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Kansas Agricultural Experiment Station Research Reports

1998

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Articles 1 - 30 of 112

Full-Text Articles in Life Sciences

Effects Of Increasing Amounts Of Supplemental Soybean Meal On Intake And Digestibility Of Tallgrass-Prairie Hay, C.P. Mathis, R.C. Cochran, J.S. Heldt, B.C. Woods, Gerald L. Stokka, K. C. Olson Jan 1998

Effects Of Increasing Amounts Of Supplemental Soybean Meal On Intake And Digestibility Of Tallgrass-Prairie Hay, C.P. Mathis, R.C. Cochran, J.S. Heldt, B.C. Woods, Gerald L. Stokka, K. C. Olson

Kansas Agricultural Experiment Station Research Reports

Twenty ruminally fistulated beef steers free-choice access to prairie hay were used to evaluate the effect of increasing level of soybean meal (SBM) on forage intake and digestion. Forage intake, total organic matter intake, and organic matter digestion were enhanced with increasing level of SBM supplementation, although forage intake and digestion appeared to plateau at higher levels. The concomitant rises in intake and digestion as supplemental SBM increased resulted in an increase in total digestible organic matter intake, with the largest response to the initial increment of supplement.


Effects Of Various Carbohydrate Sources On The Utilization Of Low-Quality Tallgrass-Prairie Hay In Continuous Culture, J.S. Heldt, R.C. Cochran, C.P. Mathis, Evan C. Titgemeyer, Tiruvoor G. Nagaraja Jan 1998

Effects Of Various Carbohydrate Sources On The Utilization Of Low-Quality Tallgrass-Prairie Hay In Continuous Culture, J.S. Heldt, R.C. Cochran, C.P. Mathis, Evan C. Titgemeyer, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

We evaluated the effects of supplemental carbohydrate sources on the utilization of low- quality forage in continuous "artificial rumen" culture. Providing readily digestible carbohydrates (starch, glucose, and fiber) did not improve total diet digestion. In fact, starch and glucose depressed fiber digestion. Response to other simple sugars was variable.


Predicting Voluntary Forage Intake In Cattle, C.A. Bandyk, R.C. Cochran Jan 1998

Predicting Voluntary Forage Intake In Cattle, C.A. Bandyk, R.C. Cochran

Kansas Agricultural Experiment Station Research Reports

A large database was compiled of forage intake observations published during the past 20 years. Inputs included a wide range of factors believed to be related to voluntary intake. An analysis was designed to pinpoint which feed and animal characteristics were most valuable in predicting voluntary intake across a range of feeding situations and to compare the ability of different models to predict intake. Results emphasized the complexity of intake prediction. A wide range was evident in the variables included in the optimal models for predicting intake within different data subsets. In many cases, we observed that ratios between feed ...


Effects Of Processing Whole-Plant Corn Silage On Growth Performance And Nutrient Digestibility In Feedlot Cattle, T.J. Wistuba, M.K. Siefers, J.E. Turner, G.L. Huck, K.K. Bolsen, Matthew A. Young, Ronald V. Pope Jan 1998

Effects Of Processing Whole-Plant Corn Silage On Growth Performance And Nutrient Digestibility In Feedlot Cattle, T.J. Wistuba, M.K. Siefers, J.E. Turner, G.L. Huck, K.K. Bolsen, Matthew A. Young, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Sixty crossbred heifers and 12 crossbred steers were used to evaluate the effects of mechanically processing (crushing the kernels of) whole-plant corn silage on feedlot performance and nutrient digestibility. The three treatments were: preensiled processed, postensiled processed, and nonprocessed corn silages. Heifers fed the processed corn silages grew faster and were more efficient than those fed nonprocessed silage. Steers consuming the two processed silage rations had numerically higher DM, OM, NDF, and ADF digestibilities and significantly higher starch digestibilities than those fed the non- processed silage ration. These data suggest that processing whole-plant corn silage before or after ensiling has ...


Site Of Semen Deposition And Fertility In Lactating Beef Cows Synchronized With Gnrh And Pgf2Α, G.C. Lamb, K. E. Thompson, K. Anderson, David M. Grieger, Timothy G. Rozell, Jeffrey S. Stevenson Jan 1998

Site Of Semen Deposition And Fertility In Lactating Beef Cows Synchronized With Gnrh And Pgf2Α, G.C. Lamb, K. E. Thompson, K. Anderson, David M. Grieger, Timothy G. Rozell, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Our objective was to determine the effect of site of semen deposition on pregnancy rate in beef cows inseminated at a fixed time or after observed estrus. Cows were synchronized with a combination of gonadotropin-releasing hormone (GnRH) prostaglandin-F α (PGF). GnRH was injected 7 days before PGF (day 0; first of breeding season). The trial was conducted at two locations, one in Kansas (147 cows) and one in Colorado (313 cows). At each location, cows were assigned to be inseminated after observed estrus (ESTRUS-AI) or at a fixed time (TIMED-AI). Within these two groups, cows either were inseminated in the ...


Fusobacterium Necrophorum Leukotoxoid Vaccine For Prevention Of Liver Abscesses, S. Saginala, K.F. Lechtenberg, Kenneth E. Kemp, P.M. Hine, Tiruvoor G. Nagaraja, M. M. Chengappa Jan 1998

Fusobacterium Necrophorum Leukotoxoid Vaccine For Prevention Of Liver Abscesses, S. Saginala, K.F. Lechtenberg, Kenneth E. Kemp, P.M. Hine, Tiruvoor G. Nagaraja, M. M. Chengappa

Kansas Agricultural Experiment Station Research Reports

The efficacy of Fusobacterium necrophorum crude leukotoxoid vaccine to immunize and protect steers against experimentally induced liver abscesses was evaluated. The vaccine consisted of cell-free culture supernatant of a high leukotoxin-producing strain of F. necrophorum, inactivated with formalin and homogenized with an oil emulsion adjuvant. Vaccine was injected subcutaneously on days 0 and 21. Blood samples were collected weekly to monitor immune response. Three weeks after the second vaccination, steers were injected intraportally with F. necrophorum culture to induce liver abscesses. Three weeks later (day 63), steers were euthanatized and necropsied; livers were examined, and protection was assessed. Anti-leukotoxin antibody ...


Comparison Of Fusobacterium Necrophorum Isolates From Liver Abscesses, Ruminal Walls, And Ruminal Contents Of Feedlot Cattle, Sanjeev K. Narayanan, O. Okwumabua, J. Staats, Richard D. Oberst, Tiruvoor G. Nagaraja, M. M. Chengappa Jan 1998

Comparison Of Fusobacterium Necrophorum Isolates From Liver Abscesses, Ruminal Walls, And Ruminal Contents Of Feedlot Cattle, Sanjeev K. Narayanan, O. Okwumabua, J. Staats, Richard D. Oberst, Tiruvoor G. Nagaraja, M. M. Chengappa

Kansas Agricultural Experiment Station Research Reports

DNA finger printing (restriction fragment length polymorphism analysis) was employed to genetically compare Fusobacterium necrophorum isolates of liver abscesses, ruminal wall, and ruminal contents from the same animal. Fusobacterium necrophorum isolates from liver abscesses were genetically identical to the corresponding isolates from the ruminal wall in eight of nine animals tested. This genetic similarity between the isolates supports the hypothesis that F. necrophorum in liver abscesses originates from the ruminal wall.


Effect Of Tylosin On Ruminal Fusobacterium Necrophorum Population And Fermentation Products In Cattle Fed A High-Grain Diet, N. Wallace, Y. Sun, Kenneth E. Kemp, J.C. Parrott, Tiruvoor G. Nagaraja Jan 1998

Effect Of Tylosin On Ruminal Fusobacterium Necrophorum Population And Fermentation Products In Cattle Fed A High-Grain Diet, N. Wallace, Y. Sun, Kenneth E. Kemp, J.C. Parrott, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Tylosin feeding prevented the increase in Fusobacterium necrophorum population normally associated with the feeding of a high-grain diet. Also, tylosin appeared to moderate the ruminal fermentation during initial adaptation to a high-grain diet.


Effects Of Ruminally Protected Choline And Dietary Fat On Performance Of Finishing Heifers, D.J. Bindel, R.H. Wessels, C.A. Loest, James S. Drouillard, Evan C. Titgemeyer Jan 1998

Effects Of Ruminally Protected Choline And Dietary Fat On Performance Of Finishing Heifers, D.J. Bindel, R.H. Wessels, C.A. Loest, James S. Drouillard, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

A 120-day finishing study utilizing 318 heifers (753 lb initial body weight) examined the effects of ruminally protected choline in diets with no tallow or 2 or 4% of supplemental tallow. Heifers were fed a finishing diet based on a mix of steam-flaked and dry- rolled corn; encapsulated choline (20, 40, or 60 g/head/day, supplying 5, 10 or 15 g choline/head/day) was top-dressed to the diet or not added. Dry matter intake decreased linearly with inclusion of fat (P<.05) but was not affected significantly by addition of choline. Daily gains also decreased linearly (P<.05) with fat addition. Choline supplementation increased gain (linear, P<.1; qua dratic, P<.05), with the greatest increase occurring for the first 20 g increment encapsulated choline/day. Likewise, feed efficiency improved (P<.1) with supplemental choline. Again, the greatest response occurred for the first 20 g/day. Kidney, pelvic, and heart fat and yield grade both increased linearly (P<.1) with fat supplementation. The percentage of carcasses grading USDA Choice decreased (linear, P<.05; quadratic, P<.1) when choline was added at 60 g/day. Hot carcass weight, marbling, dressing percent, and 12th rib fat thickness were not affected significantly by either fat or choline. Ruminally protected choline can improve average daily gain and feed efficiency of finishing cattle.


Molasses-Fat Blend As An Energy Source And Conditioning Agent In Feedlot Diets, A.S. Flake, Gerry L. Kuhl, James S. Drouillard Jan 1998

Molasses-Fat Blend As An Energy Source And Conditioning Agent In Feedlot Diets, A.S. Flake, Gerry L. Kuhl, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Seventy-two yearling crossbred steers were used in an individual feeding trial to evaluate the effects of adding a molasses-fat blend (Synergy® 19/14; Cargill Molasses Liquid Products) to diets at 6 or 12% (dry basis) on growth performance, carcass traits, and feed intake behavior. Dry-rolled corn was processed to a mean geometric particle size of either 2,000 or 3,800 microns. Adding the liquid supplement at 6% to the coarse-rolled finishing ration improved gain (P<.1) and feed efficiency (P<.1). Incorporation of Synergy 19/14 into feedlot rations may help reduce fluctuations in feed intake.


Tower Tank Valve Flushing System For Dairy Facitlites, Joseph P. Harner, James P. Murphy, John F. Smith Jan 1998

Tower Tank Valve Flushing System For Dairy Facitlites, Joseph P. Harner, James P. Murphy, John F. Smith

Kansas Agricultural Experiment Station Research Reports

Flushing characteristics of a tower tank valve flushing system with a 12-inch-diameter manual valve were determined. Data were obtained using the outside cow alleys in a fourrow freestall barn. The alleys were 12 ft wide and 420 ft long with a 2% slope. The average flow rate exceeded 8,000 gallons per minute (gpm) when the average head was above 30 ft and the manual valve opened 80 degrees. Opening the valve to 90 degrees increased the flow rate to over 9,700 gpm. The velocity of the flushing wave was 8.5 fpm with a flow depth of 3 ...


Why, How-To, And Cost Of Programed Ai Breeding Of Dairy Cows, Jeffrey S. Stevenson Jan 1998

Why, How-To, And Cost Of Programed Ai Breeding Of Dairy Cows, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Management of the estrous cycle is now more practical than it was a decade ago because of our understanding of follicular waves. With availability of three gonadotropin-releasing hormone (GnRH) products and two prostaglandin products, the cycle can be controlled for fixed-time inseminations with little loss in conception rate compared to inseminations after detected estrus. Various systems are effective for programming first inseminations with or without some heat detection. With the incorporation of transrectal ultrasonography for early pregnancy diagnosis 28 to 30 days after insemination, routine heat detection programs could be eliminated by reprogramming each cow after an open diagnosis. The ...


Extruded-Expelled Cottonseed Meal (Express) As A Source Of Protein And Fat For Lactating Dairy Cows, A.F. Park, M.V. Sheffel, Evan C. Titgemeyer, John E. Shirley Jan 1998

Extruded-Expelled Cottonseed Meal (Express) As A Source Of Protein And Fat For Lactating Dairy Cows, A.F. Park, M.V. Sheffel, Evan C. Titgemeyer, John E. Shirley

Kansas Agricultural Experiment Station Research Reports

Twenty-four Holstein cows were used in six 4x4 Latin squares to evaluate the effects of substituting extruded-expelled cottonseed meal (Express™) for whole cottonseed and solvent soybean meal in diets for lactating cows. No differences were observed in milk and milk component yield among treatments. Percentages of fat, protein, solids-not-fat, and lactose in milk were similar among treatments. Replacing whole cottonseed with Express™ tended to reduce milk urea nitrogen but had no effect on milk protein percentage or yield. Cow acceptability of Express™ was excellent throughout the 84-day study conducted between late June and September when ambient temperature exceeded 100EF for ...


Sampling Techniques For And Interpretation Of Milk Urea Nitrogen Concentration, A.F. Park, John F. Smith, Timothy G. Rozell, Jeffrey S. Stevenson Jan 1998

Sampling Techniques For And Interpretation Of Milk Urea Nitrogen Concentration, A.F. Park, John F. Smith, Timothy G. Rozell, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Representative MUN values can be obtained by testing a milk sample before milking, at AM or PM milking, or with an in-line siphon sampling device. MUN values obtained from homogenous milking strings are as accurate as an average MUN value obtained by sampling each cow in the string. Bulk tank sampling is not advisable because of the variation in MUN caused by stage of lactation. Small herds that feed a single TMR should use the average MUN from cows between 60 and 200 days in milk. Monthly sampling is recommended to build a database. The effect of diet changes on ...


Freestall Barn Design And Management For Cow Comfort, W.G. Bickert, John F. Smith Jan 1998

Freestall Barn Design And Management For Cow Comfort, W.G. Bickert, John F. Smith

Kansas Agricultural Experiment Station Research Reports

Proper design, construction, and care of freestalls are essential to cows using the stalls and realizing their potential benefits for comfort and health. Freestall dimensions depend upon particular designs and are compromises between ensuring optimum cleanliness and providing a spacious area for the ultimate in cow comfort. Freestalls designed to meet these fundamental needs will be most used. Most likely, no perfect freestall design exists. Rather, several freestall designs may satisfy the basic requirements of the cow perfectly well!; Dairy Day, 1998, Kansas State University, Manhattan, KS, 1998;


Field Research 1998, Dale L. Fjell Jan 1998

Field Research 1998, Dale L. Fjell

Kansas Agricultural Experiment Station Research Reports

No abstract provided.


Roundup 1998, Kansas State University. Agricultural Research Southeast Agricultural Research Center Center--Hays Jan 1998

Roundup 1998, Kansas State University. Agricultural Research Southeast Agricultural Research Center Center--Hays

Kansas Agricultural Experiment Station Research Reports

Roundup is the major beef cattle education and outreach event sponsored by the Agricultural Research Center-Hays. The purpose is to communicate timely, applicable research information to producers and extension personnel. The research program of the Agricultural Research Southeast Agricultural Research Center Center-Hays is dedicated to serving the people of Kansas by developing new knowledge and technology to stabilize and sustain long-term production of food and fiber in a manner consistent with conservation of natural resources, protection of the environment, and assurance of food safety. Primary emphasis is on production efficiency through optimization of inputs in order to increase profit margins ...


Effects Of Particle Size And Mixing Time On Uniformity And Segregation In Pig Diets, N Amornthewaphat, Keith C. Behnke, Joe D. Hancock Jan 1998

Effects Of Particle Size And Mixing Time On Uniformity And Segregation In Pig Diets, N Amornthewaphat, Keith C. Behnke, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Diet uniformity, as represented by the coefficient of variation (CV), improved as mixing time was increased from 15 to 120 seconds and(or) com particle size was decreased from 1,200 to 400 ~m. Segregation occurred during free-fall, and the coarser particle sizes resulted in greater segregation than the finer particle sizes. Thus, reducing particle size of the cereal grain in swine diets not only improves efficiency of growth (as demonstrated in numerous KSU Swine Day Reports) but also decreases mix time needed for adequate blending and the likelihood of segregation during handling, storage, and delivery of diets to feeders ...


Effects Of Expanded Whole Soybeans On Growth Performance And Nutrient Digestibility In Nursery Pigs, H Cao, Robert H. Hines, J M. Jiang, J S. Park, J R. Froetschner, C A. Maloney, Joe D. Hancock, Keith C. Behnke Jan 1998

Effects Of Expanded Whole Soybeans On Growth Performance And Nutrient Digestibility In Nursery Pigs, H Cao, Robert H. Hines, J M. Jiang, J S. Park, J R. Froetschner, C A. Maloney, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

As expected, ADG, ADFI, F/G, and digestibility of DM and N were improved in nursery pigs when cone pressure was increased during dry and moist expanding of whole soybeans. These response were quadratic for the most part, such that 1,000 psi was optimal with dry expanding and 700 to 800 psi was optimal with moist expanding.; Swine Day, Manhattan, KS, November 19, 1998


Effects Of Modified Tall Oil Versus Conjugated Linoleic Acid On Finishing Pig Growth Performance And Carcass Characteristics, P R. Oquinn, J W. Smith Ii, Michael D. Tokach, J Scott Smith, Jim L. Nelssen, Robert D. Goodband Jan 1998

Effects Of Modified Tall Oil Versus Conjugated Linoleic Acid On Finishing Pig Growth Performance And Carcass Characteristics, P R. Oquinn, J W. Smith Ii, Michael D. Tokach, J Scott Smith, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A growth trial was conducted to compare effects of modified tall oil (MTO) and conjugated linoleic acid (CLA) on growth performance, serum chemistry, and carcass composition of finishing barrows. Overall, pigs fed the control diet did not differ from pigs fed MTO or CLA supplemented diets. However, pigs fed MTO had greater ADG and ADFI than pigs fed CLA. No effect of treatment was observed for any of the measured carcass criteria or serum triglyceride levels. The results of this research do not suggest a benefit from feeding MTO or CLA to pigs but do indicate differences in ADG and ...


Effects Of Level Of Modified Tall Oil On Finishing Pig Growth Performance And Carcass Characteristics, P R. O'Quinn, J C. Woodworth, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, John A. Unruh Jan 1998

Effects Of Level Of Modified Tall Oil On Finishing Pig Growth Performance And Carcass Characteristics, P R. O'Quinn, J C. Woodworth, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

A growth trial was conducted to evaluate effects of increasing levels of modified tall oil (MTO) on growth performance and carcass composition of finishing barrows. No effect of treatment was observed for ADG, ADFI, or feed efficiency (F/G) during any of the growth periods. However, pigs fed increasing MTO had less backfat, larger longissimus muscle area, and increased percentage muscle than control pigs not fed MTO. Additionally, carcasses from pigs fed MTO had decreased drip loss. The results of this trial indicate that although MTO has no impact on growth performance in barrows, it can improve carcass leanness. The ...


Effects Of Sorghum Starch Type, Endosperm Hardness, And Processing On Digestibility And Growth Performance In Finishing Pigs And Chicks, H Cao, Robert H. Hines, B W. Senne, J R. Froetschner, J M. Jiang, S L. Johnston, Joe D. Hancock, Keith C. Behnke Jan 1998

Effects Of Sorghum Starch Type, Endosperm Hardness, And Processing On Digestibility And Growth Performance In Finishing Pigs And Chicks, H Cao, Robert H. Hines, B W. Senne, J R. Froetschner, J M. Jiang, S L. Johnston, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

In finishing pigs, waxy sorghum had lower digestibilities for DM and GE than the other genotypes. Also, the hard sorghums were more digestible (P<.06) than the medium hardness sorghum. In broiler chicks, the waxy sorghum was similar to the other genotypes for growth performance and nutrient digestibility. The soft sorghum was superior to the medium and hard genotypes for nutrient retention but not for growth performance. Fine grinding improved F/G and increased retention of nutrients and steam-flaked sorghum supported greater growth performance than extruded sorghum.; Swine Day, Manhattan, KS, November 19, 1998


Effects Of Diet Manipulation On Growth Performance, Carcass Characteristics, And Meat Quality Of Intact Male Pigs, C A. Maloney, Robert H. Hines, H Cao, J S. Park, Joe D. Hancock Jan 1998

Effects Of Diet Manipulation On Growth Performance, Carcass Characteristics, And Meat Quality Of Intact Male Pigs, C A. Maloney, Robert H. Hines, H Cao, J S. Park, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Castrates were predictably less efficient, had greater ADFI, and tended to have more BF than contemporary boars. Castration decreased detection of boar taint, but alterations of dietary CP, pH, and antimicrobial level from 225 to 276 lb had no effect on sensory panel perception of odor from fat of intact males.; Swine Day, Manhattan, KS, November 19, 1998


Enzyme Additions To Sorghum-Based Diets For Finishing Pigs, J S. Park, Robert H. Hines, C A. Maloney, H Cao, D J. Lee, Joe D. Hancock, Joel M. Derouchey Jan 1998

Enzyme Additions To Sorghum-Based Diets For Finishing Pigs, J S. Park, Robert H. Hines, C A. Maloney, H Cao, D J. Lee, Joe D. Hancock, Joel M. Derouchey

Kansas Agricultural Experiment Station Research Reports

Three experiments were conducted to determine the effects of a sorghum-specific enzyme supplementation on growth performance of finishing pigs. Although positive trends occurred, the sorghum-specific enzymes used in our experiments did not yield large and(or) consistent improvements in growth performance or nutrient digestibility in finishing pigs.; Swine Day, Manhattan, KS, November 19, 1998


Effects Of Diet Complexity And Processing Method On Growth Performance And Nutrient Digestibility In Nursery Pigs, S L. Traylor, Robert H. Hines, S L. Johnston, P Sorrell, Keith C. Behnke, Joe D. Hancock, Joel M. Derouchey Jan 1998

Effects Of Diet Complexity And Processing Method On Growth Performance And Nutrient Digestibility In Nursery Pigs, S L. Traylor, Robert H. Hines, S L. Johnston, P Sorrell, Keith C. Behnke, Joe D. Hancock, Joel M. Derouchey

Kansas Agricultural Experiment Station Research Reports

A complex diet formulation resulted in greater digestibility of nutrients and a trend for greater ADG for d 0 to 14 of the experiment. However, for d 14 to 28 and overall (d o to 28), diet complexity did not affect growth performance. In contrast, pelleting improved essentially every response criterion especially in simple diets. Expander conditioning before pelleting increased overall digestibility of nutrients and of F/G compared to standard conditioning, but again, the response was most pronounced with the simple diet formulations.; Swine Day, Manhattan, KS, November 19, 1998


Expander Processing Conditions Affect Nutrient Digestibility In Finishing Pigs Fed Corn-, Sorghum-, Wheat-, And Wheat Midds-Based Diets, S L. Traylor, Robert H. Hines, D J. Lee, S L. Johnston, P Sorrell, Joe D. Hancock, Keith C. Behnke Jan 1998

Expander Processing Conditions Affect Nutrient Digestibility In Finishing Pigs Fed Corn-, Sorghum-, Wheat-, And Wheat Midds-Based Diets, S L. Traylor, Robert H. Hines, D J. Lee, S L. Johnston, P Sorrell, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

Expander processing of corn-, sorghum-, wheat-, and wheat midds-based diets improved nutrient digestibility in growing pigs and, thus, the apparent digestible energy concentration in the diets. This new feed manufacturing technology was especially beneficial to the feedstuff with the highest fiber content (i.e., wheat midds).; Swine Day, Manhattan, KS, November 19, 1998


Expander Processing And Enzymes For A Wheat-Based Diet For Finishing Pigs, J S. Park, Robert H. Hines, G A. Kennedy, Joel M. Derouchey, D J. Lee, C A. Maloney, H Cao, Joe D. Hancock, Keith C. Behnke Jan 1998

Expander Processing And Enzymes For A Wheat-Based Diet For Finishing Pigs, J S. Park, Robert H. Hines, G A. Kennedy, Joel M. Derouchey, D J. Lee, C A. Maloney, H Cao, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

Overall ADG and ADFI were not affected, but feed efficiency was improved with pelleting and further improvements resulted from expander processing. In a second experiment, enzyme supplementation to mash, but not pelleted, diets improved feed efficiency. Indeed, F/G for pigs fed mash with enzyme was similar to that for pigs fed pelleted diets.; Swine Day, Manhattan, KS, November 19, 1998


Influence Of Duration Of Dietary Vitamin E Supplementation On Swine Growth Performance And Carcass Quality, J F. Stika, John A. Unruh, Donald H. Kropf, Melvin C. Hunt, Robert D. Goodband Jan 1998

Influence Of Duration Of Dietary Vitamin E Supplementation On Swine Growth Performance And Carcass Quality, J F. Stika, John A. Unruh, Donald H. Kropf, Melvin C. Hunt, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

Supplementing medium-lean genotype pigs with supranutritional concentrations of dietary vitamin E (91 IU d-a-tocopheryl acetate/lb of feed) for as long as 70 d during the finishing phase was not effective in improving swine performance, feeding characteristics, and 24 h loin muscle quality. However, lower carcass temperatures obtained by spray chilling pork sides at O°C versus 4.4°C had a beneficial effect on 24 h carcass quality by improving marbling and lean firmness scores and reducing loin muscle moisture exudate. Overall, 24 h pork carcass quality was impacted more by chill rate than dietary vitamin E supplementation.; Swine ...


Effects Of Poultry Fat And Choice White Grease On Pork Longissimus Muscle, Belly, And Bacon Quality, J J. Engel, J W. Smith Ii, Robert D. Goodband, John A. Unruh, Michael D. Tokach, Jim L. Nelssen Jan 1998

Effects Of Poultry Fat And Choice White Grease On Pork Longissimus Muscle, Belly, And Bacon Quality, J J. Engel, J W. Smith Ii, Robert D. Goodband, John A. Unruh, Michael D. Tokach, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Eighty-four crossbred gilts were used to examine the effects of increasing dietary additions of poultry fat (PF) or choice white grease (CWG) on longissimus muscle (LM), belly, and bacon quality. Pigs fed PF had greater LM cooking loss values than those fed CWG. As PF increased in the diet, LM Minolta L* and belly lean values decreased. then increased. Neither fat source nor level significantly affected other LM quality or sensory traits. As PF increased, bacon slicing score decreased. Although all taste panel scores were well within acceptable ranges, bacon from pigs fed PF had higher sensory panel "off flavor ...


Influence Of High Levels Of Zinc From Zinc Oxide, Zinc Sulfate, Or A Zinc Amino Acid Complex On Starter Pig Performance, J C. Woodworth, P R. O'Quinn, J A. Loughmiller, S A. Moser, T M. Fakler, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 1998

Influence Of High Levels Of Zinc From Zinc Oxide, Zinc Sulfate, Or A Zinc Amino Acid Complex On Starter Pig Performance, J C. Woodworth, P R. O'Quinn, J A. Loughmiller, S A. Moser, T M. Fakler, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three hundred and sixty early-weaned barrows were fed either a control diet; diets containing added Zn (l00, 200, 300, 400, or 500 ppm) from zinc sulfate or a zinc amino acid complex (AvailaZn); or a diet containing 3,000 ppm of additional Zn from zinc oxide. All diets contained 165 ppm of Zn from zinc oxide from the trace mineral premix. Pigs fed 3,000 ppm of Zn from zinc oxide had maximum growth performance compared to those fed other diets, whereas those fed added zinc sulfate and AvailaZn showed intermediate results relative to the negative control and the 3 ...