A study was conducted to compare Gram positive (Lactobacillus rhamnosus and Berevibacillus laterosporus) and Gram negative probiotics’ bacteria (E. coli Nissle 1917) with antibiotic (Virginiamycin) on serum biochemistry and intestinal microflora in broiler chicks. Total of 140, one-day old male Ross 308 broiler chicks were subjected to a 42-day experimental period. The chicks were divided into ...

Abstract Background Epigenetic regulation of the gene expression results from interaction between external environment and transcription genetic information encoded in DNA. Methylated CpG regions within promoters lead to silencing most cases. Factors contributing epigenetic include intestinal microbiota, which chicken can be potently modified by ovo stimulation. The main aim this study was dete...

This study was conducted to assess the effects of feed particle size (FPZ) and crumble size (CZ) of starter diet on growth performance parameters, carcass characteristics, and small intestinal histomorphology in broiler chicks. Three hundred and sixty male Ross 308 chicks were randomly distributed in a completely randomized design with 3 ´ 2 factorial arrangement consist of three screened FPZs ...

The aim of this study was to evaluate the potential of two probiotic preparations, containing live lactic acid bacteria (Lactococcus lactis CECT 539 and Lactobacillus casei CECT 4043) and their products of fermentation (organic acids and bacteriocins), as a replacement for antibiotics in stimulating health and growth of broiler chickens. The effects of the supplementation of both preparations (...

this study was conducted to evaluate the effect of camphor levels on performance, organ weight, testosterone and thyroid hormones, intestinal selective bacteria, and meat peroxidation of japanese quail. two-hundred 1-d chicks were allocated in 20 cages with five treatments and four replicates (10 chicks per each cage) using complete randomized block design. treatments were including: 0, 62.5, 1...

This study was conducted to determine the effects of three different fat sources and their combination on growth performance, carcass traits and intestinal measurements of broiler chickens reared to 42 d of age. Two hundred day-old male broiler chicks (Ross 308) were randomly assigned to one of five treatments with four replicates of 10 chicks based on a completely randomized design. The dietar...

this experiment was conducted to evaluate the effects of dietary salvia mirzayanii supplementation on performance, carcass characteristics, internal organs and cecal microbial population in broilers. a total of 200, one-day-old broiler chicks (ross 308) were fed five experimental diets containing different levels of s. mirzayanii (zero, 0.25, 0.50, 0.75 and one percent of diet) until 42 days of...

Background & aim: The fruit of Citrullus colocynthis has a bitter taste and antibacterial properties against pathogen factors.The aim of current research was to study the effects of different dietary level of bitter cucumber fruit powderwith and without protexin probiotic supplementation on growth performance, carcass traits and intestinal morphology of broiler chicks....