Killinger K M, Calkins C R, Umberger W J, Feuz D M, Eskridge K M
Animal Science Department, University of Nebraska, Lincoln 68583, USA.
J Anim Sci. 2004 Nov;82(11):3302-7. doi: 10.2527/2004.82113302x.
To determine consumer sensory acceptance and value of branded, Argentine (grass-finished, aged 30+ d) and domestic (U.S. grain-finished beef, aged 9 d) strip loins were paired based on similar Warner-Bratzler shear force values (P = 0.34) and similar marbling levels (P = 0.82). Consumers in Chicago, IL, and San Francisco, CA (n = 124 per city), evaluated one pair of Argentine and domestic steaks, and had the opportunity to participate in a silent, sealed-bid auction to purchase steaks matching the taste panel samples. Consumers were categorized into three groups based on overall acceptability ratings: 1) those who found Argentine steaks more acceptable, 2) those who found domestic steaks more acceptable, and 3) those who were indifferent. Consumers rated domestic steaks higher (P < 0.05) in juiciness, tenderness, flavor, and overall acceptability. Consumers in both Chicago and San Francisco were willing to pay more (P < 0.05) for domestic steaks (0.86 dollars and 0.52 dollars per 0.45 kg, respectively). In both cities, consumers who found Argentine samples more acceptable were willing to pay more (P < 0.05) for Argentine steaks (0.74 dollars per 0.45 kg in Chicago and 1.82 dollars per 0.45 kg in San Francisco), and consumers who found domestic samples more acceptable were willing to pay more (P < 0.05) for domestic steaks (1.66 dollars per 0.45 kg in Chicago and 1.34 dollars per 0.45 kg in San Francisco). Consumers who were indifferent were willing to pay similar (P = 0.99) amounts for Argentine and domestic steaks. Although some consumers found Argentine beef more acceptable than domestic beef (19.7 and 16.5% in Chicago and San Francisco, respectively) and were willing to pay more for it, most consumers found domestic beef to be more acceptable (59.0% in Chicago and 61.5% in San Francisco) and were willing to pay more to obtain a more acceptable product.
为确定消费者对品牌牛肉的感官接受度和价值,将阿根廷(草饲育肥,30多天龄)和美国本土(谷饲育肥牛肉,9天龄)的条状腰肉,依据相似的沃纳-布拉茨勒剪切力值(P = 0.34)和相似的大理石花纹等级(P = 0.82)进行配对。伊利诺伊州芝加哥市和加利福尼亚州旧金山市的消费者(每个城市124人)对一对阿根廷和美国本土牛排进行评估,并有机会参与一场无声密封拍卖,竞拍与味觉测试样品口感匹配的牛排。根据总体可接受性评分,消费者被分为三组:1)认为阿根廷牛排更可接受的人;2)认为美国本土牛排更可接受的人;3)无明显偏好的人。消费者对美国本土牛排的多汁性、嫩度、风味和总体可接受性评分更高(P < 0.05)。芝加哥和旧金山的消费者都愿意为美国本土牛排支付更高价格(P < 0.05)(分别为每0.45千克0.86美元和0.52美元)。在这两个城市中,认为阿根廷牛排样品更可接受的消费者愿意为阿根廷牛排支付更高价格(P < 0.05)(芝加哥为每0.45千克0.74美元,旧金山为每0.45千克1.82美元),而认为美国本土牛排样品更可接受的消费者愿意为美国本土牛排支付更高价格(P < 0.05)(芝加哥为每0.45千克1.66美元,旧金山为每0.45千克1.34美元)。无明显偏好的消费者愿意为阿根廷和美国本土牛排支付相似金额(P = 0.99)。尽管一些消费者认为阿根廷牛肉比美国本土牛肉更可接受(芝加哥和旧金山分别为19.7%和16.5%),并愿意为此支付更高价格,但大多数消费者认为美国本土牛肉更可接受(芝加哥为59.0%,旧金山为61.5%),并愿意支付更高价格以获得更可接受的产品。