the objective of the study was to compare the effects of antibiotic virginiamycin, probiotic protexin® and plantago major l. (plantain) on performance, serum metabolites, immune response, and the ileal microbial population of broilers. the experiment was carried out with a total of 200 day-old male ross 308 broiler chickens in a completely randomized design. chickens were allocated to five grou...

objective: this study was conducted to evaluate the effects of different proportions of marshmallow extract (althaea officinalis l.) on growth performance and carcass composition of common carp (cyprinus carpio). methods: common carp with an average weight of 37.65 ± 4.40 g were fed for two months with a diet supplemented with marshmallow (a. officinalis) extract 0.25%, 0.50 and 1%, and with no...

this study was undertaken to evaluate the effect of hydrolysable tannin (ht) and condensed tannin (ct) on growth performance and body composition of nile tilapia. hydrolysable tannin and ct were included into diets at four levels (0, 5, 15, and 25 g kg-1 diet). the diet with zero tannin level acted as control and the response of fish fed diets containing tannin was compared to that of the contr...

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...

background: coccidiosis is recognized as the parasitic disease that has the greatest economic impact on poultry production. modern poultry production is largely dependent upon anticoccidials. objectives: the aim of the present study was to determine and compare the efficacy of two chemical anticoccidials (clopidol and diclazuril) on oocyst shedding and their probable effects on growth performan...

propolis, a resinous substance collected by apis mellifera bees from various plant sources is transformed in the presence of bee enzymes. short- and long-term effects of diet supplementation with ethanol extract of iranian propolis (eeip) was investigated on growth and immunity in juvenile rainbow trout. the fish (mean body weight 30 ± 3.2 g) were fed a commercial diet supplemented with 0 (cont...

In this research, performance of portfolios formed by use of grid strategy based on new variables (aggressive, indifference and defensive stocks) presented by Rahnamaye Roodposhti (1388), and traditional ones (growth, growth-value and value stocks), calculated with Sharpe and Treynor performance measures and tested by an Active portfolio management approach to identify the portfolios by perform...

an experiment was conducted to evaluate the effects of biogen probiotic additives on growth performance of common carp, cyprinus carpio. four practical diets containing 0 (control) , 0.1, 0.2 and 0.3 % biogen probiotic were used to feed fish. seventy-two juvenile common carp (65 ? 3.5g) were randomly distributed between 12 fiberglass tanks of 500 l capacity. during 60 days of feeding trial, the...