Results 31 to 40 of about 40,361 (295)

Protease Supplementation under Amino Acid Reduction in Diets Formulated with Different Nutritional Requirements for Broilers

open access: yesBrazilian Journal of Poultry Science, 2019
This study aimed to evaluate the effect of different reductions in digestible amino acids content (lysine, methionine, and threonine), according to two nutritional requirements in corn, soybean meal, and meat and bone meal based diets, with protease ...
GV Dessimoni   +5 more
doaj   +1 more source

Estimation of digestible sulphur amino acids requirements for growth performance and immune responses to Newcastle disease and avian influenza vaccination in broilers

open access: yesItalian Journal of Animal Science, 2021
This study was conducted to determine the effects of grower diet (d11-24) digestible sulphur amino acids (SAAs) levels on performance traits, blood metabolites, and immune responses to Newcastle disease (ND) and avian influenza (AI) vaccination in the ...
Saeed Ghavi   +2 more
doaj   +1 more source

Effect of amino acid deficiency on precaecal amino acid digestibility in broiler chickens

open access: yesJournal of Animal Physiology and Animal Nutrition, 2019
AbstractIn this study, we determined whether deficient dietary amino acid (AA) concentrations influence the precaecal (pc) AA digestibility when determined using the regression approach. We mixed two basal diets. Basal diet 1 was deficient in essential AAs, whereas adequate AA concentrations were ensured in basal diet 2 by adding free AAs.
Wolfgang Siegert   +3 more
openaire   +3 more sources

Available versus digestible amino acids – new stable isotope methods [PDF]

open access: yesBritish Journal of Nutrition, 2012
The nutritive value of food protein sources is dependent on the amino acid composition and the bioavailability of the nutritionally indispensable amino acids. Traditionally the methods developed to determine amino acid bioavailability have focused on intestinal absorption or digestibility, which is calculated as the percent of amino acid intake that ...
Rajavel, Elango   +3 more
openaire   +2 more sources

Sunflower meal in commercial layer diets formulated on total and digestible amino acids basis

open access: yesBrazilian Journal of Poultry Science, 2006
An experiment was conduced to evaluate the inclusion of sunflower meal (SBM) in commercial layer diets formulated on total or digestible amino acids basis.
EM Casartelli   +5 more
doaj   +1 more source

Plasmatic Urea Nitrogen in Growing Rabbits with Different Combinations of Dietary Levels of Lysine, Sulphur Amino Acids and Threonine

open access: yesAnimals, 2020
A total of 27 experimental diets were formulated starting from the same basal mixture, with a moderate content of crude protein and digestible energy (155 g and 9.86 MJ/kg of digestible matter (DM), respectively, both estimated).
Pablo Jesús Marín-García   +5 more
doaj   +1 more source

Biomarkers and De Novo Protein Design Can Improve Precise Amino Acid Nutrition in Broilers

open access: yesAnimals, 2022
Precision nutrition in broilers requires tools capable of identifying amino acid imbalances individually or in groups, as well as knowledge on how more digestible proteins can be designed for innovative feeding programs adjusted to animals’ dynamic ...
María Cambra-López   +4 more
doaj   +1 more source

Protein Digestibility-Corrected Amino Acid Scores and Digestible Indispensable Amino Acid Scores Differentially Describe Protein Quality in Growing Male Rats [PDF]

open access: yesThe Journal of Nutrition, 2015
The FAO has recommended replacing the protein digestibility-corrected amino acid score (PDCAAS) with the digestible indispensable amino acid score (DIAAS).The objective of this study was to compare aspects underlying the calculation of the DIAAS and PDCAAS, including 1) fecal digestibility vs.
Shane M, Rutherfurd   +3 more
openaire   +2 more sources

Comparison of different protein evaluation systems for growing pigs: Digestible crude protein, and total, faecal digestible and ileal digestible amino acid intakes as performance response predictors

open access: yesAgricultural and Food Science, 1994
The validity of apparent faecal digestible crude protein and total, apparent faecal or ileal digestible amino acid intakes (lysine, threonine and methionine) as animal performance predictors was evaluated on the basis of digestibility coefficients ...
Jarmo Valaja
doaj   +2 more sources

Mathematical modelling in animal nutrition: a centenary review [PDF]

open access: yes, 2008
A centenary review presents an opportunity to ponder over the processes of concept development and give thought to future directions. The current review aims to ascertain the ontogeny of current concepts, underline the connection between ideas and people
A. DUMAS   +95 more
core   +2 more sources

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