OBJECTIVE Examine the effect of weekday exposure over 6 months to different lunch sizes on energy intake and body weight in a free-living sample of working adults. METHODS Adults (n = 233) were randomly assigned to one of three lunch size groups (400 kcal, 800 kcal, and 1,600 kcal) or to a no-free lunch control group for 6 months. Weight and energy intake were measured at baseline, and months...

a study was conducted to determine the efficacy of esterified glucomannan, sodium bentonite and humic acid, in counteracting the toxic effects of aflatoxin in experimentally contaminated diets (254ppbaf) fed to broiler chickens. 7-day-old male broiler chicks of similar weight were randomly assigned to one of the nine dietary treatments with four replicates of 12 chicks each. chicks were grouped...

the aim of this study was to assess the meat quality attributes of broiler chickens fed diets supplemented with silver nanoparticles coated on zeolite. a total of 375 one-day-old broilers was assigned in a completely randomized design to 1 of 5 treatment groups including: basal diet, basal diet supplemented with 1% zeolite, and basal diet supplemented with one of the three levels of zeolite coa...

few studies have investigated the effect of exercise on homocysteine and 15-f21-isoprostane in animal models. the present study was designed to examine the effect of long-term exercise and/ or high cholesterol diet on mda, 15-f21-isoprostane and total homocysteine in the aorta and plasma of rabbits. methods: 56 male rabbits were divided into four groups: normal diet (control), normal diet with ...

In this experiment, the effects of fennel and thyme extracts with and without flaxseed were investigated on performance and egg quality of Leghorn-type laying hens (Hy-Line W-36). 200 laying hens from 26 to 38 weeks of age were assigned to five dietary treatments with five replications. The treatment groups were: 1) Control (a diet without any additives); 2) control diet plus fennel (40 mg/kg f...

introduction in many countries, poultry industry is an important economic activity. consequences of the use of antibiotics, as a growth-promoting additive, were the appearance of bacterial resistance, thus limiting the use of antibiotics led to find safer alternatives by researchers and probiotics have been introduced as a suitable alternative. according to the definition of the fullers: probio...

to evaluate the effect of essential oils of oregano on performance, immune response in broiler chickens arian, an experiment in a completely randomized design with a total of 500 broiler chicks, in 5 treatments, including the control diet, control diet + 100 mg/kg protexin, control diet + 150 mg/kg avilamysine and control diet + 200 and 400 mg/kg oregano oil with 4 replicates and 25 chicks were...

The aim of our study was to evaluate the effects of chitosan as immune stimulator on some hematological parameters and stress resistance in rainbow trout. Nine hundred rainbow trout (with initial body weight of 25 ± 0.1 g) were obtained from a local farm and acclimated to the laboratory conditions for one week. After that fish were randomly divided into four groups in three replicates. Each gro...

The aim of this study was to evaluate the effect of organic selenium supplementation on the immune response of broilers vaccinated against coccidiosis, Infection Bursal Disease Virus (IBDV) and Newcastle Diseases Virus (NDV). The study included three treatments (T), T1= control (inclusion of inorganic selenium in a basal diet), T2= basal diet + 0.2 ppm of organic selenium as selenomethionine an...