نتایج جستجو برای: 21 days of age
تعداد نتایج: 21234226 فیلتر نتایج به سال:
This study was carried out to evaluate the duration of time of feeding starter and finisher diets on live performance and carcass characteristics of female broilers. Starter diet was fed to 14 or 21 days of age. Finisher diet was fed beginning at 35 or 42 days up to 49 days of age. The results indicated that reduction of duration of feeding starter diet reduced weight gain (P<0.0071) and impair...
The objective of the current study was to examine effect replacing maize with new or stored wheat on nutrient intake, digestibility, digesta viscosity, and growth performance growing broilers from 1-21 days age. For this purpose, 560 one-day-old male broiler chicks were randomly divided into seven experimental treatments, each 8 replicates 10 birds. control diet a corn soybean-based diet, while...
Broiler chicks were reared on either wet litter or dry litter to compare the development of footpad dermatitis (FPD). Broilers reared on wet litter first developed FPD at 14 days of age. Their FPD scores increased sharply after 21 days of age, reaching 2.92 at 42 days. In broilers reared on dry litter, FPD was first observed at 28 days of age, and the FPD score was only 0.70 at 42 days. When 21...
Background: One of the most growing diseases is the onset of atherosclerosis which can be started from a fetal age. As a result, the intrauterine environment plays a role at risk of spreading this disease. Changes in vascular function considered to be as an indicator for vascular disease. Effective factors on vascular function are enzyme eNOS and apoptotic regulator factors included BCL-2 an...
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
there is less published research about how teachers in efl contexts respond to students who are relatively less mature and less competent l2 writers. while writing researchers have examined various issues concerning peer and teacher response in writing-oriented classes, little research has centered on the effect of collaborative tasks particularly dictogloss on writing skills. output collaborat...
OBJECTIVES To evaluate the efficacy of cognitive and physical rest for the treatment of concussion. STUDY DESIGN High school and collegiate athletes (N = 49) underwent post-concussion evaluations between April 2010 and September 2011 and were prescribed at least 1 week of cognitive and physical rest. Participants were assigned to groups on the basis of the time elapsed between sustaining a co...
abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...
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