Korean Journal of Poultry Science最新文献

Evaluation of Abeliophyllum distichum Nakai Extract in Litter Quality and Footpad Dermatitis in Broiler Litter 白叶参提取物对肉鸡产仔质量及脚垫皮炎的影响

Korean Journal of Poultry Science Pub Date : 2024-12-01 DOI: 10.5536/kjps.2024.51.4.179

Sehyun Park, Jihwan Lee, Se Yeon Chang, Dongcheol Song, Kyeongho Jeon, Hyuck Kim, Jinmo Yang, Jin Ho Cho

{"title":"Evaluation of Abeliophyllum distichum Nakai Extract in Litter Quality and Footpad Dermatitis in Broiler Litter","authors":"Sehyun Park, Jihwan Lee, Se Yeon Chang, Dongcheol Song, Kyeongho Jeon, Hyuck Kim, Jinmo Yang, Jin Ho Cho","doi":"10.5536/kjps.2024.51.4.179","DOIUrl":"https://doi.org/10.5536/kjps.2024.51.4.179","url":null,"abstract":"The objective of this study was to investigate the effects of Abeliophyllum distichum Nakai (AN) extract in litter moisture, ammonia nitrogen (NH3-N), pH, microflora, and FPD. A total of 180 one-day-old Arbor Acres (initial body weight of 37.51±0.17 g) were used for 28 d. Treatments were as follows: basal rice husk + 10 mL tap water (AN0), basal rice husk + 2% AN extract soluble (AN2; 0.2 g/mL), basal rice husk + 4% AN extract soluble (AN4; 0.4 g/mL). Each treatment had five replicates, with twelve birds per pen. At 0 to 2 weeks, the AN0 and AN2 significantly increased the feed intake (FI) compared with the AN4. There was no significant difference (P>0.05) in litter moisture during the experiment period. However, at week 4, the AN0 significantly increased (P<0.05) litter pH compared with the AN2 and AN4. At 3 and 4 weeks, the counts of Salmonella in the litter were significantly higher (P<0.05) in the AN0 compared with the AN2 and AN4. Also, the AN4 showed significantly lower (P<0.05) counts of Salmonella compared with the AN0 and AN4. Moreover, at 4 weeks, the AN0 showed significantly higher (P<0.05) counts of E. coli compared with the AN4. Also, AN4 showed significantly decreased (P<0.05) FPD scores compared with the AN0. Therefore, the result of this study could support the possibilities of AN extract in litter to alleviate the FPD.","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"51 4","pages":"179-186"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ekjps.org/download/download_pdf?pid=kjps-51-4-179","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147887023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Spraying Illite and Zeolite on Litter Quality, Microflora, and Footpad Dermatitis in Broiler Litter 喷施伊利石和沸石对肉鸡窝产仔质量、菌群及脚垫皮炎的影响

Korean Journal of Poultry Science Pub Date : 2023-12-01 DOI: 10.5536/kjps.2023.50.4.273

Sehyun Park, Jihwan Lee, Dongcheol Song, Seyeon Chang, Jaewoo An, Kyeongho Jeon, Hyuck Kim, Jin Ho Cho

{"title":"Effects of Spraying Illite and Zeolite on Litter Quality, Microflora, and Footpad Dermatitis in Broiler Litter","authors":"Sehyun Park, Jihwan Lee, Dongcheol Song, Seyeon Chang, Jaewoo An, Kyeongho Jeon, Hyuck Kim, Jin Ho Cho","doi":"10.5536/kjps.2023.50.4.273","DOIUrl":"https://doi.org/10.5536/kjps.2023.50.4.273","url":null,"abstract":"A total of 192 one-day-old Ross 308 broilers (initial body weight: 31.30±0.41 g) were used in this experiment for 28 days. Treatments were as follows: basal rice husk (CON), rice husk + 1% illite (T1), rice husk + 1% zeolite (T2), and rice husk + 0.5% illite + 0.5% zeolite (T3). The percentage of illite and zeolite was calculated on a weight of litter. Each treatment had four replicates, with 12 birds per pen. Each pen was provided with 5 kg of rice husk as litter. Litter moisture content was significantly decreased (P<0.05) in the T1, T2, and T3 groups compared to CON group at week 4. In litter nitrogen, the T1 group showed significantly lower (P<0.05) litter nitrogen content than the other groups at weeks 1, 2, and 3. Also, the T3 group showed a significantly lower (P<0.05) litter nitrogen content than the CON and T2 groups at weeks 2 and 3. The counts of E. coli in the litter were significantly decreased (P<0.05) in the T1 group compared to the CON group at weeks 2 and 3. Moreover, the counts of Salmonella in the litter were significantly decreased (P<0.05) in the T1 group compared to the CON group at week 4. The FPD score significantly decreased (P<0.05) in the T1 group compared to the CON group. In conclusion, spraying illite could be an ideal way to improve litter quality and decrease FPD in broilers.","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"50 4","pages":"273-282"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ekjps.org/download/download_pdf?pid=kjps-50-4-273","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147892997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effects of Probiotics on Antioxidant Biochemical Parameters and Antioxidant Enzymes in the Blood, Intestinal Mucosal Tissues and Liver of Broiler Chicks under High Ambient Temperature Conditions 高温条件下益生菌对肉仔鸡血液、肠黏膜组织和肝脏抗氧化生化参数及抗氧化酶的影响

Korean Journal of Poultry Science Pub Date : 2023-06-01 DOI: 10.5536/kjps.2022.50.2.109

Kang-Min Seomoon, I. Jang

{"title":"Effects of Probiotics on Antioxidant Biochemical Parameters and\u0000 Antioxidant Enzymes in the Blood, Intestinal Mucosal Tissues and Liver of\u0000 Broiler Chicks under High Ambient Temperature Conditions","authors":"Kang-Min Seomoon, I. Jang","doi":"10.5536/kjps.2022.50.2.109","DOIUrl":"https://doi.org/10.5536/kjps.2022.50.2.109","url":null,"abstract":"Four-d-old broiler chicks were randomly assigned to 3 groups with 9 replicates (8 birds/cage) under high ambient temperature; birds fed a basal diet (CON), a basal diet supplemented with 0.25% of probiotic complex (LPB, 1 × 10 6 Lactobacillus plantarum , 1 × 10 6 Bacillus subtilis , and 1 × 10 6 Saccharomyces cerevisiae ) and 0.5% probiotic complex (HPB). Immediately after 28-d feeding trial, 6 birds having average body weight per group were sacrificed for evaluating the effects of probiotics on antioxidant parameters in the serum, intestine, and liver of birds. As results, serum biochemical parameters of nitrogen components including total protein, albumin, urea nitrogen, and glutathione were unaffected by dietary probiotics. In addition, serum superoxide dismutase (SOD), glutathione peroxidase (GPX), and glutathione S-transferase (GST) activities, and lipid peroxidation (MDA) were not changed by dietary probiotic supplement in birds. In the intestinal mucosa, SOD activity in the HPB group significantly ( P <0.05) increased compared with that in the CON and the LPB groups. Lipid peroxidation in the HPB group significantly ( P <0.05) decreased compared with that in the CON group. However, there was no statistical difference in GPX, and GST activities in the intestinal mucosa among treatment groups. In the liver, the activities of SOD, GPX, and GST, and the level of MDA were unaffected by probiotic supplement. In conclusion, 0.5% of probiotics significantly increased SOD activity and decreased lipid peroxidation in the intestinal mucosa, suggesting that probiotic complex could be potential to improve the small intestinal antioxidant capacity of bird under high ambient temperature conditions.","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87774923","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

Overcoming Ethical Conflicts and Dilemmas in Farm Animal Welfare: Investigation of Correlation between Ethical Awareness Level and Compliance with Animal Welfare-Related Regulations in Korean Layer Farms 克服农场动物福利中的伦理冲突与困境:韩国养殖场伦理意识水平与遵守动物福利相关法规的相关性调查

Korean Journal of Poultry Science Pub Date : 2023-06-01 DOI: 10.5536/kjps.2023.50.2.81

Bonnie Lee, Taesik Kim, Soo-Won Choi

{"title":"Overcoming Ethical Conflicts and Dilemmas in Farm Animal Welfare:\u0000 Investigation of Correlation between Ethical Awareness Level and Compliance\u0000 with Animal Welfare-Related Regulations in Korean Layer Farms","authors":"Bonnie Lee, Taesik Kim, Soo-Won Choi","doi":"10.5536/kjps.2023.50.2.81","DOIUrl":"https://doi.org/10.5536/kjps.2023.50.2.81","url":null,"abstract":"Animal welfare was introduced relatively late to Korea in comparison with Western countries. Nonetheless, the Korean government has continuously improved animal welfare-friendly regulations as policy instruments. Given the current situation, it is predicted that spontaneous settlement of the animal welfare policies will be difficult and may cause conflict in the farm animal industry. To identify and categorize conflicts caused by animal-welfare-related policies in the last five years, we investigated the awareness of animal welfare among Korean hen farms and the level of compliance with the animal welfare regulations. We collected a sample of 53 egg-laying chicken farm operators (e.g., owners or head managers) was collected through the on-site survey (90% confidence level (Z-score: 1.65) and 10.18% tolerance, based on a number of 797 egg-laying farms in 2020). Ethical conflicts on the farms were categorized into three different types according to the hen farm's ethical awareness level: passive, moderate, and active. Additionally, we investigated the correlation between compliance with regulations and ethical consideration. This study confirmed that compliance with animal welfare-related regulations significantly correlated to the level of ethical consideration of farm operators. Interestingly, we also observed that farm operators did not comply with the regulation despite their high level of awareness of animal welfare. This conflict implies contradiction and unresolved ethical dilemmas. Therefore, this study argues that the policies cause conflict in the field despite the certain level of effectiveness on animal welfare regulations.","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87382936","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 Crude Protein and Phytase in the Diet on Growth Performance and Excretion Contents of Nitrogen and Phosphorus in Broiler Chicks 饲粮中粗蛋白质和植酸酶对肉仔鸡生长性能和氮磷排泄含量的影响

Korean Journal of Poultry Science Pub Date : 2023-06-01 DOI: 10.5536/kjps.2023.50.2.101

Woo-Do Lee, Jiseon Son, Hyunsoo Kim, Hee-jin Kim, Yeon-Seo Yun, H. Kang, Woncheoul Park, Han-Ha Chai, E. Hong

{"title":"Effects of Crude Protein and Phytase in the Diet on Growth\u0000 Performance and Excretion Contents of Nitrogen and Phosphorus in Broiler\u0000 Chicks","authors":"Woo-Do Lee, Jiseon Son, Hyunsoo Kim, Hee-jin Kim, Yeon-Seo Yun, H. Kang, Woncheoul Park, Han-Ha Chai, E. Hong","doi":"10.5536/kjps.2023.50.2.101","DOIUrl":"https://doi.org/10.5536/kjps.2023.50.2.101","url":null,"abstract":"This study was conducted to investigate the appropriate levels of crude protein (CP) and phytase in the diet of broiler chicks in order to reduce nitrogen and phosphorus contents in feces while maintaining performance of broilers. Six hundred forty-eight 1-day-old male broilers (41.9±0.91 g) had a total of 3 × 3 complex factor of 3 levels of CP (22%, 21%, 20%) and 3 levels of phytase (1,000, 800, 500 FTU/kg) in the diet. Divided into 9 treatments, 4 replications per treatment, 18 birds per replication, were completely randomly assigned and reared in a metabolic cage for 7 days. Seven-day-old body weight (BW) and body weight gain (BWG) of broilers were significantly lower at CP 20% treatment ( P <0.05), and feed conversion ratio (FCR) was significantly lower at CP 21% and phytase 800 FTU/kg treatment ( P <0.05). Nitrogen and phosphorus contents in chicken excreta were significantly lower in CP 20% and phytase 500 FTU/kg treatment, respectively ( P <0.05). Interactions between CP and phytase in the feed were shown for nitrogen and phosphorus in feces ( P <0.05). In conclusion, considering the broiler performance and excretion contents of nitrogen and phosphorus, it is thought that CP and phytase levels of broiler chicks diet can be reduced by 21% and 800 FTU/kg, respectively.","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78837820","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 Study on the Production Performance of Korean Native Chickens for amgye Chicken Production 韩国土鸡生产性能的研究

Korean Journal of Poultry Science Pub Date : 2023-06-01 DOI: 10.5536/kjps.2023.50.2.91

K. Kim, Hyun-Wook Kim, H. Choo, J. Heo, Ki Suk Oh, Sang-Hyon Oh, See Hwan Sohn

{"title":"A Study on the Production Performance of Korean Native Chickens for\u0000 amgye Chicken Production","authors":"K. Kim, Hyun-Wook Kim, H. Choo, J. Heo, Ki Suk Oh, Sang-Hyon Oh, See Hwan Sohn","doi":"10.5536/kjps.2023.50.2.91","DOIUrl":"https://doi.org/10.5536/kjps.2023.50.2.91","url":null,"abstract":"This study aimed to develop a high-productivity breed of Korean native Samgye chicken. We evaluated the production performance of six Korean native chicken combinations (KNC-SCYC, SCYD, SDYC, SDYD, SYYC, SYYD) and GSP-Hanhyup Korean native chickens, with Baeksemi chickens used as a control group. The performance test was conducted from hatching to 7 weeks of age on 756 chickens, and we measured survival rate, body weight, shank length, feed utility, and carcass yield. The overall survival rate was nearly 100% for all strains. However, body weight showed significant differences between strains at all ages ( P <0.01), with Baeksemi weighing 863.8±76.9 g, GSP-Hanhyup weighing 804.7±72.5 g, and KNC-combinations weighing 543.0±61.8 g at 5 weeks of age. The duration needed to reach 850 g was estimated to be 34.5 days for Baeksemi, 37.5 days for GSP-Hanhyup, and 45.8-48.8 days for KNC-combinations. Carcass yield percentage was highest for KNC-SYYD combination at 63.3%, followed by Baeksemi at 60.4%, and GSP-Hanhyup at 56.1%. Shank length at 850 g body weight was 7.6 cm for KNC-SYYD combination, 7.8 cm for Baeksemi, and 8.0 cm for GSP-Hanhyup. The feed conversion ratio at 850 g body weight was 1.81 for Baeksemi, 2.17 for GSP-Hanhyup, and 2.27 for KNC-SCYC combination. Our results suggest that the KNC-SYYD combination and GSP-Hanhyup breed have the potential to be used in Samgye production due to their moderate growth performance, higher carcass yield, and shorter shank length, despite their lower growth productivity and feed efficiency when compared to Baeksemi.","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74405056","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

Farm Survey on Eggshell Quality and Egg Vitamin D3 Contents in Laying Hens Fed Vitamin D3-enriched Diets 饲粮添加维生素D3对蛋鸡蛋壳品质和鸡蛋维生素D3含量的影响

Korean Journal of Poultry Science Pub Date : 2023-06-01 DOI: 10.5536/kjps.2023.50.2.73

Dong-Hae Joh, B. Kwon, Da-Hye Kim, Kyung-Woo Lee

{"title":"Farm Survey on Eggshell Quality and Egg Vitamin D3 Contents in\u0000 Laying Hens Fed Vitamin D3-enriched Diets","authors":"Dong-Hae Joh, B. Kwon, Da-Hye Kim, Kyung-Woo Lee","doi":"10.5536/kjps.2023.50.2.73","DOIUrl":"https://doi.org/10.5536/kjps.2023.50.2.73","url":null,"abstract":"Vitamin D3 is an essential nutrient which plays an important role in calcium metabolism for eggshell formation, in calcium and phosphorus metabolism for bone mineralization, and in maintaining host immunity. Although there have been a great deal of studies investigating the role of vitamin D3 in eggshell quality and vitamin D3 contents in eggs, no attempts have been made to monitor the eggshell quality and vitamin D3 contents in eggs at farm level. Thus, this survey was conducted to measure eggshell quality and vitamin D3 contents in eggs laid from laying hens fed diets containing different levels of vitamin D3. Eggs from four commercial laying hen farms were sampled before and 1, 2, 3 and 5 weeks after provision of the vitamin D3-enriched diets added with the level of 16,500 IU and 29,000 IU. Dietary vitamin D3 did not affect the eggshell color and breaking strength, but increase the eggshell thickness. In addition, vitamin D3 contents in eggs were elevated as vitamin D3 in diets was increased. It is concluded that addition of dietary vitamin D3 into the diets of laying hens at the commercial laying hen farms could improve eggshell quality and vitamin D3 contents in eggs. It is expected that the prediction equation for egg vitamin D3 contents might be produced if more data on vitamin D3 contents in diets and eggs at the farms are to be analyzed.","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83733183","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

High-Risk Area for Human Infection with Avian Influenza Based on Novel Risk Assessment Matrix 基于新型风险评估矩阵的人感染禽流感高危区

Korean Journal of Poultry Science Pub Date : 2023-03-01 DOI: 10.5536/kjps.2023.50.1.41

Sung-dae Park, Dae-sung Yoo

引用次数: 0

Poultry By-Product Meal as a Potential Protein Source in Broiler Diets with Exogenous Protease Supplementation 添加外源蛋白酶的肉仔鸡饲粮中家禽副产物粕作为潜在蛋白质来源的研究

Korean Journal of Poultry Science Pub Date : 2023-03-01 DOI: 10.5536/kjps.2022.50.1.31

Heshani Amalka Vithana, S. P. Macelline, S. R. Nawarathne, D. Jayasena, M. Yu, Eunsoo Seo, Mangala Amarsinghe, M. N. Nambapana, J. Cho, J. Heo

{"title":"Poultry By-Product Meal as a Potential Protein Source in Broiler\u0000 Diets with Exogenous Protease Supplementation","authors":"Heshani Amalka Vithana, S. P. Macelline, S. R. Nawarathne, D. Jayasena, M. Yu, Eunsoo Seo, Mangala Amarsinghe, M. N. Nambapana, J. Cho, J. Heo","doi":"10.5536/kjps.2022.50.1.31","DOIUrl":"https://doi.org/10.5536/kjps.2022.50.1.31","url":null,"abstract":"The objective of this study was to investigate the effect of exogenous protease supplementation in diets formulated with poultry by-product meal on growth performance, small intestine magnitudes, and meat physiochemical characters in broiler chickens from 21 to 35 days post-hatch. A total of 120, one-day-old \"Arbor Acres Plus\" broiler chickens (male: female - 50:50) were allocated one of two dietary treatments to give six replicates and ten birds per cage. Two dietary treatments included a control diet (CON) and a diet supplemented with protease (CON+Pro). At day 35, body weight and feed intakes were measured to calculate the feed conversion ratio for the entire experiment period. Two birds from each pen were euthanized to measure the relative lengths and relative weights of three small intestine sections and meat samples were collected for physiochemical characteristic analyses at 35 days post-hatch. Exogenous protease supplementation did not influence ( P >0.05) growth performance but showed a tendency to improve FCR ( P =0.082). Protease supplementation showed a tendency to reduce proximal small intestine length ( P =0.091). Broilers offered dietary treatments influenced minced meat color where protease supplementation resulted in lower CIE b * ( P <0.001) colorimetric value for yellowness and showed a significant trend ( P =0.059) on reducing meat redness CIE a * . In conclusion, the addition of exogenous protease to a broiler diet formulated with poultry by-product meal did not affect the growth performance, small intestine magnitudes, and meat physiochemical parameters (except CIE b * ) in broiler chickens.","PeriodicalId":17845,"journal":{"name":"Korean Journal of Poultry Science","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84051091","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

Correlation between Egg Breakage and Cumulative External Forces on Eggs during Egg Collection in Laying Hen Farms 蛋鸡场采蛋过程中鸡蛋破损与鸡蛋累积外力的相关性研究

Korean Journal of Poultry Science Pub Date : 2023-03-01 DOI: 10.5536/kjps.2023.50.1.23

Dong-Hae Joh, B. Kwon, Da-Hye Kim, Y. Kim, Kyung-Woo Lee

引用次数: 0