Document Type : Original Article
Authors
1
Department of Animal Science, Faculty of Agriculture, Urmia University, Urmia, Iran
2
Department of nutrition, agriculture university, urmia
3
Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
4
Department of Basic Science, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.logy
5
S.Meysam Abtahi Assistant Professor of Immunology Department of Microbiology Faculty of veterinary Medicine Urmia University,Urmia,Iran Post Code: 57153-1177 meysamabtahi@hotmail.com sm.abtahi@urmia.ac.ir
10.30466/vrf.2025.2060328.4755
Abstract
This study aimed to evaluate the effects of different copper sources experimental copper sulfate (CS), copper methionine (CM), copper carbohydrate (CC), copper dihydrogen phosphate (CP), and Nano copper (CN) on growth performance, carcass characteristics, and intestinal histomorphology in broiler chickens. A total of 300 day-old broilers were randomly assigned to five dietary treatments with six replicates each. During the finisher and the whole experimental periods, CM- and CN-fed birds had the highest and lowest body weight gain, respectively, as compared to the birds in other treatments. Consumption of the CM diet increased the feed intake compared to the different treatments. Feed conversion ratio was increased by consumption of CN as compared to CM during the finisher and the whole experimental periods. In the duodenum, villus height (VH) was significantly increased by CN as compared to control. In the jejunum, consumption of both the CM and CC diets caused the lowest VH, whereas dietary CN inclusion resulted in the highest VH. The VH/crypt depth (CD) ratio was at the lowest and highest levels by CM and CN, respectively. In the ileum, villus width was numerically decreased by CP. CS-fed birds had the highest CD between the treatments. The VH/CD ratio was higher in CP and CN-fed birds as compared to CS ones. Moreover, the goblet cell number was decreased by dietary CP as compared to CM. In conclusion, broiler performance was increased by both CM and CP sources of copper, with methionine-based copper being suggested as a component of chicken diets.
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