Animal Sciences Commons^™

Feeding Value Of Diets For Growing-Finishing Pigs With Varying Concentrations Of Corn Distillers Dried Grain With Solubles (Ddgs), Roman Moreno, Philip S. Miller, Thomas E. Burkey, Matthew Anderson, Jeffrey Perkins, Donald Mcclure, Thomas Mcgargill

Nebraska Swine Reports

Two-hundred and forty pigs (61.73 lb) were used in a 16-week study conducted to evaluate the feeding value of diets with varying concentrations of distillers dried grains with solubles (DDGS) for growing-finishing pigs. Pigs were assigned to one of four dietary treatments. Treatments consisted of a standard diet formulated on a standardized ileal digestible lysine (SID lys) basis in which a portion of dietary corn and soybean meal were replaced to include 0, 5, 10 or 15% of DDGS in a 4-phase feeding regime. Treatment did not affect average daily gain (ADG), average daily feed intake (ADFI) or gain/feed (G:F) …

Economy Of Adding Fibrous Feedstuffs To Sow Gestation Diets, Duane Reese, Allen Prosch

Nebraska Swine Reports

A previous summary of research results indicated that sows fed high-fiber diets during gestation weaned 0.3 more pigs/litter on the average than sows fed lower-fiber, grain-based diets. Gestation diets containing 18% soybean hulls, 46% distillers dried grains with solubles (DDGS), 34% wheat midds, 25% wheat bran, 23% alfalfa meal, 25% sugar beet pulp, or 45% oats provide sows about 350 g/day of neutral detergent fiber (NDF), which may be sufficient to increase litter size weaned by 0.3 pigs per litter. An economic analysis suggests that feeding a diet containing these sources of NDF would increase sow feed ingredient costs from …

Explanation Of Statistics Used In This Report

Nebraska Swine Reports

Pigs treated alike vary in performance due to their different genetic makeup and to environmental effect we cannot completely control. When a group of pigs is randomly allotted to treatments it is nearly impossible to get an "equal" group of pigs on each treatment. The natural variability among pigs and the number of pigs per treatment determine the expected variation among treatment groups due to random sampling.

At the end of an experiment, the experimenter must decide whether observed treatment differences are due to "real" effects of the treatments or to random differences due to the sample of pigs assigned …

In Vivo And In Vitro Expression Of Porcine Zinc Transporter (Znt) 1 Mrna, Huyen Tran, Phillip Miller, Thomas E. Burkey

Nebraska Swine Reports

Preliminary experiments were carried out to evaluate in vivo expression of zinc transporter (ZnT) 1 mRNA in a panel of tissues obtained from weaned pigs and to evaluate in vitro changes in ZnT1 mRNA in a porcine jejunal epithelial cell line (IPEC-J2) treated with low (40 μM) or high (80 μM) concentrations of zinc sulphate (ZnSO₄) or, in a separate experiment, with low (50 μg/ml) or high (100 μg/mL) concentrations of antibiotics (as gentamicin; GENT). Lipopolysaccharide (LPS; 10 ng/mL) was included as a negative control in both experiments. Zinc transporter 1 mRNA was detected in all tissues evaluated …

Estimation Of The Lysine Requirements For High-Lean Growth Pigs, Phillip S. Miller, Roman Moreno, Thomas E. Burkey, Rodger K. Johnson

Nebraska Swine Reports

An experiment was conducted to determine the lysine regime required to maximize growth performance for high-lean-growth potential barrows and gilts beginning at 45 lb and concluding at approximately 260 lb. There were four growing-finishing phases and four lys treatments within phase (Grower-1, 44 lb to 79 lb; Grower-2 79 lb to 132 lb; Finisher-1, 132 lb to 189 lb; and Finisher-2, 1891b to 260 lb). Dietary treatments were corn-soybean meal based supplemented with 0.15% crystalline lysine. The formulation of 2 dietary treatments was aimed to provide lysine below the requirement, while the other 2 dietary treatments provided lys above the …

Dietary Fiber In Sow Gestation Diets - An Updated Review, Duane Reese, Allen Prosch, Daryl A. Travnicek, Kent M. Eskridge

Nebraska Swine Reports

Twenty-four published reports dating from 1975 to 2007 were examined to determine the overall effects of feeding gestation sows additional fiber. Sow and litter traits among trials were weighted by the number of litters for each treatment within each trial. Overall, sows can successfully consume high-fiber diets during gestation with few deleterious effects. Positive effects from feeding high-fiber diets were evident in litter size (0.2 to 0.6 pigs/litter) and sow lactation feed intake (0.5 to 0.8 lb/day), but they are not largely evident until the second reproductive cycle following exposure to the diet. It's possible that to ensure sow and …

Effects Of Nutrition During Gilt Development And Genetic Line On Farrowing Rates Through Parity 3, Causes Of Culling, Sow Weights And Backfats Through Parity 4, And Factors Affecting Farrowing Rates, Rodger K. Johnson, Phillip S. Miller, Matthew W. Anderson, Jeffrey M. Perkins, Kelsey A. Rhynalds, Trevor J. Glidden, Donald R. Mcclure, Thomas E. Mcgargill, Darryl J. Barnhill, Roman Moreno

Nebraska Swine Reports

Gilts of two genetic lines were developed with either ad libitum access to feed or energy restriction (75% of ad libitum) to determine effects on subsequent sow performance and longevity. Gilts can be developed with regimens in which energy is restricted during the growing period but the proportion that express pubertal estrus may be reduced in leaner, faster growing lines. Effects on subsequent farrowing rates are small. Sow weight and buckfat at farrowing and weaning of Parity 1 litters affect the likelihood of producing a Parity 2 litter, but these effects are dependent on lean growth rate of the line …

2008 Nebraska Swine Report

Nebraska Swine Reports

Table of Contents

Pork Central's Al Prosch Retires

Nutrition
The Effect of Corn Distillers Dried Grain with Solubles (DDGS) on Growth Performance of Growing-Finishing Pigs ● The Effect of Corn Distillers Dried Grain with Solubles (DDGS) on Carcass Characteristics and Pork Quality ● Effects of Increasing Concentrations of Distillers Dried Grains with Solubles (DDGS) on Growth Performance of Weanling Pigs ● Dietary Fiber in Sow Gestation Diets—An Updated Review ● Effects of Nutrition During Gilt Development on Lifetime Productivity of Sows of Two Profile Maternal Lines: Summary Growth Characteristics and Sow Productivity—2008 ● Effects of Nutrition During Gilt Development and …

Validating The Odor Footprint Tool Using Field Data, Richard R. Stowell, Kara R. Niemeir, Dennis D. Schulte

Nebraska Swine Reports

Trained participants monitored odors around a 4,800-head finishing site in eastern Nebraska during 2005 and 2006. “Mobile odor assessors” monitored odors within the downwind odor plume and reported that odors at off-site locations (at least 200 feet away) were consequentially annoying in 20 out of 192 assessments. On-site odor levels were considered annoying in 33 of 39 instances. For the same off-site locations and times, modeling predicted 18 annoying events, resulting in 90% prediction rate (18 vs. 20) of annoying frequency. Five residents regularly monitored for odors outside their residences and made 1,007 assessments. On 42 occasions, or 4.2% of …

Pork Central's Al Prosch Retires

Nebraska Swine Reports

Al Prosch retired from his position as Pork Central Coordinator in June 2007 after 11 years at the University of Nebraska.

Association Of Odor Measures With Annoyance: Results Of An Odor-Monitoring Field Study, Richard R. Stowell, Christopher G. Henry, Richard K. Koelsch, Dennis D. Schulte

Nebraska Swine Reports

Multiple assessments of ambient odor were made by trained individuals around a swine finishing operation in eastern Nebraska. Assessor responses were analyzed to determine relationships between field odor measurements/ ratings and ratings of annoyance potential, and to identify candidate measurement threshold values for causing annoyance. The likelihood of annoyance increased as odors became more offensive, intense, and concentrated, with r² values of 0.89, 0.81, and 0.64, respectively. Candidate thresholds were sought to delineate both “any degree of stated annoyance" and "consequential annoyance," defined as likely causing a change in behavior or activity level and instilling some memory of the …

Key Points From The 48th Annual George A. Young Swine Health And Management Conference, August 16, 2007, Bruce W. Brodersen

Nebraska Swine Reports

The conference focused on biosecurity with particular attention to porcine reproductive and respiratory syndrome virus (PRRSV) and porcine circovirus type 2 (PCV2). Speakers included faculty from the University of Minnesota, Iowa State University, and Kansas State University and veterinary practitioners from Iowa and Minnesota. Many of the topics focused on details relating to on-farm and off-farm biosecurity measures. Economic impacts of PRRSV and PCV2 infections were discussed in terms of specific case reports.

Does Dam Parity Affect Progeny Health Status?, Thomas E. Burkey, Phillip S. Miller, Rodger K. Johnson, Duane Reese, Roman Moreno

Nebraska Swine Reports

A preliminary experiment was conducted to investigate the health status of progeny derived from different parities; health status was characterized by evaluating the ability of Pl and P3 dams to produce and passively transfer immunoglobulins (IgA and IgG) to their progeny. At parturition, circulating concentrations of IgA and IgG were greater (P < 0.01 ) in P3 dams compared to P1 dams. As expected, during lactation, concentrations of IgA and IgG were greater (P < 0.002) in colostrum compared to milk (mid- and late-lactation). No parity differences were observed in immunoglobulin concentrations in colostrum or milk obtained from P1 and P3 dams. However, when immunoglobulins were quantified in the progeny of Pl and P3 dams a parity x time interaction was observed for circulating IgG (P < 0.03) and a trend for a parity x time interaction was observed for IgA (P = 0.06). Within a time point (d), serum IgG was greater (P < 0.001) in P3 progeny compared to P1 progeny for each time point measured. These results suggest that health status, as indicated by circulating immunoglobulin concentration, in neonatal pigs, may be affected by dam parity.

Effects Of Increasing Concentrations Of Distillers Dried Grains With Solubles (Dldgs) On Growth Performance Of Weaning Pigs, Thomas E. Burkey, Phillip S. Miller, Swapna Sheperd, Roman Moreno, Erin E. Carney

Nebraska Swine Reports

The objective of this experiment was to evaluate growth performance of weanling pigs introduced to low concentrations (5%) of DDGS during phase 2 of the nursery period followed by high concentrations (30%) during phase 3 of the nursery period Overall (day 0 to 42), pigs fed 5 or 30% DDGS in phase 2 (and 30% DDGS in phase 3) had decreased (P < 0.05) average daily gain (ADG) compared to control pigs. In addition, pigs fed 30% DDGS (during phase 2 and 3) had decreased (P < 0.05) body weight (BW) compared to control pigs and pigs that only received DDGS during phase 3. However, pigs fed 0% DDGS during phase 2 followed by 30% DDGS in phase 3) had similar BW, ADG and average daily feed intake compared to pigs fed the control diet. This research indicates that the inclusion of DDGS during phase 2 of the nursery may negatively affect growth performance, particularly when followed by inclusion of high concentrations of DDGS during phase 3 of the nursery period. However, growth performance may be maintained when high concentrations of DDGS are included in the diets of pigs (with no previous exposure to DDGS) late in the nursery period.

Effects Of Nutrition During Gilt Development On Lifetime Productivity Of Sows Of Two Profile Maternal Lines: Summary Of Growth Characteristics And Sow Productivity – 2008, Phillip S. Miller, Rodger K. Johnson, Roman Moreno, Matthew W. Anderson, Jeffrey M. Perkins, Donald R. Mcclure, Thomas Mcgargill

Nebraska Swine Reports

An experiment was conducted to determine the effects of energy restriction during the gilt development period on lifetime sow reproductive performance of two maternal lines. There were essentially no interactions among line, dietary treatment, and parity. The Large White x Landrace gilts were heavier before and after dietary treatments, matured later, and had greater longissimus muscle area compared to Nebraska Line gilts. Restricting energy intake during the developmental period increased litter weaning weight but had no affect on litter size. Nutritional management of prolific sow lines during the gilt development period does affect sow and litter performance. However, these results …

The Effect Of Corn Distillers Dried Grain With Solubles (Ddgs) On Carcass Characteristics And Pork Quality, Roman Moreno, Phillip S. Miller, Thomas E. Burkey, Steven J. Jones, Susan L. Cuppett, Timothy P. Carr, Tommi Jones, Ruth M. Diedrichsen

Nebraska Swine Reports

A study was conducted to evaluate the effect of feeding 0,5,10 or 15% distillers dried grains with solubles (DDGS) on carcass quality, color stability, and sensory characteristics of the longissimus muscle (LM) of finishing pigs. Live weight and hot carcass weight decreased as dietary DDGS increased (P < 0.05). Dressing percentage did not differ among treatments (P - 0.72). After 10 days of retail display, no differences were observed among treatments for color or color change (P > 0.05). No differences in shear force were observed (P = 0.34). Total unsaturated fatty acids increased and total saturated fatty acids decreased (P < 0.05) as dietary DDGS increased. Treatments did not affect sensory characteristics (P > 0.05). The results of this investigation suggest that dietary DDGS inclusion altered fatty acid profile of the backfat of pigs by reducing total saturated fatty acid and increasing total unsaturated …

Effect Of Increasing Lysine:Net Energy Ratio On Growth Performance And Plasma Urea Nitrogen Concentration Of Late-Finishing Barrows Fed Low-Protein Amino Acid-Supplemented Diets And Ractopamine, Roman Moreno, Phillip S. Miller, Thomas E. Burkey

Nebraska Swine Reports

An experiment was conducted to determine the optimum lysine (lys):Net energy (NE) ratio of low-crude protein (CP) amino acid (AA)-supplemented diets needed in conjunction with ractopamine (RAC) to improve growth performance of late-finishing barrows from the University of Nebraska-Lincoln (UNL) herd. Treatments consisted of jive low CP, AA-supplemented diets with addition of ractopamine (16% CP; 4.5g/ton), formulated to contain 3.35, 3.95,4.57, 5.2 and 5.83 g of lys/Mcal of NE. A corn-soybean meal diet with no RAC supplementation served as negative control (20% CP; 5.24 g of Lys/Mcal of NE). Treatment did not affect growth performance (P > 0.05). Despite the lack …

Effects Of Organic Acid Salts On The Quality Characteristics Of Whole Muscle Hams, Karaline A. Poovey, Dennis E. Burson, Roger W. Mandigo, Susan L. Cuppett, Harshavardhan Thippareddi

Nebraska Swine Reports

The use of organic acid salts in the meat industry enhances product shelf life and safety. Minimal research is available evaluating the effects of high levels of organic acid salts on quality and sensory attributes of ready-to-eat products. Whole muscle hams were cured with brine solutions containing one of the following organic acid salt additions: 0% Control; 2.5 or 3.5% L-sodium lactate and sodium diacetate; 1.3,2.5, or 3.5% buffered sodium citrate; 1.3,2.5, or 3.5% buffered sodium citrate and sodium diacetate. The increased use of organic acid salts decreased product moisture and cooking yield (P < 0.05). Sensory panelists perceived decreased overall acceptability, with increased sourness/acidity and bitterness. Moderate levels of organic acid salts provided more acceptable products while maintaining many sensory attributes. Meat processors choosing to use organic acid salts in ready-to-eat products should be cautious as product yield losses and flavor changes may outweigh benefits at certain levels.

Explanation Of Statistics Used In This Report

Nebraska Swine Reports

Pigs treated alike vary in performance due to their different genetic makeup and to environmental effect we cannot completely control. When a group of pigs is randomly allotted to treatments it is nearly impossible to get an "equal" group of pigs on each treatment. The natural variability among pigs and the number of pigs per treatment determine the expected variation among treatment groups due to random sampling.

Explanation Of Statistics Used In This Report

Nebraska Swine Reports

Pigs treated alike vary in performance due to their different genetic makeup and to environmental effect we cannot completely control. When a group of pigs is randomly allotted to treatments it is nearly impossible to get an “equal” group of pigs on each treatment. The natural variability among pigs and the number of pigs per treatment determine the expected variation among treatment groups due to random sampling.

Effects Of Nutrition During Gilt Development On Lifetime Productivity Of Sows Of Two Prolific Maternal Lines: Growth And Puberty Characteristics Of Rep 1 Gilts, Beth Maricle, Matthew Anderson, Jeffrey Perkins, Donald Mcclure, Laura Albrecht, Jose-Roman Moreno-Salgado, Phillip S. Miller, Rodger K. Johnson

Nebraska Swine Reports

This report is an annual update of an ongoing experiment initiated in 2005 to investigate effects of energy restriction during gilt development on reproduction through four parities. Gilts of two genetic lines expected to differ in rate of growth are used and are developed with either ad libitum access to feed or are restricted in energy to 75% of ad libitum amounts from approximately 120 days of age to breeding. Semen of the same sires, an industry maternal line, was used to produce gilts of both lines, but their dams were from two uniquely different populations. Dams of one line …

Odor Footprint Tool Progress: Regional Output Resources, Richard R. Stowell, Dennis D. Schulte, Richard K. Koelsch, Christopher G. Henry

Nebraska Swine Reports

This article highlights practical applications for resources being developed using the Odor Footprint Tool and the effects of differing regional weather patterns on needed setbacks by describing resources created for the regions surrounding Norfolk and Lincoln, Neb. The Odor Footprint Tool is being developed to help people assess the odor impact of new and expanded animal production facilities on the surrounding areas and use science- based information to establish minimum setback distances. Progress continues to be made toward development of a system that can be used in the field to develop site-specific odor footprints. As an intermediate step in this …

Effect Of Low-Protein Non-Amino Acid Supplemented Diet And Ractopamine (Paylean®) On Growth Performance And Serum Urea Concentration Of Late-Finishing Pigs, Roman Moreno, Robert Fischer, Phillip S. Miller

Nebraska Swine Reports

When feeding excessive amounts of protein, the nitrogen eliminated by the pigs in swine facilities has an important impact in the environment. Therefore, it is important to define nutritional strategies that promote a more efficient use of protein. This study was conducted to evaluate the effect of a low-protein non-amino acid supplemented diet and ractopamine (Paylean®) on performance of late-finishing pigs. Thirty-six finishing barrows and gilts with an initial body weight of 153.4 lb were used in a 42- day experiment. Pigs were penned individually and had ad libitum access to feed and water. The pigs were randomly allotted to …

Effect Of Dietary Crude Protein Versus Crystalline Amino Acids On Growth Performance, Serum Insulin-Like Growth Factor-I Concentration, And Igf-I Mrna Expression In Growing-Finishing Gilts, Robert Fischer, Ruth Diedrichsen, Debra Clompton, Andrea Cupp, Phillip S. Miller

Nebraska Swine Reports

Fifty-six crossbred gilts with an initial body weight of 73 lb were used in a 26-day growth study. The pigs were randomly allocated to one of seven dietary treatments and individually penned (8 replicates/treatment). The dietary treatments consisted of four standard corn-soybean meal diets, which were formulated by changing the corn and soybean meal (10, 14, 18, and 22% CP) ratio and three low-protein, amino acid-supplemented diets formulated to contain similar lysine, methionine, tryptophan, and threonine concentrations as the corn-soybean meal diets (10% CP + AA,14% CP + AA, and 18% CP + AA). Pig and feeder weights were recorded …

2006 Nebraska Swine Report, Duane Reese

Nebraska Swine Reports

Table of Contents
Production Management
• Impact of Repeated Out-of-Feed Events and Fineness of Grind on Grow-Finish Performance
• The Case Against Evening-Up Litters Until Weaning
• Patterns of Drinking Water Use in Pork Production Facilities

Business Management
• Producers' Management

Odor Issues
• Odor Footprint Tool Progress: Regional Output Resources

Reproduction
• Freezing Swine Embryos: Do Success Rates Differ Between Breeds?
• Regulation of Pituitary Gene Expression in Lines of Swine with Different Ovulation Rates

Nutrition
• Effect of Diet and Sire Line on Crow-Finish Performance
• Effects of Feeding Increased Levels of Vitamin B12 to Weaning Pigs
• …

The Case Against Evening-Up Litters Until Weaning, Duane Reese, Barbara Straw

Nebraska Swine Reports

A literature review on the effect of fostering or moving individual piglets from one litter to another after they are 24 to 48 hours of age was conducted. Late fostering disrupts nursing, increases fighting, and impairs the growth rate of adopted piglets and their littermates. Pig body weight at weaning was reduced 13 to 24% in extensively fostered litters vs. those where no piglets were fostered after 48 hours of age. No evidence was found that late fostering improves preweaning survival. For the greater good of all piglets, producers are encouraged to resist the urge to even-up litters or foster …

Genes Expressed In Response To Prrsv, Derek Petry, Rodger K. Johnson, Joan Lunney

Nebraska Swine Reports

Gene maps of livestock are rapidly being developed and have led to an explosion of knowledge in recent years about genes affecting economic traits. One potential application of this information that would have major economic value is in selection of livestock for resistance to disease. Even though much has been learned about Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) since it was first identified, PRRSV continues to cause significant economic losses in many herds. Traditional approaches to manage PRRSV can be effective, but may be costly and have not always resulted in permanent control. This is a disease for which …

Freezing Swine Embryos: Do Success Rates Differ Between Breeds?, Marcelo Montagner, Paulo B. D. Gonçalves, Ginger Mills, Ronald K. Christenson, Brett R. White

Nebraska Swine Reports

Successful freezing, or cryopreservation, of embryos could greatly impact the pork industry, serving as a tool for conservation of valuable germplasm and enhancing biosecurity for transfer of genetic material. Pig embryos are very sensitive to cooling and few reports have shown successful developmental rates following freezing. The objectives of this study were to determine the efficiency of freezing pig embryos using a microdroplet vitrification method and to investigate in vitro development of embryos from Chinese Meishan and occidental white crossbred females following cryopreservation at different stages of embryonic development. Preliminary studies using the microdroplet vitrification method for cryopreservation and embryo …

Producers’ Decisions, Allen Prosch

Nebraska Swine Reports

The business decisions pork producers make are extremely important. Decisions increase in importance at the same time they become harder to make. In business management studies, time has been devoted to learn how such decisions can be made. Less study has been expended on how producers currently make decisions. In the United States, family producers have traditionally made decisions with information they could gather independently. The ability to create decision making information is difficult. Producers need to remember the key success item — that of effective management led by sound decisions. The process of decision making involves skills and abilities …

Effect Of Diet And Sire Line On Grow-Finish Performance, Mike Brumm, Larry Himmelberg, Tom Rathje, John Sonderman

Nebraska Swine Reports

Two experiments were conducted to determine the influence of sire line and dietary energy levels on grow-finish pig performance. In each experiment, dietary treatments were corn-soybean meal based diets with no added fat and corn-soybean meal based diets with fat added and soybean meal adjusted to maintain a similar lysine: calorie ratio. Fat additions to the added fat diets ranged from 3.75% for the 40 to 70 pound body weight period to 1.5% for pigs over 220 pounds body weight. Within each of five phases during the growing-finishing period, feed budgets were used to maintain a similar total caloric intake …