Effect of Essential Oil of Thyme ( L.) or Increasing Levels of a Commercial Prebiotic (TechnoMOS) on Growth Performance and Carcass Characteristics of Male Broilers.

To investigate the effect of thyme ( L.) essential oil (TEO) or increasing inclusion of a prebiotic (TechnoMOS) on growth performance and carcass characteristics of Ross 308 broilers, 400 one-day-old male broilers (43.5 g, as mean of body weight) were placed in 20 pens (2.

Effects of different levels of dietary black cumin ( L.) and fenugreek ( L.) and their combination on productive traits, selected blood constituents, microbiota and immunity of broilers.

The effects of inclusion of powdered seeds of black cumin (B) ( L.) and fenugreek (F) ( L.) on productive traits, selected blood constituents, microbiota and immunity of broilers were studied.

Effect of different levels of dietary sweet orange (Citrus sinensis) peel extract on humoral immune system responses in broiler chickens.

This experiment was conducted to evaluate the effects of different levels of sweet orange (Citrus sinensis) peel extract (SOPE) on humoral immune system responses in broiler chickens. Three hundred 1-day broilers (Ross-308) were randomly allocated to treatments varying in supplemental SOPE added in the drinking water. The experimental groups consisted of three treatments fed for 42 days as follows: a control treatment without feed extract, a treatment containing 1000 ppm of SOPE and a treatment containing 1250 ppm of SOPE.

Influence of dietary fat source on growth performance responses and carcass traits of broiler chicks.

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 dietary treatments consisted of 4% added fat from three different sources and their combination as follows: T, diet containing 4% tallow; CO, diet containing 4% canola oil; SFO, diet containing 4% sunflower oil; TCO, diet containing 2% tallow+2% canola oil; TSFO, diet containing 2% tallow+2% sunflower oil.