title: The effect of different levels of organic and inorganic chromium supplementation on production performance, carcass traits and some blood parameters of broiler chicken under heat stress condition.
abstract: A total of 250 broilers in a completely randomized design selected to evaluate the effect of different levels of chromium (Cr) supplementation on performance, carcass traits and some blood parameters of heat-stressed broiler chicks. All birds were kept under heat stress temperature (33 ± 3°C) and divided into five treatments groups. Each treatment consisted of five pens with 10 birds in each pen. The basal diets were supplemented with 0 ppb (control), 800 ppb Cr-L-Met (T(1)), 1,200 ppb Cr-L-Met (T(2)) or 800 ppb CrCl(3) (T(3)), and 1,200 ppb CrCl(3) (T(4)). The feed intake and body mass were measured at 10, 21, and 42 days of age. Blood samples were collected from two birds in each replicates to determine biological and hematological values at 28 and 42 days of age. There were no significant difference in mass gain and feed conversion of broilers that received Cr supplementations compared with controls. The serum glucose concentration decreased in broilers received organic chromium methionine supplements compared with other treatments groups. Slight but not significant increases were observed in serum high-density lipoprotein (HDL) concentration of treated groups than controls while the mean serum HDL concentration was significantly higher in T(2) group compared with control group. Serum low-density lipoprotein level decreased in broiler received organic Cr supplements (p < 0.05).
authors.affiliation: Animal Science Department, Razi University, Kermanshah, Iran. mmoeini@razi.ac.ir
authors.forename: Mohammad Mehdi
authors.initials: MM
authors.lastname: Moeini
authors.forename: Akram
authors.initials: A
authors.lastname: Bahrami
authors.forename: Shahab
authors.initials: S
authors.lastname: Ghazi
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Targhibi
mesh_terms: D000821:Animal Feed; D000818:Animals; D001823:Body Composition / Q000187:drug effects; D001835:Body Weight / Q000187:drug effects*; D002645:Chickens / Q000502:physiology*; D002712:Chlorides / Q000494:pharmacology; D002784:Cholesterol / Q000097:blood; D008076:Cholesterol, HDL / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D017608:Chromium Compounds / Q000494:pharmacology*; D004032:Diet; D004435:Eating / Q000187:drug effects; D004531:Eggs / Q000032:analysis*; D005260:Female; D018882:Heat Stress Disorders / Q000378:metabolism*; D006358:Hot Temperature / Q000009:adverse effects*; D008221:Lymphoid Tissue / Q000187:drug effects / Q000254:growth & development; D008297:Male; D009929:Organ Size / Q000187:drug effects; D009942:Organometallic Compounds / Q000494:pharmacology; D010848:Picolinic Acids / Q000494:pharmacology; D014280:Triglycerides / Q000097:blood; D015430:Weight Gain / Q000187:drug effects
chemical_list: D002712:Chlorides; D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D017608:Chromium Compounds; D009942:Organometallic Compounds; D010848:Picolinic Acids; D014280:Triglycerides; D002784:Cholesterol; C017133:chromous chloride; C030614:picolinic acid