Thachary R Mayer, Sydni E Borders, Trent E Schwartz, Kerri B Gehring, Davey B Griffin, Christopher R Kerth, Keith E Belk, John A Scanga, Mahesh N Nair, Morgan M Pfeiffer, Gretchen G Mafi, Keayla M Harr, Ty E Lawrence, Travis C Tennant, Loni W Lucherk, Travis G O'Quinn, Erin S Beyer, Phil D Bass, Lyda G Garcia, Benjamin M Bohrer, Jessica A Pempek, Andrea J Garmyn, Robert J Maddock, C Chad Carr, T Dean Pringle, Tracy L Scheffler, Jason M Scheffler, Alexander M Stelzleni, John M Gonzalez, Keith R Underwood, Bailey N Harsh, Crystal M Waters, Jeffrey W Savell
{"title":"国家牛肉质量审计- 2022：饲养阉牛和小母牛胴体特性的仪器分级评估。","authors":"Thachary R Mayer, Sydni E Borders, Trent E Schwartz, Kerri B Gehring, Davey B Griffin, Christopher R Kerth, Keith E Belk, John A Scanga, Mahesh N Nair, Morgan M Pfeiffer, Gretchen G Mafi, Keayla M Harr, Ty E Lawrence, Travis C Tennant, Loni W Lucherk, Travis G O'Quinn, Erin S Beyer, Phil D Bass, Lyda G Garcia, Benjamin M Bohrer, Jessica A Pempek, Andrea J Garmyn, Robert J Maddock, C Chad Carr, T Dean Pringle, Tracy L Scheffler, Jason M Scheffler, Alexander M Stelzleni, John M Gonzalez, Keith R Underwood, Bailey N Harsh, Crystal M Waters, Jeffrey W Savell","doi":"10.1093/tas/txaf097","DOIUrl":null,"url":null,"abstract":"<p><p>The instrument grading assessment portion of the National Beef Quality Audit <b>(NBQA)</b>-2022 allowed for the evaluation of beef carcass traits over a 12-mo period. One week of instrument grading data was collected each month from 6 major beef processing companies from July 2021 to June 2022 (<i>n</i> = 4,418,768 carcasses). The sample pool was composed of 58.0% steer carcasses and 42.0% heifer carcasses, and the breed type distribution was 98.0% native, 1.6% dairy, and 0.3% <i>Bos indicus</i>. Means for USDA Yield Grade <b>(YG)</b> and YG factors were YG, 3.26, adjusted fat thickness, 1.55 cm, HCW, 400.6 kg, ribeye area, 91.6 cm<sup>2</sup>, and KPH, 2.1%. Frequency distribution of USDA YG was YG 1 = 7.87%, YG 2 = 31.70%, YG 3 = 40.03%, YG 4 = 17.07%, and YG 5 = 3.35%. Mean marbling score was Modest<sup>16</sup>, and the distribution of USDA quality grades was Prime = 8.19%, Choice = 74.84%, Select = 15.68%, and other = 1.31%. Frequency of carcasses grading Prime on Monday (10.89%), a 3.27%-point increase compared to the Prime average for the other days of the week (7.72%), demonstrates the potential advantage of additional postmortem chilling over the weekend from Friday and/or Saturday slaughter days. Comparisons of breed type and sex class revealed differences (<i>P</i> < 0.05) in marbling with dairy heifers (Modest<sup>55</sup>) > native heifers (Modest<sup>31</sup>) > dairy steers (Modest<sup>12</sup>) > native steers (Modest<sup>03</sup>), and ribeye area with native steers (93.3 cm<sup>2</sup>) > native heifers (90.9 cm<sup>2</sup>) > dairy steers (81.8 cm<sup>2</sup>) > dairy heifers (80.3 cm<sup>2</sup>). Month-to-month frequency distributions in beef carcass traits revealed numerical differences in marbling, USDA quality grade distribution, HCW, and adjusted fat thicknesses. Percentage distribution of dark cutting carcasses revealed numerically higher incidences during the summer and fall seasons compared to winter and spring. Findings from the instrument grading assessment of the NBQA-2022 provide the beef industry with the most comprehensive and current beef carcass quality and yield information available.</p>","PeriodicalId":23272,"journal":{"name":"Translational Animal Science","volume":"9 ","pages":"txaf097"},"PeriodicalIF":1.8000,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12311919/pdf/","citationCount":"0","resultStr":"{\"title\":\"National Beef Quality Audit - 2022: Instrument grading assessments of carcass characteristics of fed steers and heifers.\",\"authors\":\"Thachary R Mayer, Sydni E Borders, Trent E Schwartz, Kerri B Gehring, Davey B Griffin, Christopher R Kerth, Keith E Belk, John A Scanga, Mahesh N Nair, Morgan M Pfeiffer, Gretchen G Mafi, Keayla M Harr, Ty E Lawrence, Travis C Tennant, Loni W Lucherk, Travis G O'Quinn, Erin S Beyer, Phil D Bass, Lyda G Garcia, Benjamin M Bohrer, Jessica A Pempek, Andrea J Garmyn, Robert J Maddock, C Chad Carr, T Dean Pringle, Tracy L Scheffler, Jason M Scheffler, Alexander M Stelzleni, John M Gonzalez, Keith R Underwood, Bailey N Harsh, Crystal M Waters, Jeffrey W Savell\",\"doi\":\"10.1093/tas/txaf097\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The instrument grading assessment portion of the National Beef Quality Audit <b>(NBQA)</b>-2022 allowed for the evaluation of beef carcass traits over a 12-mo period. One week of instrument grading data was collected each month from 6 major beef processing companies from July 2021 to June 2022 (<i>n</i> = 4,418,768 carcasses). The sample pool was composed of 58.0% steer carcasses and 42.0% heifer carcasses, and the breed type distribution was 98.0% native, 1.6% dairy, and 0.3% <i>Bos indicus</i>. Means for USDA Yield Grade <b>(YG)</b> and YG factors were YG, 3.26, adjusted fat thickness, 1.55 cm, HCW, 400.6 kg, ribeye area, 91.6 cm<sup>2</sup>, and KPH, 2.1%. Frequency distribution of USDA YG was YG 1 = 7.87%, YG 2 = 31.70%, YG 3 = 40.03%, YG 4 = 17.07%, and YG 5 = 3.35%. Mean marbling score was Modest<sup>16</sup>, and the distribution of USDA quality grades was Prime = 8.19%, Choice = 74.84%, Select = 15.68%, and other = 1.31%. Frequency of carcasses grading Prime on Monday (10.89%), a 3.27%-point increase compared to the Prime average for the other days of the week (7.72%), demonstrates the potential advantage of additional postmortem chilling over the weekend from Friday and/or Saturday slaughter days. Comparisons of breed type and sex class revealed differences (<i>P</i> < 0.05) in marbling with dairy heifers (Modest<sup>55</sup>) > native heifers (Modest<sup>31</sup>) > dairy steers (Modest<sup>12</sup>) > native steers (Modest<sup>03</sup>), and ribeye area with native steers (93.3 cm<sup>2</sup>) > native heifers (90.9 cm<sup>2</sup>) > dairy steers (81.8 cm<sup>2</sup>) > dairy heifers (80.3 cm<sup>2</sup>). Month-to-month frequency distributions in beef carcass traits revealed numerical differences in marbling, USDA quality grade distribution, HCW, and adjusted fat thicknesses. Percentage distribution of dark cutting carcasses revealed numerically higher incidences during the summer and fall seasons compared to winter and spring. Findings from the instrument grading assessment of the NBQA-2022 provide the beef industry with the most comprehensive and current beef carcass quality and yield information available.</p>\",\"PeriodicalId\":23272,\"journal\":{\"name\":\"Translational Animal Science\",\"volume\":\"9 \",\"pages\":\"txaf097\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2025-07-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12311919/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Translational Animal Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1093/tas/txaf097\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q3\",\"JCRName\":\"AGRICULTURE, DAIRY & ANIMAL SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Translational Animal Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1093/tas/txaf097","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
National Beef Quality Audit - 2022: Instrument grading assessments of carcass characteristics of fed steers and heifers.
The instrument grading assessment portion of the National Beef Quality Audit (NBQA)-2022 allowed for the evaluation of beef carcass traits over a 12-mo period. One week of instrument grading data was collected each month from 6 major beef processing companies from July 2021 to June 2022 (n = 4,418,768 carcasses). The sample pool was composed of 58.0% steer carcasses and 42.0% heifer carcasses, and the breed type distribution was 98.0% native, 1.6% dairy, and 0.3% Bos indicus. Means for USDA Yield Grade (YG) and YG factors were YG, 3.26, adjusted fat thickness, 1.55 cm, HCW, 400.6 kg, ribeye area, 91.6 cm2, and KPH, 2.1%. Frequency distribution of USDA YG was YG 1 = 7.87%, YG 2 = 31.70%, YG 3 = 40.03%, YG 4 = 17.07%, and YG 5 = 3.35%. Mean marbling score was Modest16, and the distribution of USDA quality grades was Prime = 8.19%, Choice = 74.84%, Select = 15.68%, and other = 1.31%. Frequency of carcasses grading Prime on Monday (10.89%), a 3.27%-point increase compared to the Prime average for the other days of the week (7.72%), demonstrates the potential advantage of additional postmortem chilling over the weekend from Friday and/or Saturday slaughter days. Comparisons of breed type and sex class revealed differences (P < 0.05) in marbling with dairy heifers (Modest55) > native heifers (Modest31) > dairy steers (Modest12) > native steers (Modest03), and ribeye area with native steers (93.3 cm2) > native heifers (90.9 cm2) > dairy steers (81.8 cm2) > dairy heifers (80.3 cm2). Month-to-month frequency distributions in beef carcass traits revealed numerical differences in marbling, USDA quality grade distribution, HCW, and adjusted fat thicknesses. Percentage distribution of dark cutting carcasses revealed numerically higher incidences during the summer and fall seasons compared to winter and spring. Findings from the instrument grading assessment of the NBQA-2022 provide the beef industry with the most comprehensive and current beef carcass quality and yield information available.
期刊介绍：
Translational Animal Science (TAS) is the first open access-open review animal science journal, encompassing a broad scope of research topics in animal science. TAS focuses on translating basic science to innovation, and validation of these innovations by various segments of the allied animal industry. Readers of TAS will typically represent education, industry, and government, including research, teaching, administration, extension, management, quality assurance, product development, and technical services. Those interested in TAS typically include animal breeders, economists, embryologists, engineers, food scientists, geneticists, microbiologists, nutritionists, veterinarians, physiologists, processors, public health professionals, and others with an interest in animal production and applied aspects of animal sciences.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
