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Animal Sciences

Kansas State University Libraries

Kansas Agricultural Experiment Station Research Reports

2000

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Articles 91 - 100 of 100

Full-Text Articles in Life Sciences

Market Versus Formula-Derived Prices For Segregated Early-Weaned Pigs (2000), Kevin C. Dhuyvetter Jan 2000

Market Versus Formula-Derived Prices For Segregated Early-Weaned Pigs (2000), Kevin C. Dhuyvetter

Kansas Agricultural Experiment Station Research Reports

A formula for deriving the price of segregated early-weaned (SEW) pigs using prices of grain, soybean meal, and market hog was estimated based on return on investment being equal for all three phases of production—farrowing, nursery, and finishing. The USDA- reported SEW pig prices were compared with formula-derived prices. The level of correlation between these two series was sensitive to how prices of grain, soybean meal, and market hog were chosen. Using expected prices in the formula resulted in SEW prices that were correlated strongly with reported market prices. Using hindsight cash prices in the formula resulted in SEW formula …

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The Effect Of Long-Term Management Ofnative Grass Pastures On Steer Gains (2000), F.K. Brazle, Dale L. Lanham, Jeffrey L. Davidson Jan 2000

The Effect Of Long-Term Management Ofnative Grass Pastures On Steer Gains (2000), F.K. Brazle, Dale L. Lanham, Jeffrey L. Davidson

Kansas Agricultural Experiment Station Research Reports

Three hundred thirteen mixed breed steers (558 lb) were used to determine the effect of long-term management of native grass pastures on gain. Steers were allotted randomly to eight pastures previously grazed for 1/2 season (1 steer/2 acres from April to July 15, 81 days) or 3/4 season (1 steer/3 acres from April to August 15, 112 days) from 1990 to 1998. In 1999, all pastures were stocked at 1 steer/2 acres and grazed 83 days until July 15 or 16. The steers received free-choice mineral and were supplemented six times with 2 lb of 20% crude protein range cubes …

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Limiting Amino Acids For Holstein Steers Fed Soybean Hull-Based Diets (2000), R.H. Greenwood, Evan C. Titgemeyer Jan 2000

Limiting Amino Acids For Holstein Steers Fed Soybean Hull-Based Diets (2000), R.H. Greenwood, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

A study was conducted to determine the limiting amino acids for cattle fed soybean hullbased diets. Ruminally cannulated Holstein steers (335 lb) were maintained in metabolism crates, fed the same basal diet (73% soyhulls, 19% alfalfa), and given the same intraruminal infusions (400 g/day acetate to increase energy supply without increasing microbial protein supply). Steers were infused into the abomasum with a complete mixture of the 10 essential amino acids or the mixture with histidine; tryptophan; arginine; phenylalanine; or the three branched-chain amino acids (leucine, isoleucine, and valine) removed. Nitrogen retention was reduced by removal of either histidine or the …

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In Vitro Degradation Of Betaine By Ruminal Microbes (2000), C.A. Löest, C.K. Armendariz, Evan C. Titgemeyer Jan 2000

In Vitro Degradation Of Betaine By Ruminal Microbes (2000), C.A. Löest, C.K. Armendariz, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

An in vitro study was conducted to evaluate the degradation of betaine sources by rumen microbes. Five sources of betaine (anhydrous betaine, betaine-HCl, feed-grade betaine, lipidcoated betaine, and concentrated separator byproduct) were incubated in rumen fluid collected from steers fed grain- or forage-based diets. In vitro degradation of betaine was slower with the high roughage diet than the grain diet. Betaine from concentrated separator by-product was degraded most rapidly, but no large differences occurred among the other four sources. The disappearance of betaine from lipid-coated product indicates that it did not resist ruminal degradation. Although betaine from all sources was …

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Measuring The Finishing Performance Of Steers And Heifers (2000), Michael R. Langemeier, R. Jones, Gerry L. Kuhl Jan 2000

Measuring The Finishing Performance Of Steers And Heifers (2000), Michael R. Langemeier, R. Jones, Gerry L. Kuhl

Kansas Agricultural Experiment Station Research Reports

This study examined improvements in the finishing performance of steers and heifers from 1990 to 1998 by measuring the rate of technological change. The rates of technological change were 0.58% per year for finishing steers and 1.01% per year for finishing heifers. The relatively higher rate for heifers indicates that technological change over the study period favored the performance of heifers.

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Impacts Of Corn And Fed-Cattle Prices On Price Slides For Feeder Cattle (2000), Kevin C. Dhuyvetter, Ted C. Schroeder Jan 2000

Impacts Of Corn And Fed-Cattle Prices On Price Slides For Feeder Cattle (2000), Kevin C. Dhuyvetter, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Several important determinants need to be considered when analyzing price slides (priceweight relationships) for feeder cattle. The two most economically important determinants of price-weight slides are expected fed-cattle price and corn price. Price-weight slides increase notably when corn prices decline (i.e., the premium for light-weight calves increases as feed prices decrease). Likewise, when expected fed-cattle prices increase, price-weight slides increase. Knowing this information can help producers who forward contract feeder cattle, backgrounders making decisions regarding feeding calves to various weights, and producers making feeder cattle purchase decisions.

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Factors Influencing The Initiation Of Estrous Cycles And Expression Of Estrus In Beef Cows (2000), Jeffrey S. Stevenson Jan 2000

Factors Influencing The Initiation Of Estrous Cycles And Expression Of Estrus In Beef Cows (2000), Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Body condition, parity, and days postpartum at the onset of the breeding season determine the proportion of cows that initiated first postpartum ovarian activity and ovulated before the start of the breeding season. Hormonal treatments that included both GnRH and a source of progestin enhanced expression of estrus and led to greater pregnancy rates of suckled beef cows.

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A Survey On The Use Of Blade Tenderizers By Beef Fabrication Plants (2000), C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner Jan 2000

A Survey On The Use Of Blade Tenderizers By Beef Fabrication Plants (2000), C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

A questionnaire to determine the use of blade tenderizers in beef fabrication facilities was sent to 241 members of the North American Meat Processors Association (NAMP). Eighty-four percent of the 90 respondents used blade tenderizers. These subprimals were at least sometimes tenderized by the following percentages of respondents: tenderloins, 7.9; chuck cuts, 18; round cuts, 36; ribeyes, 38; strip loins, 56; and top sirloin butts, 62. If a processor blade-tenderized a particular cut, they tenderized a majority of their production for that cut, generally with multiple passes through the tenderizer. For example, the 62% of respondents who tenderized top sirloin …

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Raw Milk Quality: The Processor's Point Of View, Karen A. Schmidt Jan 2000

Raw Milk Quality: The Processor's Point Of View, Karen A. Schmidt

Kansas Agricultural Experiment Station Research Reports

Raw milk quality is important to the processor for many reasons, this quality can be assessed by several different tests. Quality tests are used to ensure that the raw milk meets legal USDA standards as well as some of the individual requirements of the processor. Although some quality tests can be done in a matter of minutes, others require up to several days to complete. Because milk quality deteriorates relatively quickly, it is important to concentrate on those tests that provide the greatest amount of information in the shortest time. This information then is extrapolated to assess the "actual raw …

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Silage Management: Important Practices Often Overlooked (2000), K.K. Bolsen, B.E. Brent, M.K. Siefers, M.E. Uriarte Jan 2000

Silage Management: Important Practices Often Overlooked (2000), K.K. Bolsen, B.E. Brent, M.K. Siefers, M.E. Uriarte

Kansas Agricultural Experiment Station Research Reports

Four important silage management practices that are in the control of livestock producers and that are sometimes poorly implemented or overlooked entirely include: inoculating, packing, sealing, and managing the feedout face.; Dairy Day, 2000, Kansas State University, Manhattan, KS, 2000;

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