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  • La Center (sternwheeler)

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    La Center was a small stern-wheel steamboat that operated from 1912 to 1931, mostly on the Lewis and Lake rivers in southwest Washington, on a route to and from Portland, Oregon along the lower Columbia and lower Willamette rivers.La Center was small compared to other sternwheelers of the Columbia River. However despite a number of accidents, including collisions and groundings, La Center earned a reputation as providing dependable transport for the Lewis River country to the Portland market.La Center was somewhat unusual in that it was originally fitted with a gasoline engine, and then about a year after construction, the gasoline engine was replaced with second-hand steam engines.

  • Cattle feeding

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    Different cattle feeding production systems have separate advantages and disadvantages. Most cattle in the US have a diet that is composed of at least some forage (grass, legumes, or silage). In fact, most beef cattle are raised on pasture from birth in the spring until autumn (7 to 9 months). Then for pasture-fed animals, grass is the forage that composes all or at least the great majority of their diet. Cattle fattened in feedlots are fed small amounts of hay supplemented with grain, soy and other ingredients in order to increase the energy density of the diet. The debate is whether cattle should be raised on diets primarily composed of pasture (grass) or a concentrated diet of grain, soy, corn and other supplements. The issue is often complicated by the political interests and confusion between labels such as "free range", "organic", or "natural". Cattle raised on a primarily forage diet are termed grass-fed or pasture-raised; for example meat or milk may be called grass-fed beef or pasture-raised dairy. However, the term "pasture-raised" can lead to confusion with the term "free range", which does not describe exactly what the animals eat.

  • Cattle grid

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    Typical design of a cattle grid in the Western US. A cattle grid on a country road in the Yorkshire Dales. Cattle grid on a railway line in northeastern New Mexico. Cattle grid at entrance ramp onto the Interstate Highway System in Nevada. A cattle grid – also known as a stock grid in Australia; cattle guard in American English; vehicle pass, Texas gate, or stock gap in the Southeastern United States; and a cattle stop in New Zealand English – is a type of obstacle used to prevent livestock, such as sheep, cattle, pigs, horses, or mules from passing along a road or railway which penetrates the fencing surrounding an enclosed piece of land or border. It consists of a depression in the road covered by a transverse grid of bars or tubes, normally made of metal and firmly fixed to the ground on either side of the depression, so that the gaps between them are wide enough for an animal's feet to enter, but sufficiently narrow not to impede a wheeled vehicle or human foot. This provides an effective barrier to animals without impeding wheeled vehicles, as the animals are reluctant to walk on the grates.

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