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Targeted plasma amino acid metabolomics reveals distinct signatures of subclinical ketosis, subclinical mastitis, and concurrent disease in early lactation dairy cows

This study aimed to characterize plasma amino acid profiles associated with SCK, SCM, and concurrent SCK+SCM, evaluate metabolite-based discrimination among disease states, and investigate associations between ketosis status and mastitis pathogens.

Tryptophan-induced effects on the behavior and physiology of aging in tryptophan hydroxylase-2 heterozygous mice C57BL/6N

Immunomodulatory, behavioral, and nutritional response of tryptophan application on poultry

This paper tried to summarize all information about applying tryptophan in the diets and illustrate the roles of tryptophan in the poultry industry

Biochemical and physicochemical indicators of the quality of milk and meat obtained from cows with brucellosis

examine the biochemical and physicochemical indicators of the quality of milk and meat obtained from cows positively reacting to brucellosis in comparison with healthy animals

Growth performance and small intestinal morphology of native chickens after feed supplementation with tryptophan and threonine during the starter phase

This study aimed to determine the amount of threonine and tryptophan that should be supplemented in chicken feed to maximize growth performance