نتایج جستجو برای: reduces growth and performance
تعداد نتایج: 17068787 فیلتر نتایج به سال:
the main purpose of this study was to investigate any relationship between high school efl teachers metaphorical understandings of their role in class and their self-efficacy beliefs. teachers metaphors were elicited through two different prompts: one picturing what they believed a language teacher should be like in class, and the other demonstrating what they are actually like in class; such...
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...
abstract the first purpose of this study was to investigate the effect of consciousness-raising (c-r) activities on learning grammatical structures (simple present tense in this case) by iranian guidance school efl learners. the second one was to investigate the effect of gender on learning the simple present tense through c-r activities and tasks. finally, this study aimed to investigate the ...
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...
objective: the aim of this experiment was to determine chemical composition, protein quality of corn gluten meal (cgm) and its effect on growth performance of broiler chicks. methods: chemical composition and nitrogen corrected true metabolizable energy of cgm was determined by standard and precision-fed cockerel assay methods. for evaluating of protein quality, 90 male broiler chicks in a com...
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...
Introduction: Vitamin deficiency and iron deficiency anemia are common nutritional problems, at least in children under 5. These materials shortage, especially in the first two years of life, impair physical and brain growth, reduces the child's learning ability, reduces body resistance against infections, behavioral changes, apathy and finally social and economic adverse consequences would be ...
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