Egg quality of hens fed different digestible lysine and arginine levels

Carvalho, FB de; Stringhini, José Henrique; Matos, Margarida; Café, Marcos Barcellos; Leandro, Nadja Susana Mogyca; Gomes, N M B; Santana, ES; Filho, RM Jardim

doi:10.1590/1516-635x170163-68

Cited by 5 publications

(2 citation statements)

References 12 publications

(10 reference statements)

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“…The higher SUA levels observed in high CP fed birds are associated with excessive intake of AA in the form of intact protein ( Hilliar et al, 2019 ). Also, de Carvalho et al (2015) suggested that an appropriate level of dietary Arg can boost protein anabolism; meanwhile, an overdose may cause Arg:Lys imbalance that may increase arginase activity in the kidney with increased Arg oxidization into uric acid. Yuan et al (2015) examined the effects of supplementing the graded level of Arg on SUA level in laying hens fed 17% CP diet.…”

Section: Discussionmentioning

confidence: 99%

Response of laying hens to L-arginine, L-citrulline and guanidinoacetic acid supplementation in reduced protein diet

et al. 2021

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A study was conducted with Hy-Line Brown laying hens to examine the effects of reduced protein diet, deficiency of arginine (Arg), and addition of crystalline Arg, citrulline (Cit) and guanidinoacetic acid (GAA) as substitutes for Arg. Hen performance, egg quality, serum uric acid, liver and reproductive organ weights, and energy and protein digestibility were measured using a completely randomized design with 5 treatments. Treatments were a standard diet (17% protein diet; SP), a reduced diet (13% protein diet deficient in Arg; RP) and RP with added Arg (0.35%, RP-Arg), GAA (0.46% equivalent to 0.35% Arg, RP-GAA) or Cit (0.35%, RP-Cit) to the level of SP. It was hypothesized that performance would decrease with Arg deficient RP diet and the addition of GAA or Cit in RP would allow birds to perform similar or greater than Arg-added RP treatment. The experiment was conducted from 20 to 39 wk of age but the treatment effect was seen only after 29 wk of age. The birds offered RP had reduced egg and albumin weights ( P < 0.01), lower yolk color score ( P < 0.01), lower protein intake and excretion ( P < 0.01) than those offered SP. When Arg or Cit were added to RP to make them equivalent to SP, feed intake (FI) and egg production were not different than those of RP ( P > 0.05). The birds offered RP-GAA decreased FI and egg production ( P < 0.01) compared to those offered RP. The addition of Arg, Cit or GAA to the RP had no effect on egg quality parameters, protein and energy digestibilities ( P > 0.05). However, birds offered the RP-Cit diet tended to have higher Haugh unit ( P = 0.095) and lower shell breaking strength ( P = 0.088) compared to all other treatments while those offered RP-GAA had higher energy digestibility ( P < 0.05) than all other groups but RP. The limited performance response of hens fed RP with added Arg, GAA, or Cit may be due to deficiency of some other nutrients in RP such as phenylalanine, potassium or non-essential amino acids and other components of soybean meal in the diet.

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Section: Discussionmentioning

confidence: 99%

Response of laying hens to L-arginine, L-citrulline and guanidinoacetic acid supplementation in reduced protein diet

et al. 2021

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“…The intensity of protein synthesis of organs and tissues of poultry is directly dependent on the supply of complete protein with feed. When feeding defective proteins to birds, especially in the absence of methionine, lysine, tryptophan, arginine, isoleucine, leucine, valine, phenylalanine and tyrosine in the feed, metabolism is disturbed, growth is slowed down, productivity decreases sharply, there is a deterioration of 2016; Carvalho et al, 2015). Numerous studies by a number of scientists (Kriukov et al, 1997;Ebrahimi, 2014) have studied changes in the needs of poultry in a particular amino acid depending on time, physiological state, changes in productivity and proposed mathematical methods for determining these needs, including theoretical methods calculations.…”

Section: Introductionmentioning

confidence: 99%

Metabolism in replacement chickens at different ratios of arginine and lysine

Ибатуллин¹,

Kryvenok²,

Ilchuk³

2020

Ukr J Ecol

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The influence of different levels of arginine and lysine in compound feeds of replacement chickens on their growth, development and metabolism was studied. The effective ratio of arginine to lysine in the diets of replacement chickens was experimentally established, which, depending on the rearing period, was: 1.0:1 for 1-3 weeks, 1.1:1 for 4-8 weeks, 1.2:1 for 16 weeks and 1.2:1 for 17-18 weeks. It was found that the change in the ratio of arginine and lysine in poultry diets has a much higher degree of influence on their productivity, digestibility of feed nutrients, assimilation and efficiency of amino acids than changes in the levels of these amino acids. It was found that the ratio of arginine and lysine in the last period of rearing chickens (16-18 weeks) to a lesser extent affects the productivity of replacement young (R2=0.59) compared to the first (R2=0.96) and second periods of rearing (R2=0.65). The growth of replacement young during all periods of the experiment and the nature of the effect of changes in levels and ratios of these amino acids in feed depending on age and productivity, described by a mathematical model with nonlinear characteristics (polynomial trend line), which has a higher value of approximation (R2) linear dependence. The use of modern modeling methods and the proposed regression equations allow to predict the content of amino acids in feed for replacement young poultry in accordance with the program of their cultivation and amino acid composition of feed.

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