Nicolás DiLorenzo
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View article: Effect of exogenous glucoamylase on ruminal in situ and in vitro dry matter and starch degradability of cereal grains in beef cattle
Effect of exogenous glucoamylase on ruminal in situ and in vitro dry matter and starch degradability of cereal grains in beef cattle Open
Glucoamylase supplementation can potentially improve DM and starch degradability in cereal grains commonly used as ingredients in beef cattle diets.
View article: PSI-19 Plasma haptoglobin concentration as a potential biomarker for stress caused by horn fly infestation in lactating beef cows.
PSI-19 Plasma haptoglobin concentration as a potential biomarker for stress caused by horn fly infestation in lactating beef cows. Open
The horn fly parasite has a negative impact on cattle because of its irritating and painful bites, which can reduce animal performance and welfare due to the resultant stress. This experiment aimed to evaluate the relationship between plas…
View article: PSXIII-19 Effect of a soluble trace-mineral based supplement on water intake, growth performance, and mineral status of newly weaned beef calves.
PSXIII-19 Effect of a soluble trace-mineral based supplement on water intake, growth performance, and mineral status of newly weaned beef calves. Open
Early oral hydration and the provision of key nutrients may reduce the negative impact of stress related to post-weaning management, marketing, and transportation in newly received calves. This study evaluated a strategy to supply water an…
View article: Interconnection between pastures, grazing ecosystem, animal welfare, meat quality, and human health
Interconnection between pastures, grazing ecosystem, animal welfare, meat quality, and human health Open
View article: 276 Parasite control as a potential strategy to mitigate methane emissions in lactating beef cows.
276 Parasite control as a potential strategy to mitigate methane emissions in lactating beef cows. Open
The reduction in enteric methane (CH4) emissions from cattle continues to be one of the top priorities in order to contribute to the sustainability of beef production in the U.S. The cow-calf segment of the beef industry is responsible for…
View article: 288 Impact of Brahman genetics on feed efficiency and methane emissions of heifers with implications for the Florida cow-calf producers.
288 Impact of Brahman genetics on feed efficiency and methane emissions of heifers with implications for the Florida cow-calf producers. Open
Feed efficiency is one of the most important traits for livestock selection. While Bos taurus cattle often exhibit superior performance and higher-quality products than Bos indicus, they are more susceptible to harsh environmental conditio…
View article: 402 Award Talk: The role of liquid feeds in the beef cattle nutrition in the U.S.: A 50-year journey.
402 Award Talk: The role of liquid feeds in the beef cattle nutrition in the U.S.: A 50-year journey. Open
Liquid feeds have been used in cattle nutrition for over a century and have proved to be an important segment of our feed industry, with more value and applications being discovered as feeding systems evolve. The first patent on the use of…
View article: PSVI-18 Water intake analysis of high-risk beef calves.
PSVI-18 Water intake analysis of high-risk beef calves. Open
Water is a critical factor in livestock health and performance. While water intake (WI) models exist for most beef cattle categories, limited research has focused on newly received calves at an individual level. This study analyzed WI, dry…
View article: 292 Characterizing methane emissions through In vivo and ex vivo models during a transition from a high-forage to a high-grain diet.
292 Characterizing methane emissions through In vivo and ex vivo models during a transition from a high-forage to a high-grain diet. Open
Most studies measuring methane (CH4) emissions from beef cattle have identified a transition period during which animals adapt from a high-forage to a high-grain diet. During this transition, methane production progressively decreases and …
View article: PSXII-5 In vitro digestibility of dry matter and fiber components and gas production of hays used in equine diets and incubated in equine cecal inoculum.
PSXII-5 In vitro digestibility of dry matter and fiber components and gas production of hays used in equine diets and incubated in equine cecal inoculum. Open
The objective was to evaluate the effect of hay type, commonly used in equine diets, on in vitro dry matter digestibility (DMD), neutral detergent fiber digestibility (NDFD), acid detergent fiber digestibility (ADFD), and gas production (m…
View article: 289 Efficacy of increasing levels of a urea-biuret mixture on beef cattle performance and enteric methane emissions.
289 Efficacy of increasing levels of a urea-biuret mixture on beef cattle performance and enteric methane emissions. Open
Supplementation with non-protein nitrogen (NPN) has been used as an alternative to supply nitrogen in low-protein diets for ruminants. Urea is the primary source of NPN supplemented to cattle, but its rapid degradation rate in the rumen li…
View article: PSXIV-17 Red seaweed Gracilaria spp. can mitigate enteric methane emissions in beef cattle.
PSXIV-17 Red seaweed Gracilaria spp. can mitigate enteric methane emissions in beef cattle. Open
Enteric methane (CH4) in ruminants might lead to losses of dietary gross energy, reducing production efficiency. Red seaweed contains bromoform, a chemical known for decreasing enteric CH4 emissions in ruminants. This study evaluated the e…
View article: Life cycle assessment of contrasting grazing systems within a yearling stocker stage of beef cattle production
Life cycle assessment of contrasting grazing systems within a yearling stocker stage of beef cattle production Open
View article: 43 Relationship between reproductive parameters and residual feed intake in yearling beef bulls
43 Relationship between reproductive parameters and residual feed intake in yearling beef bulls Open
Residual feed intake (RFI) is a metric utilized to estimate feed efficiency, in which differences between actual and expected feed intake are assessed. Improving feed efficiency while ensuring optimal reproductive performance is essential …
View article: 177 Impact of feed and drench multi-additive formulations on animal health, performance and water intake in high-risk beef cattle
177 Impact of feed and drench multi-additive formulations on animal health, performance and water intake in high-risk beef cattle Open
The receiving period in beef cattle production poses nutritional and health challenges, particularly for stressed high-risk newly arrived calves. Typically, feed intake in these calves is less than 1% of their body weight for several days …
View article: Integrating forage legumes reduces dependence on N fertilizer and increases the stability of grazing systems
Integrating forage legumes reduces dependence on N fertilizer and increases the stability of grazing systems Open
View article: Methane Synthesis as a Source of Energy Loss Impacting Microbial Protein Synthesis in Beef Cattle—A Review
Methane Synthesis as a Source of Energy Loss Impacting Microbial Protein Synthesis in Beef Cattle—A Review Open
Ruminal methanogenesis represents considerable energy loss within the fermentative processes mediated by microbial populations, by means of which up to 12% of gross energy intake is driven away from microbial protein synthesis (MPS). This …
View article: Sorghum Silage as a Feed Alternative for Backgrounding Heifers in Florida
Sorghum Silage as a Feed Alternative for Backgrounding Heifers in Florida Open
Sorghum has been gaining attention in Florida as a crop alternative harvested as whole plant silage for inclusion in backgrounding diets as the main roughage source to fill the forage gap in winter feeding programs. The objective of this p…
View article: Invasive Pigweed (Amaranthus spinosus) as a Potential Source of Plant Secondary Metabolites to Mitigate Enteric Methane Emissions in Beef Cattle
Invasive Pigweed (Amaranthus spinosus) as a Potential Source of Plant Secondary Metabolites to Mitigate Enteric Methane Emissions in Beef Cattle Open
Global beef demand will rise by 40 million tons in 30 years, increasing methane (CH4) emissions. Pigweed (Amaranthus spinosus), an invasive weed abundant in southeastern U.S. pastures, may mitigate CH4. Yet, its potential as a feed additiv…
View article: Feeding rumen-protected choline during the periconceptional period programs postnatal phenotype of suckled beef calves
Feeding rumen-protected choline during the periconceptional period programs postnatal phenotype of suckled beef calves Open
View article: Use of animal performance and gas flux for estimating dry matter intake in growing steers
Use of animal performance and gas flux for estimating dry matter intake in growing steers Open
Dry matter intake (DMI) estimation in ruminants is important for providing a balanced diet, increasing animal performance, and reducing nutrient excretion. Gas flux (CO2 and CH4 production) is related to DMI; however, there is limited info…
View article: Harnessing cactus biomass for biogas and biofertilizer production under temporal fermentation strategies
Harnessing cactus biomass for biogas and biofertilizer production under temporal fermentation strategies Open
View article: Utilizing polyclonal antibodies to improve rumen function
Utilizing polyclonal antibodies to improve rumen function Open
Polyclonal antibody preparations (PAP) can contribute to reduce antimicrobial resistance and improve rumen function by targeting specific bacteria or molecules. Avian-derived antibodies (IgY) from egg yolks offer advantages over traditiona…
View article: Short communication: thermotolerance and residual feed intake in <i>Bos-indicus</i> crossbred beef heifers
Short communication: thermotolerance and residual feed intake in <i>Bos-indicus</i> crossbred beef heifers Open
This study investigated the relationship between thermotolerance and residual feed intake (RFI) in Bos indicus crossbred replacement beef heifers. In the summer of 2019, vaginal body temperatures were recorded from 654 heifers to identify …
View article: Effect of Cashew Nutshell Extract, Saponins and Tannins Addition on Methane Emissions, Nutrient Digestibility and Feeding Behavior of Beef Steers Receiving a Backgrounding Diet
Effect of Cashew Nutshell Extract, Saponins and Tannins Addition on Methane Emissions, Nutrient Digestibility and Feeding Behavior of Beef Steers Receiving a Backgrounding Diet Open
The beef industry contributes to greenhouse gas emissions through enteric methane emissions, exacerbating climate change. Anacardic acid in cashew nutshell extract (CNSE), saponins and tannins (ST) are plant secondary metabolites that show…
View article: Limpograss [Hemarthria altissima] Silage and Protein Supplementation as an Alternative Feed Option for Growing Heifers in North Florida
Limpograss [Hemarthria altissima] Silage and Protein Supplementation as an Alternative Feed Option for Growing Heifers in North Florida Open
Limpograss (Hemarthria altissima) is a warm-season perennial grass that has the potential to feed livestock during scarcity periods. This study evaluated the intake, nutrient digestibility, and animal performance of beef heifers fed ‘Gibtu…
View article: SF6 Tracer Technique to Estimate Methane Emission in a Dual-Flow Continuous Culture System: Test and Application
SF6 Tracer Technique to Estimate Methane Emission in a Dual-Flow Continuous Culture System: Test and Application Open
This study aimed to evaluate the sulfur hexafluoride (SF6) tracer technique for estimating methane (CH4) emissions in dual-flow continuous culture systems (DFCCS). In experiment 1 (Exp1), fermenters were filled with water, and known CH4 co…
View article: 119 Plasma metabolomics and feed behavior patterns in feed efficient or inefficient beef bulls
119 Plasma metabolomics and feed behavior patterns in feed efficient or inefficient beef bulls Open
Residual feed intake (RFI) is a measure of feed efficiency (FE). Differences in plasma metabolites concentration found in animals with contrasting RFI are potential biomarkers of FE. Furthermore, feed behavior patterns could also be used t…
View article: 139 Impact of supplementing rumen-protected methionine during the periconceptional period in the post-weaning period in female calves
139 Impact of supplementing rumen-protected methionine during the periconceptional period in the post-weaning period in female calves Open
This study aimed to identify the impact of supplementing rumen-protected methionine (RPM) during the periconceptional period on beef cows in their progeny. Evidence suggests that changes in maternal nutrition in the periconceptional period…
View article: 79 Dietary buffer comparison and tannins supplementation modulating subacute ruminal acidosis and fermentation in beef cattle
79 Dietary buffer comparison and tannins supplementation modulating subacute ruminal acidosis and fermentation in beef cattle Open
As the demand of nutrients by the population will continue to grow over the years, efficient practices are required in the food chain to satisfy the demand. This practice involves the intensification of production systems. Moreover, intens…