scholarly journals Serine-to-glycine ratios in low-protein diets regulate intramuscular fat by affecting lipid metabolism and myofiber type transition in the skeletal muscle of growing-finishing pigs

2021 ◽  
Author(s):  
Xihong Zhou ◽  
Yonghui Liu ◽  
Lingyu Zhang ◽  
Xiangfeng Kong ◽  
Fengna Li
Keyword(s):  
Skeletal Muscle ◽  
Lipid Metabolism ◽  
Intramuscular Fat ◽  
Finishing Pigs ◽  
Type Transition ◽  
Low Protein ◽  
Protein Diets ◽  
Myofiber Type

scholarly journals Addition of arginine and leucine to low or normal protein diets: performance, carcass characteristics and intramuscular fat of finishing pigs

2016 ◽  
Vol 14 (4) ◽  
pp. e0605 ◽  
Author(s):  
Núria Tous ◽  
Rosil Lizardo ◽  
Borja Vilà ◽  
Marina Gispert ◽  
Maria Font-i-Furnols ◽  
...  
Keyword(s):  
Average Daily Gain ◽  
Live Weight ◽  
Intramuscular Fat ◽  
Finishing Pigs ◽  
Low Protein ◽  
Dietary Crude Protein ◽  
Initial Hypothesis ◽  
Protein Diets ◽  
Daily Gain ◽  
Imf Content

The effect of dietary crude protein (CP) reduction, supplementation with arginine or leucine on intramuscular fat (IMF) content was evaluated in (Landrace × Duroc) × Pietrain pigs. One-hundred and eight barrows (67 ± 4 kg) were assigned to six diets (n=6 pens of 3 pigs each): four normal CP diets containing 16% CP from 60 to 90 kg and 13% CP from 90 to 115 kg live weight (normal protein; normal protein high Arg, normal protein high Leu or normal protein high Arg and Leu) and two low CP diets containing 14% CP from 60 to 90 kg and 11.8% CP from 90 to 115 kg live weight (with or without supplementation of both amino acids). The high Leu and Arg diets were supplemented to obtain ratios of standard ileal digestible Leu/Lys and Arg/Lys of 4 and 2, respectively. While feed to gain ratio tended to increase (p<0.05), final weight (p<0.01), average daily feed intake (ADFI) (p<0.05) and average daily gain (ADG) (p<0.01) were reduced in animals fed low-protein diets supplemented with Arg and Leu compared to the ones fed low-protein diet unsupplemented. Marbling and IMF content in loin were reduced when Arg was supplemented (p<0.05) in normal protein diets. Supplementing these diets with Arg also reduced belly weight (p<0.01) and increased lean meat percentage (p<0.05). Contrary to the initial hypothesis, reduction of CP or dietary supplementation with Leu had no effect on IMF content and supplementation with Arg reduced it.

scholarly journals Metabolic acidosis and skeletal muscle adaptation to low protein diets in chronic uremia

1991 ◽  
Vol 40 (4) ◽  
pp. 779-786 ◽  
Author(s):  
Bryan Williams ◽  
Jane Hattersley ◽  
Ellis Layward ◽  
John Walls
Keyword(s):  
Skeletal Muscle ◽  
Metabolic Acidosis ◽  
Muscle Adaptation ◽  
Low Protein ◽  
Chronic Uremia ◽  
Protein Diets

The Protein and Energy Metabolic Response of Skeletal Muscle to the Low-Protein Diets in Growing Pigs

2017 ◽  
Vol 65 (39) ◽  
pp. 8544-8551 ◽  
Author(s):  
Yinghui Li ◽  
Fengna Li ◽  
Yehui Duan ◽  
Qiuping Guo ◽  
Wenlong Wang ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Metabolic Response ◽  
Growing Pigs ◽  
Low Protein ◽  
Protein Diets

Plasma Urea Nitrogen Concentration and Growth Performance of Finishing Pigs Fed Sorghum-Soybean Meal, Low-Protein Diets

2008 ◽  
Vol 33 (1) ◽  
pp. 7-12 ◽  
Author(s):  
J. L. Figueroa ◽  
M. Martínez ◽  
J. E. Trujillo ◽  
V. Zamora ◽  
J. L. Cordero ◽  
...  
Keyword(s):  
Growth Performance ◽  
Soybean Meal ◽  
Nitrogen Concentration ◽  
Finishing Pigs ◽  
Urea Nitrogen ◽  
Plasma Urea ◽  
Low Protein ◽  
Protein Diets

scholarly journals Angiotensin-converting enzyme 2 regulates endoplasmic reticulum stress and mitochondrial function to preserve skeletal muscle lipid metabolism

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Xi Cao ◽  
Xin-Meng Lu ◽  
Xiu Tuo ◽  
Jing-Yi Liu ◽  
Yi-Chen Zhang ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Endoplasmic Reticulum ◽  
Lipid Metabolism ◽  
Er Stress ◽  
Mitochondrial Function ◽  
Knockout Mice ◽  
Intramuscular Fat ◽  
Muscle Lipid ◽  
Angiotensin Converting Enzyme 2 ◽  
Skeletal Muscle Lipid

Abstract Objective Endoplasmic reticulum (ER) stress and mitochondrial function affected intramuscular fat accumulation. However, there is no clear evident on the effect of the regulation of ER stress and mitochondrial function by Angiotensin-converting enzyme 2 (ACE2) on the prevention of intramuscular fat metabolism. We investigated the effects of ACE2 on ER stress and mitochondrial function in skeletal muscle lipid metabolism. Methods The triglyceride (TG) content in skeletal muscle of ACE2 knockout mice and Ad-ACE2-treated db/db mice were detected by assay kits. Meanwhile, the expression of lipogenic genes (ACCα, SREBP-1c, LXRα, CPT-1α, PGC-1α and PPARα), ER stress and mitochondrial function related genes (GRP78, eIF2α, ATF4, BCL-2, and SDH6) were analyzed by RT-PCR. Lipid metabolism, ER stress and mitochondrial function related genes were analyzed by RT-PCR in ACE2-overexpression C2C12 cell. Moreover, the IKKβ/NFκB/IRS-1 pathway was determined using lysate sample from skeletal muscle of ACE2 knockout mice. Results ACE2 deficiency in vivo is associated with increased lipid accumulation in skeletal muscle. The ACE2 knockout mice displayed an elevated level of ER stress and mitochondrial dysfunctions in skeletal muscle. In contrast, activation of ACE2 can ameliorate ER stress and mitochondrial function, which slightly accompanied by reduced TG content and down-regulated the expression of skeletal muscle lipogenic proteins in the db/db mice. Additionally, ACE2 improved skeletal muscle lipid metabolism and ER stress genes in the C2C12 cells. Mechanistically, endogenous ACE2 improved lipid metabolism through the IKKβ/NFκB/IRS-1 pathway in skeletal muscle. Conclusions ACE2 was first reported to play a notable role on intramuscular fat regulation by improving endoplasmic reticulum and mitochondrial function. This study may provide a strategy for treating insulin resistance in skeletal muscle.

Effect of prebiotic on lipid profile of broiler chicks

2009 ◽  
Vol 2009 ◽  
pp. 224-224
Author(s):  
S Amirdahri ◽  
H Janmohammadi ◽  
A Taghizadeh ◽  
R Estakhri
Keyword(s):  
Lipid Metabolism ◽  
Human Body ◽  
Broiler Chicken ◽  
Abdominal Fat ◽  
Broiler Chicks ◽  
Poultry Products ◽  
Low Protein ◽  
Health Organization ◽  
Protein Diets

Research on poultry genetics, feeding and management for BWG and FCR resulted in fast growth but decreased the quality of poultry products as modern fast growing broilers have been found to contain higher amount of abdominal fat (Chambers et al, 1981). Most recently considerable attention has been paid to test the potency of growth promo ants on altering lipid metabolism, because, Word Health Organization suggest that excess fat deposition is undesirable in human body. Recent report suggested that feeding of chicory beta fructans; a prebiotic reduced the serum cholesterol and abdominal fat of broiler chicken. The present study was undertaken to study the effect of Aspergillus meal prebiotic (Fermacto) on abdominal fat, serum total cholesterol, HDL and triglyceride levels in low protein diets.

Sign in / Sign up

Export Citation Format

Share Document