an experiment was conducted to evaluate the effects of high dietary levels of selenium (as sodium selenite) and copper (as copper sulphate) on growth performance, serum biochemical parameters and antibody production against newcastle disease vaccine (ndv) virus in broiler chickens. a total of 160 ross 308 unsexed day old broiler chickens were randomly allocated into four treatment groups (n=40 ...

This study was carried out at the poultry farm of animal production Dep. College Agriculture –University Anbar during period from 28/10/2021 to 8/12/2021 (42 days), show effect adding Cordyceps sinensis (C.S.) extract and a probiotic in Dressing ratio, relative weights internal viscera Microbial content broilers. 210 chicks one day unsexed strain (Ross 308) were used with an average weight 40 g...

Immunocompetence of the 2001 Ross 308 broiler strain and the 1957 Athens Canadian Randombred Control (ACRBC) strain was compared when they were given diets representative of those that were being used in 1957 and 2001. Antibody response against SRBC, in vivo lymphoproliferation against Phytohemagglutinin-P (PHA-P), and inflammatory and phagocytic responses of the macrophages were measured. The ...

An experiment was conducted to study the effect of day length, sex, and genotype (Ross × Ross 308 and 708) on mortality causes, bird mobility, footpad health, and ocular size, with 4 trials within the experiment. Four graded day lengths were chosen to allow the study of relationship between day length and health parameters, including 14L:10D, 17L:7D, 20L:4D, and 23L:1D. The primary statistical ...

Studies delineating the dietary Val needs of modern commercial broilers are sparse. Three studies were conducted to determine the dietary Val nutrient needs of Ross x Ross 308 male broilers. Three time periods were evaluated independently, 0 to 14 d (starter), 14 to 28 d (grower), and 28 to 42 d (finisher) of age. Corn- and peanut meal-based diets for each feeding phase served to titrate the Va...

This experiment was conducted to investigate the effect of phytase supplementation in diets reduced amino acids ( AA ), crude protein CP and phosphorus P ) on growth performance, carcass traits, tibia ash broiler chickens. A total 2,240 unsexed Ross 308 chickens were used 56 floor pens with 40 birds each fed one eight dietary treatments seven replicates until 35 d age. positive control PC diet ...

the present study was done to study the effects of water hypericum perforatum extract (whpe) on performance, abdominal fat, carcass characteristics, and blood biochemical parameters of broilers with 160 day-old ross 308. broilers were randomly distributed among the16 experimental units of four treatments with four replications (10 birds in each replicate) for 42 days. the treatments were includ...

Abstract. An unsatisfactory microclimate in poultry premises contributes to damage the form of a decrease average daily gain broilers by 10 %. Purpose research is study effect relative humidity at same temperature regime on immunity and productivity Ross-308. Research methods. The experiment was carried out broiler chickens cross Ross-308 up 35 days age. In group II, period 0–1 growing broilers...

Body weight, feed consumption, and mortality were measured in the 1957 Athens-Canadian Randombred Control (ACRBC) strain and in the 2001 Ross 308 strain of broilers when fed representative 1957 and 2001 diets. The dietary regimens were chosen to be representative of those used in the industry in 1957 vs. 2001. The 1957 diets were fed as mash, the 2001 starter was as crumbles, and the grower and...