 weeks and 6 weeks of age than in -C and +C groups. With the respect of the formation of intestinal microflora, TBC and CBC was not affected by age and feed additive. However, the number of LAB was slightly higher in
supplement group than in -C and +C groups.
Effects of Feeding Earthworm Meal on the Egg Quality and Performance of Laying Hens
Son J.H. ;
Korean Journal of Poultry Science, volume 33, issue 1, 2006, Pages 41~47
A study was conducted to investigate the effect of supplementing earthworm meal(EWM) on the egg quality and performance of laying hens. A total of 360 laying hens at 55 weeks of age were fed the experimental diets containing 0(Control), 0.3 and 0.6% of EWM for 5 weeks. Eggs were collected and weighed in every day and egg production and feed conversion were weekly recorded. However egg quality were measured fer last week of experimental period. When fed both 0.3 and 0.6% of EWM, egg production and daily egg mass tended to increase but were not different between those treatments. Feed intake and feed conversion ratio of laying hens were not different among three groups. Egg shell thickness, breaking strength, color and egg yolk color were tend to improve in both 0.3 and 0.6% of EWM compared to those of control. The haugh units(HUs) showed no difference among each treatments at 14 after laying egg, but increased in EWM treatments compared to control for storage period. As, Cd, Cr, Hg and Pb detected 4.41, 1.23, 1.18, 0.00 and 3.39ppm in EWM, respectively, but which were not detected in control. It assumed that supplementing 0.3% of earthworm meal in the 55 weeks old laying hens diet, improved the laying performance and egg quality.
Effects of Feeding Bupleurum falcatum L. on Performance, Blood Component and Hormone Concentration in Broiler Breeder Hens
Park J.H. ; Kang C.W. ; Ryu K.S. ;
Korean Journal of Poultry Science, volume 33, issue 1, 2006, Pages 49~55
An experiment was conducted to investigate the effects of feeding Bupleurum falcatum L.(BFL) on performance, blood component and hormonal secretion in broiler breeder hens. A total of 800 broiler breeder hens were allotted to four treatments(BFL ; 0, 0.5, 1.0, 2.0%) with four replications for eight weeks. Weight gain was not significantly different between the groups in growing period(
weeks), but egg production and egg mass of broiler breeder hens fed BFL were significantly(p<0.05) higher than those of the control groups in laying period(
weeks). Dietary BFL did not affect serum triglyceride concentration, whereas serum cholesterol concentration was significantly increased(p<0.05) in 2.0% BFL-fed groups. No statistical differences were found in serum glucose, Ca, P, Mg, total protein, albumin, GGT, AST, ALT and BUN concentrations. However, albumin/globulin ratio was statistically higher in BFL-fed groups compared to the control groups(p<0.05). Serum estrogen concentrations were significantly increased by feeding a diet containing 0.5% BFL, but progesterone were not influenced. Serum IGF-I of BFL groups was greater than that of control groups at 28 weeks(p<0.05). In conclusion, the results suggest that the dietary addition of BFL into broiler breeder diets improved egg production, serum estrogen and IGF-I concentration, and decreased serum cholesterol concentration and albumin/globulin ratio.
Effect of Ventilating System on the Performance of Broiler Chicks in an Environmental Controlled Cage House
HwangBo J. ; Hong E.C. ; Lee B.S. ; Bae H.D. ; Lee S.J. ; Cho S.B. ; Kim H.K. ; Kim J.H. ; Park B.S. ; Song J.I. ;
Korean Journal of Poultry Science, volume 33, issue 1, 2006, Pages 57~63
This study was conducted to investigate the effect of ventilating system of environmental controlled broiler house on broiler production. Three hundred eighty four broiler chicks (Hubbard, mean live weight of
) were reared for 2 wk. The results of the present study were summarized as follows : 1. Ammonia gas production was lower in the second and the third floors of cages compared with first floor of cages 13.5 and 13.5 vs 14.6 ppm, respectively). The observations of ammonia production in the morning and afternoon were similar. The production of carbon dioxide was not different between morning and afternoon, but it was tended to decrease in the forth floor of cages due to a fresh air 2. A wind velocity in the enclosed house was similar across lower, middle and upper section (0.57m/sec, 0.22m/sec and 0.04msec, respectively). In order to maintain an optimal air flow velocity in the cages, the duct entrance was punched, and then the air flow was full-round in the overall space in the cage. 3. Daily liveweight gain, feed intakes, and feed efficiency were not significant differences among treatments during whole experimental period (P>0.05). Therefore, the present results showed that temperature, moisture and atmosphere controlling were desirable, and air flew evenly in the cage.
Characteristics of Ash (Coal, Wood and Rice Hull) and Its Potential Use as an Additive in Poultry Manure for Protecting the Environment
Nahm K.H. ;
Korean Journal of Poultry Science, volume 33, issue 1, 2006, Pages 65~80
Ash amendment to manure holds potential as a method to neutralize manure for reducing odor and reduce phosphorus (P) solubility in runoff from fields where manure has been applied. This review focuses on the literature published about ash characteristics and their environmental uses. There is no uniform physico-chemical definition of the selected ashes (coal fly ash-CFA, wood ash-WA, and rice hull ash-RHA) used in various studies. These ashes vary greatly in their acidity (pH<6.0) or alkalinity (pH>12.5) based on the conditions at which they were farmed and the composition of the ash source. CFA amendment to manure reduced manure-P solubility and application of CFA amended manure to agricultural soils is a method to improve water quality WA may prove to be a valuable manure odor control amendment since WA contains a high level of carbon. A major biomass source is rice hull (husk) which provides an ash source (RHA). The .ice hull and RHA are sources of silica, compromising about 20% and 60%, respectively. So far research has been directed at the use of CFA, WA and RHA as soil amendments, but there is potential use of these materials as manure additives to sequester P and reduce odors.
Comparison of the Chicken Large Intestine to the Large Intestine of Pigs and the Rumen of Cows
Nahm K.H. ;
Korean Journal of Poultry Science, volume 33, issue 1, 2006, Pages 81~95
The large intestine of the chicken differs both anatomically and physiologically from the pig's large intestine and the men of the cow. The chicken's large intestine is less developed than the pig's large intestine or the cow's lumen. This paper summaries these differences. The chicken's large intestine contains a microbiological population similar to that found in the rumen. The chicken's caeca especially contains a large number of microorganisms, but this population varies according to age, fred, maturity, antibiotic use and etc.. Protein is an essential nutrient for the formation of intestinal microvilli. A study showed that the length of the small intestine was 63 % of the total gastrointestinal tract (GIT) length, while caecum was 8.1 %, and the colon and rectum were 4.6 %. The establishment of the microbial population of the small intestine occurs earlier than that of the caeca, but the identity of approximately 90 % of microbial population of the chicken GIT is hon. Recent studies have shown that energy, volatile fatty acid (VFA) and electrolytes that are found in the large intestine may be absorbed to a certain degree. The chicken small intestine is the primary location for digestion with a variety of enzymes being secreted here. Much research is being conducted into the digestion of sucrose thermal oligosaccharide caramel (STOP), fructooligosaccharides (FOS), mannanoligosaccharide (MOS), galactooligosaccharides (GOS) and isomalto-oligosaccharides (IMO) in the chicken caeca and large intestine. Excessive fibre content in the feed has detrimental effects, but proper fibre supplementation to chicken diets can improve the length and capacity of the small intestine.