Zachary Heinsohn, Austin Brown, E. Sobotik, G. House, A. Stiewert, William Evan Chaney, Vivek Kuttappan, G.S. Archer
{"title":"评估饲喂浓缩酵母菌发酵产品对肉鸡生产性能和应激敏感性的影响","authors":"Zachary Heinsohn, Austin Brown, E. Sobotik, G. House, A. Stiewert, William Evan Chaney, Vivek Kuttappan, G.S. Archer","doi":"10.3390/poultry3010006","DOIUrl":null,"url":null,"abstract":"This study evaluated the effect of a concentrated yeast fermentation product on the performance and stress response of broiler chickens. Day-old Cobb 500 male broiler chicks were randomly allocated to one of two dietary treatments: Control (CON) or concentrated yeast fermentation product (CSCFP, 0.625 kg/MT). On d18, simultaneous feed withdrawal and heat stress challenges were performed for 12 h. Blood was analyzed for plasma corticosterone (CORT) and heterophil-to-lymphocyte ratio (HL) on d19 and d42. Performance parameters were collected throughout the trial: body weight (BW), feed consumption (FC), and feed conversion ratio (FCR). On d19, the CSCFP birds had lower (p ≤ 0.05) CORT (5320.3 ng/mL) and HL (0.14) than the CON birds (9049.6 ng/mL and 0.21). On d42, the CSCFP birds had lower (p ≤ 0.05) CORT (1623.8 ng/mL) and HL (0.74) than the CON birds (2920.2 ng/mL and 1.05). No differences were observed in mortality (p > 0.05). The CON birds had a higher (p ≤ 0.05) FCR than CSCFP throughout all phases. The CON birds consumed more feed than the CSCFP birds throughout all phases (p ≤ 0.05). In conclusion, CYFP reduced stress and improved feed conversion when compared to CON, making it a viable feed additive to improve welfare and production.","PeriodicalId":513559,"journal":{"name":"Poultry","volume":"132 3","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evaluating the Effects of Feeding a Concentrated Saccharomyces cerevisiae Fermentation Product on the Performance and Stress Susceptibility of Broiler Chickens\",\"authors\":\"Zachary Heinsohn, Austin Brown, E. Sobotik, G. House, A. Stiewert, William Evan Chaney, Vivek Kuttappan, G.S. Archer\",\"doi\":\"10.3390/poultry3010006\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This study evaluated the effect of a concentrated yeast fermentation product on the performance and stress response of broiler chickens. Day-old Cobb 500 male broiler chicks were randomly allocated to one of two dietary treatments: Control (CON) or concentrated yeast fermentation product (CSCFP, 0.625 kg/MT). On d18, simultaneous feed withdrawal and heat stress challenges were performed for 12 h. Blood was analyzed for plasma corticosterone (CORT) and heterophil-to-lymphocyte ratio (HL) on d19 and d42. Performance parameters were collected throughout the trial: body weight (BW), feed consumption (FC), and feed conversion ratio (FCR). On d19, the CSCFP birds had lower (p ≤ 0.05) CORT (5320.3 ng/mL) and HL (0.14) than the CON birds (9049.6 ng/mL and 0.21). On d42, the CSCFP birds had lower (p ≤ 0.05) CORT (1623.8 ng/mL) and HL (0.74) than the CON birds (2920.2 ng/mL and 1.05). No differences were observed in mortality (p > 0.05). The CON birds had a higher (p ≤ 0.05) FCR than CSCFP throughout all phases. The CON birds consumed more feed than the CSCFP birds throughout all phases (p ≤ 0.05). In conclusion, CYFP reduced stress and improved feed conversion when compared to CON, making it a viable feed additive to improve welfare and production.\",\"PeriodicalId\":513559,\"journal\":{\"name\":\"Poultry\",\"volume\":\"132 3\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-03-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Poultry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3390/poultry3010006\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Poultry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/poultry3010006","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Evaluating the Effects of Feeding a Concentrated Saccharomyces cerevisiae Fermentation Product on the Performance and Stress Susceptibility of Broiler Chickens
This study evaluated the effect of a concentrated yeast fermentation product on the performance and stress response of broiler chickens. Day-old Cobb 500 male broiler chicks were randomly allocated to one of two dietary treatments: Control (CON) or concentrated yeast fermentation product (CSCFP, 0.625 kg/MT). On d18, simultaneous feed withdrawal and heat stress challenges were performed for 12 h. Blood was analyzed for plasma corticosterone (CORT) and heterophil-to-lymphocyte ratio (HL) on d19 and d42. Performance parameters were collected throughout the trial: body weight (BW), feed consumption (FC), and feed conversion ratio (FCR). On d19, the CSCFP birds had lower (p ≤ 0.05) CORT (5320.3 ng/mL) and HL (0.14) than the CON birds (9049.6 ng/mL and 0.21). On d42, the CSCFP birds had lower (p ≤ 0.05) CORT (1623.8 ng/mL) and HL (0.74) than the CON birds (2920.2 ng/mL and 1.05). No differences were observed in mortality (p > 0.05). The CON birds had a higher (p ≤ 0.05) FCR than CSCFP throughout all phases. The CON birds consumed more feed than the CSCFP birds throughout all phases (p ≤ 0.05). In conclusion, CYFP reduced stress and improved feed conversion when compared to CON, making it a viable feed additive to improve welfare and production.