title: Regeneration of the intestinal mucosa in Eimeria and E. Coli challenged broilers supplemented with amino acids.
abstract: The aim of this study was to evaluate the regeneration of the intestinal mucosa in Eimeria and E. coli challenged broilers supplemented with glutamine, arginine, and threonine. Six hundred male broilers at one d of age from the Cobb strain were utilized. The design was completely randomized using a 2×3 factorial design (unchallenged and challenged and 3 diets). A commercial diet was used as a control and 2 other diets were formulated with glutamine (1.5 and 3% Aminogut®), arginine (1 and 2% L-Arginine), and threonine (1 and 2% L-threonine). The animals that consumed diets supplemented with amino acids presented better (P<0.05) feed conversion in the period from one to 42 d of age. The ability of cell proliferation and the villus:crypt ratio in response to enteric challenge were greater (P<0.05) for broilers that received diets supplemented with amino acids. High levels of amino acids in the experimental feeds reflected in greater protein levels in poultry house litter, and they did not interfere with ammonia production. The supplementation of diets with trophic amino acids can positively contribute to the regeneration and proliferation of the intestinal mucosa in broilers and to the maintenance of zootechnical performance when submitted to enteric challenges.
authors: Laboratory of Poultry Experimentation, Federal University of Parana - Palotina, 85950-000, Parana, Brazil elis.gottardo.vet@gmail.com jimfernandes@ufpr.br.
authors: E T
authors: ET
authors: Gottardo
authors: Laboratory of Poultry Experimentation, Federal University of Parana - Palotina, 85950-000, Parana, Brazil.
authors: K
authors: K
authors: Prokoski
authors: Laboratory of Poultry Experimentation, Federal University of Parana - Palotina, 85950-000, Parana, Brazil.
authors: D
authors: D
authors: Horn
authors: Department of Animal Science, State University of Maringa, 87020-900, Parana, Brazil.
authors: A D
authors: AD
authors: Viott
authors: Department of Animal Science, State University of Maringa, 87020-900, Parana, Brazil.
authors: T C
authors: TC
authors: Santos
authors: Laboratory of Poultry Experimentation, Federal University of Parana - Palotina, 85950-000, Parana, Brazil elis.gottardo.vet@gmail.com jimfernandes@ufpr.br.
authors: J I M
authors: JI
authors: Fernandes
mesh_terms: D000596:Amino Acids / Q000494:pharmacology*; D000821:Animal Feed / Q000032:analysis; D000818:Animals; D001120:Arginine / Q000008:administration & dosage / Q000494:pharmacology; D002645:Chickens; D003048:Coccidiosis / Q000473:pathology / Q000662:veterinary*; D004032:Diet / Q000662:veterinary; D019587:Dietary Supplements; D004539:Eimeria; D004926:Escherichia coli; D004927:Escherichia coli Infections / Q000473:pathology / Q000662:veterinary*; D005973:Glutamine / Q000008:administration & dosage / Q000494:pharmacology; D007413:Intestinal Mucosa / Q000187:drug effects* / Q000473:pathology; D008297:Male; D011201:Poultry Diseases / Q000188:drug therapy / Q000473:pathology*; D012038:Regeneration; D013912:Threonine / Q000008:administration & dosage / Q000494:pharmacology
chemical_list: D000596:Amino Acids; D005973:Glutamine; D013912:Threonine; D001120:Arginine
keywords: PCNA; amino acids; broilers; intestinal repair; mucosa