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Food availability

Decreased production of yolk protein resulting from inhibition of either ovarian or liver function presents the fish with a similar choice to that resulting from decreased food availability. It can produce the same number of smaller eggs, or a smaller number of eggs of normal size, but the mechanism by which that choice is made is unclear. Since the decreased nutrient content of small eggs will result in smaller larvae with a decreased survival rate, the net result in both cases may be a... [Pg.39]

Essentially the answer is history, climate, culture and money Historically, people had to eat the food available locally, and this would be controlled by the local natural... [Pg.61]

The purpose of providing food is to feed the population. Previous concerns for world starvation have been abated in view of recent trends, albeit that pockets of starvation and inadequate nutrition exist. Increasing population without increasing food availability can lead to starvation or inadequate nutrition. [Pg.335]

Over the past 30 years, the world food production has grown faster than the population, the major basis of consumption. The world food production increased at an annual rate of 2.4% (grain production increased at 2.7%), while the world population increase is now less than 2% (9). Research and improved technologies have contributed to an increase in food availability, which will continue if an appropriate political, social, and economic environment exists. The world population, now at 5.5 billion, is predicted to be 10 billion in the last quarter of the next century (9) and will place greater demands on the production and processing of food. [Pg.335]

A representative sampling that reflects a food sample should be planned. In the case of analysis for the Food Composition Database, nationwide composite samples should be prepared. Consideration should be given, among other factors, to the major regions of the country, the different brands of processed foods available, and consumption in industrial and rural areas. ... [Pg.450]

The function of the digestive system is to make ingested food available to the cells of the body. Most ingested food is in the form of very large molecules that must be broken down by mechanical and biochemical processes into their smaller components (see Table 18.1). These smaller units are then absorbed across the wall of the digestive tract and distributed throughout the body. Not all ingested materials may be completely... [Pg.279]

The Action Plan notes, for example, that in Sweden farmers are encouraged to produce organic for its public good attributes even though they sell into a conventional food chain. The private benefits are reaped by consumers who have organic foods available to them, but private benefits should be subject to market rules. Given that any organic product embodies both these benefits, analysis of the market becomes very complex indeed. [Pg.80]

Cox, P. and Parish, W.E. 1991. Effects of refuge content and food availability on refuge-seeking behaviour in Cryptolestes ferrugineus (Stephens) (Coleoptera Cucujidae). J. Stored Prod. Res. 27. 135-139. [Pg.285]

Male Sprague-Dawley rats (200-250 g at the start of experimentation) are used. Each rat is individually housed in a polycarbonate cage and maintained on a 12-h light-dark cycle (lights on at 0700 h) with water and food available ad libitum. [Pg.241]

Conventional fertilizers are generally soluble, their ingredients directly available to plants. The organic way, on the other hand, relies on soil-dwelling creatures to make food available to plants. [Pg.18]

Economic Research Service (2007) US per capita food availability - sugar and sweeteners, WWW.ERS.USDA.gov (accessed 15 February 2008). [Pg.272]

They think locally and act locally, but their collective action produces global behavior. Take the relationship between foraging and colony size. Harvester ants constantly adjust the number of ants actively foraging for food, based on a number of variables overall colony size (and thus mouths needed to be fed) amount of food stored in the nest amount of food available in the surrounding area even the presence of other colonies... [Pg.365]

From this description it is clear that this new cell is a highly specialized feature and this rises an interesting question of what was the primary reason for development of such a cell in the fish, where bones are not resorbed and colonized by the hematopoiesis. There is no experimental answer to this question yet, but speculation on that subject should concentrate on other requirements for bone resorption that would be of an immediate necessity for the fish. Such other requirement is tooth eruption. Without teeth fish would be unable to eat most of the food available, and to defend itself, so their eruption is of critical importance for survival. With emergence of calcification of bones during their development teeth had it increasingly more difficult to erupt and this required development of mechanism to assist in this process. So the hypothesis based on this speculation is, that the osteoclasts emerged primarily to assist tooth eruption. [Pg.86]

For many years, and still, controlling available carbohydrate intake has been a cornerstone of diabetes management. However, in many foods available carbohydrate, measured as carbohydrate available in food analysis, is not quite the same as carbohydrate that is available in the gut in food as normally consumed. Glycemic response depends not only on the amount of potentially available carbohydrate consumed, but also on how rapidly it is digested, absorbed, and disposed of in the body, and that depends on a myriad of factors including food structure and the influence of other food components that vary in importance from food to food. [Pg.372]

The use of microcapsules can improve or enhance nutrition. The processing required to produce many of the food products used today and the long shelf needed to provide a variety of foods available far from the place where they were grown often results in the loss of nutritional value. The products are often restored to their natural nutritional values through the addition of vitamins, minerals and in some cases, proteins. [Pg.2]

The Bangladesh famine of 1974 occurred during a period when the amount of food available per person in that country was at a peak. It was unemployment, hoarding, and inflated food prices that drove millions to their death. [Pg.547]


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See also in sourсe #XX -- [ Pg.35 ]




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