Influence of ascorbic acid on the adverse effect of feeding a diet containing excess tyrosine to chicks.

@article{Yanaka1982InfluenceOA,
  title={Influence of ascorbic acid on the adverse effect of feeding a diet containing excess tyrosine to chicks.},
  author={Masao Yanaka and Jun-ichi Okumura},
  journal={British poultry science},
  year={1982},
  volume={23 3},
  pages={
          239-45
        }
}
1. The effects of dietary or parenteral administration of ascorbic acid on the adverse effects of excess tyrosine were investigated with young male White Leghorn chicks in a 2-week experiment. 2. Addition of 10 g ascorbic acid/kg to the control diet (without excess tyrosine) produced no beneficial effects on performance. Excess dietary tyrosine caused depressions in all measures of performance. 3. Adding 0.1, 1, 10 or 20 g ascorbic acid/kg to the diet containing excess tyrosine tended to… Expand
Effect of Dietary Excess Arginine on the Concentrations of Serum Amino Acids in Growing Chicks
Supplementation of 1.0, 2.0, 3.0 and 4.0% of arginine to the diet containing 1.0% of arginine did not significantly decrease body weight gain2). In contrast, dietary excess amounts of methionine3) orExpand
Effects of dietary protein level and ascorbic acid supplementation on the contents of tyrosine metabolites in droppings and plasma of chicks fed a diet containing excess tyrosine.
TLDR
The results suggest that the beneficial effects of increased dietary protein level and supplementation with ascorbic acid are related to enhanced ability of chicks to degrade excessively ingested tyrosine. Expand
Effects of dietary excess tyrosine and level of feed intake on nitrogen and energy utilization in chicks.
TLDR
The growth retardation of chicks fed a Tx diet ad lib was due to the combined effects of the depression in feed intake and the reduced efficiency of feed utilization. Expand
Effect of Vitamin C Supplementation on Performance of Broiler Chickens in Cambodia
The hot and wet climatic conditions in the tropics limit the high performance and survival of broilers. In Cambodia heat stress is experienced nearly all year round, but is more pronounced during theExpand
Performance, carcass characteristics and meat physico-chemical properties of broiler chickens fed graded levels of supplemental ascorbic acid
TLDR
Supplemental dietary AA was implicated in growth and improved color of broiler meat in this study, and weight gain and final body weight were significantly higher for birds on AA supplementation compared with control. Expand
Effects of High Dose Supplementation of Ascorbic Acid on Chicks
アスコルビン酸(AA)の大量投与がニワトリヒナにおよぼす影響を調べるために,ブロイラー専用種あるいは白色レグホーン種雄ヒナに0.1~3.0%AA添加飼料を給与して試験を行なった。1. 3.0%までのAA添加飼料の給与は,ヒナの増体量,飼料摂取量および飼料効率にほとんど影響をおよぼさなかった。また,各臓器の重量には有意な変動は認められなかったが,副腎と甲状腺ではやや重くなる傾向を282Expand

References

SHOWING 1-10 OF 21 REFERENCES
Effect of Excess of Individual Essential Amino Acids in Diets on Chicks
TLDR
An increase in the blood plasma concentration of the amino acid in dietary excess was observed, and the possible existence of a branched-chain amino acid antagonism was suggesested in chicks. Expand
Vitamin C and tyrosine metabolism in the chicken.
Abstract ALTHOUGH it is generally accepted that the chicken does not require ascorbic acid when fed a normal diet, studies with purified diets have revealed that in certain cases the addition ofExpand
Growth and Utilization of Dietary Nitrogen and Energy in Chicks Fed Excess Phenylalanine or Tyrosine Diets
TLDR
Growth depressions of chicks given diets with 5% phenylalanine or 5% tyrosine were alleviated as the dietary protein level increased and it is suggested that this accumulated substance may be responsible for the foot swelling of chicks with foot lesions. Expand
Tolerance of Chicks for Diets High in Tyrosine
TLDR
It is shown that rats fed a synthetic diet containing approximately 10 percent 1-tyrosine developed a characteristic syndrome which, in the case of the majority of the rats fed on this diet, resulted in death within three weeks. Expand
Utilization of Dietary Urea by Chicks
The effect of graded levels of dietary urea were studied on chicks given a basal diet containing adequate amounts of all the essential but none of the non-essential amino acids. With the increase ofExpand
BIOSYNTHESIS OF L-ASCORBIC ACID IN RAT LIVER MICROSOMES: INFLUENCES OF AGE, SEX, DIETARY CHANGES, AND WHOLE-BODY X-IRRADIATION.
TLDR
The results indicate that very probably the liver microsomal enzymes in rat are adaptive enzymes, and that the effect of age, sex and inanition has also some influence on the biosynthetic capacity. Expand
THE EXCRETION OF HOMOGENTISIC ACID AND OTHER TYROSINE METABOLITES BY THE VITAMIN C-DEFICIENT GUINEA PIG
TLDR
Of greater significance was the finding that’ these metabolites as in the case of the homogentisic acid are no longer excreted when an adequate amount of ascorbic acid is administered to the guinea pigs. Expand
Control of ketogenesis from amino acids. III. In vitro and in vivo studies on ketone body formation lipogenesis and oxidation of tyrosine by rats.
TLDR
It is suggested that when the activity of tyrosine aminotransferase is high so that it is no longer rate limiting, p-hydroxyphenylpyruvate hydroxylase becomes the rat limiting step because its activity is inhibited by the accumulation of p-Hydroxyphensylpyrivate. Expand
Nutrition of the chicken
TLDR
The health of the chicken depends on the type of meat it is slaughtered and the amount of fat it is fed, as well as its age and gender. Expand
...
1
2
3
...