نتایج جستجو برای: day old male broiler chicks arbor acres strain were used in a completely randomized design with 4 tratments
تعداد نتایج: 21657383 فیلتر نتایج به سال:
this study was carried out to evaluate the effect of different levels of anise seed on the performance, immune system, antioxidant activity and blood estrogen level of broiler chicks. a total of 192 day -old ross 308 broilers were trained for 42 days in a completely randomized design with four treatments, four replicates and 12 birds per each replicate. treatments were included the levels of ze...
in order to investigate the effect of different levels of zinc on some productive parameters of broiler breeder, an experiment was conducted with 300 hens and 40 roosters of ross 308 strain (40 wk old) in 12 week period in completely randomized design with 4 treatments, 5 replicates and 15 hens and 2 roosters in each replicate. treatments consisted of 4 different levels of zinc (80, 110, 140 an...
this experiment was conducted to investigate the effects of different levels of creatine and protein in diets on performance and meat quality of broiler chickens. a total of 320 day old ross broiler chicks were used in a 2×4 factorial arrangement of dietary treatments comprised two levels of protein (ross recommendation and 10% higher than recommendation) and four levels of creatine (0, 0.1, 0....
effect of adding hibiscus sabdariffa (hs) in diet on performance and immune response of broilers was examined during aflatoxicosis using a total of 192 day-old ross 308 male chicks in a completely randomized design with four treatments, four replicates and 12 chicks per each replicate. treatments were include: 1. negative control (without additives), 2. positive control (2.5 mg aflatoxin b1/kg)...
the current study was conducted to evaluate effects of sequential or wet feeding programs subsequent to and early meal feeding regime on performance, carcass characteristics and humoral immunity in broiler chicks. 192 ross 308 chicks (seven-day old) were allocated to four treatments at four replicates (12 chicks per plot) based on a completely randomized design. treatments were included: contro...
The current study was conducted to evaluate effects of sequential or wet feeding programs subsequent to and early meal feeding regime on performance, carcass characteristics and humoral immunity in broiler chicks. 192 Ross 308 chicks (seven-day old) were allocated to four treatments at four replicates (12 chicks per plot) based on a Completely Randomized Design. Treatments were included: contro...
A study was conducted to evaluate the effect of mushroom (Agaricus bisporus) and probiotics (Saccharomyces cerevisiae) on broiler performance. Day-old chicks (n=360) strain (Cobb 400) were divided randomly into eight groups. Each represented a treatment (45 birds/ treatment) with triplicate in completely randomized design. The experimental diets designed as, T1: control, T2: 0.4% powder, T3: 0....
A feeding trail was conducted to evaluate the effects of diets contaminated with Aflatoxin B1 (AFB1) on the performance and blood enzymes of broiler chickens. In a randomized complete-block design with 4 blocks and 4 treatments, 112 day-old male broiler chicks were divided into 16 groups, 7 chicks per. Treatments consisted of three levels of AFB1 in starter diet (0.4, 0.8, and 1.2 ppm) along wi...
this study aimed at examining the effects of iranian efl learners’ anxiety, ambiguity tolerance, and gender on their preferences for corrective feedback (cf, henceforth). the effects were sought with regard to the necessity, frequency, and timing of cf, types of errors that need to be treated, types of cf, and choice of correctors. seventy-five iranian efl students, twenty-eight males and forty...
background: since the prohibition of antibiotic growth promoter in poultry ration by the european :union:, poultry producers have been trying to replace them by other growth promoters like medicinal herbs. lipia citridora is a medicinal herb enriched by several powerful phenolic compounds and with antioxidant and antimicrobial properties which lead to enhancing appetite and growth performance...
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