Evan C. Titgemeyer
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View article: 61 Limiting amino acids for growing steers fed diets based on corn and corn gluten feed
61 Limiting amino acids for growing steers fed diets based on corn and corn gluten feed Open
Ruminants rely on microbial protein as a significant source of amino acids (AA), yet ambitious production goals may increase AA requirements beyond supplies of AA provided by microbial protein. Providing growing cattle with adequate quanti…
View article: 56 Evaluating the seasonality effect of vitamin D status in commercial feedlot steers and heifers
56 Evaluating the seasonality effect of vitamin D status in commercial feedlot steers and heifers Open
Vitamin D is an essential vitamin required for optimal health and performance in cattle. Cattle synthesize vitamin D from exposure to sunlight, but the amount can be influenced by day length, seasonal variation, geographical region, hide c…
View article: 44 An evaluation of fiber recovered from dairy manure as a roughage source in finishing beef cattle diets
44 An evaluation of fiber recovered from dairy manure as a roughage source in finishing beef cattle diets Open
Roughages are an essential aspect of finishing beef cattle diets and their cost are largely driven by supply. Lignium Energy (Santiago, Chile) has developed a process to recover fiber from dairy manure which could potentially serve as a mo…
View article: Restricting bunk space allotments to 15 or 25 centimeters per head has minimal effects on growth performance in limit-fed growing beef heifers
Restricting bunk space allotments to 15 or 25 centimeters per head has minimal effects on growth performance in limit-fed growing beef heifers Open
View article: Effect of Guanidinoacetic Acid Supplementation on the Performance of Calves Fed Milk Replacer
Effect of Guanidinoacetic Acid Supplementation on the Performance of Calves Fed Milk Replacer Open
Guanidinoacetic acid (GAA) is the direct precursor to creatine, which serves as an energy reserve mechanism in the body. We evaluated the effects of GAA supplementation on the growth performance of calves fed milk replacer. Forty-five Hols…
View article: Investigation of HCAR2 antagonists as a potential strategy to modulate bovine leukocytes
Investigation of HCAR2 antagonists as a potential strategy to modulate bovine leukocytes Open
View article: Restricting Bunk Space Allotments to 6 or 10 Inches has Minimal Impact on Growth Performance in Limit-Fed Receiving Cattle
Restricting Bunk Space Allotments to 6 or 10 Inches has Minimal Impact on Growth Performance in Limit-Fed Receiving Cattle Open
Objective:The objective of our experiment was to determine if bunk allotments of 6, 10, 14, or 18 in per head in pens containing 18 to 28 head impacts growth performance of growing calves limit-fed a high-energy dietbased on corn and corn …
View article: Supplementation of Methionine or Choline Did Not Improve Health or Growth Performance in High-Risk, Newly Received Beef Heifers
Supplementation of Methionine or Choline Did Not Improve Health or Growth Performance in High-Risk, Newly Received Beef Heifers Open
Objective:This study was conducted to determine if supplemental methionine or choline improves health or growth performance in high-risk, newly received beef heifers.\nStudy Description:In a 3-year experiment, 1,440 beef heifers (480 per y…
View article: Effect of wheat middling incorporation into wet corn distillers grains with solubles on apparent diet digestibility and ruminal fermentation characteristics in growing and finishing diets
Effect of wheat middling incorporation into wet corn distillers grains with solubles on apparent diet digestibility and ruminal fermentation characteristics in growing and finishing diets Open
Two separate cross-over experiments were conducted to evaluate the effects of incorporating wheat middlings into wet corn distillers grains with solubles (WDGS) on apparent diet digestibility and ruminal fermentation characteristics in gro…
View article: Effects of heating soybeans on postruminal amino acid bioavailability, performance, and ruminal fermentation in lactating cows
Effects of heating soybeans on postruminal amino acid bioavailability, performance, and ruminal fermentation in lactating cows Open
Soybeans can provide ruminally degradable protein, lipid, and metabolizable amino acid (AA) to lactating dairy cows; however, soy-based trypsin inhibitors can limit protein digestion in nonruminants. Eight ruminally cannulated lactating Ho…
View article: Almond hulls and shells as an alternative fiber source in limit-fed growing beef cattle diets
Almond hulls and shells as an alternative fiber source in limit-fed growing beef cattle diets Open
Almond hulls and shells are a by-product of almond production that can be incorporated as a feed ingredient in beef cattle diets. Three experiments were conducted to determine the effects of hammermill screen size on almond hull and shell …
View article: Effect of traditional roughage-based or limit-fed, high-energy diets on growth performance and digestion in newly received growing cattle and subsequent implications on feedlot growth performance and carcass characteristics
Effect of traditional roughage-based or limit-fed, high-energy diets on growth performance and digestion in newly received growing cattle and subsequent implications on feedlot growth performance and carcass characteristics Open
The objective was to determine the effects of ad libitum-fed roughage-based diets or limit-fed high-energy diets on growth performance, behavior, health, and digestion in newly received growing cattle and subsequent implications on feedlot…
View article: Effect of shade and limit feeding in growing beef heifers during periods of heat stress
Effect of shade and limit feeding in growing beef heifers during periods of heat stress Open
Experiments were conducted during the summers of 2021 and 2022 to evaluate the effects of feeding strategy and shade on growth performance, animal comfort, water usage, apparent diet digestibility, and ruminal fermentation characteristics …
View article: Evaluation of Soybean Ingredients in Pet Foods Applications: Systematic Review
Evaluation of Soybean Ingredients in Pet Foods Applications: Systematic Review Open
Soybean use has been low in pet foods, even though they are an excellent source of protein, polyunsaturated fatty acids, and gut fermentable fibers. The purpose of this evaluation was to conduct a systematic review of the public literature…
View article: 368 Effects of Supplemental Methionine Or Choline on Health and Performance of High-Risk Receiving Beef Heifers
368 Effects of Supplemental Methionine Or Choline on Health and Performance of High-Risk Receiving Beef Heifers Open
Methionine and choline are methyl group sources, and their supplementation improves health and immune function in transition dairy cattle. Our objective was to determine if supplemental methionine or choline could improve health and growth…
View article: 14 Predicting Performance Responses of Growing Cattle to Amino Acid Supplementation
14 Predicting Performance Responses of Growing Cattle to Amino Acid Supplementation Open
Amino acid utilization by cattle can be studied by: 1) assessing amino acid requirements with foundational research and using the resultant information to predict animal performance, or 2) evaluating changes in animal performance in respon…
View article: Evaluation of Fermentability of Whole Soybeans and Soybean Oligosaccharides by a Canine In Vitro Fermentation Model
Evaluation of Fermentability of Whole Soybeans and Soybean Oligosaccharides by a Canine In Vitro Fermentation Model Open
Soybean oligosaccharides (OS) have been recognized as a prebiotic that can be fermented in the colon, resulting in short-chain fatty acid (SCFA) production that can be used as an energy source for colonocytes, supporting cell differentiati…
View article: Effects of Limit Feeding and Shade Allocation on Growing Calf Performance, Water Usage, and Animal Comfort
Effects of Limit Feeding and Shade Allocation on Growing Calf Performance, Water Usage, and Animal Comfort Open
Objective:The objective of this study was to evaluate the impact of limit feeding in conjunction withshade allotment on animal performance, animal comfort, and water usage during periods of heat stress.\nStudy Description:During the summer…
View article: Effects of Almond Hull Inclusion on Growth Performance of Limit-Fed Growing Cattle
Effects of Almond Hull Inclusion on Growth Performance of Limit-Fed Growing Cattle Open
Objective:The objective of this experiment was to evaluate the effects of almond hull inclusion and almond hull processing on growth performance of limit-fed growing beef cattle during a 56-day growing period.\nStudy Description:A total of…
View article: Effects of Biuret and Lasalocid (Bovatec) Inclusion into a Commercial Mineral Supplement on Growth Performance of Yearling Calves Grazing in the Kansas Flint Hills
Effects of Biuret and Lasalocid (Bovatec) Inclusion into a Commercial Mineral Supplement on Growth Performance of Yearling Calves Grazing in the Kansas Flint Hills Open
Objective:The objective of this experiment was to measure the effects of non-protein nitrogen (NPN; i.e., biuret) or NPN + ruminal modifier (i.e., biuret + lasalocid) inclusion in a commercial mineral mix on growth performance of yearling …
View article: 341 Effects of Supplemental Betaine on Protein Deposition and Plasma Amino Acid Concentrations in Growing Steers with Modulated Methyl Group Status
341 Effects of Supplemental Betaine on Protein Deposition and Plasma Amino Acid Concentrations in Growing Steers with Modulated Methyl Group Status Open
Methyl group donors (e.g., methionine, betaine) may improve performance of growing beef cattle. Our objective was to evaluate effects of betaine supplementation on protein deposition and plasma amino acids in growing steers with altered me…
View article: 343 Effect of Ruminally-Protected Lysine Supplementation to Limit-fed Growing Cattle on Growth and Subsequent Finishing Performance
343 Effect of Ruminally-Protected Lysine Supplementation to Limit-fed Growing Cattle on Growth and Subsequent Finishing Performance Open
Lysine may be limiting for cattle fed diets based on corn products. Our objective was to supplement ruminally protected lysine to cattle limit-fed a corn-based diet during the growing phase and assess performance during growing and subsequ…
View article: Effect of guanidinoacetic acid supplementation on nitrogen retention and methionine methyl group flux in growing steers fed corn-based diets
Effect of guanidinoacetic acid supplementation on nitrogen retention and methionine methyl group flux in growing steers fed corn-based diets Open
Six ruminally cannulated Holstein steers (256 ± 14 kg) were used in a 6 × 6 Latin square design to assess effects of guanidinoacetic acid (GAA) supplementation on N retention and methionine (Met) methyl group flux in growing cattle fed cor…
View article: Effect of supplemental methionine on health and performance of receiving beef heifers
Effect of supplemental methionine on health and performance of receiving beef heifers Open
Methionine supplementation can improve immune function in transition dairy cattle. Our objective was to determine if supplemental methionine could improve health and performance of newly received growing cattle. Crossbred heifers (n = 384;…
View article: Editorial: Nitrogen utilisation in ruminants
Editorial: Nitrogen utilisation in ruminants Open
Protein nutrition of ruminant animals is managed differently across geographies and types of production systems.Common to all ruminant production systems are concerns related to sustainability (e.g., greenhouse gas emissions from animals a…
View article: 119 A Meta-Regression Analysis to Evaluate the Influence of Branched-Chain Amino Acids in Lactation Diets on Sow and Litter Growth Performance
119 A Meta-Regression Analysis to Evaluate the Influence of Branched-Chain Amino Acids in Lactation Diets on Sow and Litter Growth Performance Open
The branched-chain amino acids (BCAA) Ile, Leu, and Val are 3 dietary essential amino acids for lactating sows; however, effects of dietary BCAA on sow and litter growth performance in the literature are equivocal. Thus, a meta-regression …
View article: A meta-regression analysis to evaluate the influence of branched-chain amino acids in lactation diets on sow and litter growth performance
A meta-regression analysis to evaluate the influence of branched-chain amino acids in lactation diets on sow and litter growth performance Open
The branched-chain amino acids (BCAA) Ile, Leu, and Val are three dietary essential amino acids for lactating sows; however, effects of dietary BCAA on sow and litter growth performance in the literature are equivocal. Thus, a meta-regress…
View article: Effect of Post-Ruminal Casein Infusion on Milk Yield, Milk Composition, and Efficiency of Nitrogen Use in Dairy Cows
Effect of Post-Ruminal Casein Infusion on Milk Yield, Milk Composition, and Efficiency of Nitrogen Use in Dairy Cows Open
Adequate supply of amino acids can improve the efficiency of nitrogen use. Casein is the predominant milk protein, and its supplementation can improve milk protein synthesis and nitrogen efficiency. We evaluated the effects of post-ruminal…
View article: A Limit-Fed, High-Energy Diet Fed During the Growing Phase Does Not Negatively Affect Subsequent Feedlot Growth Performance or Carcass Merit Compared to Feeding a Traditional Roughage-Based Diet Ad Libitum During the Growing Phase
A Limit-Fed, High-Energy Diet Fed During the Growing Phase Does Not Negatively Affect Subsequent Feedlot Growth Performance or Carcass Merit Compared to Feeding a Traditional Roughage-Based Diet Ad Libitum During the Growing Phase Open
Objective:The objective of this experiment was to compare the subsequent growth performance and carcass impacts of a high-energy diet limit-fed at 2.2% of body weight (BW) or a traditional roughage-based diet fedad libitumduring the growin…
View article: Digestibility of Dry Matter is Better and Manure Output is Lower in Growing Cattle Limit-Fed a High-Energy Diet During the Growing Phase Compared to a Traditional Roughage-Based Diet Fed for Ad Libitum Intake
Digestibility of Dry Matter is Better and Manure Output is Lower in Growing Cattle Limit-Fed a High-Energy Diet During the Growing Phase Compared to a Traditional Roughage-Based Diet Fed for Ad Libitum Intake Open
Objective:Evaluate the impact on intake and digestion of a high-energy diet limit-fed at 85% of thead libitumdaily consumption of a roughage-based diet on a dry matter (DM) basis compared to a traditional roughage-based growing diet in gro…