BACKGROUND: It is important to understand the efficacy of immunoregulatory materials, herbal remedies or probiotics, in different parts of immune system following vaccination with different tropism. OBJECTIVES: Aim of this study was to evaluate the effect of Echinacea purpurea and a probiotic (protexin) on systemic and mucosal immune response in turkey. METHODS: A total of 288 1-day-old male tu...

this study was carried out to determine the effect of different levels of clove essential oil, as a natural growth promoter and probiotic on performance,carcass traits and serum components of broiler chickens. a total of 240 straight run day-old commercial broiler chicks (cobb 500) were distributed randomly into five groups. each group was subdivided into four replicates with 12 chicks each. th...

this study was carried out to determine the effects of different levels of protein and probiotic (protexin) on performance, and immune response in ross (308) broiler exposed to heat stress. five hundred and forty one-day old broilers were employed in a compeletly randomized design (3×3 factorial arrangement) of 3 replicates for each treatment. the diets were formulated according to nrc (1994) r...

background: it is important to understand the efficacy of immunoregulatory materials, herbal remedies or probiotics, in different parts of immune system following vaccination with different tropism. objectives: aim of this study was to evaluate the effect of echinacea purpurea and a probiotic (protexin) on systemic and mucosal immune response in turkey. methods: a total of 288 1-day-old male tu...

this experiment was conducted to evaluate and compare antibiotic, organic acid, probiotic and prebiotic effects on performance, egg quality and blood metabolites in commercial laying hens. the experiment was a completely randomized design with 160 laying hens strain hy line (w-36) from 32 to 42 weeks of age with 5 treatments and 4 replicates of 8 hens each. the experimental treatments consisted...

The aims of this study were the comparative study of probiotic, acidifier,antibiotic growth promoters and prebiotic on activity of humoral immune and performance parameters of broiler chickens.500 one day old male broilers (308 Ross strain) were divided into 5 groups: A, B, C, D and E. Each group with equal numbers of male included 4 replicates (25 chicks per replicate). Group A was as control ...

The aim of this study was to investigate the effect of two different levels of starter protein and amounts of milk fed on animal health, fecal score, immune responses and microbial population in the rumen of Holstein male calves. Two levels of starter crude protein (17 and 20% of starter dry matter (DM) and two levels of milk fed (7 and 10% of body weight) were combined in a 2 × 2 factorial exp...

In this experiment, the influence of prebiotic and probiotic supplementation in the broiler breeder diets on body weight, mortality, feed intake, egg production, hatchability and humoral immunity response was investigated. A total number of 13140 female and 1260 male breeders (Cobb 500) with 26 wks of age were allocated to three treatments with six replicates (800 birds each replicate). Breeder...