scholarly journals Influence of low-protein diet with different levels of amino acids on laying hen performance, quality and egg composition

2020 ◽  
Vol 92 (1) ◽  
Author(s):  
MAHMOUD ALAGAWANY ◽  
MOHAMED M. EL-HINDAWY ◽  
MOHAMED E. ABD EL-HACK ◽  
MUHAMMAD ARIF ◽  
SABRY ABD EL-SAYED
Keyword(s):  
Amino Acids ◽  
Laying Hen ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Performance Quality ◽  
Low Protein ◽  
Egg Composition ◽  
Different Levels

scholarly journals PSIV-6 Effect of a Phytogenic Water Additive on Growth Performance, Blood Metabolites and Gene Expression of Amino Acids Transporters in Nursery Pigs Fed with Low Protein Diets

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 281-282
Author(s):  
Cedrick N Shili ◽  
Mohammad Habibi ◽  
Julia Sutton ◽  
Jessie Barnes ◽  
Jacob Burchkonda ◽  
...  
Keyword(s):  
Gene Expression ◽  
Amino Acids ◽  
Growth Performance ◽  
Mrna Abundance ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Blood Calcium ◽  
Low Protein ◽  
Protein Diets ◽  
Standard Protein

Abstract Moderately low protein (MLP) diets can help decrease nutrient excretion from the swine production. However, MLP diets negatively impact growth performance. We hypothesized that supplementing MLP diets with phytogenics may reduce the negative effects of these diets on growth. The objective of this study was to investigate the effect of a phytogenic water additive (PWA; Herbanimal®) on growth performance, blood metabolite and gene expression of amino acids transporters in pigs fed with MLP diets. Forty-eight weaned barrows were allotted to six dietary treatments (n = 8) for 4 weeks: >CON-NS: standard protein diet-no PWA; CON-LS: standard protein diet-low PWA dose (4 ml/L); CON-HS: standard protein diet-high PWA dose (8 ml/L); LP-NS: low protein diet-no PWA; LP-LS: low protein diet-low PWA dose (4 ml/L); LP-HS: low protein diet- high PWA dose (8 ml/L). Feed intake and body weight were recorded daily and weekly, respectively. At week 4, blood and tissue samples were collected and analyzed for metabolites using a chemistry analyzer and amino acid transporters using qPCR, respectively. The data were analyzed by univariate GLM (SPSS®) and the means were separated using paired Student’s t-test corrected by Benjamini-Hochberg. Pigs fed CON-HS improved the average daily gain and serum calcium and phosphorus concentrations compared to CON-NS. Pigs fed LP-LS had higher serum phosphorus and blood urea nitrogen compared to the pigs fed with LP-NS. The mRNA abundance of SLC7A11 in the jejunum was lower in CON-LS and CON-HS compared to CON-NS. Additionally, mRNA abundance of SLC6A19 in the jejunum of pigs fed with LP-LS was higher compared to LP-NS and lower in CON-HS relative to pigs fed with CON-LS. In conclusion, PWA improved the growth performance of pigs fed standard protein diets but not low protein diets. Further, the PWA improved the concentrations of blood calcium and phosphorous in pigs fed MLP diets. Funding: Agrivida and Animal Health and Production and Animal Products: Improved Nutritional Performance, Growth, and Lactation of Animals from the USDA-NIFA.

FURTHER OBSERVATIONS OF A PATIENT WITH HYPERGLYCINEMIA

PEDIATRICS ◽  
1964 ◽  
Vol 33 (3) ◽  
pp. 403-412 ◽  
Author(s):  
Barton Childs ◽  
William L. Nyhan
Keyword(s):  
Amino Acids ◽  
Clinical Manifestations ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Blood Levels ◽  
Low Protein

Observations of a patient with hyperglycinemia have been extended. The patient, who has been subsisting on a low protein diet, has shown some improvement in the clinical manifestations though he has failed to grow. Loading experiments have increased the list of amino acids capable of inducing ketosis and symptoms in the patient to five: leucine, isoleucine, valine, threonine, and methionine. Eleven other amino acids have been similarly tested and were found to be beneficial, reducing the toxicity of the five ketogenic amino acids. Blood levels of the amino acids have been measured under a variety of circumstances. When given alone, the toxic amino acids were found to accumulate in the blood. Such accumulations were less striking when the nonketogenic amino acids were given together with the ketogenic ones. The patient has been benefitted by a diet low in protein which has been supplemented by the innocuous amino acids.

scholarly journals Effects of Different Methionine Levels in Low Protein Diets on Production Performance, Reproductive System, Metabolism, and Gut Microbiota in Laying Hens

2021 ◽  
Vol 8 ◽  
Author(s):  
Miaolin Ma ◽  
Shunju Geng ◽  
Meiling Liu ◽  
Lihong Zhao ◽  
Jianyun Zhang ◽  
...  
Keyword(s):  
Reproductive System ◽  
Laying Hens ◽  
Production Performance ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Microbial Composition ◽  
Low Protein ◽  
System Metabolism ◽  
Protein Diets ◽  
Different Levels

This study investigated the effects of different levels of methionine (Met) in a low protein diet on the production performance, reproductive system, metabolism, and gut microbial composition of laying hens to reveal the underlying molecular mechanism of Met in a low protein diet on the host metabolism and gut microbial composition and function of hens. A total of 360 healthy 38-week-old Peking Pink laying hens with similar body conditions and egg production (EP) were randomly divided into four groups with nine replicates per treatment and 10 hens per replicate. The hens in each treatment group were fed low protein diets containing different levels of Met (0.25, 0.31, 0.38, and 0.47%, respectively) for 12 weeks. Feed and water were provided ad libitum throughout the trial period. The results showed that, compared with the 0.25% Met group, the final body weight (FBW), average daily gain (ADG), EP, egg weight (EW), and average daily feed intake (ADFI) in the other groups were significantly increased and feed egg ratio (FER) was decreased. Meanwhile, the EW and yield of abdominal fat (AFY) in the 0.47% Met group were higher than those in other groups. The triglyceride (TG), estradiol (E2), total protein (TP), albumin (ALB), and immunoglobulin A (IgA) in the 0.38 and 0.47% Met groups were higher than those in other groups. In addition, 16S rRNA gene sequencing revealed that there was no difference in the Sobs index, ACE index, and Shannon index among all groups. However, it is worth noting that feeding low protein diets with Met changed the gut microbial composition (e.g., the supplementation of Met increased the level of Lactobacillus and decreased the proportion of Faecalibacterium). Also, our results showed that the changes in gut microbial composition induced by the diets with different levels of Met were closely related to the changes of key parameters: ADFI, EW, FBW, TG, EM, EP, ADG, FER, and uric acid (UA). Our results highlight the role of adding an appropriate amount of Met to the low protein diet in laying hens, which could improve the gut microbial composition, production performance, reproductive system, and nutrient metabolism of laying hens. In conclusion, this study suggested that when the Met level was 0.38%, the production performance of the laying hens was pretty good.

scholarly journals The relative effects of a low-protein-high-carbohydrate diet on the free amino acid composition of liver and muscle

1976 ◽  
Vol 36 (2) ◽  
pp. 219-230
Author(s):  
P. G. Lunn ◽  
R. G. Whitehead ◽  
B. A. Baker
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Free Amino Acid ◽  
Acid Concentration ◽  
Free Amino ◽  
Essential Amino Acids ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Total Amino Acid ◽  
Low Protein

1. Free amino acid concentrations in the plasma have been compared with those in liver and quadriceps muscle, in rats fed on diets containing 209 (control) and 31 (low-protein) g protein/kg. The effects of the low-protein diet on diurnal variations in these values were also measured.2. In the plasma, the total amino acid concentration was significantly lower in animals given the low-protein diet, at all times of day except 12.00 hours. In the liver, and to a lesser extent the muscle, total amino acid concentration was maintained.3. In the control animals, diurnal variation in the concentrations of both essential and non-essential amino acids was very similar in plasma, liver and muscle. In animals given the low-protein diet, although the same diurnal pattern was maintained for non-essential amino acids, that occurring among the essential amino acids had virtually disappeared.4. In plasma, the mean 24 h concentration of essential amino acids decreased from 24· mmol/l in control animals to only 1·29 mmol/l in the low-protein-fed animals. Concentrations in muscle and liver were reduced by a similar proportion (from 8·6 to 5·56 μmol/g and from 8·67 to 5·05 μmol/g respectively). Conversely the concentrations of non-essential amino acids in animals given the low-protein diet were increased in plasma (from 1·53 to 2·00 mmol/l), muscle (from 12·5 to 14·3 μmol/g), and liver (from 16·8 to 20·5 μmol/g), muscle showing the lowest increase.5. With the exceptions of lysine, threonine, cystine and tyrosine, the concentrations of all other essential amino acids were reduced more in liver than in muscle. The relationship between this and the failure to maintain plasma albumin concentrations is discussed.

scholarly journals Tau‐induced brain atrophy and neuroinflammation accelerated by low‐protein diet and decelerated by selected essential amino acids in a murine model of tauopathies

2020 ◽  
Vol 16 (S2) ◽  
Author(s):  
Yuhei Takado ◽  
Hideaki Sato ◽  
Masako Tsukamoto‐Yasui ◽  
Keiichiro Minatohara ◽  
Manami Takahashi ◽  
...  
Keyword(s):  
Amino Acids ◽  
Murine Model ◽  
Brain Atrophy ◽  
Essential Amino Acids ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Low Protein

scholarly journals Effect of a low-protein diet on the incorporation of amino acids into rat serum lipoproteins

1972 ◽  
Vol 129 (3) ◽  
pp. 793-795 ◽  
Author(s):  
A Seakins ◽  
J C Waterlow
Keyword(s):  
Amino Acids ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Serum Lipoproteins ◽  
Rat Serum ◽  
Low Protein

Effects of a Low-Phosphorus, Low-Protein Diet Supplemented with Essential Amino Acids and Keto Analogues on ‘Overt’ Diabetic Nephropathy

1987 ◽  
Vol 14 (5) ◽  
pp. 12-16
Author(s):  
G. Barsotti ◽  
R. Navalesi ◽  
E. Morelli ◽  
O. Giampietro ◽  
F. Ciardella ◽  
...  
Keyword(s):  
Amino Acids ◽  
Diabetic Nephropathy ◽  
Essential Amino Acids ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Low Protein ◽  
Low Phosphorus ◽  
Keto Analogues

Effects of low protein diet and low protein diet supplemented with synthetic essential amino acids on meat quality of broiler chickens

2012 ◽  
Vol 84 (6) ◽  
pp. 489-495 ◽  
Author(s):  
Hiroyuki Kobayashi ◽  
Kazuki Nakashima ◽  
Aiko Ishida ◽  
Akane Ashihara ◽  
Masaya Katsumata
Keyword(s):  
Amino Acids ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Essential Amino Acids ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Low Protein

Influence of Low Protein Diet Supplemented with Amino Acids and Keto Acids on the Progression of Chronic Renal Failure

2015 ◽  
pp. 121-127 ◽  
Author(s):  
R. Schmicker ◽  
P. T. Froehling ◽  
K. H. Goetz ◽  
I. Kaschube ◽  
I. Rakette ◽  
...  
Keyword(s):  
Amino Acids ◽  
Renal Failure ◽  
Chronic Renal Failure ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Low Protein ◽  
Keto Acids

Low-protein diet induces, whereas high-protein diet reduces hepatic FGF21 production in mice, but glucose and not amino acids up-regulate FGF21 in cultured hepatocytes

2016 ◽  
Vol 36 ◽  
pp. 60-67 ◽  
Author(s):  
Tristan Chalvon-Demersay ◽  
Patrick C. Even ◽  
Daniel Tomé ◽  
Catherine Chaumontet ◽  
Julien Piedcoq ◽  
...  
Keyword(s):  
Amino Acids ◽  
High Protein Diet ◽  
High Protein ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Cultured Hepatocytes ◽  
Low Protein
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