Effects of energy level on methionineutilization by growing steers

The objective of this study was to evaluate the effect of energy level on amino acid utilization in growing steers. Six ruminally cannulated Holstein steers (503 lb) were limit-fed (6.2 lb/day dry matter) a diet based on soybean hulls (83%), wheat straw (7.6%), and cane molasses (4.1%). The treatments consisted of the infusion of two methionine levels (0 or 3 g/d) and three energy levels (0, 1.3, or 2.6 Mcal ME/day) in a 2 x 3 factorial arrangement. Energy was supplied through ruminal infusion of acetate, propionate, and butyrate and through abomasal infusion of glucose and fat in increasing amounts. No interactions between methionine and energy level were observed. Nitrogen balance was increased by methionine supplementation, indicating that this amino acid limited protein deposition. A linear increase in nitrogen retention was found with the increase in energy. These improvements in protein deposition were related to reductions in urinary nitrogen excretion, reduced plasma-urea concentrations, and greater circulating concentrations of insulin and insulin-like growth factor-I. The results of this study suggest that amino acid utilization can be improved by increasing energy. These effects could be partly explained by variations in plasma concentration of key hormones involved in the control of protein deposition.

• Publication year

  2004

• Venue

  Unknown venue

• Publication date

  Unknown publication date

• Fields of study

  Agricultural and Food Sciences, Chemistry, Biology

• Identifiers
  DOI 10.4148/2378-5977.1614
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

• No references are available for this paper.

• Dietary energy and protein gradients drive metabolic adaptation in growing-finishing yaks on the Qinghai-Tibet plateau

  2025cites this paper
• Exploring the growing forest musk deer (Moschus berezovskii) dietary protein requirement based on gut microbiome

  2023cites this paper
• The Response of Ruminal Microbiota and Metabolites to Different Dietary Protein Levels in Tibetan Sheep on the Qinghai-Tibetan Plateau

  2022cites this paper
• Supplementation of n-3 fatty acid and ruminal undegradable to degradable protein ratio in young lambs raised under heat condition: effects on growth performance and urinary purine derivatives

  2022cites this paper
• Effect of guanidinoacetic acid supplementation on nitrogen retention and methionine methyl group flux in growing steers fed corn-based diets

  2022cites this paper
• Effects of Ca-salt of linseed oil supplementation and protein content in diet on performance, ruminal fermentation, microbial protein yield, and blood metabolites in young lambs

  2020cites this paper
• EFFECTS OF ENERGY SOURCES SUPPLEMENT FOR CAMELS FED BERSEEM HAY ON: 1. FEED INTAKE, NUTRIENTS DIGESTIBILITY AND CONCENTRATION OF SOME BLOOD CONSTITUENTS.

  2020cites this paper
• Effects of linseed oil and rumen-undegradable protein: rumen-degradable protein ratio on performance of Holstein dairy calves.

  2020cites this paper
• Effect of experimental design on responses to 2 concentrations of metabolizable protein in multiparous dairy cows.

  2019cites this paper
• Tibetan sheep require less energy intake than small-tailed Han sheep for N balance when offered a low protein diet

  2019cites this paper
• Effect of grinding process of steam-rolled barley grain on plasma glucose and leucine kinetics and protein synthesis in sheep

  2018cites this paper
• EFFECT OF FEEDING VARIOUS ENERGY LEVELS ON NUTRIENT UTILIZATION AND GROWTH IN MALE BUFFALO CALVES

  2014cites this paper
• Amino acids and proteins for the athlete

  2014cites this paper
• Availability to lactating dairy cows of methionine added to soy lecithins and mixed with a mechanically extracted soybean meal.

  2013cites this paper
• Investigating the appropriate mode of expressing lysine requirement of fish through non-linear mixed model analysis and multilevel analysis

  2012cites this paper
• Effects of feeding garlic stem and leaf silage on rates of plasma leucine turnover, whole body protein synthesis and degradation in sheep

  2011cites this paper
• Intermediary Metabolism of Plasma Acetic Acid, Glucose and Protein in Sheep Fed a Rice Straw-based Diet

  2010influential citation
• Nutrient digestibility and feedlot performance of lambs fed diets varying protein and energy contents

  2010cites this paper
• Effects of volatile fatty acids on IGF-I, IGFBP-3, GH, insulin and glucagon in plasma, and IGF-I and IGFBP-3 in different tissues of growing sheep nourished by total intragastric infusions.

  2010cites this paper
• Associative effects of supplementing rice straw-based diet with cornstarch on intake, digestion, rumen microbes and growth performance of Huzhou lambs.

  2010cites this paper
• Analysis of nitrogen utilization and excretion in growing dairy cattle.

  2008cites this paper
• Responses of whole body protein synthesis and degradation to plantain herb in sheep exposed to heat

  2008influential citation
• Interaction between protein and energy supply on protein utilization in growing cattle: A review

  2008cites this paper
• Comparison of the [2H5]Phenylalanine Model with the [1-13C]Leucine Method to Determine Whole Body Protein Synthesis and Degradation in Sheep Fed at Two Levels

  2007influential citation
• Effect of nitrogen-energy balance on the associative effects of feedstuffs in vitro

  2007cites this paper
• Excess amino acid supply improves methionine and leucine utilization by growing steers.

  2006cites this paper