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- 2014; Beef; Omega-3 fatty acids; Rumen; Carcass traits (2)
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- 2014; Beef; Bovine respiratory disease; Zuprevo; Calves (1)
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- 2014; Beef; Color; Shelf life; Flavor; Gluteus medius; Aging time (1)
- 2014; Beef; Corn steep liquor; Lespedeza cuneata; Grazing; Diet (1)
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- 2014; Beef; Feed additives; Growth promotants; Meat quality; Color; Shelf life; Altech PN Beef Program (1)
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- 2014; Beef; Ground beef; Subprimals; Color; Consumer satisfaction; Sensory attributes (1)
- 2014; Beef; Ground beef; Vacuum storage; Subprimals; Quality grades (1)
- 2014; Beef; Heifers; Fertility; Temperment; Heritability (1)
- 2014; Beef; Lespedeza cuneata; Corn steep liquor; Grazing (1)
- 2014; Beef; Omega-3 fatty acids; Choline; Flaxseed; Diet (1)
Articles 1 - 30 of 78
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Aging Time Affects Color Stability And Sensory Properties Of Ground Beef Patties Adjusted To A Similar Fat Composition By Combining Subprimals From The Chuck Roll And Knuckle (2014), Brandi D. Cleveland, Robert S. Mcewan, John A. Unruh, C. M. Garner, Sally L. Stroda
Aging Time Affects Color Stability And Sensory Properties Of Ground Beef Patties Adjusted To A Similar Fat Composition By Combining Subprimals From The Chuck Roll And Knuckle (2014), Brandi D. Cleveland, Robert S. Mcewan, John A. Unruh, C. M. Garner, Sally L. Stroda
Kansas Agricultural Experiment Station Research Reports
Palatability traits of flavor, juiciness, and tenderness are associated with consumer satisfaction. Although grinding offers an opportunity to mechanically minimize differences in tenderness, muscle source and product quality may still affect the sensory properties of ground beef. The objective of this study was to determine the effects of two quality grades (Premium Choice and Select) and vacuum storage aging time (7, 21, and 42 days) before processing on ground beef patty display color from chuck roll and knuckle subprimals combined to obtain a common percentage of fat.
Formation Of Fines During The Pelleted Feed Manufacturing Process And The Resulting Differences In Nutrient Composition Of Fines And Pellets (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jason C. Woodworth, Steven S. Dritz, Jake A. Erceg, L Mckinney, G Smith
Formation Of Fines During The Pelleted Feed Manufacturing Process And The Resulting Differences In Nutrient Composition Of Fines And Pellets (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jason C. Woodworth, Steven S. Dritz, Jake A. Erceg, L Mckinney, G Smith
Kansas Agricultural Experiment Station Research Reports
A 3-wk study was conducted at a commercial feed mill in northwest Iowa to determine where the formation of fines occurs during pelleted feed manufacturing and if differences are present in nutrient composition between fines and pellets. During the study, 1,781pelleted feed samples were collected from 4 swine and 2 turkey diets. Samples were collected from 4 different locations throughout the mill to determine progression of fines formation during the manufacturing process. These locations included the pellet mill, pellet cooler, fat coater, and at load-out. Samples were taken on 7 to 10 different runs for each diet throughout the 3-wk …
Effects Of Different Feed Mills And Conditioning Temperature Of Pelleted Diets On Nursery Pig Performance And Feed Preference From 14 To 50 Lb (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz
Effects Of Different Feed Mills And Conditioning Temperature Of Pelleted Diets On Nursery Pig Performance And Feed Preference From 14 To 50 Lb (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 644 pigs (PIC 1050 or 327 × 1050, initial BW~14 lb) were used in 3 experiments to determine possible explanations for poorer pig performance in previous studies with pigs fed pelleted diets compared with those fed meal diets. Therefore, we examined feed pelleted from different mills as well as conditioning temperature as factors influencing our previous results. In Experiment 1, pens of pigs were randomly allotted to 1 of 3 dietary treatments with 10 pens per treatment and 7 pigs per pen. The 3 dietary treatments used the identical corn-soybean meal—based formulation and were mixed from the …
Effects Of Standardized Ileal Digestible Tryptophan:Lysine Ratio On Growth Performance And Economics Of 25- To 45-Lb Nursery Pigs (2014), Marcio Antonio Dornelles Goncalves, Michael D. Tokach, Steven S. Dritz, K J. Touchette, Nora M. Bello, Robert D. Goodband, Joel M. Derouchey, Jason C. Woodworth
Effects Of Standardized Ileal Digestible Tryptophan:Lysine Ratio On Growth Performance And Economics Of 25- To 45-Lb Nursery Pigs (2014), Marcio Antonio Dornelles Goncalves, Michael D. Tokach, Steven S. Dritz, K J. Touchette, Nora M. Bello, Robert D. Goodband, Joel M. Derouchey, Jason C. Woodworth
Kansas Agricultural Experiment Station Research Reports
The use of feed-grade tryptophan (Trp) in swine diets has become more economical recently due to the increased cost of soybean meal and the increased usage of dried distillers grains with solubles (DDGS). Therefore, the objectives of this study were to estimate the effects of the standardized ileal digestible (SID) tryptophan:lysine (Trp:Lys) ratio on growth performance and economics of 25- to 45-lb nursery pigs housed in a commercial environment. A total of 1,088 pigs (PIC 337 × 1050; initially 24.8 ± 1.2 lb BW) were used in a 21-d growth trial. Pigs were weaned at 16 d of age and …
Comparative Effects Of Dietary Copper, Zinc, Essential Oils, And Chlortetracycline On Nursery Pig Growth Performance (2014), Julie Ann Feldpausch, Jon A. Dejong, Michael D. Tokach, Steven S. Dritz, Jason C. Woodworth, Raghavendra G. Amachawadi, Harvey M. Scott, Jim L. Nelssen, Robert D. Goodband
Comparative Effects Of Dietary Copper, Zinc, Essential Oils, And Chlortetracycline On Nursery Pig Growth Performance (2014), Julie Ann Feldpausch, Jon A. Dejong, Michael D. Tokach, Steven S. Dritz, Jason C. Woodworth, Raghavendra G. Amachawadi, Harvey M. Scott, Jim L. Nelssen, Robert D. Goodband
Kansas Agricultural Experiment Station Research Reports
A total of 350 weaned pigs (PIC 1050; initially 13.3 lb) were used in a 47-d study to compare the effects of feeding antibiotic alternatives (copper, zinc, and essential oils), alone or in combination, on nursery pig performance. Pigs were allotted to pens at weaning (d 0) and fed a common starter diet with no antimicrobial for 5 d before the start of the experiment. On d 5, pens of 5 pigs were allotted to 1 of 10 dietary treatments in a randomized complete block design with 7 replications per treatment. Dietary treatments were arranged in a 2 × 2 …
Generating Equations Using Meta-Analyses To Predict Iodine Value Of Pork Carcass Back, Belly, And Jowl Fat, Chad B. Paul, J R. Bergstrom, Michael D. Tokach, Steven S. Dritz, Derris D. Burnett, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, John M. Gonzalez
Generating Equations Using Meta-Analyses To Predict Iodine Value Of Pork Carcass Back, Belly, And Jowl Fat, Chad B. Paul, J R. Bergstrom, Michael D. Tokach, Steven S. Dritz, Derris D. Burnett, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, John M. Gonzalez
Kansas Agricultural Experiment Station Research Reports
Meta-analyses used data from existing literature to generate equations to predict finishing pig back, belly, and jowl fat iodine value (IV) followed by a prospective study to validate these equations. The final database included 24, 21, and 29 papers for back, belly, and jowl fat IV, respectively. For experiments that changed dietary fatty acid composition, initial diets (INT) were defined as those fed before the change in diet composition and final diets (FIN) were those fed after. The predictor variables tested were divided into 5 groups: (1) diet fat composition (dietary % C16:1, C18:1, C18:2, C18:3, essential fatty acid [EFA], …
Influence Of Dietary Fat Source And Feeding Duration On Pig Growth Performance, Carcass Composition, And Fat Quality (2014), Ethan W. Stephenson, Mathew A. Vaughn, Derris D. Burnett, Chad B. Paulk, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, Robert D. Goodband, Jason C. Woodworth, John M. Gonzalez
Influence Of Dietary Fat Source And Feeding Duration On Pig Growth Performance, Carcass Composition, And Fat Quality (2014), Ethan W. Stephenson, Mathew A. Vaughn, Derris D. Burnett, Chad B. Paulk, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, Robert D. Goodband, Jason C. Woodworth, John M. Gonzalez
Kansas Agricultural Experiment Station Research Reports
A total of 160 finishing pigs (PIC 327 × 1050; initially 100.5 lb) were used in an 84-d experiment to evaluate the effects of dietary fat source and feeding duration on growth performance, carcass characteristics, and fat quality. Dietary treatments included a corn-soybean meal control diet with no added fat or a 3 × 3 factorial with main effects of fat source (4% tallow, 4% soybean oil, or a blend of 2% tallow and 2% soybean oil) and feeding duration (d 0 to 42, 42 to 84, or 0 to 84). One pig was identified in each pen on d …
Effects Of Standardized Ileal Digestible Tryptophan:Lysine Ratio On Growth Performance And Economics Of Finishing Pigs (2014), Marcio Antonio Dornelles Goncalves, Michael D. Tokach, Steven S. Dritz, K J. Touchette, Nora M. Bello, Joel M. Derouchey, Jason C. Woodworth, Robert D. Goodband
Effects Of Standardized Ileal Digestible Tryptophan:Lysine Ratio On Growth Performance And Economics Of Finishing Pigs (2014), Marcio Antonio Dornelles Goncalves, Michael D. Tokach, Steven S. Dritz, K J. Touchette, Nora M. Bello, Joel M. Derouchey, Jason C. Woodworth, Robert D. Goodband
Kansas Agricultural Experiment Station Research Reports
The high usage of dried distillers grains with solubles (DDGS) in swine diets and the economical availability of feed-grade tryptophan have allowed swine nutritionists to include L-tryptophan in practical diet formulations. The objective of these experiments was to determine the effects of different standardized ileal digestible tryptophan:lysine (SID Trp:Lys) ratios on growth performance and economics in finishing pigs. Three 21-d growth experiments with a total of 1,166, 1,099, and 1,132 gilts (337 × 1050; PIC, Hendersonville, TN) and initial BW of 66.0 ± 1.8, 122.2 ± 4.3, and 156.9 ± 2.8 lb were used in Experiments 1, 2, and 3, …
Effects Of Increasing Crystalline Amino Acids In Sorghum- Or Corn-Based Diets On Nursery Pig Growth Performance (2014), Kyle E. Jordan, Jeremiah E. Nemechek, Marcio Antonio Dornelles Goncalves, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, Jason C. Woodworth
Effects Of Increasing Crystalline Amino Acids In Sorghum- Or Corn-Based Diets On Nursery Pig Growth Performance (2014), Kyle E. Jordan, Jeremiah E. Nemechek, Marcio Antonio Dornelles Goncalves, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, Jason C. Woodworth
Kansas Agricultural Experiment Station Research Reports
A total of 300 pigs (PIC 1050; initially 23.3 lb BW) were used in a 21-d study to compare the effects of increasing crystalline amino acids in sorghum- and corn-based diets on nursery pig growth performance. Treatments with 5 pigs per pen and 10 pens per treatment were arranged in a 2 × 3 factorial with main effects of grain source (sorghum vs. corn) and crystalline amino acid supplementation (low, medium, or high). Amino acid ratios to lysine as well as standardized ileal digestibility coefficients used were set by NRC (20123). Because replacing increasing amounts of soybean meal with crystalline …
Effects Of Postpartum Treatment With Non-Steroidal Anti-Inflammatory Drugs On Milk Production And Culling Risk In Dairy Cattle (2014), Abigail J. Carpenter, Caroline M. Ylioja, Claudio F. Vargas, Laman K. Mamedova, L. Mendonca, Johann F. Coetzee, L. Hollis, R. Gehring, B. Bradford
Effects Of Postpartum Treatment With Non-Steroidal Anti-Inflammatory Drugs On Milk Production And Culling Risk In Dairy Cattle (2014), Abigail J. Carpenter, Caroline M. Ylioja, Claudio F. Vargas, Laman K. Mamedova, L. Mendonca, Johann F. Coetzee, L. Hollis, R. Gehring, B. Bradford
Kansas Agricultural Experiment Station Research Reports
Inflammation during early lactation is common in dairy cattle, and a high degree of inflammation during this time has recently been associated with both lower productivity and greater risk of disease during that lactation. Early lactation treatments with two non-steroidal anti-inflammatory drugs were compared with a placebo treatment to evaluate effects on whole-lactation productivity and retention in the herd. Both meloxicam and sodium salicylate increased whole-lactation milk and milk protein yields by 6 to 9%, despite being administered for only 1 or 3 days in early lactation, respectively. In addition, meloxicam treatment tended to decrease the risk of cows leaving …
Yeast Product Supplementation Influences Feeding Behavior And Measures Of Immune Function In Transition Dairy Cows (2014), Kai Yuan, Mary Beth Muckey, Luis Mendonca, Lindsey E. Hulbert
Yeast Product Supplementation Influences Feeding Behavior And Measures Of Immune Function In Transition Dairy Cows (2014), Kai Yuan, Mary Beth Muckey, Luis Mendonca, Lindsey E. Hulbert
Kansas Agricultural Experiment Station Research Reports
Yeast supplementation has been shown to increase feed intake and production in some studies with early lactation dairy cows, but the mechanisms underlying this effect remain unknown. The objective of this study was to assess the effects of supplementing a yeast product derived from Saccharomyces cerevisiae on production, feeding behavior, and immune function in cows during the transition to lactation. When fed for 3 weeks before calving through 6 weeks after calving, supplementation altered feeding behavior as well as responsiveness to vaccination and gut immunoglobulin secretion. Results suggest that yeast products can modulate several aspects of immune function and promote …
Kansas Fertilizer Research 2013, Dorivar Ruiz Diaz
Kansas Fertilizer Research 2013, Dorivar Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
The 2013 edition of the Kansas Fertilizer Research Report of Progress is a compilation of data collected by researchers across Kansas. Information was contributed by faculty and staff from the Department of Agronomy, Kansas agronomy experiment fields, and Agricultural Research Southeast Agricultural Research Center and research-extension centers. We greatly appreciate the cooperation of many K-State Research and Extension agents, farmers, fertilizer dealers, fertilizer equipment manufacturers, agricultural chemical manufacturers, and representatives of various firms who contributed time, effort, land, machinery, materials, and laboratory analyses. Without their support, much of the research in this report would not have been possible. Among companies …
Genetic Relationships Among Temperament, Immune Function, And Carcass Merit (2014), Kerri E. Bates, Robert L. Weaber, Jennifer M. Bormann, Daniel W. Moser, J. L. Salak-Johnson, C. C.L. Chase, R. K. Peel, H. Van Campen, G. H. Loneragan, J. J. Wagner
Genetic Relationships Among Temperament, Immune Function, And Carcass Merit (2014), Kerri E. Bates, Robert L. Weaber, Jennifer M. Bormann, Daniel W. Moser, J. L. Salak-Johnson, C. C.L. Chase, R. K. Peel, H. Van Campen, G. H. Loneragan, J. J. Wagner
Kansas Agricultural Experiment Station Research Reports
Cattle producers historically have selected for docile temperaments simply for management convenience because calmer animals are conducive to safe environments for their peers as well as their handlers. As many producers would acknowledge, there seems to be a relationship between temperament and health, and calmer cattle tend to frequent the working chute for treatment of disease less often. Positive correlations have been found in cattle between temperament traits (chute scores, pen scores, and chute exit velocities) and cortisol concentration in the blood, suggesting that more excitable cattle are easily stressed (Curley et al., 2006; Cooke et al., 2009). In addition, …
Consumption And Performance By Beef Heifers Provided Dried Distillers Grains In A Self-Fed Supplement Containing Either 10 Or 16% Salt While Grazing Flint Hills Native Grass (2014), N. T. Melton, Brandon E. Oleen, Christopher I. Vahl, Sean P. Montgomery, Ethan R. Schlegel, Dale A. Blasi
Consumption And Performance By Beef Heifers Provided Dried Distillers Grains In A Self-Fed Supplement Containing Either 10 Or 16% Salt While Grazing Flint Hills Native Grass (2014), N. T. Melton, Brandon E. Oleen, Christopher I. Vahl, Sean P. Montgomery, Ethan R. Schlegel, Dale A. Blasi
Kansas Agricultural Experiment Station Research Reports
Optimizing cattle performance and maintaining pasture health are important considerations when striving to maximize profitability and sustainability on a Flint Hills pasture yearling grazing operation. The two growing seasons prior to initiation of this study were droughty and stressful to pastures. This situation provided an opportunity to evaluate the value of dried distillers grains with solubles (DDGS) as a self-fed supplement to ensure that nutritional resources were adequate for a 78-day grazing period. Grazing density was increased from 200 to either 225 or 250 lb of beef while simultaneously providing salt-limited DDGS supplements containing 10 and 16% salt, respectively.
Subprimal Type And Quality Grade Affect Fatty Acid Composition And Cooked Firmness Of Ground Beef Patties (2014), C. M. Garner, John A. Unruh, Melvin C. Hunt, Elizabeth A.E. Boyle, Terry A. Houser, Sally L. Stroda
Subprimal Type And Quality Grade Affect Fatty Acid Composition And Cooked Firmness Of Ground Beef Patties (2014), C. M. Garner, John A. Unruh, Melvin C. Hunt, Elizabeth A.E. Boyle, Terry A. Houser, Sally L. Stroda
Kansas Agricultural Experiment Station Research Reports
Subprimals can be stored in a vacuum package for extended periods of time at low storage temperatures. The number of days that subprimals may be held before processing can be influenced by the distribution chain, accessibility, and subprimal price fluctuations. Extended vacuum storage before grinding could affect biochemical, oxidative, and microbial properties of these subprimals and influence sensory properties. Our objective was to determine the effects of two subprimal types (chuck roll and knuckle), two quality grades (Premium Choice and Select), and three vacuum-packaged storage aging times before processing (7, 21, and 42 days) on ground beef patty sensory properties.
Determining The Optimal Sampling Method To Estimate The Mean And Standard Deviation Of Pig Body Weights Within A Population (2014), Chad B. Paulk, Michael D. Tokach, Steven S. Dritz, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband
Determining The Optimal Sampling Method To Estimate The Mean And Standard Deviation Of Pig Body Weights Within A Population (2014), Chad B. Paulk, Michael D. Tokach, Steven S. Dritz, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband
Kansas Agricultural Experiment Station Research Reports
The accuracy and precision of pig subsampling methods can determine the swine producer's ability to sell pigs at optimal market BW and reduce economic discounts. The first objective of this experiment was to determine the time required to weigh pigs for different sampling methods used to estimate the mean and SD of a population. The second objective was to define the optimal sampling method considering the time required to weigh pigs as well as the precision and accuracy of each sampling method. A total of 68 pens of pigs (359 × 1050, PIC, Hendersonville, TN; 169.8 lb BW) in 2 …
Effects Of Hard Red Winter Wheat Particle Size In Meal Diets On Finishing Pig Growth Performance, Diet Digestibility, And Caloric Efficiency (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jason C. Woodworth, Chad B. Paulk, Cassandra K. Jones, Charles R. Stark, Steven S. Dritz
Effects Of Hard Red Winter Wheat Particle Size In Meal Diets On Finishing Pig Growth Performance, Diet Digestibility, And Caloric Efficiency (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jason C. Woodworth, Chad B. Paulk, Cassandra K. Jones, Charles R. Stark, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 288 pigs (PIC 327 × 1050; initially 96.4 lb) were used in an 83-d study to determine the effects of hard red winter wheat particle size on finishing pig growth performance, diet digestibility, and caloric efficiency. Pens of pigs were balanced by initial BW and randomly allotted to 1 of 3 treatments with 8 pigs per pen and 12 pens per treatment. The same wheat-soybean meal—based diets were used for all treatments. Diets were fed in three phases in meal form. The 3 dietary treatments were hard red winter wheat ground with a hammer mill to 730, …
Effects Of High Levels Of Dietary Niacin From Nicotinic Acid On Growth And Meat Quality Of Finishing Pigs Raised During Summer (2014), Joshua R. Flohr, Joel M. Derouchey, Michael D. Tokach, Jason C. Woodworth, Steven S. Dritz, Robert D. Goodband, Terry A. Houser, C A. Felder, K J. Prusa
Effects Of High Levels Of Dietary Niacin From Nicotinic Acid On Growth And Meat Quality Of Finishing Pigs Raised During Summer (2014), Joshua R. Flohr, Joel M. Derouchey, Michael D. Tokach, Jason C. Woodworth, Steven S. Dritz, Robert D. Goodband, Terry A. Houser, C A. Felder, K J. Prusa
Kansas Agricultural Experiment Station Research Reports
A total of 1,232 pigs (PIC 337 × 1050; initially 59.4 lb) were used in a 98-d study to evaluate the influence of increasing dietary niacin supplementation on growth, body temperatures, and meat quality of pigs raised in a commercial facility during the summer. There were 28 pigs per pen and 11 pens per treatment. Basal diets contained corn, soybean meal, and dried distillers grains with solubles (DDGS). The four dietary treatments were formed by adding increasing levels of nicotinic acid as the source of niacin (Lonza, Allendale, NJ) at 14, 172, 331, and 490 mg/lb of complete feed. On …
Effects Of An Algae-Modified Montmorillonite Clay On Growth Performance Of Nursery Pigs Fed Diets Contaminated With Low Levels Of Deoxynivalenol (2014), Suzy Q. Fowler, Hyatt L. Frobose, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz, Robert D. Goodband, Jim L. Nelssen
Effects Of An Algae-Modified Montmorillonite Clay On Growth Performance Of Nursery Pigs Fed Diets Contaminated With Low Levels Of Deoxynivalenol (2014), Suzy Q. Fowler, Hyatt L. Frobose, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz, Robert D. Goodband, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
A total of 360 barrows (PIC 1050; initially 25.1 lb and 45 d of age) were used in a 21-d growth trial to evaluate the effects of an algae-modified montmorillonite clay (AMMC) on nursery pig performance when fed diets contaminated with low levels of deoxynivalenol (DON). Pigs were allotted to pens by weight, and pens were randomly assigned to 1 of 9 dietary treatments arranged in a 3 × 3 factorial with main effects of DON (0, 1.5 ppm, or 3.0 ppm) and AMMC inclusion (0, 0.17%, or 0.50% ). There were 5 pigs per pen and 8 pens per …
2014 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service
2014 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service
Kansas Agricultural Experiment Station Research Reports
No abstract provided.
Docility And Heifer Pregnancy Estimates In Angus Heifers (2014), Kari L. White, Jennifer M. Bormann, Daniel W. Moser, Robert L. Weaber
Docility And Heifer Pregnancy Estimates In Angus Heifers (2014), Kari L. White, Jennifer M. Bormann, Daniel W. Moser, Robert L. Weaber
Kansas Agricultural Experiment Station Research Reports
Reproductive success is economically relevant in beef cattle operations because the number of calves born influences the value of calves sold at weaning. Improvements in reproductive performance can be up to four times more important than improvements in end-product traits in an operation selling calves at weaning. Selecting for fertility is difficult because it is influenced by a variety of factors. Temperament is one of the factors affecting fertility that requires further investigation. Researchers report that physiological responses associated with temperament can influence the probability of cows becoming pregnant. Stress hormones such as cortisol in the bloodstream can negatively affect …
Temperament Can Be An Indicator Of Feedlot Performance And Carcass Merit In Beef Cattle (2014), Kerri E. Bates, Robert L. Weaber, Jennifer M. Bormann, Daniel W. Moser, J. L. Salak-Johnson, C. C.L. Chase, R. K. Peel, H. Van Campen, G. H. Loneragan, J. J. Wagner
Temperament Can Be An Indicator Of Feedlot Performance And Carcass Merit In Beef Cattle (2014), Kerri E. Bates, Robert L. Weaber, Jennifer M. Bormann, Daniel W. Moser, J. L. Salak-Johnson, C. C.L. Chase, R. K. Peel, H. Van Campen, G. H. Loneragan, J. J. Wagner
Kansas Agricultural Experiment Station Research Reports
Cattle producers historically have selected for docile temperaments simply for management convenience because calmer animals are conducive to safe environments for their peers as well as their handlers. As many producers would acknowledge, however, there seems to be a relationship between temperament and cattle health, and calmer cattle tend to frequent the working chute for treatment of disease less often. Positive correlations have been found in cattle between temperament traits (chute scores, pen scores, and chute exit velocities) and cortisol concentration in the blood, suggesting that more excitable cattle are easily stressed (Curley et al., 2006; Cooke et al., 2009). …
Variation In Timed Artificial Insemination Pregnancy Rates In Specific Groups Of Suckled Beef Cows (2014), Scott L. Hill, Jeffrey S. Stevenson
Variation In Timed Artificial Insemination Pregnancy Rates In Specific Groups Of Suckled Beef Cows (2014), Scott L. Hill, Jeffrey S. Stevenson
Kansas Agricultural Experiment Station Research Reports
Insemination of beef cows at a predetermined time is a management tool to reduce labor costs associated with conventional heat detection available to cattle producers. Multiple research trials have examined the timing of the administration of the individual components of the developed protocols associated with timed artificial insemination (TAI). In the current research, we examined various classifications of postpartum beef cows and analyzed their reproductive performance when submitted to TAI protocols. The 7-day CO-Synch + controlled internal drug release (CIDR) insert protocol and the 5-day CO-Synch + CIDR protocol have been shown to effectively initiate ovulation in cycling and non-cycling …
Utilization Of Omega-3 Fatty Acids Is Improved By Embedding Flaxseed In A Matrix Of Dolomitic Lime Hydrate (2014), Christian A. Alvarado-Gilis, Cadra L. Van Bibber-Krueger, K. A. Miller, E. San Vito, G. Feltrin, D. Klamfoth, James S. Drouillard
Utilization Of Omega-3 Fatty Acids Is Improved By Embedding Flaxseed In A Matrix Of Dolomitic Lime Hydrate (2014), Christian A. Alvarado-Gilis, Cadra L. Van Bibber-Krueger, K. A. Miller, E. San Vito, G. Feltrin, D. Klamfoth, James S. Drouillard
Kansas Agricultural Experiment Station Research Reports
Omega-3 fatty acids are essential nutrients for humans, but American diets are often deficient in these important long-chain fats. Incorporating greater proportions of omega-3 fatty acids into beef offers a means of increasing daily consumption of essential fats, while also enhancing the perceived value of beef. In cattle, dietary polyunsaturated fats are extensively hydrogenated into saturated fats by microbes in the rumen. This effectively decreases the efficiency of transfer for fats from the animal's diet into edible beef tissues, because the bacteria convert more than 90% of the polyunsaturated fats into saturated fats before they are absorbed into the animal's …
Electrostatic Spray Cabinet Evaluation To Verify Uniform Delivery Of Chemical And Biological Solutions To Pre-Chilled Meat Animal Carcasses (2014), Randall C. Phebus, Nicholas J. Sevart, Nicholas W. Baumann, Randall K. Phebus
Electrostatic Spray Cabinet Evaluation To Verify Uniform Delivery Of Chemical And Biological Solutions To Pre-Chilled Meat Animal Carcasses (2014), Randall C. Phebus, Nicholas J. Sevart, Nicholas W. Baumann, Randall K. Phebus
Kansas Agricultural Experiment Station Research Reports
Shiga toxin-producing Escherichia coli (STEC) are a group of bacteria that cause an estimated 265,000 illnesses, 3,600 hospitalizations, and 30 deaths annually in the United States. STEC are frequently associated with raw or undercooked meat products, prompting the beef industry to develop and apply various antimicrobial intervention technologies during processing operations. The application of chemical antimicrobials to carcasses and fabricated cuts using an electrostatic spray (ESS) system (Figure 1) offers several potential advantages for controlling disease-causing pathogens, including enhanced chemical deposition (coverage) profiles, reduced overspray wastage of foodgrade antimicrobials, and reduced water requirements. The objectives of this study were to …
Aging For 35 Days Does Not Improve Tenderness Of Strip Loin Steaks From Heifers Fed Zilmax (2014), Sara M. Ebarb, Kelsey Phelps, Cadra L. Van Bibber-Krueger, James S. Drouillard, John M. Gonzalez
Aging For 35 Days Does Not Improve Tenderness Of Strip Loin Steaks From Heifers Fed Zilmax (2014), Sara M. Ebarb, Kelsey Phelps, Cadra L. Van Bibber-Krueger, James S. Drouillard, John M. Gonzalez
Kansas Agricultural Experiment Station Research Reports
As the world's population continues to expand, demand for food animal products is also increasing; therefore, efficient production is vital. Implants and beta-adrenergic agonists such as Zilmax (Merck Animal Health, Summit, NJ) improve average daily gain and feed efficiency in feedlot cattle. Use of these growth technologies also increases hot carcass weight and muscle mass. Although use of implants and Zilmax increases efficiency of beef production, these products also negatively affect meat quality characteristics such as marbling and tenderness. Some research reports conclude that wet aging meat for extended periods of time can alleviate tenderness issues caused by exogenous growth …
Comparison Of Conventional And Alltech Beef Pn Finishing Programs: Meat Color Characteristics (2014), Kelsey Phelps, K. A. Miller, Cadra L. Van Bibber-Krueger, J. Jennings, James S. Drouillard, John M. Gonzalez, Brandon E. Depenbusch
Comparison Of Conventional And Alltech Beef Pn Finishing Programs: Meat Color Characteristics (2014), Kelsey Phelps, K. A. Miller, Cadra L. Van Bibber-Krueger, J. Jennings, James S. Drouillard, John M. Gonzalez, Brandon E. Depenbusch
Kansas Agricultural Experiment Station Research Reports
To maximize efficiency and profit when producing beef, American producers currently employ a multitude of production programs that use feed additives such as Rumensin or Tylan (Elanco Animal Health, Greenfield, IN) and growth promotants such as implants and Optaflexx (Elanco Animal Health). Rumensin and Tylan fed in combination can improve average daily gain and feed efficiency, and utilizing growth promotants enhances feed efficiency, average daily gain, hot carcass weight, and yield grades of carcasses. Although these products improve production efficiency, they can affect meat quality characteristics such as retail shelf life, necessitating better understanding of how management decisions in the …
Comparison Of Soybean Oil And Different Sources Of Corn Oil On Nursery Pig Growth Performance (2014), Kyle E. Jordan, Marcio Antonio Dornelles Goncalves, Jeremiah E. Nemechek, Jon A. Dejong, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz, Joel M. Derouchey, Jason C. Woodworth
Comparison Of Soybean Oil And Different Sources Of Corn Oil On Nursery Pig Growth Performance (2014), Kyle E. Jordan, Marcio Antonio Dornelles Goncalves, Jeremiah E. Nemechek, Jon A. Dejong, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz, Joel M. Derouchey, Jason C. Woodworth
Kansas Agricultural Experiment Station Research Reports
A total of 350 pigs (PIC 1050; initially 26.45 ± 0.09 lb and 45 d of age) were used in a 21-d study to compare the effects of soy oil and 2 sources of corn oil on nursery pig growth performance. The 7 dietary treatments consisted of a corn-soybean meal—based control diet with no added oil or the control diet with 2.5 or 5% soybean oil (NE = 3,422 kcal/lb) or corn oil from 2 different sources (NE = 3,383 kcal/kg for both sources). There were 5 pigs per pen and 10 pens per treatment. Pig weight and feed disappearance …
Validating A Dietary Approach To Determine Amino Acid:Lysine Ratios For Pigs (2014), Marcio Antonio Dornelles Goncalves, Michael D. Tokach, Steven S. Dritz, K J. Touchette, Joel M. Derouchey, Jason C. Woodworth, Robert D. Goodband
Validating A Dietary Approach To Determine Amino Acid:Lysine Ratios For Pigs (2014), Marcio Antonio Dornelles Goncalves, Michael D. Tokach, Steven S. Dritz, K J. Touchette, Joel M. Derouchey, Jason C. Woodworth, Robert D. Goodband
Kansas Agricultural Experiment Station Research Reports
Standardized ileal digestible (SID) amino acid:lysine (AA:Lys) ratio experiments are commonly conducted to estimate the AA requirement of pigs relative to lysine (Lys) and allow for accurate diet formulation. The objective of the studies herein was to validate a dietary approach to determine the optimal SID AA:Lys ratio for pigs using tryptophan (Trp) as a model. Four 21-d experiments were conducted in which pigs (337 × 1050; PIC) were fed corn-soybean meal—based diets with 30% corn dried distillers grains with solubles (DDGS). A total of 1,188, 1,232, 1,204, and 1,183 pigs with initial BW of 28.5 ± 0.4, 50.1 ± …
Evaluation Of Fermented Soybean Meal Sources In Diets For Nursery Pigs (2014), Andrea M. Jeffrey, Hyatt L. Frobose, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz, Jason C. Woodworth
Evaluation Of Fermented Soybean Meal Sources In Diets For Nursery Pigs (2014), Andrea M. Jeffrey, Hyatt L. Frobose, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz, Jason C. Woodworth
Kansas Agricultural Experiment Station Research Reports
A total of 296 mixed-sex pigs (PIC 327 × 1050; 14.5 ± 3.0 lb BW and 21 d of age) were used in a 31-d experiment evaluating the effect of further processing methods for soybean meal on weanling pig growth performance. There were 11 replicate pens per treatment with 6 or 7 pigs per pen. At weaning, pigs were allotted to pens by initial weight to 1 of 4 treatments in a completely randomized design. Experimental treatments were: (1) negative control (NC: no specialty protein sources), (2) fermented soybean meal processing method 1 (FSBM 1), (3) fermented soybean meal processing …