this research was carried out to investigate the effects of various levels of dietary organic selenium supplementation (0, 0.1,  0.2 and  0.3 mg/kg) on reproductive traits of rooster. semen was collected using abdominal massage and samples were mixed together. sperm characteristics including percentage of motile, viable and abnormal sperms were assessed. this experiment was carried out based on...

to investigate the effect of vitamin e supplementation on the response of intercellular adhesion molecule-1 (icam-1) to exhaustive exercise, 16 active men were selected and divided into supplementation and placebo groups based on vo2max. the subjects in each group completed 65 minutes of exhaustive exercise after14 days of supplementation. blood samples were collected before supplementation and...

the aim of this study was to determine the effect of creatine supplementation on sprint and skill performance in young soccer players. seventeen young soccer players (mean age: 17.18 ± 1.37 y, mean high: 169.6 ± 6.17 cm and mean weight: 61.67 ± 1.37 kg) participated in this study. subjects were assigned to either a creatine (5 g of cr, 4 times per day for 7 days) or a placebo group (same dosage...

purpose: to investigate the effects of sodium bicarbonate (nahco3) on exhaustive activity and physiological parameters of fatigue in conscripts. materials and methods: thirty conscripts did wingate test in two groups: sodium bicarbonate group (treatment) and placebo (control) group. in both groups, sodium bicarbonate (0.3 g/kg of body mass) or placebo was ingested 60 minutes before the training...

objective(s): neuroprotective effect of creatine (cr) against β-amyloid (aβ) is reported in an in vitro study. this study investigated the effect of cr supplementation on β-amyloid toxicity in vivo. materials and methods: thirty two, male wistar rats were divided into 4 groups. during ten weeks of study, control group went through no surgical or dietary intervention. at the 4th week of study sh...

background:childhood zinc deficiency is a common problem in many developing countries where people rely mainly on plant based diets with low zinc contents. zinc supplementation is one of strategies to combat zinc deficiency and its consequences in children. the aim of this community trial was to examine the effect of zinc supplementation on the linear growth of children 6-24 months of age and t...

the effects of zinc oxide (zno) and e. coli-derived 6-phytase supplemented-diet on the reproductive performance in aged broiler breeder hens and on immune responses of their progeny chicks were studied. in a 2×4 factorial arrangement, 2 inclusion levels (0 or 300 u kg-1 diet) of e. coli-derived phytase and 4 inclusion levels (30, 60, 90, and 120 mg kg-1 diet) of zno were provided from 62 throug...

ascorbic acid (vitamin c) supplementation has been documented as a useful tool to improve the performance of laying birds reared under harsh environmental conditions. however, there is limited information on the use of ascorbic acid as a means of ameliorating the stressful conditions imposed by feed restriction. to this effect a 3 × 2 factorial experiment was carried out to evaluate the effect ...

the study was conducted to evaluate the effect of different levels of synthetic lysine (slys) on dry matter intake (dmi), average daily weight gain (adg), dry matter conversion ratio (dmcr), carcass characteristics and economics of productionof finisher broiler chicks. as 240 day-old broiler chicks were randomly distributed to 12 pens of 20 chicks each and assigned to four treatment rations in ...