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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
Selecting the target year
Effect of Raising Periods on Amino Acids and Fatty Acids Properties of Chicken Meat
Chae, Hyun-Seok ; Choi, Hee-Chul ; Na, Jae-Cheon ; Kim, Min-Ji ; Kang, Hwan-Ku ; Kim, Dong-Wook ; Kim, Ji-Hyuk ; Jo, Soo-Hyun ; Kang, Gun-Ho ; Seo, Ok-Suk ;
Korean Journal of Poultry Science, volume 39, issue 2, 2012, Pages 77~85
DOI : 10.5536/KJPS.2012.39.2.077
This study was to investigate the amino acid, free amino acid and fatty acid composition of chicken breast muscle and legs muscle by different raising periods (30, 36 and 42 days). In amino acid composition, the glutamic acids were 3.63% at 30 days, 3.63% at 36 days and 3.54% at 42 days in the breast muscle. The glutamic acid contents in the breast and leg muscle were decreasing tendency as raising periods increased. The total free amino acids were 370.6 mg at 30 days, 235.9 mg at 36 days and 246.3 mg at 42 days in the breast muscle, and those were 470.16 at 30 days, 326.4 mg at 36 days and 321.9 mg at 42 days in the leg muscle. Total contents of free amino acids were higher in chicken legs muscle than in chicken breast muscle. The linoleic acids, the most essential fatty acid, were contained 17.84% at 30 days, 17.84% at 36 days and 20.33% at 42 days in chicken breast muscle. These results indicated that the fatty acid composition increased as raising periods increased. There were 0.69% DHA (Docosahexaenoic acid) in chicken breast muscle at 30 days, 0.96% at 36 days and 1.29% at 42 days. From these results, the DHA contents in chickens were also increased as raising periods increased.
Effects of Varying Levels of Dietary Metabolizable Energy and Crude Protein on Growth Performance and Carcass Characteristics in Layer-type Growing Male Chicks
Yun, Jeong-Geun ; Kim, Hong-Rae ; Oh, Sung-Taek ; Zheng, Lan ; Choi, Young-In ; Choo, Yun-Kyung ; An, Byoung-Ki ; Lee, Sung-Ki ; Kang, Chang-Won ;
Korean Journal of Poultry Science, volume 39, issue 2, 2012, Pages 87~95
DOI : 10.5536/KJPS.2012.39.2.087
This experiment was conducted to investigate the effects of varying levels of metabolizable energy (ME) and crude protein (CP) on growth performance and carcass characteristics in layer-type growing male chicks. Nine hundred 1-d-old Hy-Line Brown male chicks were randomly allocated to 30 pens in a
factorial design. The experimental diets contained 2 levels of ME (2,800 kcal/kg and 2,950 kcal/kg) in combination with 3 levels of CP (17%, 18.5%, and, 20%). A significant interaction of ME and CP on feed intake was observed (p<0.05). No interaction was observed between ME and CP for 53 d BW gain or FCR, which improved linearly with dietary CP levels (p<0.05). A significant interaction or tendency was observed between ME and CP levels. The intake of ME for 1 g BW gain was linearly decreased with increasing CP levels (p<0.001). The intake of CP per bird was significantly increased in low ME (2,800 kcal/kg) treatment than that of the high ME treatment (2,950 kcal/kg) (p<0.05), and dietary CP level had more influence on CP intake for gram BW gain than level of ME. The relative weights of liver, spleen, breast meat and, leg were not influenced by the dietary treatments. Serum BUN, albumin, creatinine, and the activities of GOT and GPT were not influenced significantly by the diet treatment. In conclusion, the growth performance in layer-type male chicks was linearly increased when the level of dietary CP increased. The ME and CP did not affect the carcass characteristics and blood profiles. Therefore, the optimum levels of dietary ME and CP to improve the growth were 2,800 kcal/kg and above 18.5% in layer-type growing male chicks, respectively.
Seroprevalance of Newcastle Disease Virus in Wild Birds in Korea
Choi, Kang-Seuk ; Jeon, Woo-Jin ; Kye, Soo-Jeong ; Yoon, Soon-Seek ; Jeong, Woo-Seog ; Kim, Ji-Ye ; Kwon, Jun-Hun ;
Korean Journal of Poultry Science, volume 39, issue 2, 2012, Pages 97~104
DOI : 10.5536/KJPS.2012.39.2.097
Newcastle disease virus (NDV) infects a variety of birds with a wide range of clinical signs from asymptomatic to severe. During a 10-month period in 2011, a total of 1,024 sera from wild birds including 42 species of birds in 8 orders were collected and the seroprevalence of NDV in wild birds was evaluated by hemagglutination inhibition (HI) test. Evidence of NDV infection was observed in 12.6% (129/1,024) of wild birds with a maximum prevalence reported in Mandarin duck (27.8%, 32/115) followed by Mallard duck (20.8%, 57/274), Spot-billed duck (11.9%, 36/303), Pintail (2.9%, 1/34), Black-tailed gull (2.9%, 1/34), White-fronted goose (1.8%, 1/56) and Common teal (1.4%, 1/69). None of the other 35 species of wild birds were antibody-positive for NDV. Mandarin duck, Mallard duck and Spot-billed duck showed high sero-prevalance of 12.2% to 42% during winter season (November to March). Our results indicate that Mandarin duck, Mallard duck and Spot-billed duck might be natural reservoirs for NDV in Korea and the prevalence of NDV infection in wild birds displayed a seasonal pattern with high prevalence of NDV in winter season (November to March).
Comparative Study on Various Growth Performances of Korean Oge and White Leghorn Chickens
Kang, Kyung-Soo ; Jang, Hyun-Jun ; Lee, Hyung-Chul ; Kim, Sung-Kyu ; Kim, Jae-Hwan ; Choi, Seong-Bok ; Rengaraj, Deivendran ; Han, Jae-Yong ;
Korean Journal of Poultry Science, volume 39, issue 2, 2012, Pages 105~112
DOI : 10.5536/KJPS.2012.39.2.105
Genetic resource conservation of indigenous species is important to conserve terrestrial, aquatic and avian species throughout the world. The native Korean Oge (KO) chickens are important and protected indigenous avian species in Korea. This KO breed is very popular in Korea because of its external appearances of blackish color. The characterization of morphology and growth performances of KO were performed since 1980s, however the information is still not sufficient for breed selection. In this study, we compared various growth performances including body growth, tibia length, shank length, chest width, chest grith and length of tail feather between male and female chickens of KO and widely known White Leghorn (WL) breeds at 1 week, 2 weeks, 5 weeks, 10 weeks, and 24 weeks. We observed differences on various growth performances at different aged groups between KO and WL chickens. This study may help for the selection of chicken breeds based on age, body growth and meat production.
Biological Properties of Vero Cell-Adapted Newcastle Disease Virus
Choi, Kang-Seuk ; Park, Mi-Ja ; Kye, Soo-Jeong ; Kim, Ji-Ye ; Kwon, Jun-Hun ;
Korean Journal of Poultry Science, volume 39, issue 2, 2012, Pages 113~120
DOI : 10.5536/KJPS.2012.39.2.113
Newcastle disease virus (NDV) Kr005/V strain was generated through 55 serial passages of NDV Kr005 strain in Vero cells. The Kr005/V virus yielded high infective titers of
in Vero cells and the infected cells showed cytopathic effects such as marked cell rounding, though less frequent syncytia. The Kr005/V virus was heat-stable and classified into the lentogenic type with a Mean Death Time (MDT) of 120h or greater while the Kr005 strain was heat-labile and velogenic (MDT of 49.6 h). Only the single amino acid substitution (T to S) was observed at position 433 of the HN protein of the Kr005/V strain, whereas no amino acid change was found in the F protein. The Kr005/V input virus correlated well (correlation coefficient
Effect of Dietary Supplementation of Plum or Omija on Growth Performance, Blood Biochemical Profiles and Antioxidant Defense System in Broiler Chickens
Ko, Young-Hyun ; Moon, Yang-Soo ; Sohn, Sea-Hwan ; Jung, Chang-Yong ; Jang, In-Surk ;
Korean Journal of Poultry Science, volume 39, issue 2, 2012, Pages 121~131
DOI : 10.5536/KJPS.2012.39.2.121
To investigate the effect of dietary supplementation of freeze-dried plum (Prunus mume Siebold and Zucc., PMS) or omija meal (Schizandra chinensis Baill.; SCB) on growth performance, organ weights, blood biochemical profiles and antioxidant defense system, a total of 96, 3-day-old male broiler chickens were assigned to three dietary groups: (1) control diet, (2) control diet supplemented with PMS at 0.2%, (3) control diet supplemented with SCB at 0.2%. In vitro antioxidant activity, plum and omija extracts showed a significantly higher radical scavenging activity (RSA). In particular, omija extract showed much higher RSA than plum extract. Dietary addition of plum or omija did not affect body weight, feed intake, feed conversion and the relative weight of digestive organ in birds. Plasma triglyceride significantly (P<0.05) increased in birds fed the diet supplemented with omija compared with those fed control diet without affecting the other blood biochemical components. Furthermore, reduced form of glutathione (GSH) in the liver or muscle significantly (P<0.05) increased in birds fed the diet fortified with plum and omija. However, the specific activities of superoxide dismutase (SOD), glutathione peroxidase (GPX) and glutathione-S-transferase (GST) and MDA (malondealdehyde) in the intestine, liver and muscle were not altered by dietary antioxidant sources. In conclusion, dietary plum and omija resulted in a positive effect on some antioxidant indicators such as increased in vitro RAS in extracts and in vivo GSH level in the liver and muscle without affecting growth performance. Therefore, dietary addition of 0.2% of plum or omija could be applicable as potential antioxidant sources in broiler chick production.
Performance of Laying Period of Two-Way Crossbreed Parent Stock Korean Native Chickens for Producing of Korean Native Commercial Chickens
Kang, Bo-Seok ; Choo, Hyo-Jun ; Kim, Hak-Kyu ; Kim, Chong-Dae ; Heo, Kang-Nyeong ; HwangBo, Jong ; Suh, Ok-Suk ; Choi, Hee-Cheol ; Hong, Eui-Chul ;
Korean Journal of Poultry Science, volume 39, issue 2, 2012, Pages 133~141
DOI : 10.5536/KJPS.2012.39.2.133
This study was carried out to investigate the performance of laying period of two-way crossbred of Korean native chickens. A total of four hundred eighty female 2-crossbred chicks that restored strains and were aboriginal at National Institute of Animal Science. Treatments were four crossbreds (4 replications/crossbred, 30 birds/replication) as A) C strain
S strain, B) C strain
H strain, C) R strain
S strain, and D) L strain
H strain, respectively. There were no significant difference on age, egg weight, and body weight at first egg among crossbreds (P>0.05). Body weight of D crossbred was lower compared to other crossbreds at the age of 24, 32, 40 and 60 week (P<0.05). Feed intake of A crossbred was highest among crossbreds (P<0.05). Weekly egg weight of A crossbred was the highest among crossbreds all laying period except 48~52 and 60~64 weeks. Hen-house egg production of A and B crossbreds was higher than that of C and D crossbreds (P<0.05). Hen-day egg production decreased after at the age of 36 weeks. Weekly egg production of A and B crossbreds was higher compared to C and D crossbreds (P<0.05). These results suggested the basic data on the record of laying period of 2-crossbreed Korean Native Chickens.
Performance of Growing Period of Large-Type Korean Native Ducks
Hong, Eui-Chul ; Choo, Hyo-Jun ; Kang, Bo-Seok ; Kim, Chong-Dae ; Heo, Kang-Nyeong ; Lee, Myeong-Ji ; HwangBo, Jong ; Suh, Ok-Suk ; Choi, Hee-Cheol ; Kim, Hak-Kyu ;
Korean Journal of Poultry Science, volume 39, issue 2, 2012, Pages 143~149
DOI : 10.5536/KJPS.2012.39.2.143
This work was carried out to investigate the performance of growing period of large-type Korean native ducks. A total of four hundred twenty female and male duck chicks generated from A and B strains of ducks. Groups were four crossbreds (3 replications/crossbred, 35 birds/replication) as
factors (2 strains, A and B; 2 genders, female and male). On the body weight, male of B strains was the highest among 4 treatments after the age of 4 week (P<0.05). Body weight of B strain was higher than that of A strain at all period (P<0.05). Body weight of male was higher compared to that of female after the age of 4 week (P<0.05). On the body weight gain, male of B strain was the highest and female of A strain was the lowest among 4 treatments at 0~8, 0~12, 0~16 and 0~20 weeks (P<0.05). Body weight gain of male was higher than that of female after the age of 4 week (P<0.05). On the feed intake, male of B strain was the highest among 4 treatments from the age of 0 week and to the age of 4, 12, 16 and 20 week (P<0.05). Feed intake of male was higher than that of female at 0~12, 0~16 and 0~20 weeks (P<0.05). On the feed conversion ratio, male of B strain was the highest among other treatments 0~4 weeks and female of A strain was at 0~8 and 0~12 weeks (P<0.05). Feed intake of female was higher compared to that of female at 0~8 weeks and male was high at 0~20 weeks. These results provided the basic data on the record of growing phase of large-type Korean native ducks.
An Analysis on Students` Behavior for Consumption of Chicken Meat at the Cafeterias of University
Han, Jae-Han ; Kim, Soung-Hun ;
Korean Journal of Poultry Science, volume 39, issue 2, 2012, Pages 151~155
DOI : 10.5536/KJPS.2012.39.2.151
The cafeteria of university is one of the largest consumption point for the chicken meat of university students. However, few papers conducted research to analyze the consumption behavior of university students. The object of this paper is to conduct survey analysis about the students` behavior for consumption of chicken meat at the cafeterias of university and to measure WTP (Willingness-to-pay) for food cooked with domestic chicken meat. The results present that most of students show higher preference of domestic chicken meat and that they can pay 4,426 Korean won for food cooked with domestic chicken meat.
Effect of Feeding Thymus vulgaris Powder on the Productivity, Egg Quality and Egg Yolk Fatty Acid Composition in Laying Hens
Park, Seong-Bok ; Lee, Kyeong-Jin ; Lee, Wang-Hyu ; Ryu, Kyeong-Seon ;
Korean Journal of Poultry Science, volume 39, issue 2, 2012, Pages 157~161
DOI : 10.5536/KJPS.2012.39.2.157
The objective of this study was to evaluate the effects of feeding dried Thymus vulgaris powder (TVP) on the layer performance, egg quality and egg yolk fatty acid composition. Two hundred eighty eight, 35 weeks old Brown nicks were allocated in the cage for five TVP (0, 0.25, 0.5, 1.0 and 2.0%) diets with four replicates in each treatment. Each basal diet contained 16.0% CP and 2,800 kcal/kg ME and supplied to layers for 8 weeks. Egg production and egg weight were not statistically different but numerically increased in birds fed 2.0% TVP than other treatments. Egg mass was not consistent depending on the TVP addition levels in diets. Feed intake was significantly lower in TVP addition treatments than the control (p<0.05), however, feed conversion was not significantly differed among control and treatments (p<0.05). Dietary addition of 2.0% TVP showed high values on albumin height, Haugh unit and egg yolk color and they are 7.93, 86.79 and 7.20, respectively (p<0.05). Palmitic and arachidonic acids were remarkably lowered when 2.0% TVP added to basal diets and then fed to birds for 8 weeks, in contrast, significantly higher linolenic acid composition was determined in birds fed 2.0% TVP (p<0.05). As the results, the highest unsaturated fatty composition and UFA/SFA ratio were observed in 2.0% TVP treatment as compared to those of control and other treatments. Therefore, the results indicate that the Thymus vulgaris powder addition to basal diet tended to have positive effects on egg quality and egg yolk fatty acids composition, and the optimum addition of Thymus vulgaris powder may be 2.0%.