THE EFFECT OF PROTEIN LEVEL AND AMINO ACID BALANCE UPON THYROID ACTIVITY IN THE CHICK

1964 ◽  
Vol 42 (3) ◽  
pp. 341-344 ◽  
Author(s):  
B. E. March ◽  
Jacob Biely ◽  
K. R. Pastro
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Dietary Protein ◽  
Protein Level ◽  
Thyroid Activity ◽  
Thyroid Glands ◽  
Amino Acid Imbalance ◽  
Methionine Supplementation ◽  
Amino Acid Balance

Chicks fed diets containing 26% of protein had larger thyroid glands than did chicks fed diets containing 17.5% of protein. Thyroidal uptake of I131 per chick was also greater in the chicks fed the higher level of protein. The basal diets were deficient in methionine. Supplementation of the diets with lysine, which would aggravate the amino acid imbalance, significantly depressed thyroidal uptake of I131 per chick. It is concluded that the amino acid composition of dietary protein, as well as the protein level in the diet, affects thyroid activity in the chick.

COMPOSITION EN ACIDES AMINES DE THYROGLOBULINES PROVENANT DE SUJETS EUTHYROIDIENS ET GOITREUX

1966 ◽  
Vol 53 (2) ◽  
pp. 297-302 ◽  
Author(s):  
Janine Bismuth ◽  
Marcel Rolland ◽  
Serge Lissitzky
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Human Thyroid ◽  
Thyroid Glands ◽  
Acides Aminés ◽  
Normal Human

ABSTRACT Amino acid composition of S19 thyroglobulin purified from three normal human thyroid glands, a hyperthyroid goiter, two hypothyroid familial goiters and a euthyroid goiter, has been determined. No significant differences in amino acid composition has been observed.

Amino acid requirements of the growing meat rabbit 1. The amino acid composition of rabbit whole-body tissue — a theoretical estimate of ideal amino acid balance

1988 ◽  
Vol 47 (2) ◽  
pp. 297-301 ◽  
Author(s):  
P. J. Moughan ◽  
W. H. Schultze ◽  
W. C. Smith
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Essential Amino Acid ◽  
Theoretical Estimate ◽  
Body Tissue ◽  
Whole Body ◽  
Methionine Concentration ◽  
Amino Acid Requirements ◽  
Amino Acid Balance

ABSTRACTWhole-body amino acid composition was determined in six male and six female 53-day-old New Zealand White rabbits. There were no significant sex differences in whole-body amino acid compositition except for arginine and glycine where whole-body concentrations (g/16 g N) were significantly lower in the females (P < 0·05). Overall mean whole-body essential amino acid levels (relative to lysine = 100 units) were methionine = 20; cystine = 41; histidine = 50; phenylalanine = 65; tyrosine = 50; threonine = 64; leucine = 112; isoleucine = 51; valine = 62; arginine = 109. The lysine concentration of rabbit whole-body tissue was 6·12 g/16 g N. There was close agreement between rabbit whole-body amino acid composition and corresponding published values for the rat and pig, although the rabbit whole-body cystine was high and methionine concentration low compared with the rat or pig. The rabbit whole-body amino acid pattern can be regarded as approximating an ideal balance of dietary amino acids and as such indicates discrepancies in current recommendations on the essential amino acid requirements for growth in the meat rabbit.

Influence of dietary protein and its amino acid composition on postoperative outcomes after gastric bypass surgery: a systematic review

2016 ◽  
Vol 74 (12) ◽  
pp. 749-773 ◽  
Author(s):  
Merel van den Broek ◽  
Loek J.M. de Heide ◽  
Nic J.G.M. Veeger ◽  
Alies M. van der Wal–Oost ◽  
André P. van Beek
Keyword(s):  
Systematic Review ◽  
Gastric Bypass ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Dietary Protein ◽  
Bypass Surgery ◽  
Gastric Bypass Surgery ◽  
Postoperative Outcomes

A note on the amino acid composition of sow's milk

1993 ◽  
Vol 57 (03) ◽  
pp. 500-502
Author(s):  
R. H. King ◽  
C. J. Rayner ◽  
M. Kerr
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Dietary Protein ◽  
Crude Protein ◽  
Protein Concentration ◽  
Milk Protein ◽  
Lactating Sows ◽  
Protein Output

Effects of dietary protein concentration on the amino acid composition of sow's milk was studied using 10 crossbred first-litter sows. At parturition, diets containing similar concentrations of digestible energy but with either 63 or 238 g crude protein per kg and 4.4 and 15.1 g lysine per kg respectively, were given through lactation (five sows per treatment). The ratios of other amino acids to lysine were in excess of those currently recommended for lactating sows. Dietary protein level significantly affected milk yield, gave higher milk protein output (P&gt; 0.05) but was without significant effect on the proportions of amino acids in the milk.

A note on the effect of dietary protein concentration, sex, type and live weight on whole-body amino acid composition of the growing pig

1990 ◽  
Vol 51 (3) ◽  
pp. 631-634 ◽  
Author(s):  
E. H. Kemm ◽  
F. K. Siebrits ◽  
Penelope M. Barnes
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Dietary Protein ◽  
Protein Concentration ◽  
Live Weight ◽  
Essential Amino Acids ◽  
Growing Pigs ◽  
Whole Body ◽  
Sex Type

Seventy-two Landrace pigs were used to study the effects of dietary crude protein concentration (197, 168 and 137 g/kg air dry meal), sex, type and live weight on the whole- body (gut content included) amino acid composition of growing pigs. Boars and gilts from two types (lean and obese) slaughtered at 20, 30 or 90 kg live weight were used. Mean whole-body amino acid concentrations were: lysine 63·4; methionine 21·8; cystine 15·8; threonine 35·1; leucine 67·7; isoleucine 28·0; valine 40·5; phenylalanine 35·5; tyrosine 24·6 and histidine 26·8 g/kg protein. Dietary protein concentration had no effect on body amino acid composition. Boar values tended to be higher than those of gilts but there were no significant differences. Pigs of the obese type also tended to have higher values than lean pigs, with significant differences obtained for methionine, cystine, leucine, and isoleucine. Apart from cystine, live weight had no effect on whole-body amino acid composition, Cystine content however, decreased highly significantly from 17·1 g/kg protein at 30 kg live weight to 14·3 g at 90 kg live weight P (P < 0·001). When compared with the suggested ideal pattern for essential amino acids leucine and histidine values are higher and isoleucine slightly lower, with no conclusive indication on methionine and cystine.

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