the present experiment was conducted to evaluate the effects of different levels of vitaminpremix(vp), fed during the last three weeks of a broiler rearing period (22-42 days), on its growthperformance and carcass characteristics. four hundred 22 day old broilers received diets containingfour levels of supplementary vp (0, 33.33, 66.66 and 100%) each at a different weeks of finisherperiod. the ...

the present study was carried out to examine the effects of a vitamin premix (vp) reduction or withdrawal from finisher diet (29-43 days) on performance, immuno-competence, and characteristics of leg bones and meat lipid oxidation of chickens fed on corn-soybean meal based diet. a total of 900 male broiler chickens (ross 308) were allocated to five treatment groups (0, 33%, 66%, 100% and 133% v...

The effects of environmental temperatures on live performance and carcass characteristics of broilers have been well documented [1, 2, 3]. In addition, Cahaner et al. [4] reported that nutritional requirements are affected by variations in ambient temperature. Amino acid requirements and digestibility in broilers and laying hens at high temperatures is known to vary from those that are raised a...

this experiment was conducted to evaluate the effects of dietary salvia mirzayanii supplementation on performance, carcass characteristics, internal organs and cecal microbial population in broilers. a total of 200, one-day-old broiler chicks (ross 308) were fed five experimental diets containing different levels of s. mirzayanii (zero, 0.25, 0.50, 0.75 and one percent of diet) until 42 days of...