Category: Research

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Resulting from cross-breeding a horse and a donkey, the mule influenced southeast Brazil’s economic development perhaps more so than any other domesticated animal; the mule served as the key transport vehicle during both Brazil’s 18th century gold era and 19th century coffee era. In enabling mining and agriculture products to traverse mountainous terrain to reach port cities near São Paulo and Rio de Janeiro, the mule played a central role in the region’s economic and ecological history. Although the mule has not been southeast Brazil’s primary transport method since the train’s arrival in the 1870s, rural and urban dwellers still employ the mule over short distances near two protected landmasses despite declining generational interest and use. More recently, with increasing leisure use as a companion animal, the mule stimulates tourism and local economic patterns via large gatherings while serving as a cultural symbol of Brazil’s patrimony.

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Technologies being used to produce nonhuman animals who are used for meat and dairy products are viewed by some people as meaningful. Two technologies receiving scrutiny in agriculture are beta agonists that are fed to food animals to improve weight gain and cloning animals to secure offspring with specific traits. The technologies enhance the productive capacities of animals so that fewer resources are needed to produce meat and dairy products. Yet consumers are not sure they want food products with beta agonist residues and that are produced from clones. In overseeing the safety of food products and animals, legislators and regulators in the United States (US) and European Union (EU) have developed contrasting provisions regarding the usage of these technologies. An evaluation of heuristics involving information and experiences with bovine spongiform encephalopathy and animal production technologies offers support in explaining the US’s and EU’s divergent provisions.