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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 32, Issue 4 - Dec 2005
Volume 32, Issue 3 - Sep 2005
Volume 32, Issue 2 - Jun 2005
Volume 32, Issue 1 - Mar 2005
Selecting the target year
Effect of Dietary Probiotics Supplementation Contained with Astaxanthin Produced by Phaffia rhodozyma on the Productivity and Meat Quality of Ducks
Kim K. S. ; Lee J. H. ; Shin M. S. ; Cho M. S. ; Kim Y. P. ; Cho S. K. ; Kang Y. J. ;
Korean Journal of Poultry Science, volume 32, issue 2, 2005, Pages 73~80
This study was carried out to investigate the influence of dietary probiotics supplementation contained with astaxanthin synthesizing microorganism 'Phaffia rhodozyma' on the productivity and meat quality of ducks. Growth performance carried out during 45 days for day-old ducks offered in Joowonori incorporated. A total of 150 day-old ducks(cheribery) of mixed sex(M:F=1:1) were allotted into 5 groups. The basal diets were added with low levels of astaxanthin containing probiotics. We investigated mortality, bodyweight, and feed conversion used by growth performance. 45day-old ducks were butchered and carried out nutrients composition analysis, meat quality test, organoleptic examination, fatty acid analysis, cholesterol analysis, storage test, and astaxanthin concentration analysis. Control showed
mortality and treatments showed
mortality. These results showed improvement of immunity, for influence of dietary probiotics supplementation contained with astaxanthin. The control gained 2.68 kg and treatment gained 2.84 kg. The control was 2.15 and treatment was 1.83 for feed conversion. Treatment was increased feed conversion than control as significantly. The results of meat quality test showed that treatment was tender and taste more than control. The results of nutrients composition analysis showed that treatment was produced low fat and high protein meat. Ducks meat of treatments contained higher unsaturated fatty acid and lower cholesterol than control. The case of carotenoids confirmed that astaxanthin and
were accumulated in duck meat.
Effects of Dietary Kaolin on the Performance, Product Quality and Feeding Environment of Growing Ducks
Lee W. J. ; Lee K. H. ;
Korean Journal of Poultry Science, volume 32, issue 2, 2005, Pages 81~87
A study was carried out to examine the effects of dietary kaolin on the performance, feed and nutrient efficiency, meat quality and feeding environment using 200 day-old growing ducts. Four replicates of 10 birds each was assigned to diets containing 0(C), 1 (T1), 2(T2), 3(T3) and
of kaolin. Body weight gain in T1 and T2 were higher than in $C(p<0.05)$ whereas weight gain in T3 and T4 were not significantly different from the control. Feed intake and feed conversion ratio tended to increased as the level of dietary kaolin increased, but without significant differences among treatments. Mortality of growing ducks during 6 week period was not significantly different among treatments. Dressing percentage was highest in T1 and lowest in T4 $(p<0.05)$. The utilizability of nutrients except for crude fat Increased$(p<0.05)$, as the level of dietary kaolin increased. Moisture content and
gas emission of excreta was not significantly influenced by dietary kaolin.
gas emission of excreta in T2, T3 and T4 was lower compare to that in C and $T1(p<0.05)$. Cholesterol content in breast and thigh meat was not different among treatments. Values for pH, WHC, TBARS, POV and Cooking loss of breast and thigh meat were not significantly different or did not show any trend among treatments.
Effect of Feeding Extruded Food Waste and Animal Manure Mixture Diets on Laying Performance and Egg Quality in Laying Hen
Kim C. H. ; Pak J. I. ; Lee K. H. ;
Korean Journal of Poultry Science, volume 32, issue 2, 2005, Pages 89~96
This studies were conducted to investigated the feeding effects of extruded broiler manure(BMERF) mixture and swine manure(SFERF) mixture on laying performance and egg qualify of laying hens. As a experimental feed, broiler manure, corn and tapioca were mixed in 50, 30 and
to use for treated extrusion feed(BMERF, Exp. 1) and food waste(FW), swine manure and com were also mixed in 40, 40 and
to use it(SFERF, Exp. 2) and implemented during 12 weeks, four replication and 30 chick of each treatment. The nutritional ingredients(protein, energy and calcium contents) of food waste, broiler manure and swine manure had been significantly improved(p<0.05) when handling extrusion. In the Exp. 1, the feed intake was much higher BMERF
than control and BMERF $10\%(p<0.05)$, the egg production of control, BMERF
were not significantly difference(p>0.05), but BMERF
was significantly lower(p<0.05). The feed efficiency of control and BMERF
were not significantly difference(p>0.05), but BMERF
were significantly lower(p<0.05). York color, White height and Haugh unit did not affected by BMERF additive. In the Exp. 2, the feed intake of control, FW
were not significantly difference(p<0.05), but FW
were significantly higher(p<0.05). The egg production of SFERF
were not significantly difference(p>0.05) with control, but FW
were significantly lower(p<0.05). The feed efficiency was similar tendency to the egg production, however, the egg weight, york color, white height and haugh unit were not significantly difference among each treatments(p>0.05).
Morphological Study on the Mast Cell of Proventriculus in Pheasant (Phasianus colchicus)
Lee Y. H. ;
Korean Journal of Poultry Science, volume 32, issue 2, 2005, Pages 97~100
Mast cells have been studied extensively in various animals including rats and mice, whereas little is known the morphological data about pheasant mast cells. Here, morphological features of Korean pheasant mast cells are described in this study using light and electron microscopes. For light microscopy, mast cells had many metachromatic granules stained with toluidine blue in the cytoplasm. The fixation with
neutral buffered formalin blocked staining of most mast cells but a modified Karnovsky solution proved to be a good fixative. In Korean pheasants, toluidine blue stained more mast cells than did alcian blue. For electron microscopy, the mast cells of the Korean pheasant were round, oval, spindle-like and irregular form and occasionally had a few short cytoplasmic processes. These cells had membrane-bounded granules and poorly developed organells. Some granules in the cytoplasm of the mast cells had bilayer membrane. Most granules were round shape and the membrane of several granules was concave or convex. The granules were composed of three parts, homogenous, particulate and reticular pattern.
Effects of Wood Vinegar Addition for Meat Quality Improvement of Old Layer
Youn B. S. ; Nam K. T. ; Chang K. M. ; Hwang S. G. ; Choe I. S. ;
Korean Journal of Poultry Science, volume 32, issue 2, 2005, Pages 101~106
This study was designed to estimate effect of wood vinegar on meat quality in old Layer which was low production and low economic value. The old layer chickens were used to resource for income increase of layer farm and protein supply. Two hundred forty Isa Brown chickens were assigned with control(Broiler feed), Treatment 1 (Broiler feed with addition of domestic wood vinegar
) and Treatment 2(Broiler feed with addition of foreign wood vinegar
). Feed intake of control group was lower 3g than other treatments. This is the reason of result that what organic acid in wood vinegar of treatment groups affect to feed digestibility, The different of chicken production was depended on ingredient and included value of wood vinegar in domestic and foreign. Foreign wood vinegar have organic acids which that functionally act sexual Pheromone so that promote endocrine matter. This is reason that old Layer chicken increase to egg production rate. Treatment 2 group effect to thigh meat rather than breast meat and improve to value of crude fat and meat color. The Meat quality and sensory test of thigh meat of foreign wood vinegar was better appraise rather than that of domestic wood vinegar. Because foreign wood vinegar make to fine of meat tissue and to decline cooking loss and also to increase juiciness and tenderness on sensory test.
Survey of Manager's Perception of Slaughter House for Poultry Grading
Chae H. S. ; Yoo Y. M. ; Ahn C. N. ; Ham J. S. ; Jeong S. G. ; Lee J. M. ; Choi Y. I. ;
Korean Journal of Poultry Science, volume 32, issue 2, 2005, Pages 107~112
This study was conducted to establish a comprehensive grading guideline for poultry. Guidelines for sampling size and grading were determined on the basis of survey data obtained from chicken processing house. Results were summarized as follows : For application unit, most chicken processing house preferred lot unit to farm unit. Most processing house did not want the total survey method, but selection sampling. At the beginning of the grading system, chicken processing house wanted to apply the system to a particular lots for which the company requests. There were much suggestions for grading not only portion meat, but also whole chicken. Bigger processing house preferred no.
to be graded. Most of large-scale processing houses used more than 81 volts for stunning and cooling tanks by soaking. For shipping chicken, Large-scale processing houses used both individual and box packing while small ones only used box packing.
Evaluation on Immunogenicity and Safety of Avian Influenza Isolate(ADL0401) as a Candidate for the Killed Vaccine against tow-Pathogenic Avian Influenza
Lee J. S. ; Ha D. H. ; Kim J. E. ; Ha B. D. ; Mo I. P. ;
Korean Journal of Poultry Science, volume 32, issue 2, 2005, Pages 113~123
Avian influenza (AI) virus (AIV) is distributed worldwide and it has been isolated from various species of wild and domestic birds. AI transfers with high speed and shows diverse pathogenicity syndroms. In Korea, several low Pathogenic AIV, H9N2, have been isolated from the commercial farms with severe decrease of egg production and mortality resulted in severe economic loss since 1996. Therefore, it has been requested to develop AI vaccines to prevent clinical signs and economic losses from the field infection of AIV. To develop a killed vaccine that efficiently prevents low pathogenic AIV (H9N2), evaluation on the pathogenicity and selection of an inactivator for H9N2 is taking place and is being tested safety and immunogenicity of vaccine produced. Based on the pathogenicity test and viral reisolation test, the ADL0401 isolate is the characteristic low pathogenic AIVs and has fairly similar biologic functions compared with MS96 which is the official low pathogenic AIV (H9N2) and one of the predominant AIV isolated from poultry farms in Korea. In antigenicity tests, the ADL0401 and MS96 virus have no significant antigenic difference. In inactivation tests, the ADL0401 isolates can be easily inactivated with
within 1 hour with a little decrease of HA titer. The vaccine developed in the present report has no harmful effect on bird and forms good immune capability. Therefore, the isolates, ADL0401 can be used for a killed vaccine which can reduce the clinical signs and viral shedding in the birds infected with H9N2 low pathogenic AIVs.
Studies on the Post-hatching Development of Sertoli and Leydig Cells in the Testis of Korean Native Chickens
Tae H. J. ; Jang B. G. ; Choi C. H. ; Park Y. J. ; Yang H. H. ; Kim I. S. ;
Korean Journal of Poultry Science, volume 32, issue 2, 2005, Pages 125~133
Morphometric changes in testicular Sertoli and Leydig cells from hatching to adulthood were studied using Korean native chickens of 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 21, 24, 28, 32, 44, 52 and 64 weeks (n=13 chickens per group) of age. The objective of this study was to understand the developmental phase of the Sertoli and Leydig cells with age. Testis of chickens was fixed by whole body perfusion using a fixative containing
glutaraldehyde in cacodylate buffer, processed and embedded in Epon-araldite. Using 1 Um sections stained with methylene blue-azure II, qualitative and quantitative (stereological) morphological studies were performed. The average volume of a testis of 1 week old Korean native chickens was determined as
and the parameter increased linearly from 1 week to 21 weeks days
, and did not change from 21 weeks to 64 weeks. The volume density of the seminiferous tubules increased with age from
at week 1 to
at week 64. The volume density of the interstitium represents
of the testicular parenchyma at week 1. This proportion progressively diminished during development to reach a value of
at week 64. The volume density of the Leydig cells decreased almost linearly from 1 week
to 14 weeks
and remained unchanged thereafter. In contrast, the Sertoli cells occupied a volume density of
at week 1, increased progressively up to 18 weeks of age
and remained unchanged thereafter. The absolute volume of the Leydig and Sertoli cells per testis increased significantly from week 1 to week 21 but did not change significantly from week 24 to week 64. The number of Leydig cells per testis increased almost linearly from 1 week to 21 weeks, remained high and unchanged with advancing age. The number of Sertoli cells per testis increased gradually with age from 1 week to 14 weeks and remained unchanged thereafter.
Changes in the Profiles of Serum LH, Testosterone, Estrogen and IFG-I during Sexual Development in Male Korean Native Chickens
Tae H. J. ; Jang B. G. ; Choi C. H. ; Park Y. J. ; Yang H. H. ; Kim I. S. ;
Korean Journal of Poultry Science, volume 32, issue 2, 2005, Pages 135~141
Changes in serum estradiol, insulin-like growth factor-1, leuteinizing and testosterone levels, and leuteinizing hormone-stimulated testosterone production per testis in vitro from hatching to adulthood were studied in Korean native chickens of 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 21, 24, 28, 32, 44, 52 and 64 weeks (n=13 chickens per group) of age. The changes in the profiles of the levels in the incubation medium of luteinizing hormone-stimulated (100 ng/mL) testosterone secretion per testis in vitro, and the serum LH, testosterone, estradiol, and insulin-like growth factor-I were determined by radioimmunoassay. Serum estradiol levels were not significantly different at week 4 compared to that of 8, 12, 16, 21, 32, :md 44. Significant decreases were observed at weeks 52 and 64. Serum leuteinizing hormone concentrations were not significantly different from 1 week to 12 weeks, increased gradually up to 32 weeks of age, and declined significantly thereafter; the highest value was at 32 weeks, and the lowest value was detected at 2 weeks of age. Serum insulin-like growth factor-I concentrations increased significantly from 1 week to 16 weeks, remained low and unchanged with advancing age. Serum testosterone concentrations were not significantly different at week 1 compared weeks 2, 4, 6, and 8. Significant increases were observed from 10 weeks to 32 weeks of age. Values at weeks 24, 28 and 32 and at weeks 32, 44, 52, and 64 were not significantly different. The highest value was at weeks 28 and the lowest value was detected at weeks 1 week. LH-stimulated testosterone production per testis in vitro increased gradually with age from 1 to 32 weeks and decreased significantly from 44 weeks to 64 weeks of age.
Influence of Feeding Flammuling veluipes Media on Productivity and Egg Quality in Laying Hens
Na J. C. ; Jang B. G. ; Kim S. H. ; Kim J. H. ; Kim S. K. ; Kang H. S. ; Lee D. S. ; Lee S. J. ; Cheong J. C. ; Lee J. K. ;
Korean Journal of Poultry Science, volume 32, issue 2, 2005, Pages 143~147
This study was conducted to evaluate the feeding value of the Flammulina veluipes media by-product(FMB) in laying hens(Hy-Line Brown). A total of three hundreds sixty were fed corn-soy based experimental diets containing 0(control), 5.0(T1), and
FMB for 12 weeks. There were no significant differences among the treatments in egg production, egg weight, egg mass, feed conversion and viability during the experimental period. Feed intake was significantly(P<0.05) lowered in control(120.5g) than 72(123.9g). There were no significant differences among the treatments eggshell breaking strength, thickness and haugh unit, whereas the yolk color of T1 and T2 were significantly love. than control(p<0.05). In conclusion, the FMB can be used as resource of feed in laying hen feed at
level without effect on performance and egg qualify. However, dietary pigments must be added when the FMB was used as a feed ingredients more than