Sulphur amino acid requirement of laying hens and the effects of excess dietary methionine on laying performance

1983 ◽  
Vol 24 (3) ◽  
pp. 319-326 ◽  
Author(s):  
J. B. Schutte ◽  
E. J. Van Weerden ◽  
H. L. Bertram
Keyword(s):  
Amino Acid ◽  
Laying Hens ◽  
Amino Acid Requirement ◽  
Sulphur Amino Acid ◽  
Laying Performance

scholarly journals Effects of dietary protein, energy and β-mannanase on laying performance, egg quality, and ileal amino acid digestibility in laying hens.

2021 ◽  
pp. 101312
Author(s):  
Dima White ◽  
Roshan Adhikari ◽  
Jinquan Wang ◽  
Chongxiao Chen ◽  
Jae Hwan Lee ◽  
...  
Keyword(s):  
Amino Acid ◽  
Dietary Protein ◽  
Laying Hens ◽  
Egg Quality ◽  
Protein Energy ◽  
Laying Performance

Economies in the use of animal by-products in poultry rations: II. Vitamin and amino-acid provision for laying hens

1954 ◽  
Vol 44 (3) ◽  
pp. 340-354 ◽  
Author(s):  
K. J. Carpenter ◽  
J. Duckworth ◽  
G. M. Ellinger
Keyword(s):  
Amino Acid ◽  
Egg Production ◽  
Laying Hens ◽  
Early Growth ◽  
Limited Access ◽  
Protein Factor ◽  
Laying Performance ◽  
Final Weight ◽  
By Products ◽  
Stimulation Of

1. Birds fed on rations devoid of animal byproducts from hatching until 18 months of age were equal in laying performance and health to those that had received animal supplements.2. The stimulation of early growth by feeding aureomycin did not affect the final weight of pullets, their egg production or the incidence of broodiness.3. The ‘animal protein factor(s)’ was of limited importance for egg production. There was a suggestive indication of an effect of a deficiency of the factor(s) when birds on an all-plant ration had been laying for 6 months without access to their droppings. Limited access to ‘unfermented’ droppings, which provided the only dietary source of the factor(s) during both rearing and laying periods, was sufficient to meet the need of the birds for sustained egg production.

scholarly journals Total sulphur amino acid requirement of children with end‐stage renal disease

2006 ◽  
Vol 20 (5) ◽  
Author(s):  
Justine Turner ◽  
Arshad Humayun ◽  
Rajavel Elango ◽  
Mahroukh Rafii ◽  
Veronika Langos ◽  
...  
Keyword(s):  
Amino Acid ◽  
Renal Disease ◽  
End Stage Renal Disease ◽  
Amino Acid Requirement ◽  
Sulphur Amino Acid ◽  
Total Sulphur ◽  
Stage Renal Disease ◽  
End Stage

STUDIES ON THE SULPHUR METABOLISM OF TISSUES CULTIVATED IN VITRO: III. INTERRELATIONSHIPS BETWEEN CYSTEINE, METHIONINE, CYSTEAMINE, AND CYSTAMINE

1957 ◽  
Vol 35 (10) ◽  
pp. 785-794 ◽  
Author(s):  
Joseph F. Morgan ◽  
Helen J. Morton
Keyword(s):  
Amino Acid ◽  
Embryonic Heart ◽  
Tissue Cultures ◽  
Sulphur Metabolism ◽  
Amino Acid Requirement ◽  
Essential Requirement ◽  
Sulphur Amino Acid ◽  
Synthetic Media

Previous studies on the sulphur amino acid requirement of freshly-explanted chick embryonic heart tissues cultivated in vitro in completely synthetic media have been extended. The essential requirement for L-cystine has been found to be replaceable by L- but not by D-cysteine. In the presence of L-cysteine, the supplementary methionine requirement was found to be satisfied equally by the L- or D-isomer. Of eight derivatives and metabolites of cysteine studied, only cysteamine showed any significant ability to replace cysteine or cystine. The activity of cysteamine was exhibited only in the presence of methionine. High levels of cysteamine were found to be strongly toxic and the toxicity could be reversed specifically by L-cysteine. Significantly less reversal of the cysteamine toxicity was effected by L-cystine, while other sulphydryl and disulphide compounds were ineffective. Cystamine was also found to be toxic to the tissue cultures and its toxicity could be reversed completely by L-cysteine and incompletely by L-cystine.

scholarly journals The amino-acid requirement of laying hens

1958 ◽  
Vol 12 (3) ◽  
pp. 276-285 ◽  
Author(s):  
Dewey Johnson ◽  
Hans Fisher
Keyword(s):  
Amino Acid ◽  
Laying Hens ◽  
Amino Acid Requirement
Sign in / Sign up

Export Citation Format

Share Document