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Kansas Agricultural Experiment Station Research Reports

1998

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Articles 1 - 30 of 113

Full-Text Articles in Life Sciences

Southwest Research-Extension Center Field Day 1998 Jan 1998

Southwest Research-Extension Center Field Day 1998

Kansas Agricultural Experiment Station Research Reports

Each Field Day report consists of individual research reports on topics specific to the region, including cultural methods for most of the major crops grown in Kansas, mitigating the effects of weeds, insects, and disease associated with those crops, and irrigation. Research is conducted and reports written by staff of the K-State Research and Extension Southwest Research Extension Center.

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Effects Of Supplemental Degradable Intake Protein On Intake And Digestibility Of Bermuda Hay, C.P. Mathis, R.C. Cochran, J.S. Heldt, B.C. Woods, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer Jan 1998

Effects Of Supplemental Degradable Intake Protein On Intake And Digestibility Of Bermuda Hay, C.P. Mathis, R.C. Cochran, J.S. Heldt, B.C. Woods, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

A study with 16 ruminally fistulated beef steers fed Bermuda hay ad libitum showed that the intake and digestibility of hay was not influenced by increasing levels of supplemental degradable intake protein (DIP). However, the hay used in this study was of medium quality; lower quality Bermuda hay with lower CP may respond to supplemental DIP.

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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.

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Milking Two Or Five Times Daily In The Presence Of A Cow’S Own Nonsuckling Calf Fails To Prolong Postpartum Anovulation, G.C. Lamb, K. E. Thompson, J.S. Heldt, C.A. Löest, Jeffrey S. Stevenson Jan 1998

Milking Two Or Five Times Daily In The Presence Of A Cow’S Own Nonsuckling Calf Fails To Prolong Postpartum Anovulation, G.C. Lamb, K. E. Thompson, J.S. Heldt, C.A. Löest, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Three treatments were initiated at approximately 15 days after calving and continued for 4 weeks: 1) cows were suckled ad libitum by their calves (calf present [CP]); 2) calves were present but nonsuckling 24 hr/day and cows were milked twice daily (CR+2xM); 3) or same as CR+2xM but cows were milked five times daily (CR+5xM). Interval to the first postpartum ovulation was similar between CR+2xM and CR+5xM cows but about 2 weeks less than that in cows suckled ad libitum by their own calves. Cows in the CR+5xM treatment produced more milk than cows in the CR+2xM treatment, whereas only …

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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.

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Microbial Evaluation Of Steam Pasteurization And Comparison Of Excision Versus Sponge Sampling Recovery, D.L. Retzlaff, S.A. Rueger, Randall K. Phebus, James L. Marsden, Curtis L. Kastner Jan 1998

Microbial Evaluation Of Steam Pasteurization And Comparison Of Excision Versus Sponge Sampling Recovery, D.L. Retzlaff, S.A. Rueger, Randall K. Phebus, James L. Marsden, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

The use of steam pasteurization (SPS400™; Frigoscandia, Bellevue, WA) as a viable commercial-scale intervention method to treat pre-rigor beef carcasses uniformly hasbeen evaluated for temperatures from 180E to 201 ÌŠF. Effectiveness at lower temperatures(minimum atmospheric temperature of 170 ÌŠF) has not been evaluated. Previous studies of steam pasteurization used excision sampling. However, the USDA-FSIS has suggested use of nondestructive sampling of chilled beef carcasses for generic Escherichia coli, so we compared excision and sponge sampling in a commercial slaughter facility. Twenty-eight beef carcasses were monitored to determine the effectiveness of steam pasteurization and to compare the two sampling methods. Total …

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Prevalence, Antibiotic Susceptibility, And Genetic Diversity Of Salmonella, Campylobacter, And Escherichia Coli O157:H7 Collected At Four Kansas Beef Cattle Feedyards Over 13 Months, D.R. Hyatt, J.C. Galland, S. Crupper, L. Hawkins, N.V. Anderson, Gerald L. Stokka Jan 1998

Prevalence, Antibiotic Susceptibility, And Genetic Diversity Of Salmonella, Campylobacter, And Escherichia Coli O157:H7 Collected At Four Kansas Beef Cattle Feedyards Over 13 Months, D.R. Hyatt, J.C. Galland, S. Crupper, L. Hawkins, N.V. Anderson, Gerald L. Stokka

Kansas Agricultural Experiment Station Research Reports

Salmonella, Campylobacter, and Eschericia coli O157:H7 are important foodborne pathogens, but longitudinal studies of their prevalence in beef cattle feedyards have not been done. Our long- term study involved 24,556 samples taken from beef cattle feedyards found overall prevalence's of 4.87% for Salmonella, 20.1% for Campylobacter in hospital pen fecal samples, and 0.20% for E. coli O157:H7. Yard and pen differences (P<0.05) were detected. All 53 E. coli O157:H7 isolates were resistant to Talmicosin and Erythromycin, two antimicrobials used in food animal medicine. Their genetic diversity was high and did not indicate the presence of resident strains at the yards studied. Salmonella, Campylobacter, and E. coli O157:H7 were probably brought into the yards by shipments of new cattle. Many of these organismswere susceptible to antibiotics commonly used to treat beef cattle.

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Soybean Hulls In Roughage-Free Diets For Limit-Fed Growing Cattle, C.A. Löest, D.J. Bindel, Evan C. Titgemeyer, James S. Drouillard, Dale A. Blasi Jan 1998

Soybean Hulls In Roughage-Free Diets For Limit-Fed Growing Cattle, C.A. Löest, D.J. Bindel, Evan C. Titgemeyer, James S. Drouillard, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

Three hundred heifers (573 lb initial body weight) were used in a growing study to compare growth performance of cattle fed roughage-free diets comprised mainly of soybean hulls with that of cattle receiving roughage- and corn-based diets and to determine if cattle fed soybean hull-based diets would respond to supplemental methionine hydroxy analogue (MHA; a source of methionine), ruminally protected betaine, or concentrated separator by-product (CSB; a source of betaine). Treatments included 1) a roughage-based diet fed at 2.75% of body weight (ROUGH), 2) a corn-based diet fed at 1.5% of body weight (CORN1.5), 3) a corn- based diet fed …

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Betaine As A Dietary Supplement For Finishing Cattle, C.A. Loest, R.D. Hunter, R.H. Wessels, James S. Drouillard, Evan C. Titgemeyer Jan 1998

Betaine As A Dietary Supplement For Finishing Cattle, C.A. Loest, R.D. Hunter, R.H. Wessels, James S. Drouillard, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

One hundred seventy five steers (902 lb initial body weight) were used in a finishing study to determine the effect of betaine, provided either as feed-grade betaine (Betafin-S6, Finnsugar Bioproducts) or as concentrated separator by-product (CSB; desugared beet molasses), on animal performance and carcass characteristics. Steers were fed a finishing diet based on steam-flaked and dry-rolled corn. Treatments included 10.5 or 21 g/steer daily supplemental feed-grade betaine or 250 g (15.5 betaine) or 500 g (31 g betaine) of CSB per steer daily. Dry matter intakes increased (linear, P<0.1) for steers supplemented with feed- grade betaine. Average daily gains and feed efficiencies were not affected by treatments. Dressing percent and twelfth rib back fat increased (P<0.1) for steers that received feed-grade betaine. Rib-eye area decreased (P<0.1) when steers were supplemented with either feed-grade betaine or CSB. Yield grades were significantly higher (linear, P<0.1) for cattle receiving supplemental CSB or feed-grade betaine (quadratic, P<.05). Hot carcass weights, KPH, marbling scores, and percentage of carcasses grading USDA Choice were not affected by supplemental betaine. In this study, betaine supplementation did not markedly alter growth performance, but carcass fatness tended to increase for both supplements.

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Influence Of Melengesterol Acetate (Mga®) And Implus-H® Implants On Rate Of Gain, Feed Efficiency, And Carcass Characteristics Of Culled Beef Cows Fed A High Concentrate Ration, M.F. Spire, J.C. Galland, John A. Unruh, James S. Drouillard Jan 1998

Influence Of Melengesterol Acetate (Mga®) And Implus-H® Implants On Rate Of Gain, Feed Efficiency, And Carcass Characteristics Of Culled Beef Cows Fed A High Concentrate Ration, M.F. Spire, J.C. Galland, John A. Unruh, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

No statistical differences were detected in feedlot performance or carcass traits between control culled beef cows and those that were treated with melengesterol acetate (MGA®) and/or Implus-H® when fed in a feedyard for 56 days before slaughter. All groups performed well, indicating that this practice may be used to improve the market value of culled cows. Cow health during the feeding period is a major concern.

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Differences In Efficiency Among Kansas Beef Cow Producers, S. Eidson, Michael R. Langemeier, R. Jones Jan 1998

Differences In Efficiency Among Kansas Beef Cow Producers, S. Eidson, Michael R. Langemeier, R. Jones

Kansas Agricultural Experiment Station Research Reports

Beef cow producers must manage costs of production and improve production efficiency to compete with hog and poultry and other beef cattle producers. A sample of 46 beef cow enterprises from the Kansas Farm Management database was used to measure technical, economic, and overall efficiencies. On average the farms were 92% technically efficient, 80% economically efficient and 73% overall efficient. Our results suggest that 5% increases in economic and scale efficiencies would increase profit per cow by $20 and $24, respectively.

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Comparison Of Implants In Grazing Heifers And Carryover Effects On Finishing Gains And Carcass Traits, F.K. Brazle Jan 1998

Comparison Of Implants In Grazing Heifers And Carryover Effects On Finishing Gains And Carcass Traits, F.K. Brazle

Kansas Agricultural Experiment Station Research Reports

Crossbred yearling heifers were allotted randomly to three grazing implant treatments: 1) control (CONT), 2) Component® E-H (CEH), and 3) Ralgro® (RAL). After grazing native grass for 74 days, the heifers were transported to a western Kansas feedlot. All heifers were implanted with Synovex-H® upon arrival at the feedlot and were reimplanted70 days later with Finaplix-H®. The CEH heifers gained faster while on grass (P<.10) and in the feedlot than the RAL heifers. The CEH heifers had heavier carcasses than RAL heifers. Control heifers had the largest ribeyes. Other carcass traits, including USDA quality grade, were not influenced by pasture treatment. In this study, administration of CEH to heifers grazing native grass optimized overall performance whencombined with the feedlot implants (Synovex-H and Finaplix-H).

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Effects Of Diet Manipulation On Growth Performance, Carcass Characteristics, And Meat Quality Of Intact Male Pigs (1998), 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 (1998), 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

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Effects Of Sorghum Endosperm Hardness And Processing On Growth Performance And Nutrient Digestibility In Pigs And Broiler Chicks (1998), H Cao, Robert H. Hines, J S. Park, B W. Senne, J M. Jiang, J R. Froetschner, P Sorrell, Joe D. Hancock, Keith C. Behnke Jan 1998

Effects Of Sorghum Endosperm Hardness And Processing On Growth Performance And Nutrient Digestibility In Pigs And Broiler Chicks (1998), H Cao, Robert H. Hines, J S. Park, B W. Senne, J M. Jiang, J R. Froetschner, P Sorrell, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

In nursery pigs, the greatest digestibilities of DM, N, and OE were observed with soft sorghum. In finishing pigs, no difference was observed in digestibility of nutrients among the sorghum genotypes. Chicks fed soft sorghum had better F/G than chicks fed medium and hard sorghum. Finally, thermal processing (steam flaking and extrusion) improved ADG and F/G and digestibilities of DM, N, and GE compared to grinding (coarse and fine).; Swine Day, Manhattan, KS, November 19, 1998

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Effects Of Inorganic And Organic Acids On Urine Ph In Lactating Sows (1998), Robert H. Hines, H Coa, D J. Lee, C A. Maloney, J S. Park, Joel M. Derouchey, Joe D. Hancock Jan 1998

Effects Of Inorganic And Organic Acids On Urine Ph In Lactating Sows (1998), Robert H. Hines, H Coa, D J. Lee, C A. Maloney, J S. Park, Joel M. Derouchey, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Some swine practitioners are advocating the use of dietary acidifiers to reduce urine pH and, thereby, reduce the incidence of urinary tract infections. In our experiment, sows fed an inorganic (phosphoric) acid had lower urine pH than sows fed diets with organic (fumaric, lactic, formic, propionic, and citric) acids. Indeed, the organic acids at 1.5% and 3.0% of the diet increased blood pH and decreased pC02,indicating that these sows were in a more alkalotic (not acidotic) state.; Swine Day, Manhattan, KS, November 19, 1998

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Effects Of Different Soybean Meal Processing Techniques On Growth Performance Of Pigs (1998), J C. Woodworth, R E. Musser, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband Jan 1998

Effects Of Different Soybean Meal Processing Techniques On Growth Performance Of Pigs (1998), J C. Woodworth, R E. Musser, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A 35-d growth trial was conducted to determine the influence of different soybean meal processing techniques on starter pig growth performance. From d 0 to 14 after weaning, all pigs were fed a common diet. Then pigs were fed six experimental diets from d 14 to 35 after weaning. Three treatment comparisons were made. Pigs fed a diet containing extruded-expelled soybean meal (SBM) without hulls (Insta-Pro) were compared to those fed solvent-extracted SBM (46.50/0 CP) and 3.21% soy oil. Pigs fed a diet containing extruded-expelled SBM with hulls (lnsta-Pro) were compared to those fed a diet containing 44% CP SBM …

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Effects Of Source And Level Of Added Chromium On Growth Performance And Carcass Characteristics Of Growing-Finishing Pigs (1998), P R. O'Quinn, J W. Smith Ii, K Q. Owen, S A. Blum, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband Jan 1998

Effects Of Source And Level Of Added Chromium On Growth Performance And Carcass Characteristics Of Growing-Finishing Pigs (1998), P R. O'Quinn, J W. Smith Ii, K Q. Owen, S A. Blum, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A growth trial \vas conducted to evaluate the effects of added chrOlniu111 nicotinate (CrNic) on growth performance and carcass composition of growing-finishing pi.gs (80 to 230 lb) and to compare 200 ppb of CrNic and chromium picolinate (CrPic). Few statistical responses were observed for growth performance, carcass characteristics, or serum chemistry profiles. These data suggest no beneficial responses to supplemental chromium in diets for growing-finishing barrows and gilts.; Swine Day, Manhattan, KS, November 19, 1998

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Evaluation Of A High-Protein Whey Protein Concentrate And Spray-Dried Animal Plasma On Growth Performance Of Weanling Pigs (1998), G S. Grinstead, B Reibold, J T. Sawyer, M Molitor, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1998

Evaluation Of A High-Protein Whey Protein Concentrate And Spray-Dried Animal Plasma On Growth Performance Of Weanling Pigs (1998), G S. Grinstead, B Reibold, J T. Sawyer, M Molitor, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Results of these studies suggest that experimental high molecular weight, whey protein concentrate can be an effective replacement for spray-dried animal plasma in diets for weanling pigs. Increasing spray-dried animal plasma improved ADG and ADFI quadratically, with the maximum response observed with 2.5% in 21-d-old pigs or 5.0% in 12-d-old pigs. The specialty whey protein concentrate fed from d 0 to 14 after weaning resulted in similar responses as spray-dried animal plasma fed during the same period and may be an effective alternative.; Swine Day, Manhattan, KS, November 19, 1998

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Effects Of Exotic Soybean Genotype On Growth Performance, Nutrient Digestibility, And Carcass Traits In Finishing Pigs (1998), H Cao, Robert H. Hines, Terry L. Gugle, Donald H. Kropf, C A. Moloney, J M. Jiang, J Z. Cheng, J S. Park, Joe D. Hancock, William T. Schapaugh Jan 1998

Effects Of Exotic Soybean Genotype On Growth Performance, Nutrient Digestibility, And Carcass Traits In Finishing Pigs (1998), H Cao, Robert H. Hines, Terry L. Gugle, Donald H. Kropf, C A. Moloney, J M. Jiang, J Z. Cheng, J S. Park, Joe D. Hancock, William T. Schapaugh

Kansas Agricultural Experiment Station Research Reports

Compared to a corn-soybean meal control, added-fat from tallow, soybean oil, and dry-extruded whole soybeans (DEWS) improved ADG, F/G, and digestibility of DM and N. Feeding tallow increased belly firmness but also increased backfat thickness compared to diets with soy oil and DEWS. Comparisons among soybean genotypes indicated that high oleic acid soybeans supported greater growth performance than soybeans with high palmitic acid content. However, soybean genotype had no effect on carcass or meat quality measurements.; Swine Day, Manhattan, KS, November 19, 1998

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Expander Processing And Enzymes For A Wheat-Based Diet For Finishing Pigs (1998), 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 (1998), 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

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Influence Of Duration Of Dietary Vitamin E Supplementation On Fresh And Cured Pork Color Stability (1998), 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 Fresh And Cured Pork Color Stability (1998), J F. Stika, John A. Unruh, Donald H. Kropf, Melvin C. Hunt, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

Supplementing finishing pigs genetically predisposed to lipid deposition with atocopheryl acetate above 12 IU/lb of feed for as long as 70 d did not improve color stability of fresh and cured pork. Tissue a-tocopherol levels were similar across dietary treatments and higher than predicted. Muscle accumulation of a-tocopherol may be related to the rate and extent of lipid deposition in muscle. Also, chill temperature and carcass chill rate variability, under spray chill conditions, did not influence fresh pork color stability when carcasses with excessive amounts of external fat were utilized.; Swine Day, Manhattan, KS, November 19, 1998

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Effects Of Increasing L-Lysine Hcl On Finishing Pig Growth Performance And Carcass Characteristics (1998), M De La Llata, J A. Loughmiller, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 1998

Effects Of Increasing L-Lysine Hcl On Finishing Pig Growth Performance And Carcass Characteristics (1998), M De La Llata, J A. Loughmiller, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

We conducted two studies to determine the effects of increasing L-lysine HCI in finishing pig diets. Experiment 1 used sorghum-soybean meal-based diets, and Exp. 2 used corn-soybean meal-based diets. Treatments included a control diet (no L-lysine HCl) or .15, .225, and .30% L-lysine HCI replacing the lysine provided by soybean meal. In Exp. 1, increasing L-lysine HCI from 0 to .150/0 had no effect on ADG, F/G, and percentage lean; however, pigs fed .225 and .30% L-Iysine HCI had poorer ADG, F/G, and percentage lean. In Exp. 2, ADG and FfG were poorer for pigs fed .225 or .30% L-lysine …

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Feeding Systems And Implant Strategies For Calf-Fed Holstein Steers, C.T. Milton, Robert T. Brandt Jr., Evan C. Titgemeyer Jan 1998

Feeding Systems And Implant Strategies For Calf-Fed Holstein Steers, C.T. Milton, Robert T. Brandt Jr., Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Two hundred sixty-four Holstein steer calves (308 lb) were used in a 2x3 factorially designed experiment to compare the effect of two feeding systems and three implant strategies on performance and carcass characteristics. Steers were allowed ad libitum access to a conventional, high-grain diet for the entire feeding period or were program-fed a high-grain diet to gain 2.2 lb/d for 109 days and 2.6 lb/d for 92 days and then allowed ad libitum access to feed for the remainder of the feeding period. Steers were fed to a common weight endpoint (1260 lb). Implant strategies were: 1) Synovex® -S on …

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Effects Of Level Of Modified Tall Oil On Finishing Pig Growth Performance And Carcass Characteristics (1998), 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 (1998), 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 optimal …

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Determining Feed Budgets For Farm-Specific Nutritional Programs (1998), Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 1998

Determining Feed Budgets For Farm-Specific Nutritional Programs (1998), Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Use of feed budgets simplifies feed delivery and improves the accuracy of delivering diets to the correct pig weight ranges during the nursery and finishing periods. Little information has been available for determining farm-specific feed budgets in the past. In this paper, we will outline simple methods to customize a feed budget for individual farms using feed efficiency from past closeout records.; Swine Day, Manhattan, KS, November 19, 1998

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Nutritional Value Of A Transgenic High-Lysine, High-Oil Corn For Young Pigs (1998), P R. O'Quinn, D A. Knabe, J C. Woodworth, T T. Lohrmann, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach Jan 1998

Nutritional Value Of A Transgenic High-Lysine, High-Oil Corn For Young Pigs (1998), P R. O'Quinn, D A. Knabe, J C. Woodworth, T T. Lohrmann, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to compare the nutritional adequacy ofhigh-lysine, high-oil corn (.408% lysine, 6.21% fat) and highoil corn (.289% lysine, 5.97% fat) for young growing pigs. Experiment 1 used four barrows fitted with ileal T-cannulas in a crossover design digestion study. Diets contained 8.5% casein and an equal amount of lysine from the test corn. Apparent ileal digestibilities of amino acids, GE, DM, CP, and ash were similar between diets. Experiment 2 used segregated early-weaned barrows in a 2 x 2 factorially designed growth trial. Main effects were corn type and dietary lysine (.80 or 1.15% digestible lysine). Increasing …

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Influence Of Duration Of Dietary Vitamin E Supplementation On Swine Growth Performance And Carcass Quality (1998), 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 (1998), 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 Day, Manhattan, KS, November …

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Influence Of Added Zinc From Zinc Oxide On Starter Pig Performance (1998), J C. Woodworth, P R. O'Quinn, T M. Fakler, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 1998

Influence Of Added Zinc From Zinc Oxide On Starter Pig Performance (1998), J C. Woodworth, P R. O'Quinn, 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 diets containing increasing levels of added Zn from zinc oxide (0, 50, 100, 200, 400, 800, 1,600, 2,400, and 3,200 ppm). From d 11 to 21, growth performance improved with up to 100 ppm of added Zn but was not improved further until pigs were fed 3,200 ppm of added Zn. From d 21 to 36, pigs fed 100 ppm of Zn had the best growth performance. These results suggest that a pig's basal Zn requirement is met with 100 ppm of added Zn from zinc oxide, but adding 3,200 ppm Zn …

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

Effects Of Particle Size And Mixing Time On Uniformity And Segregation In Pig Diets (1998), 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.; Swine Day, …

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Effects Of Supplemental Degradable Intake Protein On Intake And Digestibility Of Low-Quality Brome Hay, C.P. Mathis, R.C. Cochran, J.S. Heldt, B.C. Woods, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer Jan 1998

Effects Of Supplemental Degradable Intake Protein On Intake And Digestibility Of Low-Quality Brome Hay, C.P. Mathis, R.C. Cochran, J.S. Heldt, B.C. Woods, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

The effects of increasing levels of degradable intake and digestion of low-quality brome hay were evaluated using 16 ruminally fistulated beef steers. Trends were evident for small, positive changes in total intake and digestion with increasing level of DIP supplementation. As a result, total digestible to feeding forage to provide .041, .082, and OM intake (TDOMI) increased with DIP supplementation but tended to plateau below the highest supplementation level.

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