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1991

Kansas State University Libraries

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Articles 1 - 30 of 91

Full-Text Articles in Other Animal Sciences

Binding Agents For Low-Salt, Low-Fat, Restructured Beef Roasts: Connective Tissue Or Gelatin, P.B. Kenney, Donald H. Kropf, Curtis L. Kastner Jan 1991

Binding Agents For Low-Salt, Low-Fat, Restructured Beef Roasts: Connective Tissue Or Gelatin, P.B. Kenney, Donald H. Kropf, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Connective tissue, from the outside of three major chuck muscles, was evaluated for binding properties when incorporated either raw or following preheating into precooked, restructured beef. Food-grade gelatin was also evaluated as a binding agent. Adding 10% raw or preheated connective tissue increased (P<.05) instrumentally measured tensile strength and reduced (P<.05) juiciness perception. One percent gelatin reduced (P<.05) cook yields and increased (P<.05) tensile strength but not to the degree of 10% raw or preheated connective tissue. Preheating had minimal effects on improving connective tissue utility. Based on the improvement in bind and cook yields, use of connective tissue as a binder is feasible in manufacturing low-salt, precooked, restructured beef.

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Effect Of Feeding Rumen-Escape Lipid To Postpartum Beef Heifers, C.W. Peters, L.R. Corah, R.C. Cochran Jan 1991

Effect Of Feeding Rumen-Escape Lipid To Postpartum Beef Heifers, C.W. Peters, L.R. Corah, R.C. Cochran

Kansas Agricultural Experiment Station Research Reports

Feeding .25, .5, or 1 lb/d of rumen-escape lipid in a range supplement to beef heifers after calving resulted in increased calf weight gain and milk production at 70 d postpartum compared to control or feeding 2 lb daily. As level of rumen-escape lipid increased, plasma cholesterol and triglycerides also increased when measured after 14 and 28 d of lipid feeding. The interval from parturition to standing estrus generally was longer as level of rumen-escape lipid increased. It appears that intermediate levels (.25, .5, or 1 lb/d) of rumen escape lipid can enhance milk production and calf weight gain; however, …

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Validation Of Real-Time Ultrasound Technology For Predicting Fat Thicknesses And Ribeye Areas Of Brangus Bulls From Four Months To Two Years Of Age, D.N. Waldner, R.R. Schalles, W. Olson, P. Houghton, L.R. Corah, Michael E. Dikeman, John A. Unruh Jan 1991

Validation Of Real-Time Ultrasound Technology For Predicting Fat Thicknesses And Ribeye Areas Of Brangus Bulls From Four Months To Two Years Of Age, D.N. Waldner, R.R. Schalles, W. Olson, P. Houghton, L.R. Corah, Michael E. Dikeman, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

Sixty Brangus bulls were evaluated live with two real-time ultrasound instruments to estimate ribeye area (REA) and 12th rib fat thickness (FT) every 4 mo beginning at 4 mo and 12 mo of age, respectively, and continuing until 24 mo of age. At each evaluation period 10 bulls were slaughtered to determine actual REA and FT. Scanned mean FT was accurate (P<.05) at 16 mo and was not different (P=.09) from the actual mean FT. Scanned mean REA was accurate (P<.05) at 12 mo. Absolute differences between scanned and actual mean FT and REA were different (P<.05) from zero for all main effects. Increased level of operator (scanner) skill did not improve accuracy of FT or REA measurements, whereas increased level of interpreter (reader) skill improved accuracy of REA measurements. There was no difference (P>.05) between the two ultrasound units in accuracy of estimating FT or REA. Scanned measurements overestimated bulls with less than .20 in FT and greater than 13.6 in2 REA and underestimated bulls with more than .40 in. FT …

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Binding Agents For Low-Salt, Low-Fat, Restructured Beef Roasts: Fish Surimi And Beef Heart Or Skeletal Muscle, P.B. Kenney, Donald H. Kropf, Curtis L. Kastner Jan 1991

Binding Agents For Low-Salt, Low-Fat, Restructured Beef Roasts: Fish Surimi And Beef Heart Or Skeletal Muscle, P.B. Kenney, Donald H. Kropf, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Five percent fish surimi, unwashed or washed ground beef, and washed or unwashed beef hearts were evaluated in precooked, chunked and formed, restructured beef roasts to determine if they would increase bind in low-salt (0.2% NaCl) product. An industry-like product with 1.0% NaCl and 5% unwashed ground beef was prepared, as well as a product with 0.2% NaCl and no binder. Roasts without binder were comparable in texture and integrity to those prepared with binding agents. Washing ground heart improved the sensory traits, texture measured instrumentally, and oxidative stability of the resulting products. Color was more stable for roasts containing …

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Pregnancy Rates In Beef Cattle After Administration Of Gnrh Agonist 11 To 14 Days After Insemination, I. Rettmer, L.R. Corah, Jeffrey S. Stevenson Jan 1991

Pregnancy Rates In Beef Cattle After Administration Of Gnrh Agonist 11 To 14 Days After Insemination, I. Rettmer, L.R. Corah, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Pregnancy rates were assessed in suckled beef cows (n=145) and virgin beef heifers (n=606) of mixed breeding following an injection of either 100 or 200 μg of a GnRH agonist given once on d 11-14 after estrus and insemination. In heifers, the 100 μg dose improved (P<.08) pregnancy rates, based on rectal palpation of the uterus, and at both doses, based on actual calving dates. There was no effect of either dose on pregnancy rates of suckled cows, based on palpation results, but actual calving showed a 21% increase (P<.08) in pregnancy rates in cows treated with 100 μg of the GnRH agonist.

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Beef Safety - Current Research And Summary Of Progress, F. Cunningham, Melvin C. Hunt, Curtis L. Kastner, Donald H. Kropf, B. Larson, D. Schafer, D. Simms, S. Smith, M. Vanier, Daniel Y.C. Fung Jan 1991

Beef Safety - Current Research And Summary Of Progress, F. Cunningham, Melvin C. Hunt, Curtis L. Kastner, Donald H. Kropf, B. Larson, D. Schafer, D. Simms, S. Smith, M. Vanier, Daniel Y.C. Fung

Kansas Agricultural Experiment Station Research Reports

Beef and beef products are significant parts of a balanced diet in the U.S. and major parts of the Kansas economy. Therefore, these products must be carefully processed, handled, and monitored for microbial quality to ensure safety for the consumer. KSU Animal Sciences research is designed to accomplish this end and to enhance demand for beef. We have made a major commitment to beef safety research. Moreover, results with beef are generally applicable to other meats.

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Breed And Management System Effects On Feedlot Performance And Carcass Traits, D.T. Hickok, R.R. Schalles, D.E. Franke, Michael E. Dikeman Jan 1991

Breed And Management System Effects On Feedlot Performance And Carcass Traits, D.T. Hickok, R.R. Schalles, D.E. Franke, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Eighty nine steers with different proportions of Angus, Hereford, Charolais, Brahman, and Gelbvieh breeding from rotational and terminal crossbreeding systems were produced in Louisiana and finished at KSU. Half of each breed group was placed in the feedlot at weaning (calves) and the other half as yearlings. Half of the each group was slaughtered at a low (0.3-0.4 in.), and the other half at high (0.5 - 0.6 in.) fat thickness. As percentage of Charolais and Gelbvieh breeding increased, feedlot performance improved. As percentage of Charolais, Gelbvieh, and Angus increased, carcass desirability improved. Steers started on feed at weaning were …

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Increasing Levels Of Grain Supplementation For Intensive-Early Stocked Steers: Three-Year Summary, R.C. Cochran, Robert T. Brandt Jr., E.S. Vanzant, E.M. Clary, Clenton E. Owensby Jan 1991

Increasing Levels Of Grain Supplementation For Intensive-Early Stocked Steers: Three-Year Summary, R.C. Cochran, Robert T. Brandt Jr., E.S. Vanzant, E.M. Clary, Clenton E. Owensby

Kansas Agricultural Experiment Station Research Reports

During the initial 3 years of a 4-year experiment, average daily gain tended to increase in direct proportion to increasing levels of grain sorghum supplementation (2.3, 2.5 and 2.7 lb gain per day for the control and 2 and 4 lb supplement per day, respectively). The amount of grass remaining in the pastures at the end of the growing season (October 1) was greater in each of the 3 years when cattle were supplemented at 4 lb/day. During the 2 years (1989 and 1990) that feedlot performance was monitored, level of supplementation for grazing steers did not influence subsequent feedlot …

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Seasonal Variation In Quality Of Grazed Forage During A Drought Year, R.C. Cochran, E.S. Vanzant Jan 1991

Seasonal Variation In Quality Of Grazed Forage During A Drought Year, R.C. Cochran, E.S. Vanzant

Kansas Agricultural Experiment Station Research Reports

Concentration of fiber in the forage selected by beef steers grazing bluestem range during a drought year (1989) was highest in the winter but declined substantially in the spring and remained fairly constant throughout summer. Conversely, crude protein concentration was lowest during the winter, peaked during the spring, declined through early summer, but increased in the late summer before declining during the fall. Precipitation was well below normal in all months except August, September, and October, which were above normal. Improvement in forage quality during those months was probably due to stimulation of late-season forage growth in response to elevated …

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Dehydrated Alfalfa Pellets And Soybean Meal/Grain Sorghum In Step-Up Winter Supplementation Programs For Spring-Calving Beef Cows, E.S. Vanzant, R.C. Cochran, L.R. Corah, G.H. Kiracofe Jan 1991

Dehydrated Alfalfa Pellets And Soybean Meal/Grain Sorghum In Step-Up Winter Supplementation Programs For Spring-Calving Beef Cows, E.S. Vanzant, R.C. Cochran, L.R. Corah, G.H. Kiracofe

Kansas Agricultural Experiment Station Research Reports

The performance response to a stepwise increase in the level of supplement fed to cows across the winter supplementation period was studied by feeding 112 Hereford x Angus cows the following treatments: dehydrated alfalfa pellets (DEHY) or soybean meal/grain sorghum (SS), each either level-fed (constant daily amount from December 1 to calving) or fed in a step-up program (low level from December 1 to 30; moderate level from December 31 to January 29; high level from January 30 to calving; avg = amount fed with level-feeding). Cow weight and condition changes and calf performance were favored by the step-up supplementation …

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Periparturient Changes In Intake, Rumen Capacity, And Selected Blood Metabolites In Beef Cows, T.A. Stanley, R.C. Cochran, D.L. Harmon, E.S. Vanzant Jan 1991

Periparturient Changes In Intake, Rumen Capacity, And Selected Blood Metabolites In Beef Cows, T.A. Stanley, R.C. Cochran, D.L. Harmon, E.S. Vanzant

Kansas Agricultural Experiment Station Research Reports

Four, ruminally cannulated, Hereford x Angus cows were used to study factors associated with feed intake patterns around parturition. Feed intake during the final trimester of gestation was relatively stable, in spite of a noticeable decrease in ruminal capacity. Postpartum feed intake appeared to increase, as did ruminal capacity. Blood progesterone fell after parturition, whereas estradiol did not change except for a large rise around parturition. Some plasma metabolites measured differed before and after calving; however, magnitude and patterns of change do not suggest a direct relationship with intake.

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Effects Of Hybrid And Maturity At Harvest On Agronomic Performance Of Corn For Silage, R. Suazo, R.N. Sonon, L. Pfaff, J.T. Dickerson, K.K. Bolsen Jan 1991

Effects Of Hybrid And Maturity At Harvest On Agronomic Performance Of Corn For Silage, R. Suazo, R.N. Sonon, L. Pfaff, J.T. Dickerson, K.K. Bolsen

Kansas Agricultural Experiment Station Research Reports

Twelve, commercial, corn hybrids were grown under irrigated conditions in 1990 and evaluated for agronomic and silage characteristics at three stages of maturities (1/2 milk line, black layer, and 7 days post-black layer). Time to mid-anthesis and mid-silk ranged from 62 to 68 and 65 to 70 days, respectively, and plant height ranged from 78 to 98 inches. Whole-plant dry matter (DM) content and whole-plant DM and grain yields for the 12 hybrids ranged from 23.6 to 53.7 %, 6.1 to 9.6 tons of DM per acre, and 60 to 170 bushels per acre, respectively, over the three maturities. Whole-plant …

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Top Spoilage Losses In Horizontal Silos In Western Kansas, J.T. Dickerson, G. Ashbell, L. Pfaff, K.K. Bolsen, B.E. Brent, J.E. Bradford, R.L. Smith Jan 1991

Top Spoilage Losses In Horizontal Silos In Western Kansas, J.T. Dickerson, G. Ashbell, L. Pfaff, K.K. Bolsen, B.E. Brent, J.E. Bradford, R.L. Smith

Kansas Agricultural Experiment Station Research Reports

The top 3 feet from 30 horizontal silos was sampled at three depths to determine top spoilage losses, using ash content as an internal marker. When compared to face samples, corn and forage sorghum silages exhibited similar additional organic matter (OM) losses in the top 18 inches. In the top 18 inches, covering silage reduced spoilage losses of OM from 41 to 27 percentage units compared to uncovered counterparts. Covering corn silage reduced spoilage losses of OM from 49 to 31 and 9 to 1 percentage units in the top and second 18 inches, respectively. Similar reductions in OM losses …

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Rate And Extent Of Top Spoilage Losses Of Alfalfa Silage Stored In Horizontal Silos, J.T. Dickerson, Y. Niwa, K.K. Bolsen, B.E. Brent, C. Lin, J.E. Bradford Jan 1991

Rate And Extent Of Top Spoilage Losses Of Alfalfa Silage Stored In Horizontal Silos, J.T. Dickerson, Y. Niwa, K.K. Bolsen, B.E. Brent, C. Lin, J.E. Bradford

Kansas Agricultural Experiment Station Research Reports

Effects of covering, time, and depth from the surface on the rate and extent of top spoilage losses in alfalfa silages stored in horizontal silos were studied under pilot- and farm-scale conditions. Covering silages increased silage DM and nutrient recoveries, regardless of time or depth from the original surface, when compared to uncovered counterparts. Treatment x location x time interactions (P<.001) were observed for pH, lactic acid, and DM recovery in uncovered silages. By week 2 post-ensiling, significant deterioration had occurred in the top foot of uncovered silages, as evidenced by higher pH (7.36) and lower lactic acid (2.1% of the silage DM) and DM recoveries (85.6% of the DM ensiled). After week 4 post-ensiling, significant deterioration had occurred in the second foot from the surface, and it continued into the third foot after week 7. These data indicate that protecting the silage stored in the top 3 ft of horizontal silos immediately after filling should greatly increase storage efficiency.

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Comparison Of Synovex-S® And Steer-Oid® In Finishing Yearling Steers, Robert T. Brandt Jr., S.J. Anderson, J.K. Elliott Jan 1991

Comparison Of Synovex-S® And Steer-Oid® In Finishing Yearling Steers, Robert T. Brandt Jr., S.J. Anderson, J.K. Elliott

Kansas Agricultural Experiment Station Research Reports

Synovex-S (SS) and STEER-oid (SO) were compared in a 122-d finishing study. No differences were observed over the entire study for animal performance or carcass traits. However, in the final period (d 91-122), steers implanted with SO gained 8.4% faster (P=.17) and 8.7% more efficiently (P=.10) than steers implanted with SS, suggesting that estradiol payout in this period was less diminished for SO implants. The importance of this finding is unknown, because it is generally recommended that steers fed for longer periods of time be reimplanted midway through the finishing period to maintain maximal implant response.

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Timing Of Trenbolone Acetate Implants On Performance, Carcass Characteristics, And Beef Quality Of Finishing Steer Calves, G. L. Huck, Robert T. Brandt Jr., D.D. Simms, Gerry L. Kuhl, Michael E. Dikeman Jan 1991

Timing Of Trenbolone Acetate Implants On Performance, Carcass Characteristics, And Beef Quality Of Finishing Steer Calves, G. L. Huck, Robert T. Brandt Jr., D.D. Simms, Gerry L. Kuhl, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Angus and Angus-cross calves (632 lb) were utilized in a finishing study to evaluate the effects of implanting with estradiol and progesterone (Synovex-S®) and(or) trenbolone acetate (Finaplix®) on performance of finishing steers. Over the entire finishing period (117 d), implanted steers had higher (P<.05) daily gains and were more efficient than nonimplanted steers. Carcasses from implanted cattle had heavier (P<.05) hot weights and larger (P<.05) ribeye areas. Steers implanted with Finaplix had larger (P<.05) ribeye areas than those implanted with Synovex only. Marbling scores and quality grades were not affected by implant treatments. Rib (9-10-11) sections from implanted steers were heavier (P<.05) as a result of both heavier (P<.05) bone and soft tissue weights. However, no differences in percentages of protein, fat, and moisture were detected by proximate analysis of the soft tissue. Concomitant use of Finaplix with Synovex-S did not affect performance of Angus and Anguscrossed steer calves.

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Monensin Levels In A Steam-Flaked Milo Finishing Diet With 4% Added Fat, Robert T. Brandt Jr., S.J. Anderson, J.K. Elliott Jan 1991

Monensin Levels In A Steam-Flaked Milo Finishing Diet With 4% Added Fat, Robert T. Brandt Jr., S.J. Anderson, J.K. Elliott

Kansas Agricultural Experiment Station Research Reports

Response to monensin (Control, 12.5, or 25 g/ton, air dry basis) by yearling steers fed a diet with 4% added fat was evaluated. For the entire study (104 d), daily gain, feed consumption and feed efficiency were unaffected (P>.25) by monensin. These results are in general agreement with some of our previous reports of diminished animal response to ionophores in fat-supplemented finishing diets. No adverse effects on animal health have been observed in our studies. However, whether withdrawing ionophores from finishing rations with 3.5-4% fat will affect the incidence of digestive upsets in commercial applications is not clear.

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Effects Of Supplemental Ground Grain Sorghum During Grazing Of Endophyte-Infected Tall Fescue On Grazing And Subsequent Feedlot Performance Of Steers, A.S. Freeman, K.P. Coffey Jan 1991

Effects Of Supplemental Ground Grain Sorghum During Grazing Of Endophyte-Infected Tall Fescue On Grazing And Subsequent Feedlot Performance Of Steers, A.S. Freeman, K.P. Coffey

Kansas Agricultural Experiment Station Research Reports

Sixty-three crossbred steers (740 lb BW) were used to evaluate the effects of energy supplementation during grazing of endoplyte-infected tall fescue and on their subsequent feedlot performance. Grazing ADG was .53 lb/d for control (no supplementation) vs. .81 and 1.21 lb/d with .25% and .5% of BW as ground sorghum (GS), respectively. Grazing supplementation did not affect (P>.10) feedlot performance. Steers receiving .25% GS were 2.3% and 6.2% more efficient (P<.07) during the feedlot phase than 0% and .5% GS steers, respectively. The .5% GS steers were 3.8% less efficient (P<.07) during the feedlot phase than the 0% GS steers. Steers receiving grazing supplementation had increased (P<.07) adjusted backfat measurements and less desirable (P<.02) yield grades than non-supplemental controls. Supplementing steers grazing endophyte-infected fescue at .25% of BW with ground grain sorghum improved feedlot feed conversion compared to no supplementation and supplementing at .5% BW.

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Supplementation Of Ammoniated Wheat Straw In Wintering Diets Of Gestating Beef Cows, T.J. Beck, D.D. Simms, Robert T. Brandt Jr., R.C. Cochran, Gerry L. Kuhl Jan 1991

Supplementation Of Ammoniated Wheat Straw In Wintering Diets Of Gestating Beef Cows, T.J. Beck, D.D. Simms, Robert T. Brandt Jr., R.C. Cochran, Gerry L. Kuhl

Kansas Agricultural Experiment Station Research Reports

During two winters, 96 beef cows in late gestation were utilized in 60-day precalving feeding trials to evaluate supplementation for cows fed ammoniated wheat straw. Treatments included: control--mineral supplement only (C), 3 lbs milo + mineral (3M), 6 lb milo + mineral (6M), and 2.75 lb milo + .75 lb soybean meal + mineral (SBM). 3M increased (P<.05) cow gain over control but body condition changes were similar. 6M and SBM resulted in similar gains and body weight changes, which were higher than those of cows receiving either C or 3M. Birth weight of calves, percent cycling at the start of breeding, and percent pregnant after a 60-day breeding season were not affected by treatment. Natural protein appears to be a major limiting nutrient in cows fed ammoniated wheat straw.

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Influence Of Supplemental Fat And Monensin Plus Tylosin On Performance And Carcass Traits Of Finishing Steers, Robert T. Brandt Jr., J.K. Elliott, Tiruvoor G. Nagaraja Jan 1991

Influence Of Supplemental Fat And Monensin Plus Tylosin On Performance And Carcass Traits Of Finishing Steers, Robert T. Brandt Jr., J.K. Elliott, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Interactions between supplemental fat (3.5%) and monensin plus tylosin (25 plus 10 g/ton, respectively) on animal performance and carcass traits were evaluated in a 125-d finishing trial. Interactions on feed consumption (P=.07) and feed efficiency (P=.11) suggested that the ionophore response was diminished in the presence of supplemental fat. Steers fed monensin plus tylosin had a lower (P=.005) incidence of liver abscesses whether fat was fed or not, indicating that supplemental fat had no effect on tylosin activity.

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Runoff Control From Dirt Lots (1991), Joseph P. Harner, James P. Murphy Jan 1991

Runoff Control From Dirt Lots (1991), Joseph P. Harner, James P. Murphy

Kansas Agricultural Experiment Station Research Reports

A recent water quality survey assessment found nonpoint source pollution problems in a majority of Kansas surface waters - 85% of the monitoring sites were impaired by nutrients, 60% of the sites by bacteria, 55% by suspended solids and/or minerals, and 40% by oxygen-demanding substances. Swine producers have the responsibility to maintain the quality of ground or surface water near their production units. Outdoor dirt lots for confinement of swine are often overlooked as an area needing facilities for water pollution control.; Swine Day, Manhattan, KS, November 21, 1991

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Effects Of Supplementation Of Nursery Diets With An Essential Fatty Acid On Immunity In Artificially Reared Pigs (1991), D S. Mcvey, G S. Elliot, G A. Kennedy, M M. Chengappa, N V. Anderson, D A. Schoneweis, M M. Hervey, S M. Cowan, Joe D. Hancock Jan 1991

Effects Of Supplementation Of Nursery Diets With An Essential Fatty Acid On Immunity In Artificially Reared Pigs (1991), D S. Mcvey, G S. Elliot, G A. Kennedy, M M. Chengappa, N V. Anderson, D A. Schoneweis, M M. Hervey, S M. Cowan, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Twenty four pigs were weaned immediately at farrowing, reared artificially for 21 d, and then used in a 35-d nursery experiment to determine the effects of essential fatty acid deficiency on immune function. Treatments were: 1) a semi-purified diet deficient in essential fatty acids and 2) diet 1 with 2% added linoleic acid. Conversion of linoleic acid to linolenic and then arachidonic acid is a normal step in fatty acid metabolism. Metabolites of arachidonic acid are thought to have a role in mediating immune function. On d 28 of the experiment, pigs were orally dosed with Salmonella choleraesuis to challenge …

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The Interactive Effects Of Pst And Salbutamol On The Lysine Requirement Of Finishing Pigs (1991_, J A. Hansen, J L. Laurin, Jim L. Nelssen, Robert D. Goodband Jan 1991

The Interactive Effects Of Pst And Salbutamol On The Lysine Requirement Of Finishing Pigs (1991_, J A. Hansen, J L. Laurin, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A metabolism study was conducted to evaluate the interactive effects of daily pST injections and the β-agonist salbutamol on the lysine requirement of finishing pigs based on nitrogen retention. Sixteen finishing pigs (137 lbs initially) were exposed to one of four biological treatments for 32 d. These treatments were: 1) non-treated control; 2) 4 mg/d pST; 3) 2.75 ppm of dietary salbutamol; 4) both salbutamol and pST. Pigs were kept on the same biological treatment and offered one of four diets for an 8 d period in a Latin square arrangement. Diets were formulated to contain .8, 1.2, 1.6, and …

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The Influence Of Dietary Threonine On Growth Performance And Carcass Characteristics Of Pst-Treated Finishing Pigs (1991), J L. Laurin, J A. Hansen, B R. Schricker, Robert D. Goodband, Jim L. Nelssen Jan 1991

The Influence Of Dietary Threonine On Growth Performance And Carcass Characteristics Of Pst-Treated Finishing Pigs (1991), J L. Laurin, J A. Hansen, B R. Schricker, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Eighty crossbred barrows (initial wt = 131 lb) were utilized to determine the dietary threonine requirement of finishing pigs injected with porcine somatotropin (PST). Barrows were injected daily in the extensor muscle of the neck with either 4 mg pST or a placebo and fed diets containing either .45, .55, .65, or .75% threonine. All other amino acids, vitamins, and minerals were calculated to be at least double current requirements for finishing pigs so as not to limit performance. Pigs were housed in an open-sided building with two pigs per pen and five replications of the eight treatments. Feed and …

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Use Of Recombinant Bovine Cytokines In Pigs Vaccinated And Challenged With Streptococcus Suis (1991), Frank Blecha, D N. Reddy, C G. Chitko-Mckown, M M. Chengappa, D S. Mcvey, Robert D. Goodband, Jim L. Nelssen Jan 1991

Use Of Recombinant Bovine Cytokines In Pigs Vaccinated And Challenged With Streptococcus Suis (1991), Frank Blecha, D N. Reddy, C G. Chitko-Mckown, M M. Chengappa, D S. Mcvey, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to determine the adjuvanticity of recombinant bovine interleukin-1β (rBoIL-1β) and recombinant bovine interleukin-2 (rBoIL-2) administered in conjunction with a single S. suis vaccination in pigs. Sixty, 4-wk-old pigs were allotted to 8 groups: 1) nonvaccinated controls; 2) vaccinated controls; 3) rBoIL-Iβ, 100 ng/kg; 4)rBoIL-lβ, 1000 ng/kg; 5) rBoIL-1β, 10,000 ng/kg; 6) rBoIL-2, 2.5 µg/kg; 7) rBoIL-2, 25 µg/kg; and 8) rBoIL-2, 250 µg/kg. All pigs (except group 1) were vaccinated on d 0 with a commercial S. suis vaccine (serotypes 1 and 2). At vaccination, pigs were injected intramuscularly with their respective cytokine treatments. Pigs received …

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Effects Of Porcine Somatotropin Administration And Its Duration On Growth Performance And Carcass Characteristics Of Finishing Swine Fed To 280 Lb (1991), M E. Johnston, B R. Schricker, Jim L. Nelssen, Robert D. Goodband, Robert H. Hines, Donald H. Kropf Jan 1991

Effects Of Porcine Somatotropin Administration And Its Duration On Growth Performance And Carcass Characteristics Of Finishing Swine Fed To 280 Lb (1991), M E. Johnston, B R. Schricker, Jim L. Nelssen, Robert D. Goodband, Robert H. Hines, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

One hundred eight barrows with an initial weight of 120 lb were utilized to determine the effects of porcine somatotropin (PST) administration period and duration on growth performance and carcass characteristics of finishing swine fed to 280 lb. Pigs were injected daily in the extensor muscle of the neck with either a placebo or 4 mg pST. Treatments included: (A) placebo injection from 120 to 280 lb; (B) pST injection from 120 to 280 lb; (C) pST injection from 120 to 230 lb and then placebo injection from 230 to 280 lb; (D) placebo injection from 120 to 230 lb …

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Effects Of Daily Porcine Somatotropin Administration On The Lysine Requirement Of Growing Pigs (1991), G E. Fitzner, T L. Weeden, K G. Friesen, Robert H. Hines, Jim L. Nelssen, Robert D. Goodband, Donald H. Kropf, Joe D. Hancock Jan 1991

Effects Of Daily Porcine Somatotropin Administration On The Lysine Requirement Of Growing Pigs (1991), G E. Fitzner, T L. Weeden, K G. Friesen, Robert H. Hines, Jim L. Nelssen, Robert D. Goodband, Donald H. Kropf, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

One-hundred twenty crossbred barrows initially weighing 68.7 lb were used to determine the lysine requirement of growing pigs injected with 5 mg/d porcine somatotropin (PST) during a 5-wk growth trial. Pigs received one of six levels of dietary lysine (.7, 1.1, 1.5, 1.9,2.3, or 2.7%) and were injected daily with either 5 mg pST or placebo. During the 5 wk trial, pST-injected pigs had increased average daily gain (ADG), decreased average daily feed intake (ADFI), and improved feed conversion (F/G) compared with placebo-injected pigs. With increasing dietary lysine, ADFI of pigs injected with both pST and placebo was reduced. Pigs …

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Effect Of Fat Source And Level On Finishing Pig Performance (1991), David A. Nichols, Joe D. Hancock, Jim L. Nelssen, Robert H. Hines, Donald H. Kropf Jan 1991

Effect Of Fat Source And Level On Finishing Pig Performance (1991), David A. Nichols, Joe D. Hancock, Jim L. Nelssen, Robert H. Hines, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Two hundred and forty finishing pigs were utilized to evaluate the effect of fat source and level on growing pig performance and carcass characteristics. Pigs were fed a milo-soybean meal diet balanced on a constant energy:lysine and energy:protein ratio. Dietary treatments were: 1) control; 2,3,4) 2.5, 5.0, or 7.5% added soybean oil; 5 and 6) 5.0 or 7.5% added tallow. In comparing pigs fed soybean oil to tallow, there were no significant effects on feed intake, average daily gain, or feed to gain ratio. Soybean oil additions compared to tallow resulted in carcasses with significantly more average backfat as well …

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Effects Of Porcine Somatotropin Dosage And Lysine Level On Growth Performance Of Growing Pigs (1991), G E. Fitzner, T L. Weeden, B R. Schricker, Robert H. Hines, Jim L. Nelssen, Robert D. Goodband, Joe D. Hancock Jan 1991

Effects Of Porcine Somatotropin Dosage And Lysine Level On Growth Performance Of Growing Pigs (1991), G E. Fitzner, T L. Weeden, B R. Schricker, Robert H. Hines, Jim L. Nelssen, Robert D. Goodband, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Eighty crossbred barrows initially weighing 70.5 lb were used in a 5 wk trial to determine the optimum dosage of porcine somatotropin (PST) required to promote maximum growth response in growing pigs fed diets containing either 1.0 or 2.0% lysine. Pigs received a daily injection of placebo or 2, 4, or 8 mg pST in combination with one of two experimental diets containing either 1.0 or 2.0% dietary lysine. Increasing the dosage of pST of pigs fed both diets resulted in an increase in average daily gain (ADG), a reduction in average daily feed intake (ADFI), and an improvement in …

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Extrusion Of Sorghum, Soybean Meal, And Whole Soybeans Improves Growth Performance And Nutrient Digestibility In Finishing Pigs (1991), Terry L. Gugle, Robert H. Hines, Joe D. Hancock Jan 1991

Extrusion Of Sorghum, Soybean Meal, And Whole Soybeans Improves Growth Performance And Nutrient Digestibility In Finishing Pigs (1991), Terry L. Gugle, Robert H. Hines, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

One hundred forty-four finishing pigs (124 lb avg initial wt) were used to determine the effects of extruding sorghum, soybean meal (SBM), and whole soybeans on growth performance and nutrient digestibility. Treatments were: 1) control diet with ground sorghum, SBM, and soybean oil; 2) diet 1 with the ground sorghum, SBM, and soybean oil blended and extruded; 3) sorghum and whole soybeans extruded separately and blended; and 4) sorghum and extruded soybeans blended and extruded together. Extrusion was in an Insta-Pro extruder. All diets were formulated to be equal in concentrations of metabolizable energy (ME) and lysine. Pigs fed diets …

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