Abstract
Abstract. The present study aimed at investigating the effects of sumac and dried whey powder on growth performance, carcass traits, intestinal morphology, microbial population, and some biochemical parameters and antibody titer against Newcastle disease of female broiler chicks. A total of 360 1-day-old female broiler chicks with an average weight of 38 ± 0.42 g were randomly divided into three treatments. Each treatment was further divided into six replicates. Three treatments were used: chicks were fed by basal diet as control group, basal diet + 0.02% sumac powder (S), and basal diet + 0.02% dried whey powder (DW) for 42 days. Results showed that feed intake of chicks increased significantly in S and DW in comparison with the control group (P < 0.05). Body weight gain was also significantly higher in the treated groups. The serum concentration triglyceride and cholesterol of chicks decreased significantly by S and DW feeding. While low-density lipoprotein (LDL) level decreased significantly, high-density lipoprotein (HDL) levels increased in the S group. Antibody level increased titer against Newcastle disease significantly by feeding treated diet compared to the control group. Data from microbial population investigation showed that E. coli population decreased while Lactobacillus increased in S and DW groups. The data revealed an improvement in the body weight gain, feed conversion ratio because of increased intestinal morphology, antibody level, and some useful microbial population in female broiler chicks receiving the sumac and dried whey powder.
Highlights
Sumac (Rhus coriaria L) is a plant species in the anacardiaceous family that is used as a spice and herbal medicine
Data from this study showed that feeding of S and dried whey powder (DW) diets significantly increased body weight gain and reduced feed intake of chicks (P < 0.05) compared to the control diet
The triglyceride, cholesterol, and low-density lipoprotein (LDL) level decreased significantly in the treated groups compared to control group while S group had the lowest level of triglyceride, cholesterol, and LDL blood plasma
Summary
Sumac (Rhus coriaria L) is a plant species in the anacardiaceous family that is used as a spice and herbal medicine. Sumac is found in hot, temperate, and tropical regions worldwide (Kurucu et al, 1993). It has a long history of use by indigenous people for medicinal and other applications (Rayne and Mazza, 2007). Probiotics have been defined as a live microbial feed supplement that can beneficially affect the intestinal microbial balance, resulting in improved body weight gain and reduce mortality in broiler chickens. Prebiotics are defined as nondigestible, but fermentable food ingredients that beneficially affect the host by selectively stimulating the growth and activity of one or a limited number of species of probiotics bacteria in the colon (Panda et al, 2006). It is shown that dietary supplementation of whey powder linearly increases body weight gain and nitrogen retention in turkey and broiler
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