共查询到20条相似文献,搜索用时 156 毫秒
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景天科多肉植物和其他多肉植物相比,有着独特的特点和景观应用价值。对兰州市景天科多肉植物的繁殖、护理、管理和园林应用等进行了调查,为景天科多肉植物在兰州市的景观应用,提供了依据。 相似文献
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1. 网 箱 养 鱼品 质 下 降主要 原 因 1.1网 箱 人 工 养 殖 的 鱼较 野 生 捕 捞 上 市 时 间 短 ,导致 网 箱 养 的 鱼 肌 肉 中 的 肌 纤维 较 松 软 , 肌 肉 中 能 促 进 肌肉 产 生 香 、 鲜 美 的 有 关 氨 基酸 含 量 较 少 , 故 鱼 肉 香 鲜 味变 淡 ,肌 肉 松 软 。 1.2鱼 觅 食 、 避 害 活 动少 。 1.3人 工 配 合 饵 料 中 动物 性 蛋 白 含 量 较 少 。 1.4滥 用 药 物 饲 料 添 加剂 。 1.5不 良 水 环 境 、工 业 废水 、农 药 污 水 、饲 料 发 酵 腐 水都 使 水 产 品 质 下 降 ,并 含 有 有 害 物 质 ,对 人 体… 相似文献
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本文分析国内冷却肉的生产发展情况,探析生产发展历程,共分成热鲜肉、冷冻肉及冷却肉3个阶段.重点研究冷却肉生产技术研发进展,包括加工流程、胴体减菌、保鲜技术等. 相似文献
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A.S. Rutherford 《Agricultural Economics》1999,21(1):21-39
Recent structural changes in dietary patterns in Asia resulting from economic development are placing increasing pressure on the existing production systems in the region-particularly those systems producing ruminant meat, non-ruminant meat and milk. This has significant policy implications for the countries in the region in terms of self-sufficiency goals in these commodities and the associated inter-and intra-regional trade opportunities in the future. Forecasts of ruminant meat, non-ruminant meat and milk production and consumption for selected Asian countries between the years 2000 and 2010 revealed the following: China, Pakistan and Viet Nam are likely to be self-sufficient with respect to ruminant meat; Malaysia is likely to continue to be a net importer of ruminant meat; India and Malaysia will be more than self-sufficient with respect to non-runvinant meat with the converse being true for Pakistan; and India, Laos and Pakistan will be self-sufficient with respect to milk production with the possibility of Indonesia, Thailand and Cambodia becoming self-sufficient if the current trends continue. Structural changes in the early 1980s generally resulted in higher average annual growth rates of production-particularly in non-ruminant meat production. Thus forecasts of ruminant meat production and consumption by 2000 using the medium-term average annual growth rates for production present a more favourable outcome in terms of self-sufficiency for countries such as Bangladesh, the Philippines and Viet Nam but a less favourable outcome for countries such as Indonesia, Malaysia, Laos and India. Similar forecasts for non-ruminant meat indicated an improvement in the long-term non-ruminant self-sufficiency estimates for most cases-particularly for Bangladesh, China and Cambodia. Intensification and commercialisation of meat production systems have increased meat self-sufficiency in a number of countries but often at the expense of grain self-sufficiency. Given these trends, the impact of trade liberalisation measures on livestock production in the region and inter-and intra-regional trade of livestock commodities and grain is likely to be significant. 相似文献
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本文主要对肉制品冻干发酵剂相关内容进行分析,着重探究肉制品冻干发酵技术关键技术。对上述内容进行分析,有利于节省劳动力,提升生产效率,同时也能够为企业降低成本,提升肉制品冻干发酵剂质量和生产效率,可为相关企业提供借鉴。 相似文献
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肉制品是人们生活中经常食用的产品之一,富含人类生存所需的多种营养物质,但同时也是各种疾病传播的媒介。想要保证肉制品的质量,需要对肉制品生产加工环节的质量安全进行严格把控。本文简单分析了肉制品生产加工中的质量安全问题,提出了肉制品质量问题的解决办法,从温度控制、质量检测、加工管理和销售监测等环节进行细致剖析,指导肉制品生产加工,保障消费者的食品安全。 相似文献
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Price volatility and rational expectations in a sectoral framework commodity model: a multivariate GARCH approach 总被引:2,自引:0,他引:2
This article explores supply response models in a rational expectations framework with endogenous risk by using a multivariate generalized autoregressive conditional heteroskedasticity model with Cholesky decomposition. This approach allows the incorporation of price volatility as a risk factor into the supply response of a primary commodity sector that is composed of several markets of homogenous products. The model is applied to the Greek meat sector, which is composed of four major meat categories, that is, beef, lamb, pork, and broiler, and thus the model for the entire market includes supply and demand equations for all the four meat markets, which are estimated simultaneously. The empirical results confirm that price volatility is a significant risk factor in Greek meat production and also provide useful implications about the cost factors of production. Furthermore, the empirical findings show that the last reform of the Common Agricultural Policy seems to have had a negative effect on beef and lamb production in Greece. 相似文献
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The conventional gravity model is revised for a single commodity and applied to meat markets to determine factors affecting trade flows of meat. This study demonstrates that the gravity model for a single agricultural commodity can be parameterized more effectively by using time series and cross-section data rather than cross-section data alone. This study reveals that trade policies and subsidies used by exporting and importing countries, livestock production capacity in countries, and distances play an important role in determining trade flows of meat. Long-term agreements achieve the highest performance toward enhancing international meat trade. Import quotas and the hoof-and-mouth disease on beef greatly impair meat trade. 相似文献
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Wiebke Pirsich 《国际粮食与农业综合企业市场学杂志》2019,31(2):150-174
Several consumer studies have shown considerable market potential for sustainable meat products, however, their markets shares are still marginal. In Germany, the sustainable aspects “organic,” “local origin,” and “animal welfare” are of special interest. To obtain a precise overview of potential target groups for these meat categories and their choice of store format, 620 German consumers were surveyed on their attitudes toward sustainable meat production and their shopping behavior. First, target groups based on consumers’ attitudes were identified by cluster analysis, taking into account possible overlaps. Consumers were also clustered by their store format choice and their preferred type of meat packaging. A cross tabulation of the results then provided insights into which store format and type of meat packaging is preferred by the target groups for sustainable meat products. Due to overlaps found in the target groups, the existence of important subgroups was shown. Amongst the target groups, only a slight preference for unpackaged meat products was found. Basically, the offer of sustainable meat products appears of interest for all store formats, with particular emphasis on supermarkets. The results of this study can support producers and retailers developing new and tailored marketing strategies for sustainable meat products. 相似文献
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Hongbo Liu Kevin A. Parton Zhang‐Yue Zhou Rod Cox 《The Australian journal of agricultural and resource economics》2009,53(4):485-501
The remarkable economic changes occurring within China since 1978 have resulted in a striking alteration in food consumption patterns, and one marked change is the increasing consumption of meat. Given China’s large population, a small percentage change in per capita meat consumption could lead to a dramatic impact on the production and trade of agricultural products. Such changes have major implications for policy makers and food marketers. This paper concentrates on meat consumption patterns in the home in China. A censored linear approximate almost ideal demand system model was employed in the study, and major economic parameters were estimated for different meat items. Data used in this study were collected from two separate consumer surveys – one urban and one rural in 2005. 相似文献
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Raman Srivastava Gerrit-Willem Ziggers Lee Schrader 《Revue canadienne d'agroeconomie》1998,46(4):539-548
Pork constitutes about 45 percent of the world's total meat consumption. Recent trends indicate that pork consumption is likely to increase in future as well. The international pork industry is undergoing a structural and organizational change as a result of changes in the method of pork production and processing technology. This paper identifies a variety of pressures that are leading to these changes. One of the most important factors is the change in consumer demand patterns. Consumers now demand more specific product characteristics. In case of pork, the specificity of the product includes color and texture of the meat, origin of the meat, labeling information pertaining to nutritional contents, drug and chemical residues, and production methods used. In order to meet all these specific demands and to further reduce production costs, various stages of pork production have started to coordinate in many countries. The extent of vertical coordination varies both within and among the countries. This paper identifies the types of linkages and the methods of transaction(s) used between various stages of pork production in Canada, the Netherlands and the U.S. The paper also identifies the upcoming pressures for change and illustrates the analytical framework developed to compare coordination mechanisms that exist between stages of pork production in the three countries. The paper concludes that industrialization, globalization, and changes in consumer demand and preferences are resulting into massive structural and operational changes in the international pork industry. 相似文献