scholarly journals Amino Acid for Japanese Quails: Methodologies and Nutritional Requirement

2017 ◽  
Author(s):  
Danilo V.G. Vieira ◽  
Fernando G.P. Costa ◽  
Matheus R. Lima ◽  
José G.V. Júnior ◽  
Talita P. Bonaparte ◽  
...  
Keyword(s):  
Amino Acid ◽  
Nutritional Requirement ◽  
Japanese Quails

scholarly journals Performance, carcass traits, meat quality and amino acid profile of different Japanese quails strains

2017 ◽  
Vol 54 (13) ◽  
pp. 4189-4196 ◽  
Author(s):  
Mohammed A. F. Nasr ◽  
El-Shimaa M. R. Ali ◽  
Mohamed A. Hussein
Keyword(s):  
Amino Acid ◽  
Meat Quality ◽  
Carcass Traits ◽  
Amino Acid Profile ◽  
Japanese Quails

scholarly journals Overproduction of l-Lysine from Methanol by Methylobacillus glycogenes Derivatives Carrying a Plasmid with a Mutated dapA Gene

2001 ◽  
Vol 67 (7) ◽  
pp. 3064-3070 ◽  
Author(s):  
Hiroaki Motoyama ◽  
Hiroshi Yano ◽  
Yoko Terasaki ◽  
Hideharu Anazawa
Keyword(s):  
Amino Acid ◽  
Specific Activity ◽  
Test Tube ◽  
Amino Acid Sequences ◽  
Nutritional Requirement ◽  
Wild Type ◽  
Gene Encoding ◽  
Lysine Production ◽  
Obligate Methylotroph ◽  
In The Wild

ABSTRACT The dapA gene, encoding dihydrodipicolinate synthase (DDPS) partially desensitized to inhibition by l-lysine, was cloned from an l-threonine- andl-lysine-coproducing mutant of the obligate methylotrophMethylobacillus glycogenes DHL122 by complementation of the nutritional requirement of an Escherichia coli dapAmutant. Introduction of the dapA gene into DHL122 and AL119, which is the parent of DHL122 and an l-threonine producing mutant, elevated the specific activity of DDPS 20-fold andl-lysine production 2- to 3-fold with concomitant reduction of l-threonine in test tube cultures. AL119 containing thedapA gene produced 8 g of l-lysine per liter in a 5-liter jar fermentor from methanol as a substrate. Analysis of the nucleotide sequence of the dapA gene shows that it encodes a peptide with an M r of 30,664 and that the encoded amino acid sequence is extensively homologous to those of other organisms. In order to study the mutation that occurred in DHL122, the dapA genes of the wild type and AL119 were cloned and sequenced. Comparison of the nucleotide sequences of the dapA genes revealed that the amino acid at residue 88 was F in DHL122 whereas it was L in the wild type and AL119, suggesting that this amino acid alteration that occurred in DHL122 caused the partial desensitization of DDPS to the inhibition byl-lysine. The similarity in the amino acid sequences of DDPS in M. glycogenes and other organisms suggests that the mutation of the dapA gene in DHL122 is located in the region concerned with interaction of the allosteric effector,l-lysine.

Longitudinal assessment of taurine and amino acid concentrations in dogs fed a green lentil diet

2021 ◽  
Author(s):  
Lauren M Reilly ◽  
Fei He ◽  
Lindsay Clark ◽  
Maria R C de Godoy
Keyword(s):  
Amino Acid ◽  
Whole Blood ◽  
Nutritional Requirement ◽  
Longitudinal Assessment ◽  
Time Points ◽  
Α Diversity ◽  
Taurine Deficiency ◽  
Green Lentils ◽  
Dietary Treatments ◽  
Amino Acid Concentrations

Abstract A recent association between the inclusion of pulses in canine diets and taurine deficiency has become a prevalent issue in the pet food industry. Although there is not a nutritional requirement for taurine by dogs, the appearance of taurine deficiencies has been related with more serious health issues, such as dilated cardiomyopathy. The objective of this study was to determine the circulating concentrations of plasma and whole blood taurine, indispensable and dispensable amino acid concentrations in the plasma, and taurine and creatinine concentrations in the urine of adult dogs fed a green lentil diet. Twelve, adult, female beagles were randomly assigned to a diet containing 45% green lentils (GLD) or a poultry byproduct meal diet (CON) for 90 days. Fresh urine samples were collected every 30 d and analyzed for taurine and creatinine concentrations. A blood sample also was collected every 30 d and analyzed for amino acids including taurine. Animal procedures were approved by the University of Illinois Institutional Animal Care and Use Committee. All diets were formulated to meet or exceed the nutrient requirements outlined by AAFCO (2018) and all dogs remained healthy throughout the study. The concentrations of taurine in the plasma and whole blood showed no differences (P > 0.05) between dietary treatments or across time points. Similarly, no differences (P > 0.05) in plasma methionine concentrations were observed between treatments or across time points. A treatment effect (P < 0.05) showed dogs fed GLD had higher total primary fecal bile acid (BA) excretion compared with dogs fed CON. The differential abundance of fecal microbial communities showed Firmicutes as the predominant phyla in dogs fed both GLD and CON, with Bacteroidaceae, Erysipelotrichaceae, and Lactobacillaecae as predominant families in dogs fed GLD. The α-diversity of dogs fed GLD ( P < 0.05) was lower than in dogs fed CON. These data suggest that the inclusion of 45% green lentil in extruded diets does not lower whole blood and plasma taurine concentrations during a 90 d period and is appropriate for use in a complete and balanced formulation for dogs.

Responses of broilers to sodium bicarbonate supplementation of diets containing varying arginine : lysine ratios

1999 ◽  
Vol 50 (3) ◽  
pp. 425 ◽  
Author(s):  
D. Balnave ◽  
J. Brake
Keyword(s):  
Amino Acids ◽  
Weight Gain ◽  
Amino Acid ◽  
Food Intake ◽  
Sodium Bicarbonate ◽  
Primary Response ◽  
Nutritional Requirement ◽  
Elevated Plasma ◽  
Dietary Amino Acids ◽  
Plasma Arginine

Interactions of sodium bicarbonate (NaHCO3) with dietary arginine : lysine (arg : lys) ratios at thermoneutral (21˚C) and high (31˚C) temperatures were investigated with 21–42-day-old broilers fed diets containing increasing concentrations of arginine to produce arg : lys ratios of 1.05, 1.15, 1.25, and 1.35, with and without 16 g NaHCO3/kg. Consistent positive relationships were observed between increasing dietary arg : lys ratios and improved food intake and weight gain at 31˚C with broilers fed diets without NaHCO3. The primary response to increasing dietary arg: lys ratio in broilers receiving NaHCO3 was increased food intake. This gave corresponding increases in weight gain at 31˚C, but not at 21˚C. Increases in dietary arg : lys ratio increased plasma arginine, ornithine, and arg: lys ratio but had little effect on plasma lysine concentrations. NaHCO3 alone had no direct effect on plasma amino acid patterns but was important in potentiating the elevated plasma arg : lys ratio responses observed at 31˚C in broilers receiving NaHCO3 in their diet. The results indicate important interrelationships exist between dietary amino acids and electrolytes, and the existence of a nutritional requirement for bicarbonate at high temperatures.

scholarly journals Clustering of ingredients with amino acid composition similar to the nutritional requirement of Nile tilapia

2010 ◽  
Vol 67 (5) ◽  
pp. 517-523 ◽  
Author(s):  
Álvaro José de Almeida Bicudo ◽  
Luis Fernando Batista Pinto ◽  
José Eurico Possebon Cyrino
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Principal Components ◽  
Nile Tilapia ◽  
Principal Component ◽  
Essential Amino Acids ◽  
Amino Acid Profile ◽  
Nutritional Requirement ◽  
Dietary Amino Acids ◽  
The Relationship

The search for balanced diets, which may elicit improved growth of fish, requires appropriate selection of available protein sources. This study aims at clustering feedstuffs according to amino acid profile, determining which ones show essential amino acids (EAA) profiles closer to the ideal dietary amino acids requirements of Nile tilapia (Oreochromis niloticus), and studying the relationship among amino acids feedstuffs groups. Tabled data on EAA more cystine and tyrosine, in relation to lysine contents, of 40 feedstuffs ordinarily used to formulate fish diets were studied. Feedstuffs were grouped according to amino acids profile by cluster analysis of Euclidean distances. The principal components analysis was used to determine the relationship among amino acids in each feedstuff group. Three groups of ingredients were parted and two ingredients, low tannin sorghum and corn gluten meal 60%, did not go with any group. Dietary amino acids requirements of Nile tilapia were similar to the amino acid profile of 22 feedstuffs. The principal component analysis explained with three principal components more than 75% of total variance of amino acids in three feedstuff groups. Therefore, until additional, detailed information on amino acids availability of different ingredients is consolidated, total amino acids profiles will continue to be important information to select and use conventional or surrogate ingredients for formulating and processing feeds for tilapia.

scholarly journals Does light intensity affect the behavior, welfare, performance, meat quality, amino acid profile, and egg quality of Japanese quails?

2019 ◽  
Vol 98 (8) ◽  
pp. 3093-3102 ◽  
Author(s):  
Mohammed A.F. Nasr ◽  
Hesham Mohammed ◽  
Rania A. Hassan ◽  
Ayman A. Swelum ◽  
Islam M. Saadeldin
Keyword(s):  
Amino Acid ◽  
Light Intensity ◽  
Meat Quality ◽  
Egg Quality ◽  
Amino Acid Profile ◽  
Japanese Quails

scholarly journals Second-limiting amino acid in corn-soybean meal based diets for Japanese quail

2020 ◽  
Vol 9 (9) ◽  
pp. e571997548
Author(s):  
Danilo Teixeira Cavalcante ◽  
Fernando Guilherme Perazzo Costa ◽  
Edilson Paes Saraiva ◽  
Patrícia Emília Naves Givisiez ◽  
Danilo Vargas Gonçalves Vieira ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Soybean Meal ◽  
Feed Intake ◽  
Essential Amino Acid ◽  
Egg Yolk ◽  
Egg Mass ◽  
Feed Conversion ◽  
Japanese Quails ◽  
Limiting Amino Acid

The objective was to determine the second-limiting amino acid in diets based on corn-soybean meal for Japanese quails in the growth and laying stages. A total of 1,440 Japanese quails were used in three experiments in phases 1 to 21; 22 to 42 and 85 to 210 days of age, respectively. Each experiment contained eight treatments with six replications of ten birds. The experimental diets were based on corn-soybean meal. The levels of methionine + cysteine ​​were adequate in all experimental diets, but there was variation in the attendance of another second essential amino acid. In experiments 1 and 2, quails that were fed diets with adequate levels of methionine + cysteine ​​and lysine showed higher weight gain (g/bird) and better feed conversion (g/g). Feed intake (g/bird) was not influenced. In experiment 3, adequate levels of all amino acids promoted a lower feed intake (g/bird) and better feed conversion per egg mass (g/g) and per dozen eggs (g/dozen). Egg weight (g), weight (g) and shell thickness (mm) and specific gravity (g/cm3) were not affected. The diets that met the requirements of all amino acids promoted the laying of eggs with a greater weight of albumen (g) and lower weights of egg yolk (g). In conclusion, the second-limiting amino acid in plant diets for Japanese quails is lysine.

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