Abstract:
The National Beef Quality Audit - 2022 serves as a benchmark of the current fed steer and heifer population of the U.S. beef industry and allows comparison to previous audits as a method of monitoring industry progress. In-plant cooler assessments and collections of beef carcass data took place from July 2021 to November 2022. During in-plant evaluations, 10% of 1-d production was surveyed for quality and yield indicating characteristics of fed beef carcasses (n = 9,746 beef carcasses). Distributions of sex classes among sampled carcasses were steer (65.0%) and heifer (35.0%), whereas distributions of breed type were native (87.7%), dairy (11.3%), and Bos indicus (0.9%). Mean values were observed for USDA Yield Grades (YG; 3.3), USDA Quality Grade (QG; Choice16), marbling score (Small98), ribeye area (91.0 cm2), adjusted fat thickness (1.49 cm), hot carcass weight (401.9 kg), and KPH (2.5%). Mean overall maturity was A66, with a mean lean maturity of A56 and mean skeletal maturity of A72. There were 28.1% of carcasses identified for use in a USDA-certified beef G-Schedule Program. Defects, such as dark cutting and blood splash, were observed at 1.8% and 0.5%, respectively. Distributions of USDA YG were YG 1 (8.2%), YG 2 (30.7%), YG 3 (40.2%), YG 4 (16.6%), and YG 5 (4.3%). USDA QGs were observed at 7.5% Prime, 69.2% Choice, 16.4% Select, and 6.8% other. The results of this study provide an updated look at the current grading trends of beef carcasses in the United States to drive progress in the fed beef industry.
摘要:
国家牛肉质量审计-2022年是美国牛肉行业当前联邦牛和小母牛人口的基准,并允许与以前的审计进行比较,作为监测行业进展的一种方法。工厂内冷却器评估和牛肉car体数据收集于2021年7月至2022年11月进行。在工厂内评估期间,对1-d产量的10%进行了质量和产量调查,表明了饲喂牛肉car体的特征(n=9,746牛肉car体)。样本尸体中的性别类别分布分别为牛(65.0%)和小母牛(35.0%),而品种类型的分布是本地的(87.7%),乳制品(11.3%),和Bosindicus(0.9%)。观察到美国农业部产量等级的平均值(YG;3.3),美国农业部质量等级(QG;Choice16),大理石花纹得分(Small98),ribeye面积(91.0cm2),调整脂肪厚度(1.49厘米),热car体重量(401.9公斤),和KPH(2.5%)。平均总体成熟度为A66,平均瘦肉成熟度为A56,平均骨骼成熟度为A72。确定有28.1%的屠体用于美国农业部认证的牛肉G-计划。缺陷,比如黑暗切割和血液飞溅,分别为1.8%和0.5%,分别。美国农业部YG的分布为YG1(8.2%),YG2(30.7%),YG3(40.2%),YG4(16.6%),和YG5(4.3%)。美国农业部的QGs在7.5%的Prime时观察到,69.2%的选择,16.4%选择,和其他6.8%。这项研究的结果提供了对美国牛肉屠体当前分级趋势的最新了解,以推动饲料牛肉行业的进步。