Evaluating Raw and Heat-Treated Hempseed (Cannabis sativa L.) with Enzyme Supplementation for Broiler Chicken

A total of ۴۸۰ seven-day-old male Arian broiler chickens were divided into five treatment groups with six replicates each. The treatments were offered to the birds for three weeks (days ۷ to ۲۸) and included a control group, ۱۰% Raw Hempseed (Cannabis sativa L) supplementation (RH), ۱۰% RH with Enzyme addition (RHE), ۱۰% Heat-treated Hempseed (HH) in the diet, and ۱۰% HH with Enzyme supplementation (HHE). A completely randomized design with a ۲×۲ factorial arrangement (raw vs. heat-treated hempseed, with vs. without enzyme supplementation), plus a control group, was used. While dietary treatments (hemp supplementation) significantly increased body weight and feed intake, the heat processing decreased weight gain. Hemp supplementation significantly lowered Coliform and increased Lactobacillus content in the ileum, while processing increased Lactobacillus and enzyme addition decreased E. coli (P< ۰.۰۵). Digestibility parameters were positively affected by enzyme addition (P< ۰.۰۵), but protein digestibility was reduced by heating. There were no significant interaction effects (enzyme supplementation and heat treatment), except for the total Aerobes count of intestinal micro flora (P< ۰.۰۵). In conclusion, hempseed addition in the diet of broiler chickens during ۷-۲۸ days of age improved broiler performance and enzyme supplementation improved microbiology and, more profoundly, digestibility parameters.

کلیدواژه ها:

Arian broiler ، Coliform ، E. coli ، Hemp supplementation