
Keywords: GLP-2، peptide-2 like glucagon-like; Adaptation; Epithelium; Angiogenesis; Absorption; Villus; Apoptosis; Proliferation; Growth FactorsEGF, epidermal growth factor; GH, growth hormone; GLP-2, glucagon-like peptide-2; IGF-1, insulin-like growth factor-1; LA, lactate-accumulator; PN, parentera