Threonine supplementation on gut histomorphometry and mucin biology of broilers

Abstract

Threonine is one of the important limiting amino acids (after methionine and lysine) in broiler diets. Adequate threonine level is mandatory to obtain optimal growth of broilers. Threonine takes part in some important metabolic processes (uric acid formation and protein synthesis). It represents 30% of the total amino acid content of mucin. Threonine plays an immense role in gastrointestinal health and thus threonine optimization may protect the intestine from microbial infections. It is presumed that threonine level of healthy diet is not sufficient when the animal experiences a gut challenge either by microbial invasion and/or added with environmental extremes. Till date no guideline has been framed for optimizing the requirement of threonine considering the role of mucin in gut health of poultry. Hence, optimizing the supplemental threonine level in commercial broiler chicken for better performance and gut fitness is utmost necessary.

Effect of Using Different Levels of Crude Protein and Adding some Amino Acids to the Diet on some Blood Biochemical, Histological and Nitrogen Excretion Characteristics of Laying Hens Lohmann Brown

“…This is its role in increasing the length of the villi and the depth of the crypts [21][22][23]. In addition to threonine stimulating glaycin serine acid, as well as stimulating the pancreas to stimulate digestive enzymes, including α-amylies, as well as increasing the digestion coefficient as well as protein synthesis [24,25]. In addition to the height of the villi and the depth of the crypts, and the increase in the value of the height of the villi to the depth of the crypts, which results in an improvement in the efficiency of absorption of nutrients by increasing the surface area, which is the formation of mucin protein, which provides protection for the epithelial cells lining the intestines [26,27].…”