نتایج جستجو برای: chicks were weighed
تعداد نتایج: 3501933 فیلتر نتایج به سال:
Determining the genotypes of CAPN3 gene and studying its relationship to some economic characteristics broiler chickens, which included weekly weights, final live weight, carcass weight parts in addition correlation coefficient for important Ross characteristics. 308 100 chicks were bred 35 days taken. Primary birds weighed all numbered. Genotypes determined by analyzing nitrogenous base sequen...
Present preliminary scientific trial was designed to investigate of microwave effects on Japanese quails as an animal model. Thirty six three days-old quail chicks were randomly divided into 3 experimental groups and received: A) un-treated tap water, B) tap water boiled by electrical heater and then cooled and C) tap water treated by microwave oven and then cooled. The whole experimental perio...
The study was conducted in order to investigate the immuno-enhancing property of the Chinese herbal formula, Gan lian Yu ping feng powder. Three hundred and thirty six 45-day-old chicks were randomly divided into eight groups. The chicks in groups A, B, C were orally given 0.25 g/mL (low-), 0.5 g/mL (middle-) and 1.0 g/mL (high) dose of Gan lian Yu ping feng powder in the drinking water respect...
The present study was performed for investigation on possible effects of exogenous ghrelin (GH-releasing peptide) on liver, heart, gizzard (proventriculus+gizzard), intestine and breast muscle weights. One hundred fertilized eggs were divided into two groups includes control or group1 (without any in ovo ghrelin administration) and group2 (in ovo administration of 100ng/egg ghrelin at day-5). I...
BACKGROUND To control avian coccidiosis with drug-independent strategy effectively and safely, multivalent hyperimmune egg yolk immunoglobulin (IgY) was prepared and its ability to protect against Eimeria tenella infection was evaluated. METHODS Hens were orally immunized with live oocysts of 5 species of Eimeria for six times, antibody titers in serum and yolk were monitored by indirect enzy...
an experiment was conducted to determine apparent ileal digestibility of crude protein (cp) and amino acids (aa) and digestible cp and aa of fish meal (fm) in 21-d-old broiler chickens using the regression technique. four diets containing 0, 1, 2, and 3% fm in place of cornstarch were formulated with fm as the sole contributor of cp and aas in the sequential diets. eighty 14-d-old broiler chick...
Previous studies showed that monochromatic green light stimuli during embryogenesis accelerated posthatch body weight (BW) and pectoral muscle growth of broilers. In this experiment, we further investigated the morphological and molecular basis of this phenomenon. Fertile broiler eggs (Arbor Acres, n=880) were pre-weighed and randomly assigned to 1 of the 2 incubation treatment groups: (1) dark...
s of papers 47 tered via water, in preventing necrotic enteritis (NE) in broilers and reducing fecal bacteria. The NE challenge model included: 200,000 Eimeria acervulina oocysts/bird 5d and Clostridium perfringens (CP) 7d posthatch. Healthy, newly-hatched broiler male chicks (Ross x Cobb commercial source) were randomly placed into wire floor cages. Treatments included positive non-infected co...
Previous studies indicated the positive impact of dietary supplementation of arginine on meat quality and growth, though there is no report regarding the effect of in ovo injection of arginine on meat quality. So, the aim of this study was to evaluate the effect of in ovo injection of different levels of L-arginine on hatchability, growth performance, and meat quality of Ross 308 broiler ch...
This study aimed to characterize production and reproduction performances in Rhode Island Red-White strain chicken developed and maintained at the Central Avian Research Institute, Izatnagar. Three hundred and forty six fertile eggs were set in automated electric incubation and 234 chicks were investigated in three hatches. The performance data was analyzed by least squares analysis of variance...
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