In most areas of the world, broiler chickens are raised in floor systems, but cage confinement is becoming more common. The welfare of broiler chickens in cages is affected by movement restriction, poor bone strength due to lack of exercise, and prevention of key behavioral patterns such as dustbathing and ground scratching. Cages for broiler chickens also have a long history of causing skin an...

The aim of this study was to evaluate the effects of eucalyptus leaf powder (ELP) and eucalyptus essential oil (EEO) on growth performance and immune response of broiler chickens. A total of 160 broiler chicks were assigned randomly into five dietary treatments from 7-42 days of age. Dietary treatments included: a control diet, control diets plus 1,000 or 3,000 mg/kg of ELP, and control diets p...

Background & Aim: A feeding trial was conducted to investigate the effect of periodically use of garlic on growth ‎performance, and antibody titer to Newcastle and infectious bursal diseases in broiler ‎chickens. Experimental: Ross broiler chicks randomly allocated into the 10 dietary treatments ‎for 6 weeks. A 3 × 4 factorial experiment was used as three periods of feeding (starter, grower an...

An experiment was conducted to determine the effect of supplementing various concentrations (0, 100, 200, 300, or 400 μg/kg diet) of organic Se on growth performance, carcass traits, oxidative stress, and immune responses in commercial broiler chickens reared in open-sided poultry house under tropical climatic conditions. Each diet was fed ad libitum to eight replicates consisting of six birds ...

The aim of this study was to investigate the effect of mushroom waste and probiotic levels on growth performance, carcass characteristics, and meat quality in broiler chickens. A 2 × 3 factorial arrangement with two levels of probiotic supplementation (0 and recommended rate) and three levels of mushroom waste inclusion (0%, 3%, and 6%) was used in a completely randomized design using male broi...

this experiment was conducted to evaluate the effects of different levels of artemisia sieberi oil (zero, 100, 200 and 300 mg/kg) and antibiotic on performance and blood parameters in broiler chicken. 200 day-old broiler chickens (ross 308) were allocated to five treatments, four replications with a completely randomized design. in total period, broilers were fed dietary artemisia sieberi oil a...

Intensive selection of broiler breeders in the direction of rapid growth rate and increased final body weight has led to the appearance of a number of metabolic diseases in broilers. The most important among them include sudden death syndrome (SDS) and ascites which are directly associated with cardiovascular and respiratory system failure of rapidly growing birds (KRANEN et al., 1998; IMAEDA, ...

The aim of the experiment was to evaluate effects of zinc gluconate (ZnGlu) and probiotic administration on the daily rhythm of cloacal temperature (tcloacal) in broiler chickens of different age groups during the hot-dry season. One-day-old broiler chicks (n = 60) were divided into groups I-IV of 15 chicks per group, and treated for 35 days: Group I (control) was given deionized water; Group I...

The objective of this study was to find a relationship between blood gas parameters and thyroid hormoneactivity with ascites syndrome in broiler chickens exposed to cold temperature and receiving a high qualitydiet. One hundred and sixty one-day-old broiler chicks were randomly divided in two equal groups. Toincrease the incidence of ascites, chicks of group 1 were fed ad libitum with a higher ...