Life Sciences Commons^™

Effects Of Amino Acid Ratios And Lysine Level On Nursery Pig Growth Performance, A. B. Clark, M. D. Tokach, J. M. Derouchey, S. S. Dritz, J. C. Woodworth, R. D. Goodband, K. J. Touchette

Kansas Agricultural Experiment Station Research Reports

A total of 2,268 pigs (PIC 327 × L42, initially 16.2 lb BW) was used in a 28-d growth study with 54 pigs per feeder (experimental unit) and 6 replications per treatment. Pigs were randomly allotted to pens at weaning and fed a common starter diet for 8 d. Pens were then blocked by BW and allotted to 1 of 7 dietary treatments in a randomized complete block design. Treatments were arranged in two levels of standardized ileal digestible (SID) Lys (low,1.25% and high, 1.35%) and SID amino acid (AA) ratios relative to Lys (industry, 95% of maximum performance, and …

Effects Of Crystalline Amino Acid Concentrations With Or Without Formaldehyde Treatment Of Diets On Nursery Pig Growth Performance And Fecal Bacterial Concentration, H. Williams, J. C. Woodworth, J. M. Derouchey, S. S. Dritz, M. D. Tokach, R. D. Goodband, T. E. Burkey, S. Li

Kansas Agricultural Experiment Station Research Reports

A total of 1,235 nursery pigs (PIC 359 × 1050; initially 26.9 lb BW) were used in a 28-d study evaluating the effects of crystalline amino acid concentrations with or without formaldehyde treatment of diets on nursery pig growth performance, feed bacteria concentration, lysine content, and fecal microbial diversity. Sal CURB (Kemin Industries Inc., Des Moines, IA) is a commercial formaldehyde product that is commonly utilized in the poultry industry for Salmonella control in feed but has also been shown to reduce PEDV infectivity in swine diets.

Pigs were weaned at approximately 21 d, fed a common starter diet for …

Evaluating The Effects Of Replacing Fish Meal With Hp 300 On Nursery Pig Performance, A. M. Jones, J. C. Woodworth, J. M. Derouchey, M. D. Tokach, R. D. Goodband, S. S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 350 barrows (Line 200 × 400 DNA, Columbus, NE; initially 13.6 lb) were used in a 21-d growth trial with 5 pigs per pen and 14 pens per treatment. Pigs were weaned at approximately 21-d of age, placed in nursery pens according to BW and fed a common pelleted starter diet for 3 d, at which time, pigs were weighed and then pens were blocked by BW to 1 of 5 dietary treatments in a randomized complete block design. A composite sample of fish meal and HP 300 was collected and analyzed for AA content and proximate …

The Effects Of Feeding Benzoic Acid And Essential Oils On Growth Performance, Survivability And Fecal Characteristics Of Grower Pigs, M. T. Thayer, A. Langemeier, S. Scotten, J. L. Nelssen, Z. Ou, J. R. Bergstrom

Kansas Agricultural Experiment Station Research Reports

A total of 200 pigs (DNA Line 200 × 400) with an initial body weight of 81 lb were used to determine the effects of feeding benzoic acid and an essential oil blend (Vevo- Vitall and CRINA Piglets AF, DSM Nutritional Products, Parsippany, NJ) to grower pigs. There were 10 pigs per pen and 10 pens per treatment in this 28-d grower trial. Pigs were allotted by BW and randomly assigned to 1 of 2 dietary treatments. Dietary treatments included a control diet, or the control diet with added benzoic acid (6.00 lb/ ton) paired with an essential oil blend …

Evaluation Of High Standardized Ileal Digestible Tryptophan:Lysine Ratios With Ractopamine Hcl On Growth And Carcass Performance Of Pigs From 240 To 295 Lb, J. Soto, M. D. Tokach, K. J. Touchette, S. S. Dritz, J. C. Woodworth, J. M. Derouchey, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 935 pigs (PIC 1050 × 337, initially 237.2 lb BW) were used in a 22-d trial to determine the effects of feeding high levels of standardized ileal digestible (SID) Trp:Lys ratio in diets with ractopamine HCl (RAC, Paylean, Elanco Animal Health, Greenfield, IN) on growth and carcass performance of finishing pigs. Pens of 23 or 24 pigs were allotted by BW and randomly assigned to 1 of 5 dietary treatments with 8 replications per treatment. The dietary treatments included 5 SID Trp:Lys ratios (20, 22, 24, 26, and 28% of Lys). All diets were formulated to 0.90% …

Effects Of Dietary Soybean Meal Concentration With Dietary Crude Protein Fixed At 12% On Growth And Carcass Performance Of Finishing Pigs From 250 To 300 Lb, J. Soto, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 280 pigs (DNA 600 × 241, initially 251.8 lb) were used in a 23-d trial to determine the effects of dietary soybean meal (SBM) concentration with dietary crude protein, fixed at 12%, on growth performance of finishing pigs from 250 to 300 lb. Pens of 7 or 8 pigs were allotted by BW and randomly assigned to 1 of 6 dietary treatments with 6 replications per treatment. Treatments consisting of 5 levels of SBM (10.6, 7.7, 4.9, 2.7, and 0%) with 12% CP and a negative control treatment with 4.0% SBM and 10% CP. Corn gluten meal …

Cleaning Reduces Mycotoxin Contamination In Corn, A. Yoder, M. D. Tokach, J. M. Derouchey, C. B. Paulk, C. R. Stark, C. K. Jones

Kansas Agricultural Experiment Station Research Reports

A single load of corn naturally contaminated with aflatoxin (1,074 ppb), fumonisin (8.3 ppm), and ochratoxin A (206 ppb) was procured from central Oklahoma to evaluate the role of cleaning to remove mycotoxin contamination in corn. Corn was divided into twenty 333-lb lots, which were then cleaned using an EBM Gentle Roll corn cleaner to remove overs (material > 1/2 inches) and unders (material < 3/16 inches). The resultant 4 treatments included: 1) uncleaned corn; 2) overs from cleaned corn; 3) cleaned corn; and 4) unders from cleaned corn. Samples of each fraction were analyzed for mycotoxin content using multiclass liquid chromatography tandem mass spectrometry.

Cleaning generated approximately 6% screenings (unders + overs), and reduced (P < 0.05) aflatoxin by an average of 26%. Cleaning also reduced (P < 0.05) fumonisin by 45%, but did not impact ochratoxin A. Unders had nearly 4 times the aflatoxin and 7.5 times the fumonisin as the uncleaned corn. In conclusion, cleaning corn may substantially reduce mycotoxin contamination, but the resultant screenings should be used cautiously.

A Survey Of Dry Processed Corn Particle Size And Fecal Starch In Midwestern U.S. Feedlots, E. F. Schwandt, D. U. Thomson, S. J. Bartle, C. D. Reinhardt

Kansas Agricultural Experiment Station Research Reports

Optimizing grain processing practices in cattle feeding operations is critical to reaching maximum feed utilization efficiency. An increased degree of grain processing has consistently shown improved dry matter and starch digestibility; however, it exists with conflicting results on improving performance in finishing cattle. These inconsistencies are likely due to diet composition, such as roughage and co-product level, that could offset the effects of reduced particle size on rate of fermentation thus reducing the risk of digestive dysfunction.

Finishing diets are commonly formulated with processed grain to increase utilization of starch and improve animal performance. Processing methods including steam-flaking, grinding, or …

Water Intake In Growing Beef Cattle, C. M. Ahlberg, K. Allwardt, A Broocks, K Bruno, A. Taylor, C. Krehbiel, C. Richards, S. Place, U. Desilva, D. Vanoverbeke, R. Mateescu, M. M. Rolf

Kansas Agricultural Experiment Station Research Reports

Water is an essential part of livestock and human diets and is often thought of as an inexpensive, readily available renewable natural resource. However, the amount of competition between humans, wildlife, feed production, and livestock for high-quality water is increasing, not only from the effects of drought but from the pressure of a growing global population (Nardone et al., 2010). With limited resources available for production agriculture, there is a need to identify and select for efficient animals that can produce more product with fewer inputs. Although some work has been done in dairy cattle, very little data is available …

Particle Size Of Dry-Rolled Corn Affects Starch Digestibility But Not Feedlot Performance, E. F. Schwandt, J. Wagner, T. Engle, S. J. Bartle, D. U. Thomson, C. D. Reinhardt

Kansas Agricultural Experiment Station Research Reports

Dry-rolling corn is a common practice in feedlots located in the Midwestern and Northern Plains regions of the United States. Optimizing total digestive tract starch utilization in diets containing dry-rolled corn is essential for maximizing efficiency. However, recommendations often suggest that grain be coarsely cracked to avoid producing an excessive amount of fine material that could potentially increase the rate of fermentation, reduce rumen pH, and cause digestive disturbances.

Wet distillers byproducts may be effectively used as a protein and energy source for feedlot finishing cattle and can replace a portion of the dry-rolled corn in the diet. The average …

Effects Of A Combination Of Essential Oils (Victus Liv), Increased Zinc Oxide And Copper Sulfate, Or Their Combination In Nursery Diets On Pig Performance, A. Langemeier, J. Morton, S. Scotten, M. T. Thayer, J. L. Nelssen

Kansas Agricultural Experiment Station Research Reports

A total of 280 weaned pigs (Line 600 × 241; DNA, Columbus, NE; initially 11.4 lb) were used in a 35-d study to compare the effects of feeding growth promoting alternatives (added trace minerals, copper and zinc, or essential oils (Victus LIV; DSM Nutritional Products, Parsippany, NJ), alone or in combination, on nursery pig performance in comparison to Carbadox, (Mecadox, Phibro Animal Health, Teaneck, NJ). Pigs were allotted to 1 of 7 dietary treatments in pens of 5 at weaning in a randomized complete block design with 8 replications per treatment. Dietary treatments were arranged with a negative control diet …

Effect Of Calsporin On Nursing Piglet Growth Performance And Fecal Microflora, M. B. Menegat, C. M. Vier, H. S. Cemin, D. Shawk, J. M. Derouchey, J. C. Woodworth, M. D. Tokach, S. S. Dritz, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 26 lactating sows (DNA 241, DNA Genetics, Columbus, NE) and litters were used in a discovery study to evaluate the effects of Calsporin, a direct-fed microbial containing Bacillus subtilis C-3102, on fecal microflora of nursing pigs. The treatments consisted of providing a daily oral dose of Calsporin or a placebo control to piglets during the nursing phase. Sows were randomly assigned to treatments based on farrowing date, parity, and initial BW. The treatments were applied individually to piglets once a day from d 2 after farrowing and equalization until weaning on d 19. Sow BW, sow ADFI, …

Effects Of Monosodium Glutamate On 14- To 56-Lb Nursery Pigs, A. B. Clark, M. D. Tokach, J. M. Derouchey, S. S. Dritz, J. C. Woodworth, R. D. Goodband, K. J. Touchette

Kansas Agricultural Experiment Station Research Reports

A total of 700 nursery pigs (PIC C-29 × 1050 × 1040, initially 13.6 lb BW) were used in a 42-d growth study to determine the effects of monosodium glutamate (MSG; Ajinomoto Heartland, LLC, Chicago, IL) on growth performance. Pigs were fed 1 of 5 dietary treatments: 0, 0.5, 1.0, 1.5, or 2.0% MSG. Experimental diets were fed in three phases from d 0 to 14, 14 to 28, and 28 to 42. Phase 1 was pelleted and phases 2 and 3 were fed in meal form. Diets were formulated to balance Na and Cl content with increasing MSG using …

Evaluation Of Elarom Ses With Or Without Tri-Basic Copper Chloride On Nursery Pig Growth Performance, H. Williams, J. C. Woodworth, J. M. Derouchey, S. S. Dritz, M. D. Tokach, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 360 weanling pigs (DNA 200 × 400; initially 11.5 lb BW) were used in a 42-d study evaluating the effects of feeding Elarom SES in combination with increasing tri-basic copper chloride on nursery pig performance and fecal consistency. Elarom SES (Trouw Nutrition USA, Highland, IL) is a specialty feed ingredient containing a blend of active ingredients designed to enhance growth performance and gut health. Tri-basic copper chloride (TBCC, Intellibond C, Micronutrients USA, LLC., Indianapolis, IN) is a form of copper (Cu) that has the potential for improved bioavailability and enhanced growth performance. Pigs were weaned at approximately …

Dietary Supplementation Of Choline Or Potassium In Low Crude Protein Diets On Growth And Carcass Performance Of Finishing Pigs From 245 To 295 Lb, J. Soto, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 284 pigs (DNA 600 × 241, initially 247.4 lb) were used in a 26-d trial to determine the effect of added choline or potassium on growth and carcass performance of finishing pigs fed low CP diets. Pens of 7 or 8 pigs were allotted by BW and randomly assigned to 1 of 4 dietary treatments with 9 replications per treatment. Experimental treatments included a 12% CP, positive control diet with 10.6% SBM; a 10% CP, negative control diet with 4.0% SBM; the negative control with added choline; or potassium such that the added choline or potassium matched …

Effects Of Standardized Total Tract Digestible Phosphorus On Growth Performance, Carcass Characteristics, Bone Mineralization, And Economics Of 53- To 287-Lb Pigs, C. M. Vier, F. Wu, M. B. Menegat, H. S. Cemin, S. S. Dritz, M. D. Tokach, M. A. Goncalves, U. A. Orlando, J. C. Woodworth, R. D. Goodband, J. M. Derouchey

Kansas Agricultural Experiment Station Research Reports

A total of 1,130 barrows and gilts (PIC; 359 × Camborough, initial pen average BW of 53.2 ± 1.61 lb) were used in a 111-d growth trial to determine the standardized total tract digestible (STTD) P requirement of growing-finishing pigs from 53 to 287 lb. Pens of pigs were randomly assigned to 1 of 6 dietary treatments in a randomized complete block design with BW as a blocking factor. There were 7 replicate pens per treatment and 26 to 27 pigs per pen (at least 13 barrows and gilts per pen). The experimental diets were corn-soybean meal-based and were fed …

Effect Of Chromium Propionate Level And Feeding Regimen On Finishing Pig Growth Performance And Carcass Characteristics, J. T. Gebhardt, J. C. Woodworth, M. D. Tokach, J. M. Derouchey, R. D. Goodband, H. S. Cemin, J. A. Loughmiller, S. S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,206 pigs (PIC 359 × 1050; initial BW = 107.9 lb) were used in an 84-d study to evaluate the effects of added dietary chromium (Cr; KemTRACE chromium propionate, Kemin Industries Inc., Des Moines, IA) and feeding regimen on growth performance of finishing pigs housed under commercial conditions. Pigs were placed in mixed-gender pens (27 pigs per pen), blocked by BW, and randomly assigned to 1 of 3 dietary treatments (15 pens per treatment). Diets were corn-soybean meal-based with added dried distillers gains with solubles, and were fed in 4 phases. Treatments were: 1) control, no Cr …

Producer Opinions On Antibiotic Use In The Beef Industry, T. Lee, C. D. Reinhardt, E. F. Schwandt, D. U. Thomson

Kansas Agricultural Experiment Station Research Reports

Antibiotic use in the beef industry is of increasing interest to consumers and has become a point of discussion for producers, veterinarians, and professional scientists in recent years. With the vast amount of information available on the internet and social media, consumers are becoming more knowledgeable about beef production practices and the use of antibiotics in the food animal industries. Furthermore, scientists have devoted a large amount of time and money to research to investigate consumer opinions and perspectives about management practices used in food animal production. However, many of these investigations fail to include the opinions and perspectives of …

Antioxidant Feeding Does Not Impact Incidence Or Severity Of Liver Abscesses, H. C. Muller, C. L. Van Bibber-Krueger, J. S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Liver abscesses are a large source of economic loss in feedlot cattle. Not only do liver abscesses lead to a decrease in feedlot performance, but these livers are condemned in the abattoir and can also lead to a further decrease in carcass value due to trim loss. Tylosin phosphate is a metaphylactic macrolide drug that effectively decreases the occurrence of liver abscesses. The drug is approved by the Food and Drug Administration for over-the-counter use. However, in January 2017 the FDA will require a veterinary feed directive for medically important antibiotics (antibiotics that are used in human health) used in …

Differences In Efficacy Between Gamithromycin, Tilmicosin, And Tulathromycin As Metaphylactic Treatments In High Risk Calves For Bovine Respiratory Disease, T. Miller, M. E. Hubbert, E. F. Schwandt, D. U. Thomson, C. D. Reinhardt

Kansas Agricultural Experiment Station Research Reports

The cost of Bovine Respiratory Disease to the beef industry due to death, poorer conversions, and therapy is estimated to cost more than $3 billion per year. Identifying and mitigating Bovine Respiratory Disease in cattle can be difficult due to the increased susceptibility for Bovine Respiratory Disease in high risk cattle. One management option to minimize an outbreak of respiratory disease is the use of metaphylaxis, the mass treatment of a group of calves to reduce the incidence and adverse effects of respiratory disease on high risk animals. Criteria used to determine the necessity of metaphylactic treatment against Bovine Respiratory …

Decline In Brahman Breed Influence Of Beef Calf Lots Marketed By Video Auction From 1995 To 2015, E. D. Mccabe, M. E. King, K. E. Fike, K. L. Hill, G. M. Rogers, K. G. Odde

Kansas Agricultural Experiment Station Research Reports

Brahman cattle are widely known for their ability to tolerate hot and humid climates as well as for their insect and parasite resistance. An estimated 40% of all beef cows in the United States are located in the southern region, which has a relatively hot climate. Historically, many of these beef cows have had at least some Brahman influence. The opportunity to evaluate potential changes in the influence of the Brahman breed on beef calves produced in the United States was available through lots of beef calves marketed through a video auction service. The objective was to characterize the potential …

Feeding A Novel Trace Mineral At Lower Levels To Grazing Stocker Cattle Does Not Impair Performance, C. S. Weibert, W. R. Hollenbeck, S. B. Laudert, J. D. Kubick, Dale Blasi

Kansas Agricultural Experiment Station Research Reports

When grazing stocker cattle on native Flint Hills pasture, optimizing growth rate is important in determining overall profitability. The correct selection of mineral supplements is an important decision that can be used to help promote overall productivity during a grazing season.

Brahman Genetics Negatively Impact Protein Degradation And Tenderness Of Longissimus Lumborum Steaks, But Do Not Influence Collagen Cross-Linking, K. J. Phelps, D. D. Johnson, M. A. Elzo, C. B. Paulk, J. M. Gonzalez

Kansas Agricultural Experiment Station Research Reports

Beef tenderness is an important factor contributing to consumer eating satisfaction of beef products. Tenderness is dependent on several factors including: breed-type, postmortem age time, myofibrillar muscle protein degradation, and collagen content. During the past 30 years, numerous studies have indicated steaks from cattle with a greater percentage of Brahman genetics are tougher than steaks from Bos taurus cattle. The cause of tougher steaks is commonly attributed to Brahman cattle having a greater calpastatin activity which inhibits calpains, the enzymes responsible for myofibrillar protein degradation during the postmortem aging process. Some researchers have reported calpastatin activity was poorly correlated to …

Evaluation Of Supplemental Energy Source For Grazing Stocker Cattle, L. W. Lomas, J. K. Farney, J. L. Moyer

Kansas Agricultural Experiment Station Research Reports

A total of 108 steers grazing smooth bromegrass pastures were used to evaluate the effects of supplemental energy source on available forage, grazing gains, subsequent finishing gains, and carcass characteristics in 2014, 2015, and 2016. Supplementation treatments evaluated were: no supplement, a supplement with starch as the primary source of energy, and a supplement with fat as the primary source of energy. Supplements were formulated to provide the same quantity of protein and energy per head daily. Supplementation with the starch-based or fat-based supplement during the grazing phase resulted in higher (P < 0.05) grazing gains than feeding no supplement during all three years. In 2014 and 2016, grazing gains of steers supplemented with the starch-based or fat-based supplement were similar (P > 0.05). In 2015, steers supplemented with the fat-based …

Effects Of Interseeding Ladino Clover Into Tall Fescue Pastures Of Varying Endophyte Status On Grazing Performance Of Stocker Steers, L. W. Lomas, J. L. Moyer

Kansas Agricultural Experiment Station Research Reports

Sixty-four yearling steers grazing tall fescue pastures were used to evaluate the effects of fescue cultivar and interseeding ladino clover on grazing gains and available forage. Fescue cultivars evaluated were high-endophyte ‘Kentucky 31,’ low-endophyte ‘Kentucky 31,’ ‘HM4,’ and ‘MaxQ.’ Steers that grazed pastures of low-endophyte ‘Kentucky 31,’ ‘HM4,’ or ‘MaxQ’ gained significantly more (P < 0.05) and produced more (P < 0.05) gain/a than those that grazed high-endophyte ‘Kentucky 31’ pastures. Gains of cattle that grazed low-endophyte ‘Kentucky 31,’ ‘HM4,’ or ‘MaxQ’ were similar (P > 0.05). High-endophyte ‘Kentucky 31’ pastures had more (P < 0.05) available forage than lowendophyte ‘Kentucky 31,’ ‘HM4,’ or ‘MaxQ’ pastures.

Genome Diversity And Molecular Detection Of Prrs Field Strains And Vaccine Strains, And Pcv3 And Pcv2 Strains, Y. Wang, F. Yuan, X. Liu, W. Zheng, H. Zhang, J. Zhang, K. Yoon, L. Peddireddi, Y. Fang, G. Anderson, J. Bai

Kansas Agricultural Experiment Station Research Reports

Molecular diagnosis of porcine reproductive and respiratory syndrome virus (PRRS) and porcine circo virus (PCV) are challenging due to high genetic diversity in the viral genomes. Differentiating PRRS vaccine strains is even more challenging and is currently done by DNA sequencing, which is expensive and time-consuming. A multiplexed system (Luminex) allowing multiple detection targets in the same reaction is available. However, this system is not fully developed for common swine pathogens. Therefore, an assay was built to detect the majority of field PRRS strains by using different pairs of primers, and at the same time, to provide differentiation of the …

Evaluating The Effects Of Fish Solubles On Nursery Pig Performance, A. M. Jones, J. C. Woodworth, M. D. Tokach, S. Herbert, J. Smith, D. Berry, R. D. Goodband, J. M. Derouchey, S. S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 700 barrows (Line 200 × 400, DNA, Columbus, NE; initially 14.3 lb) were used in a 21-d growth trial with 5 pigs per pen and 28 pens per treatment. Pigs were weaned at approximately 21 d of age, placed in nursery pens according to BW and fed a common pelleted starter diet for 3 d. Pigs were then weighed and pens were blocked by BW to 1 of 5 dietary treatments in a randomized complete block design. Dietary treatments included a corn-soybean meal-based control diet and 4 diets containing 6% LT Prime Menhaden Fishmeal (Daybrook Fisheries Inc., …

Prevalence Of Horns In A Pen Does Not Affect Incidence Of Carcass Bruising In Feedlot Cattle, M. E. Youngers, E. F. Schwandt, D. U. Thomson, J. C. Simroth, S. J. Bartle, M Siemens, C. D. Reinhardt

Kansas Agricultural Experiment Station Research Reports

Disbudding and dehorning are two common practices done to remove horns from cattle to prevent injury to handlers and other cattle and to reduce bruising of carcasses. Bruised carcasses result in substantial reduction in profit due to trim loss, increased sanitation risk, and loss in time on the rail during processing. Previous research has indicated that cattle with horns increased hide damage of cohorts and caused injury to handlers. Cattle with horns cause circular shaped bruises that lead to trim loss due to bruising. Cattle with tipped horns do not have a lower bruising rate than cattle with intact horns. …

Feeding Nucleotides With Corn Germ Meal Or Dried Corn Distillers Grains Does Not Promote Growth Performance Of Receiving And Growing Calves, M. L. Detray, S. P. Montgomery, E. Titgemeyer, A. E. Wertz-Lutz, Christopher Vahl, A. T. Schilling, W. R. Hollenbeck, Dale Blasi

Kansas Agricultural Experiment Station Research Reports

Corn germ meal is often used in swine and poultry diets, but very little information exists on the effects on beef cattle and on newly arrived stressed cattle. When formulating receiving and growing diets, calf health and stress are important factors to consider. Including nucleotides, an immune-boosting feed additive may aid in gastrointestinal health of an animal and furthermore improve growth performance. The objective of these experiments was to determine: 1) the effects of corn germ meal in comparison to dried corn distillers grains on growth performance and 2) the effects of nucleotides on growth performance, by receiving and growing …

Effects Of Standardized Ileal Digestible Lysine On 15- To 25-Lb Nursery Pigs, G. E. Nichols, C. M. Vier, A. B. Clark, M. B. Menegat, H. S. Cemin, C. K. Jones, J. M. Derouchey, M. D. Tokach, R. D. Goodband, J. C. Woodworth, S. S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 300 pigs (DNA 241 × 600; initial pen average BW of 15.4 lb) were used in a 22-d growth trial to determine the standardized ileal digestible (SID) lysine (Lys) requirement of nursery pigs from 15- to 25-lb. Pigs were weaned at approximately 21 d of age and allotted to pens based on BW and gender. There were 10 replicate pens per treatment and 6 pigs per pen. Pigs were fed a common pelleted diet for 10 d post-weaning. Subsequently, pens of pigs were randomly assigned to 1 of 6 experimental diets in a randomized complete block design, …