Jon E.L. Day

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The food choice and intake of animals (including humans) has typically been studied using frameworks of learning and feeding motivation. When used in isolation such frameworks could be criticized because learning paradigms give little consideration to how new food items are included or excluded from an individual's diet, and motivational paradigms do not(More)
During the fasting month of Ramadan, Muslims abstain from food and drink from sunrise until sunset. This change of eating pattern provides an opportunity to investigate factors controlling hunger and thirst. A group of healthy Muslims (15 men and 26 women) living in Reading, U.K. made hourly ratings of their hunger, mood and thirst, and recorded their food(More)
A B S T R A C T This paper critically reviews the literature concerning environmental enrichment for weaner, grower and finisher pigs housed in intensive (indoor) production systems. The thesis of our review is that successful enrichment should meet four criteria of success: (1) it should increase species-specific behaviour, (2) it should maintain or(More)
Straw provided as a substrate allows pigs to use it as a recreational substrate, as a nutritional substrate and as a bedding material and, because of this, has been reported to improve the welfare of pigs. The aim of this study was to investigate whether different lengths of chopped straw bedding would achieve similar enhancements in pig welfare as those(More)
An ultrastructural, immunohistochemical, and functional study was conducted on cultured bovine meshwork cells. Particular emphasis was placed on the organization of the cytoskeleton, and the cells were viewed either as whole cells or following detergent extraction. For ultrastructural examination, several modes of viewing were adopted, including a detector(More)
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