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一、选择适宜品种
越冬菠菜如采用一般品种很易抽薹而降低产量和品质。因此,越冬栽培应选用越冬性强、耐寒性强、品质好、生长快、增产潜力大的品种。如诸城刺籽菠菜、青岛菠菜、日本猪耳菠菜等。 相似文献
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近日,由贵州省遵义市长沙路坪山农贸市场百年卤味坊女青年何庆容投资兴建的黄粉虫养殖加工基地正式挂牌成立。该基地占地10亩,养殖厂房30多间,预计年可产黄粉虫50吨,是贵州省目前最大的黄粉虫养殖加工基地。黄粉虫又叫面包虫、高蛋白虫、通常也称黄粉甲。原为一种仓储害虫,属于 相似文献
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淡水壳菜对鄱阳湖区双壳类的感染状况调查 总被引:1,自引:0,他引:1
2001—11-2002—05的鄱阳湖候鸟保护区淡水壳菜对双壳类的感染情况调查显示,淡水壳菜对双壳类的感染具有普遍性,扭蚌、背瘤丽蚌、洞穴丽蚌、猪耳丽蚌等种类的感染率较高,所有个体的平均感染率为35.3%;不同的个体间,感染强度的变化比较大,所有被感染个体的平均感染强度为6.6;感染强度≥10的个体仅占被感染个体的18.4%;淡水壳菜主要寄生在双壳类的壳顶和进、出水管附近。 相似文献
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In this article we use structural econometrics to formally test whether the use of the alternative marketing arrangements (AMAs) by pork packers is the source of their market power on the spot (cash) market for live hogs. We specify the pork packers' conjectures of the change in the industry total market procurement of live hogs through the spot market with respect to their AMAs stocks. The test is carried out using the mandatory price reporting data. Our results show that pork packers have statistically significant market power on the spot market for live hogs, but the source of that market power cannot be narrowed down to the existence of AMAs stocks. 相似文献
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本研究从影响消费者对安全认证猪肉的购买意愿以及消费者购买意愿—行为差距的内外部因素出发,综合计划行为理论、感知价值理论和情境效应理论构建消费者购买决策模型。基于华东地区江苏省和安徽省844个样本的调查数据,本文采用结构方程模型深入挖掘影响消费者对安全认证猪肉购买意愿与购买行为的主要因素。结果表明:消费者行为特征因素对消费者的购买意愿存在显著影响。在安全认证猪肉消费领域存在购买意愿与购买行为不一致的现象,消费者情境因素(感知行为控制)和环境情境因素在购买意愿向购买行为转化的过程中发挥着重要的调节作用。安全认证猪肉的合理定价以及安全健康生活理念的宣传推广不容忽视。 相似文献
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This article provides the first known examination of how animal welfare information provided by media sources impacts beef, pork and poultry demand. Results suggest that media attention to animal welfare has a small, but statistically significant impact on meat demand. Long‐run pork and poultry demand are hampered by increasing media attention whereas beef demand is not directly impacted. Loss in consumer demand is found to come from exiting the meat complex rather than spilling over and enhancing demand of competing meats. An outline of economic implications is provided for the broader discussion of animal welfare. 相似文献
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通过消费者问卷调查,对冷鲜肉品牌建设要素假设进行了检验,结果表明:4大因素13+-指标,即质量满意度(外观形象、品种标志、质量标志、口感风味),品牌联想美誉度(品牌信用度、品牌联想效果、企业责任感水平、品牌关誉度),品牌知名度(未提及知名度、提及知名度、市场占有率)和营销水平(价格适中度、专柜/专店销售水平),与冷鲜r8品牌建设存在较密切关系。 相似文献
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本文利用主流媒体对猪肉质量安全事件的新闻报道构造食品安全丑闻报道指数,首次从媒体报道视角分析食品安全丑闻对中国猪肉供应链产销价格传导的影响。平滑转换误差修正模型检验结果表明:(1)食品安全丑闻报道是决定产销价格传导关系的门槛变量,当食品安全丑闻报道指数处于门槛值以内时,产销价格传导表现为线性关系,超出门槛值以后,则表现为非线性关系,但更多时候表现为非线性关系;(2)食品安全丑闻报道对产销价格具有非对称冲击效应,生猪价格比猪肉价格对冲击的反应程度更大、持续时间更长。这种非对称冲击效应不仅会打破产销价格波动的固有规律,也会加剧供应链上福利分配不均衡,处于弱势地位的养殖户更容易遭受福利损失。进一步采用向量自回归模型进行脉冲响应分析,结果仍然支持上述结论。 相似文献
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Ken McEwan Lynn Marchand Max Shang Delia Bucknell 《Revue canadienne d'agroeconomie》2020,68(2):201-206
Canada and the United States have strong economic ties and form part of an integrated North American pork industry. Canada's pork industry is export-oriented, and the United States represents a key market for both live pigs and pork. Pork value chain stakeholders include input suppliers, pig producers, transportation companies, slaughter plants, wholesalers, and retailers. There are three overriding areas of concern for the Canadian pork industry with respect to potential impacts of the current pandemic (COVID-19). The first is Canada/US trade and the ability to continue exporting Canadian live pigs and pork to the United States. The second is labor and the impact of potential absenteeism on all sectors of the pork value chain. The third is global trade, because Canada's pork industry relies heavily on exporting pork to markets around the world. 相似文献
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This study provides a long-run analysis of the impacts of brand and generic advertising on pork revenues. The existence of a feedback relationship between pork revenues and pork advertising is investigated. The results suggest that a short-run feedback relationship exists between total pork advertising and revenues, but not for revenues and generic pork advertising. Long-run analysis shows that revenues significantly affect both advertising measures. However, no evidence of feedback relationships was found in the long run. Results shed light on the nature of strategic responses by pork advertisers to changes in advertising by beef and poultry. Specifically, the results provide evidence that pork advertisers are accommodating to beef's changes, but respond competitively to poultry's. 相似文献
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This study provides details of emerging opportunities for U.S. pork exporters following the U.S.–China WTO Accession Agreement. The Agreement will enable the United States to gain unprecedented access to the Chinese pork market. The United States enjoys comparative advantages in producing hogs at lower cost, higher quality, and greater efficiency. Moreover, Chinese preference for pork is highly complementary to that of U.S. consumers. Therefore, U.S. pork exporters are expected to target primarily the Chinese variety meats market. Although China is expected to remain a surplus pork production nation, demographic shifts could provide additional opportunities for U.S. pork exporters to increase sales of more premium cuts for urban consumers in China. 相似文献
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Brian L. Buhr 《Review of Agricultural Economics》2004,26(2):266-279
Differentiation and branding of fresh pork products have created interest in the potential for swine producers to invest further up the pork supply chain to capture a greater share of the consumer's dollar. However, the ultimate success of producer-owned ventures will depend on their ability to identify market opportunities and execute merchandising strategies to maintain sales of a perishable and seasonally variable pork product in a commodity market environment. To better understand the competitive issues in pork marketing on a small scale, three firms already engaged in direct marketing of fresh pork products are examined and reported as case studies. 相似文献