Korean Journal of Poultry Science最新文献_第6页

Expression Analysis of Chicken Interleukin-34(IL-34) for Various Pathogenic Stimulations 鸡白细胞介素-34(IL-34)在多种致病性刺激下的表达分析

Korean Journal of Poultry Science Pub Date : 2021-09-01 DOI: 10.5536/kjps.2021.48.3.111

Y. Hong

{"title":"Expression Analysis of Chicken Interleukin-34(IL-34) for Various\u0000 Pathogenic Stimulations","authors":"Y. Hong","doi":"10.5536/kjps.2021.48.3.111","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.3.111","url":null,"abstract":"Recently, interleukin 34 (IL-34) was identified as the second functional ligand for macrophage colony-stimulating factor receptor (M-CSFR). IL-34 functions similarly to M-CSF through its binding to the M-CSFR. There is still insufficient information on IL-34 in chickens, which has until now been reported only through predicted sequences and not through experimental research. Thus, to confirm its expression and to determine its potent biological activity, several chicken lines and cell lines were used. Cloning of recombinant chicken IL-34 and M-CSF genes was performed to investigate their modulatory effects on proinflammatory cytokine expression in vitro. The expression levels of IL-34, M-CSF, and M-CSFR genes were upregulated in broiler chickens with leg dysfunction (cause unknown). However, IL-34 was downregulated in most pathogen-stimulated tissues. M-CSFR expression was enhanced by recombinant IL-34 and M-CSF proteins in vitro. IFN-γ expression was enhanced by recombinant IL-34, but not by M-CSF. However, IL-12 expression was not regulated in any of the treated cells, and IL-1β was decreased in all tissues. These results indicate that IL-34 and M-CSF have roles in both the classical and alternative macrophage activation pathways. Collectively, our findings demonstrate the expression of IL-34 in chickens for pathogenic trials, both in vitro and in vivo. Our results suggest that the IL-34 protein plays a role in both proand anti-inflammatory functions in macrophages. Therefore, further research is needed to determine the cytokines or chemokines that can be induced by IL-34 and to further elucidate the functions of IL-34 in the inflammatory pathway. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"83 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90496405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of Particulate Matter and Ammonia Emission in Different Types of Laying Hen Poultry Houses during Spring 春季不同类型蛋鸡舍颗粒物和氨排放比较

Korean Journal of Poultry Science Pub Date : 2021-09-01 DOI: 10.5536/kjps.2021.48.3.151

E. Hong, B. Kang, H. Kang, Jin-Joo Jeon, A. You, Hyunsoo Kim, Jiseon Son, Hee-jin Kim, Yeon-Seo Yun

{"title":"Comparison of Particulate Matter and Ammonia Emission in Different Types\u0000 of Laying Hen Poultry Houses during Spring","authors":"E. Hong, B. Kang, H. Kang, Jin-Joo Jeon, A. You, Hyunsoo Kim, Jiseon Son, Hee-jin Kim, Yeon-Seo Yun","doi":"10.5536/kjps.2021.48.3.151","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.3.151","url":null,"abstract":"This study was conducted to determine the concentrations of particulate matter (PM) and NH3 emissions from different types of laying hens poultry houses during spring. The concentrations of PM and NH3 were measured three times (2-week intervals; March to May) in Floor-pen-, Aviary-, and Cage-type poultry houses. Overall, PM10 and PM2.5 concentrations were found to be low from 22:00 to 04:00. The PM10 and PM2.5 concentrations in Floor-pen and Cage houses were similar with no significant daily deviation. NH3 concentrations measured over 24 h at the center and end of Floor-pen house were relatively constant. Irrespective of measurement location, NH3 concentrations were the lowest in Floor-pen house. Moreover, NH3 concentrations were higher at the end of Floor-pen and Aviary houses than that at the center; however, lower concentrations of NH3 were detected at the end of Cage house. The concentrations of PM10 and PM2.5 around the poultry houses were 57.5 and 34.0 μg/m, respectively, with the daily average PM10 and PM2.5 concentrations (4,730 and 447.7 μg/m, respective) being the highest in Aviary house. The concentrations of NH3 at the center and end of Cage house were the highest at 12.0 and 9.31 ppm, respectively. Furthermore, in Cage house, the emission factor of NH3 was the lowest, whereas there was no significant difference on that of NH3. In conclusion, among the three types of poultry houses assessed, PM (PM10, PM2.5) concentrations were higher in Aviary house, whereas NH3 concentrations were higher in Cage house. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79863888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Feeding Enzyme-Hydrolyzed Poultry By-Product Meal on Productivity and Blood Biochemical Characteristics in Broilers 饲用酶水解禽副产物粕对肉鸡生产能力和血液生化特性的影响

Korean Journal of Poultry Science Pub Date : 2021-09-01 DOI: 10.5536/kjps.2021.48.3.133

Min-Geun Gwak, Hye-Sung Park, Bong-Ki Kim, Hee-Bok Park, Ji-Hyuk Kim

{"title":"Effects of Feeding Enzyme-Hydrolyzed Poultry By-Product Meal on\u0000 Productivity and Blood Biochemical Characteristics in Broilers","authors":"Min-Geun Gwak, Hye-Sung Park, Bong-Ki Kim, Hee-Bok Park, Ji-Hyuk Kim","doi":"10.5536/kjps.2021.48.3.133","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.3.133","url":null,"abstract":"The purpose of this study was to investigate whether enzyme-hydrolyzed poultry by-product meal (EHPBM) is more effective as a protein source than poultry by-product meal (PBM) and soybean meal (SBM) for broiler chickens. A group of 300 one-day-old broiler chicks was randomly allocated to three treatments with five replicates (20 birds/replicate) for five weeks. The treatments consisted of basal diets containing 1) SBM, 2) PBM, and 3) EHPBM. The EHPBM-fed group (1,853 g±125.60) showed the highest final body weight (P<0.05) when compared to the PBM-fed group (1,723 g±76.81) and SBM-fed group (1,545 g±62.31). The feed conversion ratio of the EHPBM treatment group (1.740±0.104) was significantly higher (P<0.05) than those of the SBM (1.653±0.056) and PBM groups (1.674±0.072). It can be speculated that the increased feed intake in the EHPBM group led to higher body weight gain and FCR. There was no significant effect of treatments on internal organ weight except for the bursa of Fabricius. Blood biochemical characteristic analysis showed that aspartate aminotransferase and alkaline phosphatase levels were higher in the EHPBM and PBM groups (P<0.05), probably due to the strained liver caused by the rapid growth of birds. In conclusion, EHPBM may partly replace conventional dietary protein sources such as soybean meal or poultry by-product meal and can be used to improve the productivity of broilers. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89817138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of Separate-Sex and Straight-Run Rearing on the Productivity of Korean Native Chickens 雌雄分种和直交种饲养对韩国土鸡生产能力的影响

Korean Journal of Poultry Science Pub Date : 2021-09-01 DOI: 10.5536/kjps.2021.48.3.123

S. Sohn, E. Choi, E. Cho, Bo Gyeong Kim, Kajita Shin, S. Lee, Seung Hak Lee

{"title":"Effect of Separate-Sex and Straight-Run Rearing on the Productivity\u0000 of Korean Native Chickens","authors":"S. Sohn, E. Choi, E. Cho, Bo Gyeong Kim, Kajita Shin, S. Lee, Seung Hak Lee","doi":"10.5536/kjps.2021.48.3.123","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.3.123","url":null,"abstract":"In this study, we investigated the effect of separate-sex and straight-run rearing system on the productivity of Korean native chickens. A total of 1,140 GSP-Hanhyup Korean native chickens were divided into male, female, and straight-run rearing groups, and the survival rate, body weight, feed intake, and feed conversion ratio were investigated from birth to 12 weeks of age. The average survival rate was 97.9%, and there were no significant differences among the groups. Body weight was significantly different among the groups at all weeks of age (P<0.01). After 4 weeks of age, the male group had the highest weight, followed by the straight-run group, and finally the female group. At 10 weeks, the most uniform body weight was shown in the female group (78%), while the lowest was in straight-run group (44%). Comparing the separate-sex and straight-run groups, male chickens were found to have higher body weights in the separate rearing group than in the straight-run group; however, there was little difference in those of female chickens. Feed intake was the highest in the male group, followed by the straight-run group, and lastly, the female group, while the feed conversion ratio had an opposite trend. Although there is little difference in the production performance of chickens between separate-sex rearing and straight-run rearing system, we concluded that the separate-sex rearing system is much more advantageous than the straight-run rearing system in terms of productivity due to group uniformity. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74740035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Crossbreeding Combination Test for the Production of New Synthetic Korean Native Commercial Chickens 新型合成韩国地方商品鸡的杂交组合试验

Korean Journal of Poultry Science Pub Date : 2021-09-01 DOI: 10.5536/kjps.2021.48.3.101

S. Sohn, E. Choi, E. Cho, Bo Gyeong Kim, Kajita Shin, S. Lee, Ki Suk Oh

{"title":"Crossbreeding Combination Test for the Production of New Synthetic\u0000 Korean Native Commercial Chickens","authors":"S. Sohn, E. Choi, E. Cho, Bo Gyeong Kim, Kajita Shin, S. Lee, Ki Suk Oh","doi":"10.5536/kjps.2021.48.3.101","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.3.101","url":null,"abstract":"In this study, we performed a cross-combination test using offspring from two paternal and five maternal parent stock lines to produce a new synthetic breed of Korean native commercial chickens. The survival rate, body weight, feed intake, and feed efficiency were measured for 10 crosses, with 837 Hanhyup-3 chickens used as a control. Most chickens had brown-based feathers, and there was little difference in color phenotypes among combinations. The average survival rate of the combinations was 94.9%, which was significantly different from that of Hanhyup-3 at 75.3% (P<0.01). There was significant differences in body weight among the combinations at all weeks of age (P<0.01). At 10 weeks of age, the FHHY combination was the heaviest with 2,300 g, while the weight of Hanhyup-3 was 1,922 g. In addition, the weight difference between the male and female chickens was 458 g. As a result of regression analysis, the duration needed to reach 1.9 kg was about 61 days for the FHFY, FHHY, and HFFY combinations, and 70 days for Hanhyup-3, exhibiting a 9-day difference. The average feed conversion ratio of the combinations until 10 weeks was 2.42, which was significantly different from that of Hanhyup-3 at 2.97 (P<0.01). In conclusion, FHHY, FHFY, and HFFY were determined to be the best new breed combinations based on production capacity. When these combinations are used as new commercial breeds, they are expected to increase the average weight by 18% and improve feed efficiency by 19%, as compared to the existing Hanhyup-3 breed. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90394116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Effects of Breed, Laying Age, and Egg Storage Period on the Vitality of Hatched Chicks in Korean Native Chickens 品种、产蛋年龄和鸡蛋贮藏期对韩国土鸡孵化雏鸡活力的影响

Korean Journal of Poultry Science Pub Date : 2021-03-01 DOI: 10.5536/KJPS.2021.48.1.1

E. Choi, S. Sohn

{"title":"Effects of Breed, Laying Age, and Egg Storage Period on the\u0000 Vitality of Hatched Chicks in Korean Native Chickens","authors":"E. Choi, S. Sohn","doi":"10.5536/KJPS.2021.48.1.1","DOIUrl":"https://doi.org/10.5536/KJPS.2021.48.1.1","url":null,"abstract":"We investigated the effects of breed, laying age, and egg storage period on the vitality of chicks using the Hwanggalsaek Jaeraejong, Korean Rhode Island Red, and Korean White Leghorn chicken breeds. Their eggs were collected during the early laying period (27 ∼ 29 weeks) and late laying period (50 ∼ 52 weeks) and were stored for 3 days, 7 days and 14 days. After the eggs hatched, the hatching time, production performance, and organ weight of chicks were investigated. IL-6 gene expression level and relative length of telomeres were analyzed to determine the physiological activity of the chicks. HSP gene expression level and heterophil to lymphocytes ratio were also analyzed to examine the degree of stress response in the chicks. The results showed that breed and laying age influenced the vitality of chicks, but the egg storage period did not. Korean Leghorn chicks were considered the weakest breed in terms of vitality owing to their low survival rate, small heart size, low physiological activity, and high stress response level. Although the survival rate of chicks produced in the early laying period was low, their high physiological activity and low stress response indicated that they had a high vitality than the chicks produced in the late laying period. In conclusion, to obtain chicks with high vitality, it would be desirable to select a high vitality breed and avoid the use of chicks produced in the late laying period.","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"114 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87991959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Stock Density and Nutrient Levels on Growth Performance, Serum Profile, Immune Status and Meat Quality in Korean Native Chickens 饲养密度和营养水平对韩国土鸡生长性能、血清特征、免疫状态和肉品质的影响

Korean Journal of Poultry Science Pub Date : 2021-01-01 DOI: 10.5536/kjps.2021.48.2.91

KwangYeol Kim, Jin-Joo Jeon, Hyunsoo Kim, Jiseon Son, Hee-jin Kim, A. You, E. Hong, B. Kang, H. Kang

{"title":"Effects of Stock Density and Nutrient Levels on Growth Performance,\u0000 Serum Profile, Immune Status and Meat Quality in Korean Native\u0000 Chickens","authors":"KwangYeol Kim, Jin-Joo Jeon, Hyunsoo Kim, Jiseon Son, Hee-jin Kim, A. You, E. Hong, B. Kang, H. Kang","doi":"10.5536/kjps.2021.48.2.91","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.2.91","url":null,"abstract":"The study determined the effects of stock density (SD) and energy level (EL) on growth performance, serum biochemistry, and meat quality in Korean native chickens. A total of 240 chickens were randomly assigned to one of the four treatments including two stock density (low, 14, and high, 16 chickens per m) and two energy level (low, 2,950, 3,000, 3050 ME kcal/kg, and high 3,150, 3,200, 3,250 ME kcal/kg, for starter, grower, and finisher, respectively). During the whole period of the experiment, the chickens were fed ad libitum. The greater final body weight and weight gain were achieved in chickens fed high energy diet, whereas the final body weight and weight gain were significantly reduced in high-density treatment compared with the low density. Chickens in low-density groups had a higher feed intake compared with high-density treatment, however, the energy level did not affect the feed intake. An improved overall feed conversion ratio was detected in the high energy treatment. There was a significant interaction between stock density and energy level on cholesterol concentration. The concentration of aspartate transaminase in serum was increased by higher stock density. There was a significant treatment interaction on IgM levels. Moreover, the carcass rate was significantly increased in the high energy level treatment. Based on the findings, we suggest that rearing chickens in low density with high dietary energy levels could be beneficial by improving the growth performance. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73310033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of a New Synthetic Korean Native Chicken Breed using the Diallel Cross-Mating Test 利用双列杂交试验开发一种新的韩国地方鸡

Korean Journal of Poultry Science Pub Date : 2021-01-01 DOI: 10.5536/kjps.2021.48.2.69

S. Sohn, E. Choi, K. Kim, Byeongho Park, H. Choo, J. Heo, Ki Suk Oh

{"title":"Development of a New Synthetic Korean Native Chicken Breed using\u0000 the Diallel Cross-Mating Test","authors":"S. Sohn, E. Choi, K. Kim, Byeongho Park, H. Choo, J. Heo, Ki Suk Oh","doi":"10.5536/kjps.2021.48.2.69","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.2.69","url":null,"abstract":"We conducted a 4 × 4 diallel cross-mating test using 934 chickens from four grandparent stock lines to develop a new synthetic breed of Korean native chicken. The mean values, combining ability, and reciprocal effects on survival rate, body weight, and hen-day egg production were analyzed. In phenotypes, most chickens have yellowish-brown, reddish-brown and mixed color feathers. The average survival rate was 86.8±12.3%, with the highest in YH combination. Specific combining ability (SCA) had a greater effect on survival rate than general combining ability (GCA), and the SCA of HY combination was the highest. The 16 cross-combinations were distinctly divided into three weight groups according to their genetic characteristics. At 12 weeks of age, GCA showed a greater effect on weight than SCA, and the SCA of FH combination was the highest. The age at first egg laying was 157 days, and the crosses reached sexual maturity faster than the pure lines. The egg production rate was highest in SY at 79.5±2.1%. The GCA and SCA for hen-day egg production were similar, and the SCA was highest in the HS and FY combinations. The reciprocal effect showed that the offspring’s egg production rate was high when S and Y were maternal parents in almost all combinations. In conclusion, FH and HF combinations, which have excellent growth performance, are the most desirable paternal parent stock strains, and FY, FS, HY, and SY combinations, which have excellent laying performance with moderate weight, are the preferred maternal strains. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88310902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Determination of the Effect of Feeding Different Sodium Chloride Regimes on Growth Performance, Viscera Organ Weights and Meat Quality Parameters of Broilers from Hatch to 35 Days of Age 不同氯化钠饲喂方式对孵化~ 35日龄肉仔鸡生长性能、脏器重量和肉品质参数的影响

Korean Journal of Poultry Science Pub Date : 2020-06-01 DOI: 10.5536/kjps.2020.47.2.75

Geerththana Vinothsankar, S. P. Macelline, S. Wickramasuriya, Shan Randima Nawarathna, L. Ang, Himali Tharangani, D. Jayasena, J. Heo

{"title":"Determination of the Effect of Feeding Different Sodium Chloride\u0000 Regimes on Growth Performance, Viscera Organ Weights and Meat Quality Parameters\u0000 of Broilers from Hatch to 35 Days of Age","authors":"Geerththana Vinothsankar, S. P. Macelline, S. Wickramasuriya, Shan Randima Nawarathna, L. Ang, Himali Tharangani, D. Jayasena, J. Heo","doi":"10.5536/kjps.2020.47.2.75","DOIUrl":"https://doi.org/10.5536/kjps.2020.47.2.75","url":null,"abstract":"This study intended to investigate the growth performance and meat quality traits in broilers fed different regimens of NaCl over a period of 35 days. Seven hundred and fifty 1-day-old chicks (Cobb 500) were randomly assigned to five NaCl feeding regimens to obtain three replicates for each regimen. Broilers in CON group were provided with concentrations of 0.35% NaCl for the duration of the experimental period. The other groups were provided with two concentrations of NaCl (0.45% and 0.55%) under two durations, namely: 1) 1∼28 d: 0.45% or 0.55% NaCl for 28 days then CON; and 2) 1∼35 d: 0.45% or 0.55% NaCl for 35 days. Broilers fed 0.55% NaCl for 1∼35 d showed improved (P<0.05) growth performance compared with broilers fed the CON regimen. Moreover, higher water holding capacity of breast meat was shown by the broilers fed 0.55% NaCl for 1∼28 d when compared with that in broilers fed the CON diet (P<0.05). Broilers fed 0.45% NaCl showed an increase (P<0.05) in the lightness of the meat over CON diet and the 0.55% NaCl diet. In addition, broilers offered CON had the highest redness value and highest crude ash content in the breast meat (P<0.05). Feeding 0.45% NaCl for 1∼35 d and 0.55% NaCl for 1∼28 d resulted in a higher (P<0.05) protein content in breast meat. In conclusion, broilers fed diets with 0.55% NaCl for 1∼35 d showed improved growth performance as well as water holding capacity and protein content of the breast meat. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79431480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multilocus Sequence Typing of Pasteurella multocida Isolates from Acute Fowl Cholera Outbreak in Layer 蛋鸡急性霍乱暴发多杀性巴氏杆菌分离株的多位点序列分型

Korean Journal of Poultry Science Pub Date : 2020-06-01 DOI: 10.5536/kjps.2020.47.2.115

Van Dam Lai, Jong-Seung Kim, I. Mo

引用次数: 0