Korean Journal of Poultry Science最新文献_第5页

Effect of Perch Type and Height on the Growth Performance, Behavioral Characteristics, and Meat Quality of Broilers 鲈鱼种类和高度对肉仔鸡生长性能、行为特性和肉品质的影响

Korean Journal of Poultry Science Pub Date : 2021-12-01 DOI: 10.5536/kjps.2021.48.4.227

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

{"title":"Effect of Perch Type and Height on the Growth Performance,\u0000 Behavioral Characteristics, and Meat Quality of Broilers","authors":"Hyunsoo Kim, Hee-jin Kim, Jin-Joo Jeon, Jiseon Son, A. You, B. Kang, E. Hong, H. Kang","doi":"10.5536/kjps.2021.48.4.227","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.4.227","url":null,"abstract":"This study investigates the effect of perch type and height on the growth performance, footpad dermatitis (FPD), blood parameters, behavioral characteristics, and meat quality of broilers. A total of 912 one-day-old male Ross 308 broilers (48.23± 0.264 g) were subjected to a three x two factorial design of three types of perch (wood, steel, plastic) and two levels of perch height (10→30 cm change, 10 cm fixed) over a five-week experiment. Growth performance, perch availability, litter quality, FPD incidence, serum biochemical parameters, and meat quality of the broilers were evaluated. There were no significant differences in the body weight, feed conversion ratio, and biochemical parameters (except for aspartate aminotransferase), pH, color, and water holding capacity. The incidence of FPD was significantly higher in the plastic perch group than in the wood and steel perch groups (P<0.05) at five weeks of age. Perch use was high in the order of wood, steel, and plastic groups in the daytime and nighttime at one, three, and five weeks of age (P<0.05). Perch use was higher in the 10 cm fixed group than the 10→30 cm group (P<0.05). The shear force of the breast significantly increased in the order of wood, steel, and plastic groups (P<0.05). In conclusion, the group with a fixed perch height of 10 cm had high perch usage. Additionally, the use of wooden perches was higher than that of other materials, and it lowered the incidence of FPD in broilers. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77270695","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 Dietary supplementation of Ginseng By-Products on Growth Performance, Organ Weight and Blood Biochemical Characteristics in Broiler 饲粮中添加人参副产物对肉鸡生长性能、器官重量和血液生化特性的影响

Korean Journal of Poultry Science Pub Date : 2021-12-01 DOI: 10.5536/kjps.2021.48.4.267

Jun-Ho Lee, Hye-Sung Park, Junchao Song, Bong-Ki Kim, Hee-Bok Park, Ji-Hyuk Kim

{"title":"Effects of Dietary supplementation of Ginseng By-Products on Growth\u0000 Performance, Organ Weight and Blood Biochemical Characteristics in\u0000 Broiler","authors":"Jun-Ho Lee, Hye-Sung Park, Junchao Song, Bong-Ki Kim, Hee-Bok Park, Ji-Hyuk Kim","doi":"10.5536/kjps.2021.48.4.267","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.4.267","url":null,"abstract":"The aim of this study was to analyze the effect of dietary supplementation with ginseng berry, stems, and leaves on the growth performance, organ development, and blood biochemical characteristics of broilers. One hundred twenty one-day-old male broiler chicks (Ross 308) were randomly allocated to five groups: control (CON), ginseng berry 0.5% (GB1), ginseng berry 1.0% (GB2), ginseng stems and leaves 0.5% (GLS1), and ginseng stems and leaves 1.0% (GLS2). During the grower period (1–21 d), the body weight gain of all ginseng by-product fed groups was significantly higher (p<0.05) than that of the control group. During the finisher period (22–35 d), the feed intake in GLS2 was significantly higher (p<0.05) than that in the other groups, but there was no significant difference in weight gain or feed conversion ratio. No significant differences were detected among treatments when the growth performance was analyzed throughout the entire period (1–35 d). There was no significant difference in the serum biochemical profile, except for blood glucose. Glucose levels were significantly lower (p<0.05) in GLS groups, and tended to be lower in GB groups when compared to the control. Major organ weights showed no significant differences among treatment groups when compared to each other. In conclusion, dietary supplementation of ginseng by-products may improve the early growth of broiler chickens and reduce blood glucose levels. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79002687","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 Early- and Late-Feathering Phenotypes on Growth Performance and Mortality in Korean Native Commercial Chickens 早、晚羽毛表型对韩国地方商品鸡生长性能和死亡率的影响

Korean Journal of Poultry Science Pub Date : 2021-12-01 DOI: 10.5536/kjps.2021.48.4.177

S. Sohn, E. Choi, E. Cho, Bo Gyeong Kim

{"title":"Effects of Early- and Late-Feathering Phenotypes on Growth\u0000 Performance and Mortality in Korean Native Commercial Chickens","authors":"S. Sohn, E. Choi, E. Cho, Bo Gyeong Kim","doi":"10.5536/kjps.2021.48.4.177","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.4.177","url":null,"abstract":"Sex identification in day-old chicks is essential in the poultry industry. Currently, the feather-sexing using a sex-linked inheritance is a chick sexing method used extensively in the poultry industry. For chicks produced by feather-sexing, all females are early-feathering (EF) chicks and all males are late-feathering (LF) chicks. Therefore, investigating the effects of EF and LF phenotypes on production traits of chickens is critical. The purpose of this study was to analyze and compare the production performance between EF and LF chickens in Korean native commercial chickens. The results showed that the survival rate of the EF chickens was significantly higher than that of the LF chickens, from hatching to 12 weeks of age (P<0.05), with the highest difference observed in females. However, no significant difference was observed in body weight between the EF and LF chickens at almost all ages. In addition, no significant difference was observed between in feed utility, such as average daily feed intake and feed conversion ratio, between the EF and LF groups. In conclusion, although the survival rate of early-feathering chickens was superior to that of late-feathering chickens, no significant difference was observed in growth performance and feed utility among Korean native chickens. The results suggest that production capacity is not influenced by feathering type in the establishment of a breeder structure and production system for feather-sexing Korean native chickens, which is valuable for the practical application of feather-sexing in the poultry industry. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85741873","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

Poultry Coccidiosis-A Concurrent Overview on Etiology, Diagnostic Practices, and Preventive Measures 家禽球虫病——病原学、诊断实践和预防措施综述

Korean Journal of Poultry Science Pub Date : 2021-12-01 DOI: 10.5536/kjps.2021.48.4.297

S. R. Nawarathne, M. Yu, J. Heo

{"title":"Poultry Coccidiosis-A Concurrent Overview on Etiology, Diagnostic\u0000 Practices, and Preventive Measures","authors":"S. R. Nawarathne, M. Yu, J. Heo","doi":"10.5536/kjps.2021.48.4.297","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.4.297","url":null,"abstract":"Coccidiosis is a major parasitic disease in the poultry industry, with great economic implications worldwide. It is a ubiquitous protozoan infection caused by several species of the genus Eimeria (host-specific) that colonize and reproduce in the intestine of birds, ultimately altering the health and performance of the flock. At present, several methods are used to diagnose coccidiosis in poultry, including field and laboratory techniques (intestinal lesion scoring, oocyst counting in feces, and biochemical and molecular diagnosis). Traditionally, diagnosed flocks have been treated either by vaccination to improve the active immunity of the birds against coccidiosis or supplementation of prophylactic anticoccidials to ameliorate the deleterious effects of coccidiosis. However, these methods has certain drawbacks such as vaccine-induced coccidiosis, drug resistance, and residual drug accumulation in the host. Consequently, alternative safe anti-coccidial agents, including the use of phytogenic compounds, have been explored for preventing coccidiosis. Here, we provide a simple overview of the literature on poultry coccidiosis by focusing on the etiology, diagnostic practices, and preventive measures. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81982584","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

A Comparative Study on the Growth Performance of Korean Indigenous Chicken Pure Line by Sex and Twelve Strains 韩国地方鸡纯系与12个品系生长性能的比较研究

Korean Journal of Poultry Science Pub Date : 2021-12-01 DOI: 10.5536/kjps.2021.48.4.193

Kigon Kim, ByoungHoon Park, Iksoo Jeon, H. Choo, Jinjoo Ham, Keon-Ho Park, Jaebeom Cha

{"title":"A Comparative Study on the Growth Performance of Korean Indigenous\u0000 Chicken Pure Line by Sex and Twelve Strains","authors":"Kigon Kim, ByoungHoon Park, Iksoo Jeon, H. Choo, Jinjoo Ham, Keon-Ho Park, Jaebeom Cha","doi":"10.5536/kjps.2021.48.4.193","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.4.193","url":null,"abstract":"This study aimed to identify the growth performance of Korean indigenous chicken pure-line by sex and twelve strains conserved in Poultry Research Institute, National Institute of Animal Science, Rural Development Administration. The effect of sex and strain on body weight was significantly different in every period, with males being heavier in all periods than females. In the case of biweekly weight gain, the tendency to increase rapidly from birth to six weeks old, and to decrease in the period from twelve to fourteen weeks old was common across all sex and strains. Depending on sex and strain, there were significant differences in age and the number of peaks. Regardless of sex and strain, the determination coefficient and adjusted determination coefficient showed high goodness of fit (99.1∼99.9%) to growth functions. However, for each model, the goodness-of-fit had variations by sex and strains. von Betalanffy function had the best fit to growth curves in all the female strains except strain D. On the other hand, Gompertz function had the best fit for all the male strains except strain C. Logistic function showed the lowest goodness-of-fit in all sex and strains. Mature weights were in the order of von bertalanffy, Gompertz, and Logistic models, while growth ratio and maturing rate followed the order of logistic, gompertz, and von bertalanffy functions. This information could be useful for Korean indigenous chicken management and designing crossbreeding tests and breeding programs. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"156 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77128292","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: 1

EFfect of Feed Withdrawal Time on Salmonella Contamination in the Crop, Intestinal Weight, and Blood Parameters of Broilers before Harvesting 采前停饲时间对作物沙门氏菌污染、肉仔鸡肠道重量和血液参数的影响

Korean Journal of Poultry Science Pub Date : 2021-12-01 DOI: 10.5536/kjps.2021.48.4.287

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

{"title":"EFfect of Feed Withdrawal Time on Salmonella\u0000 Contamination in the Crop, Intestinal Weight, and Blood Parameters of\u0000 Broilers before Harvesting","authors":"Hee-jin Kim, H. Kang, E. Hong, Hyunsoo Kim, Jiseon Son, A. You, B. Kang, Jin-Joo Jeon","doi":"10.5536/kjps.2021.48.4.287","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.4.287","url":null,"abstract":"In this study, we aimed to evaluate the impact of different feed withdrawal periods (2, 3, 4, 5, and 6 h) on Salmonella contamination in the crop, intestinal weight, and blood parameters of broilers before harvesting. A total of 100 broilers (initial live weight 1.906±0.06 kg) were randomly assigned to the same five treatment groups and broilers had access to water but no feed before catching. Feed withdrawal times were 2, 3, 4, 5, and 6 h prior to slaughter. Measurements included live weight, pre-slaughter weight, carcass weight, weight of gastrointestinal tract. In addition, Salmonella and Campylobacter contamination in the crop, serum biochemical profiles, counts of leukocytes, erythrocytes, and platelets, and meat quality were assessed. The results demonstrate that carcass weight, blood corticosterone, meat pH, meat color, and water holding capacity did not differ based on the feed withdrawal time. Carcass yield increased as the withdrawal time increased, but the weights of the crop, proventriculus, jejunum, ileum, and rectum were significantly reduced by 6 h (P<0.05). Salmonella counts were the lowest in the crops subjected to 6 h of feed withdrawal (P<0.05). Shear force was highest in chicken breast meat after 6 h of feed withdrawal (P<0.05). However, when the feed was withdrawn after 6 h, the shear force increased, but it did not affect the sensory characteristics in consumers, and the Salmonella count also decreased and had a reduction effect on contamination during slaughter. These findings can serve as reference data for setting the feed withdrawal time. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74540763","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

Serum Resistance in Riemerella anatipestifer is Associated with Systemic Disease in Ducks 鸭疫里默氏菌血清耐药性与鸭子全身性疾病有关

Korean Journal of Poultry Science Pub Date : 2021-12-01 DOI: 10.5536/kjps.2021.48.4.327

B. Wei, Hye-Suk Seo, K. Shang, Jun-feng Zhang, Jong-Yeol Park, Yea-Jin Lee, Yu-ri Choi, Sang-Won Kim, S. Cha, H. Jang, Min Kang

{"title":"Serum Resistance in Riemerella anatipestifer is\u0000 Associated with Systemic Disease in Ducks","authors":"B. Wei, Hye-Suk Seo, K. Shang, Jun-feng Zhang, Jong-Yeol Park, Yea-Jin Lee, Yu-ri Choi, Sang-Won Kim, S. Cha, H. Jang, Min Kang","doi":"10.5536/kjps.2021.48.4.327","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.4.327","url":null,"abstract":"Riemerella anatipestifer (RA) can cause septicemia, polyserositis, and ataxia in ducks. It can also colonize the upper respiratory tract of healthy ducks. These differences in pathogenicity are probably the result of diverse mechanisms of virulence in different strains. Since serum resistance is a feature frequently found in systemic pathogens, 130 RA strains having different clinical origins were tested. A variety of serum susceptibility levels were detected. Pharynx strains from healthy ducks were mainly susceptible to the bactericidal effect of the serum, while systemic strains were serum resistant. Heat-treatment of the sera abolished the bactericidal activity, indicating that complement is a key factor in this effect. In an attempt to associate serum-resistance to surface determinant genes of the bacteria, we screened for six genes involved in lipopolysaccharide synthesis and membrane proteins in RA. Of these, three genes (AS87_09335, AS87_00480, and AS87_05195) encoding outer membrane proteins might be implicated in serum resistance statistically. The results indicate that serum resistance is a virulence mechanism in RA. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90571399","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: 1

Effects of Different Levels of Dietary Energy and Nutrient Density during the Pre-Peak and Peak Periods on Egg Quality in Hy-Line Brown Laying Hens 峰前和峰前不同水平饲粮能量和营养密度对海兰褐蛋鸡蛋品质的影响

Korean Journal of Poultry Science Pub Date : 2021-12-01 DOI: 10.5536/kjps.2021.48.4.319

S. S. Kumar, V. Sampath, J. Park, I. Kim

{"title":"Effects of Different Levels of Dietary Energy and Nutrient Density\u0000 during the Pre-Peak and Peak Periods on Egg Quality in Hy-Line Brown Laying\u0000 Hens","authors":"S. S. Kumar, V. Sampath, J. Park, I. Kim","doi":"10.5536/kjps.2021.48.4.319","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.4.319","url":null,"abstract":"In this study, we investigated the effects of feeding diets with different levels of energy and nutrient density on the egg quality of laying hens during the pre-peak and peak periods. A total of 192 (Hy-line brown) laying hens were used in a 15-week trial. The hens were randomly allotted to one of four treatments, each with four replicates (12 hens per replication). We assessed the effects of four level of dietary energy (2,710, 2,850, 2,870 and 2,890 kcal/kg) and three levels of nutrient density (Methionine + Cysteine: 0.56%, 0.85%, 0.80% and Crude Protein: 14.5%, 19%, 18%). Differences in the energy and nutrient density contents of diets showed no significant effect (P>0.05) on the average daily gain, average daily feed intake, feed conversion ratio, egg weight, or egg production of hens during the pre-peak and peak periods. However, hens subjected to 2,890 kcal/kg during the pre-peak period were found to lay eggs with significantly thicker shells, and yolk color was found to be significant enhanced in hens fed this diet during the pre-and peak periods. In contrast, we detected no significant effects of dietary energy or nutrient density on the Haugh unit or eggshell strength. In summary, increasing the energy level of diets from 2,710 to 2,890 kcal/kg was found to have positive effects on the shell thickness and yolk color of eggs produced by laying hens. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91046647","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 the Raising Period on Meat Quality in Two New Strains of Korean Native Chicken 饲养期对两种韩国土鸡新品种肉质的影响

Korean Journal of Poultry Science Pub Date : 2021-12-01 DOI: 10.5536/kjps.2021.48.4.207

Seong-Yun Lee, Ji-young Park, Samooel Jung, J. Jung, K. Nam

{"title":"Effects of the Raising Period on Meat Quality in Two New Strains of\u0000 Korean Native Chicken","authors":"Seong-Yun Lee, Ji-young Park, Samooel Jung, J. Jung, K. Nam","doi":"10.5536/kjps.2021.48.4.207","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.4.207","url":null,"abstract":"This study was conducted to determine the nutritional quality of two newly-developed native chicken strains, compared to the commercial Korean native chicken. A total of 600 chickens (CON: Hanhyup No. 3, CL1: candidate line C, CL2: candidate line D) raised under the same conditions were slaughtered at either 5 or 12 weeks. Leg meat was then obtained and analyzed for its physicochemical properties. The results showed that regardless of the growing period, there was no variation in proximate composition (P>0.05), except for crude protein, between strains. Water holding capacity did not differ between strains at either slaughter age; however, it was significantly lower in the 12-week group than in the 5-week group (P≤0.05). For both skin and muscle color, a* and b* values were lower at 12 weeks than at 5 weeks (P≤0.05). DPPH radical-scavenging activity tended to be lower at 12 weeks than at 5 weeks (P≤0.05). Furthermore, all chickens slaughtered at 5 weeks were found to have greater contents of linoleic acid (18:2) and polyunsaturated fatty acids (PUFA) and lower atherogenicity and thrombogenicity indices than those slaughtered at 12 weeks (P≤0.05). However, anserine, betaine, and glucose were more concentrated among the lines at 12 weeks than at 5 weeks (P≤0.05). In conclusion, the quality traits of native chickens were distinct by different production stages rather than chicken lines. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"98 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82336163","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: 1

Effects of Light Intensity on the Growth Performance, Blood Parameter and Immune Status of Broiler Chicks 光照强度对肉仔鸡生长性能、血液参数和免疫状态的影响

Korean Journal of Poultry Science Pub Date : 2021-09-01 DOI: 10.5536/kjps.2021.48.3.143

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

{"title":"Effects of Light Intensity on the Growth Performance, Blood\u0000 Parameter and Immune Status of Broiler Chicks","authors":"Hee-jin Kim, Jiseon Son, Jin-Joo Jeon, Hyunsoo Kim, A. You, H. Kang, B. Kang, E. Hong","doi":"10.5536/kjps.2021.48.3.143","DOIUrl":"https://doi.org/10.5536/kjps.2021.48.3.143","url":null,"abstract":"In this study, we investigated the effects of light intensity on broiler chick growth performance, blood parameters, and stress levels. A total of 240 one-day-old male Ross 308 broilers (47.97±0.166 g) were subjected to three different intensities of light (20, 30, and 50 lx), with each treatment being conducted with four replicates. On the seventh day, the growth performance (body weight, feed conversion ratio, and breast muscle and liver weights) and blood parameters were determined; the levels of serum corticosterone, interleukin-6 (IL-6), and tumor necrosis factor-α were also evaluated. The body weight, weight gain, liver weight, and breast muscle weight of chicks exposed to a light intensity of 50 lx were significantly increased compared with those of chicks subjected to 20 lx (P<0.05). No significant differences were observed in the leukocyte, erythrocyte, and platelet counts and the biochemical profile exceptions being the levels of glucose and inorganic phosphorus in the blood of the chicks in the three light intensity groups. However, serum corticosterone and IL-6 levels were the highest in chicks exposed to a light intensity of 20 lx (P<0.05). In conclusion, the findings of this study indicate that broiler chicks exposed to higher light intensity (50 lx) show significant improvements in terms of weight gain and corticosterone and IL-6 levels. Thus, high light intensities enhanced the growth performance, stress levels, and immune status of broiler chicks. (","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82365496","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