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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Journal of Poultry Science
Journal Basic Information
Journal DOI :
The Korean Society of Poultry Science
Editor in Chief :
Volume & Issues
Volume 39, Issue 4 - Dec 2012
Volume 39, Issue 3 - Sep 2012
Volume 39, Issue 2 - Jun 2012
Volume 39, Issue 1 - Mar 2012
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A Comparison of Feeding Multi-Probiotics and Fermented Ginseng Byproducts on Performance, Intestinal Microflora and Immunity of Broiler Chicks
Hassan, Md. Rakibul ; Choe, Ho Sung ; Ryu, Kyeong Seon ;
Korean Journal of Poultry Science, volume 39, issue 4, 2012, Pages 253~260
DOI : 10.5536/KJPS.2012.39.4.253
This study was undertaken to investigate the influence of multi-probiotics, fermented ginseng byproducts and fermented sulfone as an alternative to probiotics on performance, intestinal microflora and immunity of broiler. A five weeks trial was conducted with one day old Ross
Ross broilers (n=340), divided into five groups which further divided into 4 replicates with 17 birds in each replicate. Birds were assigned to 5 dietary treatments as control, antibiotic avilamycin (AB), multi-probiotics (MP), fermented sulfone (FS) and fermented ginseng byproducts (FGB). Growth parameters were recorded on weekly basis while rest of the parameters viz. blood and faeces were collected at the end of the experiment. Growth parameters were not affected statistically by dietary treatments. However, numerically, higher body weight, splenocytes proliferation and lower total cholesterol and LDL values were found in MP treatment (P>0.05). Salmonella spp. count (
) and E. coli (P<0.001) concentrations in the ileum were found lowest in AB treatment while FS group showed lowest level of yeast (P<0.10) and Lactobacillus spp. (
). Fecal ammonia and
emission was significantly decreased in FGB than other dietary treatments (P<0.05). It was concluded that multi-probiotics would be valuable feed additives to improve the growth performance, Lactobacillus proliferation and immunity of broiler chicks.
Effect of Different Housing System on the Performance, Bone Mineral Density and Yolk Fatty Acid Composition in Laying Hen
Hassan, Md. Rakibul ; Sultana, Shabiha ; Choe, Ho Sung ; Ryu, Kyeong Seon ;
Korean Journal of Poultry Science, volume 39, issue 4, 2012, Pages 261~267
DOI : 10.5536/KJPS.2012.39.4.261
Different housing systems have considerable influence on performance in poultry production. Therefore, the present study was undertaken to investigate the impact of different housing systems on the performance, bone mineral density and egg yolk fatty acid composition in laying hen. Hy-line brown pullets (n=450) of 12 weeks age were randomly divided into 3 housing systems with 6 replicates of 25 birds in each room. A diet with 2,750 kcal/kg ME and 16.5% CP was assigned to all birds. The pullets provided free access to feed and water. Significantly (P<0.05) higher values for egg production, egg mass and feed conversion efficiency were found in battery cages, however egg weight, egg shell color and breaking strength was remarkably (P<0.05) higher in floor system. The albumin height and Haugh unit were significantly higher (P<0.05) in battery cages which was statistically similar to aviary housing system. The egg yolk fatty acids concentration of linoleic acid and linolenic acids were significantly higher in aviary and in floor system, respectively, however both values were lower in battery cages. Saturated and unsaturated fatty acid content (%) in egg yolk did not influence by any housing systems. Bone mineral density was significantly higher (P<0.05) in floor and aviary housing system than that of battery cage system. It was concluded that in battery cages the egg production and composition maximized, however higher bone mineral density and yolk fatty acids content can be improved in the laying hen reared on floor and aviary housing systems.
Increased Chicken Consumption along with the Coordinated Structure Change in Korea
Park, Young In ;
Korean Journal of Poultry Science, volume 39, issue 4, 2012, Pages 269~271
DOI : 10.5536/KJPS.2012.39.4.269
The chicken has been growing in Korea for more than a thousand years according to the history book and commercially rising for broiler meat only since 1960's. As income increased mainly due to improved economy, it changes the habit of eating especially chicken meat. The structure changes into a coordinated production and marketing system which forced the prevailed small and independent producers to become a contract farmer under the vertically controlled practices. This coordinated structure began in 1970's and evolved continually to occupy around 90 percent of the market in 2010 with some ten (10) private brands being advertising. The industrial organizations have also conducted the generic promotion by a farmer's check-off program. Over the past 20 years, chicken import steadily increased to meet about 25 percent of the domestic market while the export showed negligible growth. As a whole, the structure change and international trade devoted to increased chicken consumption from 2 kg with the independent operation to 11 kg currently under the coordinated system and import. It is predicted that chicken consumption will grow in years to come and the import will also increase in addition to local productions, considering the free trade agreement that has already been in practice with EU and US to open the market eventually from all sources of supply worldwide.
Production of Immunospecific Egg Yolk Antibody with Recombinant Staphylococcal Enterotoxin B (SEB) Protein
Lee, Seong ; Lee, Sang-Rae ; Jung, Kyung Min ; Kim, Jung Woo ;
Korean Journal of Poultry Science, volume 39, issue 4, 2012, Pages 273~278
DOI : 10.5536/KJPS.2012.39.4.273
Staphylococcal enterotoxin B (SEB), which is a bacterial superantigen produced by Staphylococcus aureus, is associated with serious diseases, including food poisoning and atopic dermatitis. This study was performed to produce about 30 kDa of recombinant SEB protein and to immunize in chickens to acquire the specific egg yolk antibody (IgY) against the recombinant SEB. Chickens were immunized with the recombinant SEB intramuscularly in the breast muscle by injection 3 times at intervals of two weeks. Serum- and egg yolk-antibody titers of hens against SEB were highest at 4 weeks after first immunization. In western blot, anti-recombinant SEB IgY was reacted immunospecifically against the recombinant SEB and commercialized SEB. These results suggested that the recombinant SEB antigen could be used as an immunogen to elicit antibody (IgY) against SEB and the anti-recombinant SEB IgY could neutralized staphylococcal enterotoxin B effectively.
Estimation of Genetic Parameters for Serum Clinical-Chemical Traits in Korean Native Chickens
Park, Hee-Bok ; Seo, Dong-Won ; Choi, Nu-Ri ; Choi, Jun-Seung ; Heo, Kang-Nyeong ; Kang, Bo-Seok ; Jo, Cheorun ; Lee, Jun-Heon ;
Korean Journal of Poultry Science, volume 39, issue 4, 2012, Pages 279~282
DOI : 10.5536/KJPS.2012.39.4.279
Clinical-chemical traits are commonly used biomarkers to examine the health status of individuals. There is an appreciable range of normal variation in most clinical-chemical traits and the determining factors of this variation have been relatively uninvestigated in chickens. The aim of this study was to estimate the genetic parameters (i.e., heritability, genetic correlation) for 8 clinical-chemical traits (glucose, total protein, creatinine, high-density lipoprotein cholesterol, total cholesterol, glutamic oxaloacetic transaminase, glutamic pyruvic transaminase and amylase) in an
intercross established by purebred breeding among the 5 lines of Korean native chickens. Phenotypic data were collected from approximately 600
animals. The genetic parameters for the clinical-chemical traits estimated by a mixed animal model using the restricted maximum likelihood method were presented. Estimated heritabilities ranged from 8.9% (glucose) to 39.6% (high-density lipoprotein cholesterol). Interestingly, both the sign and the size of the genetic and phenotypic correlations were largely different between the same several pair of clinical-chemical traits. The findings in this study will provide useful information to address issues in both quantitative trait locus study and genetic management in Korean native chickens.
Comparison of Growth Performance between Korean Native Layer Chickens and Imported Layer Chickens at Early Rearing Stage
Kim, Young Sin ; Kim, Jae-Hwan ; Suh, Sang Won ; Kim, Hyun ; Byun, Mi-Jeong ; Kim, Myung-Jick ; Kim, Ji Sung ; Lee, Ji Woong ; Choi, Seong-Bok ;
Korean Journal of Poultry Science, volume 39, issue 4, 2012, Pages 283~290
DOI : 10.5536/KJPS.2012.39.4.283
The objective of this study was to compare the growth performance between Korean native layer chickens and imported layer chickens at early rearing stage. Total number of chicks analyzed in this study was 276 and feeding period was conducted from July 24, 2012 for 10 weeks. Five strains including 2 Korean native strains: A=Korean Native Black (Chungcheongbuk-do) and B=Korean Native Yellowish Brown (Gyeongsangbuk-do) and 3 imported layer strains: C=White Leghorn (Gyeongsangnam-do), D=White Leghorn (Seoul), and E=Ameraucanas (Gyeongsangbuk-do) were used to analyze the following traits such as fertility, hatchability, body weight at a different growing stage, average body weight gain, and feed conversion ratio. The fertilities and hatchabilities of strains were 93.88% and 95.65% in strain A, 81.75% and 86.24% in strain B, 82.25% and 88.15% in strain C, 79.25% and 90.85% in strain D, and 71.50% and 88.11% in strain E, respectively. A viability was excellent in strains A and E to be more than 98% and was low in strain D to be 86.67% at a whole week. The strain A had greater body weight during growing stages (p<0.05) than the other strains. The shank length of strain D of
was the highest value at 10 weeks of age among strains (p<0.05). The phenotypic correlation coefficients of strains A and D between an average body weight gain and a shank length were 0.63 and 0.73 during 0~2 wk, 0.70 and 0.55 during 2~4 wk, 0.55 and 0.54 during 4~6 wk, 0.50 and 0.24 during 6~8 wk, and 0.46 and 0.29 during 8~10 wk, respectively. The Korean native hens may have potential abilities to be used as an excellent seed stock for poultry industry.
Effects of N-Methylacetamide on the Viability, Fertility and Hatchability of Cryopreserved Ogye (Korean Native Black Fowl) Semen
Choi, Jin Seok ; Kim, Sung Woo ; Shin, Dan-Bi ; Ko, Yeoung-Gyu ; Do, Yoon-Jung ; Kim, Dong-Hun ; Kong, Il-Keun ; Park, Soo-Bong ;
Korean Journal of Poultry Science, volume 39, issue 4, 2012, Pages 291~295
DOI : 10.5536/KJPS.2012.39.4.295
The use of methylacetamide (MA) as a cryoprotective agent for freezing Korean Native Black rooster Ogye semen was examined with artificial insemination. The diluted Ogye semen with HS-1 was subjected for 2 step dilution method of cryopreservation in which the final concentration of MA was adjusted to 7.5%. The sperm viability after thawing was reduced from
which was confirmed by live-death analysis based on Fluorescence-Activated Cell Sorting (FACS). The rates of fertilized eggs with fresh or frozen-thawed semen were reduced from
at day 7 with significant difference. However, the hatching rates of experiments at day 21 did not shown difference between
(P<0.05). With these results, the utilization of MA for freezing of Ogye spermatozoa could affect on viability of frozen-thawed semen but not on the fertility of lain eggs and hatchability of fertilized eggs and also provide possible tools of freezing for poultry genetic resource conservation.
Amino Acids Digestibility of Corn Distillers Dries Grains with Solubles in Broiler Chickens
HwangBo, Jong ; Hong, Eui-Chul ; Na, Jae-Cheon ; Kim, Ji-Hyuk ; Kang, Hwan-Gu ; Kim, Min-Ji ; Kim, Dong-Wook ; Kim, Won ;
Korean Journal of Poultry Science, volume 39, issue 4, 2012, Pages 297~303
DOI : 10.5536/KJPS.2012.39.4.297
To investigate the effects of dietary substituent of corn distiller's dries grains with solubles (CDDGS) on the amino acid digestibility of broiler diet, twenty four Ross broilers (6-wk-old) were used in this study. Basal diet (CP 19%, ME 3,150 kcal/kg) was formulated on corn-soybean meal and two levels of CDDGS (6 and 12%) were supplemented to basal diet. CDDDS levels (0, 6 and 12%) and 4 different sites of chicken intestines (distal end of jejunum, the middle part of the ileum, the distal end of ileum and the distal end of the rectum) were evaluated factorial as
three arrangement. Statistical analysis did not show any significant interaction between dietary treatments and the sites of the intestines in amino acid digestibility (P>0.05). There was no significant difference among the sites of chicken intestines in the digestibility (P<0.05). The digestibility of lysine (essential amino acid) and glycine (non-essential amino acid) decreased at increasing supplementation of CDDGS (P<0.05). There was no significant difference on the digestibility of other amino acids studied. In conclusion, the result of this work showed that CDDGS can use as alternative resources in broiler diets.
Performance and Carcass Ratio of Large-type Female Broiler at Different Stocking Densities
Na, Jae-Cheon ; HwangBoa, Jong ; Kim, Ji-Hyuk ; Kang, Hwan-Gu ; Kim, Min-Ji ; Kim, Dong-Wook ; Choi, Hee-Cheol ; Hong, Eui-Chul ;
Korean Journal of Poultry Science, volume 39, issue 4, 2012, Pages 305~310
DOI : 10.5536/KJPS.2012.39.4.305
This work was carried out to investigate performance and carcass yield of large-type broilers at different stocking densities. Treatments were T1 (9.1 birds/
), T2 (10.3 birds/
) and T3 (11.5 birds/
) by the stocking density. Four hundred eight 1-day-old Arbor Acre broiler chicks were used for six weeks (starter, 0~1 wks; earlier, 1~3 wks; finisher, 3~6 wks) and divided into 3 treatments (4 replications/treatment, 30, 34 or 38 birds/replication). Research indexes were rearing viability ratio, body weight, body weight gain, feed intake, feed conversion ratio, production efficiency factor and carcass ratio. Rearing viability ratio (%) was 89% or more for all treatments and there was no significant difference on weekly rearing viability ratio (%). Body weight of T2 was the greatest and that of T3 was the lowest at 1 weeks old (P<0.05). Body weight gain of T2 was the greatest and that of T3 was the lowest at 0~1 weeks old (P<0.05). However, body weight gain of T3 was the greatest and that of T1 was the lowest at 1~2 weeks old (P<0.05). Body weight gain of T2 was the greatest as 3,031 g among treatments at 0~6 weeks old (P<0.05). Feed intakes of T1, T2 and T3 were 1,417 g, 1,265 g and 1,355 g, respectively, and that of T1 was the greatest among treatments (P<0.05). There was no significant difference on body weight, body weight gain and feed intake. Feed conversion ratio of T1 was the greatest among treatments at 1~2 wks, 3~4 wks and 0~6 wks old (P<0.05). Production efficiency factors of T1, T2 and T3 were 363.5, 388.3 and 358.3, respectively, and there was no significant difference among treatments. Wing meat ratio of T1 was the higher compared to other treatments at the age of 4 wk (P<0.05). There was no significant difference on carcass ratio and partial meat ratio among treatments. Neck meat ratio of T2 was the lowest among treatments (P<0.05). This result may provide the standard data of different stocking densities for large-type broiler and the further research is needed.
Mitochondrial D-Loop Variations for Discrimination of Commercial Korean Native Chicken Populations
Sultana, Hasina ; Hoque, Md. Rashedul ; Seo, Dong-Won ; Kang, Bo-Seok ; Heo, Kang-Nyeong ; Jo, Cheorun ; Lee, Jun-Heon ;
Korean Journal of Poultry Science, volume 39, issue 4, 2012, Pages 311~315
DOI : 10.5536/KJPS.2012.39.4.311
The increasing demand for Korean native chicken meat indicates that the discovery of haplotypes is very important from both economic and conservation points of view. In this study, mtDNA D-loop sequences from two crossbred Korean native chicken populations of 138 individuals were investigated. Twenty six nucleotide substitutions were identified from sequence analysis and were classified into 12 haplotypes. The haplotype H_8 represents 73.47% of Woorimatdag (chicken population) sequences, which were identified in all five Woorimatdag chicken populations investigated. The H_7 haplotype (Dhap1) for D population covers 45% sequences, which indicate maternal inheritance from black Korean native chicken. On the other hand, Chap3 and Chap4 for C population are specific haplotypes, as H_5 and H_2, respectively. Based on the network profiles, six SNPs (C199T, A239G, G242A, A291G, T330C and C391A) of the D-loop region are effective markers for discrimination between Woorimatdag and Hanhyup chicken populations. Also, the phylogenetic analyses of Woorimatdag and Hanhyup chicken populations were used to identify the genetic relationships among the haplotypes. The results presented here can be used for developing molecular markers to discriminate between two commercial Korean native chickens.