Objective: We investigated the effects of dietary rumen undegradable protein (RUP):rumen degradable protein (RDP) ratio on growth performance, nitrogen (N) metabolism, and rumen and blood parameters in Hanwoo (Korean cattle) steers.
Methods: Eight Hanwoo steers (average body weight, 393 kg) were allocated to two groups and fed with a high RUP:RDP ratio (46.9:53.1 based on crude protein) or a low RUP:RDP ratio (30.6:69.4) concentrate with iso-crude protein content in a 2×2 Latin square design in two successive periods.
Results: The high RUP:RDP group had higher (p<0.01) average daily gain, and lower (p<0.05) ruminal ammonia and plasma urea N concentrations than the low RUP:RDP group. The high RUP:RDP group had lower (p<0.05) urinary N excretion and urinary N per N intake and higher (p<0.1) tendency of retained N than the low RUP:RDP group. The high RUP:RDP group had higher (p<0.1) tendency of N utilization efficiency (retained N per N intake: 28.7% vs. 25.5%) than the low RUP:RDP group. The high RUP:RDP group had a lower (p<0.1) tendency of urinary N per total N excretion, but a higher tendency of fecal N per total N excretion.
Conclusion: A high ratio of dietary RUP:RDP may improve N utilization efficiency by reducing urinary N excretion, which may be beneficial for the environment through reducing atmospheric ammonia emissions.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.5713/ab.24.0592 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Electrochemical biosensing in oncology: a review advancements and prospects for cancer diagnosis.
Cancer Biol Ther
December 2025
Department of Surgery, Hamad Medical Corporation, Doha, Qatar.
Early and precise diagnosis of cancer is pivotal for effective therapeutic intervention. Traditional diagnostic methods, despite their reliability, often face limitations such as invasiveness, high costs, labor-intensive procedures, extended processing times, and reduced sensitivity for early-stage detection. Electrochemical biosensing is a revolutionary method that provides rapid, cost-effective, and highly sensitive detection of cancer biomarkers.
View Article and Find Full Text PDFSpermidine alleviates copper-induced oxidative stress, inflammation and cuproptosis in the liver.
FASEB J
March 2025
State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, P. R. China.
Copper exposure poses potential detrimental effects on both public and ecosystem health. Spermidine, an antioxidant, has shown promise in reducing oxidative stress and inflammation within the liver. However, its specific role in mitigating copper-induced hepatic cuproptosis and disturbances in copper metabolism remains unexplored.
View Article and Find Full Text PDFDual-Carriers of Tartary Buckwheat-Derived Exosome-Like Nanovesicles Synergistically Regulate Glucose Metabolism in the Intestine-Liver Axis.
Small
March 2025
School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China.
The utilization of plant-derived exosome-like nanovesicles (ELNs) as nanocarriers for oral delivery of bioactives has garnered significant attention. However, their distinctive lipid membrane composition may result in elevated membrane permeability within the gastrointestinal environment, leading to the leakage of carried bioactives. Inspired by the concept of projectile design, Tartary buckwheat-derived ELNs (TB-ELNs) based dual-carriers are fabricated by loading chlorogenic acid (CGA) into the cores and bonding selenium nanoparticles (SeNPs) to the lipid membrane.
View Article and Find Full Text PDFp16INK4a Deletion Alleviated Obesity-Associated Kidney Fibrosis by Regulating Metabolic Reprogramming and the Inflammasome Pathway.
J Cell Mol Med
March 2025
Department of Cardiology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.
Recent research has revealed a close association between obesity and various metabolic disorders, including renal metabolic diseases, but the mechanism is still unknown. This study explored the role of p16INK4a in obesity-related kidney fibrosis and evaluated its potential as a therapeutic target. Using wild-type (WT) mice and p16 KO mice, we fed both groups a high-fat diet (HFD) for 6 months.
View Article and Find Full Text PDFEffect of dietary supplementation on growth performance, immune function, and intestinal health of hybrid grouper ( ♀ × ♂).
Front Immunol
March 2025
Fisheries College of Jimei University, Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Xiamen, China.
Introduction: The aim of this study is to investigate the effects of supplementing () on hybrid grouper ( ♀ × ♂), with a particular focus on its impact on growth performance, blood composition, intestinal antioxidant capacity, gut microbiota, tight junction protein (ZO-1) expression, and inflammatory gene expression. The study seeks to uncover the potential health benefits of C. butyricum supplementation for hybrid grouper.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!