299 research outputs found

    Weaning Age and Management Systems for Fall Born Beef Calves

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    Twenty-eight registered Angus and Hereford cows calved in September, 1970. The cows calved on pasture and remained on pasture until late November. From November 10 to December 28 the cows were bred for 1971 and started on a self-fed diet. The remaining 14, or one-half of the calves, were allowed to continue nursing the cows, but the calves also had access to calf creep with the same diet used for the weaned calves. At the start of the experiment the calves were randomly divided by sex, breed and age. At this time, December 30, 1970, the average age of all calves was 106 days and they averaged 218 lb. in weight

    Weaning Age and Management Systems For Fall Born Beef Calves

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    Twenty-five registered Angus, Hereford and Shorthorn cows calved in September, 1971. The cows calved on pasture and remained on pasture until early November. From November 12 to December 29, the cows were bred for 1972 fall calves. On December 29, 1971, one-half of the calves were weaned and started on a self-fed ration. The remaining one-half of the calves were allowed to continue nursing the cows, but the calves also had access to a calf creep feeder containing the same ration used for the weaned calves. At the start of the experiment the calves were randomly divided by sex, breed and age. At this time, December 29, 1971, the average age of all calves was 114 days and they averaged 257 lb. in weight

    Weaning Age and Management Systems for Fall Born Beef Calves

    Get PDF
    Seventeen registered Angus, Hereford and Shorthorn cows calved in September, 1972. The cows calved on pasture and remained on pasture until early November. From November 10 to December 29, the cows were bred for 1973 fall calves. On December 29, 1972, one-half of the calves were weaned and started on a self-fed ration. The remaining one-half of the calves were allowed to continue nursing the cows, but the calves also had access to a creep feeder containing the same ration used for the weaned calves. At the start of the experiment the calves were randomly divided by sex, breed and age. At this time, December 29, 1972, the average age of all calves was 115 days and they averaged 250 lb. in weight. The experiment was conducted over a 90-day winter feeding period which was initiated on December 29, 1972, and was completed on March 29, 1973. The early weaned calves made an average per head daily gain of 2.49 lb. over the 90-day period and the nursing calves gained 2.35 lb. daily. The early weaned calves averaged 470 lb. per head at 205 days of age and the nursing calves averaged 465 lb

    Weaning Age and Management Systems for Fall Born Beef Calves

    Get PDF
    Twenty-eight registered Angus and Hereford cows calved in September, 1970. The cows calved on pasture and remained on pasture until late November. From November 10 to December 28 the cows were bred for 1971 and started on a self-fed diet. The remaining 14, or one-half of the calves, were allowed to continue nursing the cows, but the calves also had access to calf creep with the same diet used for the weaned calves. At the start of the experiment the calves were randomly divided by sex, breed and age. At this time, December 30, 1970, the average age of all calves was 106 days and they averaged 218 lb. in weight

    Time and Tide : A Study of the Conflicting Concepts of Time of the Dakota Indian and Western Civilization

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    The Indian peoples of the Americas, as well as non-literate peoples around the world, have been swept or are being swept from their cultural moorings by their contacts with ‘white’ civilization. These cultures, whose values center around permanence and patience, have been engulfed in an expanding social order which exalts change. Impelled by its time oriented concepts of progress, opportunity, profit, speed, and efficiency, civilization’s contacts with familizational cultures have been uprooting, breaking, and crushing. The problem of this study shall be to define the Dakota concept of time, to distinguish it from that of Western civilization, and to discover the implications which their differences present to the personality and the culture pattern of the Dakota Indian. If it is possible to define the concept of time of each culture, it then becomes the problem to discover why cultures should have different concepts of time; why that of one culture should present difficulties to another culture; why the Dakota should find it difficult to learn the Western concept of time; and why the Dakota concept of time should continue when it involves the Indian in so many difficulties. If culture theory can be developed to account for these time problems, it should serve to analyze the conditions of culture conflict such as, resistance to change, disorganization, and assimilation. This analysis constitutes the conclusion of this study

    Systems of Producing Fat Yearlings for South Dakota

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    About twelve billion pounds of dressed beef and veal were produced in the United States in 1947 through the conversion of grassland crops into meat by cattle and these cattle lead all classes of American livestock in the consumption of grass and grassland crops. Grass usually represents the principal and cheapest feed for beef cattle. They utilize about one third of the permanent pastures and three fourths of the range areas. Pastures may be regarded as a costly source of feed only on highly productive farm lands, but their use in rotation with cultivated crops on such land is certain to continue and be expanded as a sound practice

    Winter Feeding Requirements for Beef Cows During Cold Weather Stress

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    In finishing rations for cattle and sheep, experimental data have shown that feed requirements increase when the weather is cold or windy. Relatively high priced proteins are wasted when a high energy feed is more suited for cattle under stress due to cold temperatures. Research has aided in furnishing winter feeding guidelines for finishing cattle, but very limited work has been done on winter feeding for pregnant beef cows. These requirements may vary due to stresses of relatively low weather temperatures. By collecting cow weights, calving and breeding data, the effects of varied winter cow rations can be evaluated

    Cara Michele McCone in a Senior Mezzo-Soprano Recital

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    This is the program for the senior mezzo-soprano recital of Cara Michele McCone. Ms. McCone was accompanied by Camille Brown on the piano. This recital took place on March 12, 2004, in the McBeth Recital Hall in the Mabee Fine Arts Center

    The MAST motional Stark effect diagnostic

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    A motional Stark effect (MSE) diagnostic is now installed and operating routinely on the MAST spherical tokamak, with 35 radial channels, spatial resolution of ∼2.5 cm, and time resolution of ∼1 ms at angular noise levels of ∼0.5°. Conventional (albeit very narrow) interference filters isolate π or σ polarized emission. Avalanche photodiode detectors with digital phase-sensitive detection measure the harmonics of a pair of photoelastic modulators operating at 20 and 23 kHz, and thus the polarization state. The π component is observed to be significantly stronger than σ, in reasonably good agreement with atomic physics calculations, and as a result, almost all channels are now operated on π. Trials with a wide filter that admits the entire Stark pattern (relying on the net polarization of the emission) have demonstrated performance almost as good as the conventional channels. MSE-constrained equilibrium reconstructions can readily be produced between pulses.This work was funded partly by the United Kingdom Engineering and Physical Sciences Research Council under Grant No. P/G003955 and by the European Communities under the contract of association between Euratom and CCFE

    Alfalfa Silage Effect of Storage Methods on Feeding Value and on Preservation of Nutrients

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    Feeding trials using beef cattle were conducted with baled alfalfa hay and with alfalfa silage stored in the stack, trench, and upright silo. Based upon feed costs at the time of storage, the average feed costs per 100 pounds of gain for the several experiments were as follows: baled hay, 18.70;uprightsilo,18.70; upright silo, 22.35; trench silo, 30.58;andstacksilo,30.58; and stack silo, 33.58. The greatly increased costs in the case of the trench and stack were the result of excessive fermentation and spoilage losses because air was not properly excluded. The chemical composition of the dry matter of the various silages was quite similar. However, the spoilage was considerably different in its composition from the edib]e silage. This was especially true where chemical determinations of digestibility were made, the values for the spoiled silage being very low. Dry matter and nutrient losses were determined on hay and the various silages for 1 year\u27s work. The amount of loss was largest when air was not properly excluded (stack and trench). This work emphasizes the need to provide storage for alfalfa silage of a type which will prevent exposure to air for satisfactory preservation of nutrients. In deciding what type of storage to use, the operator should consider this as well as the many other factors related to cost and convenience
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