نتایج جستجو برای: four treatments including rangeland as control
تعداد نتایج: 6954577 فیلتر نتایج به سال:
the effect of ethanolic extract of iranian green propolis, rosemary and earthworm meal to determine on performance, immune system and blood metabolites of japanese quail, using 160 mixed-sex quail chicks in a completely randomized design by four treatments (including ethanolic extract of propolis 0.1 percent, rosemary leaves meal 0.5 percent, earthworm meal 0.5 percent and control) and four rep...
The vegetation maintaining of rangelands and desertlands is one of the main techniques desertification and management. The best species for rangeland is native plants that adapted ecosystem with high forage quality and effective soil stability the same as Salsola orientalis and Kochia prostrata plant species in the east of Golestan province. The aim of this study is investigating the production...
this study aimed to investigate the effects of listening strategy training on iranian efl learners listening comprehension and use of such strategies. this work, employing an experimental methodology, was conducted among 60 adult efl learners from a language institute in isfahan, iran, as participants. the participants, who were selected based on the results of a placement test, were assigned t...
in order to investigate the effects of artichoke leaf powder and vitamin eon performance, internal organs relative weight and some blood parameters, 240 day-old quails were assigned to four treatments including, basal diet (control), basal diet supplemented with levels of 1.5 and 3 percent of artichoke leaf powder and basal diet supplemented with 300 mg/kg diet vitamin e with four replicates an...
Medusahead (Taeniatherum caput-medusae (L.) Nevski) is an exotic annual grass invading rangelands in the western United States. Medusahead is a serious management concern because it decreases biodiversity, reduces livestock forage production, and degrades the ecological function of rangelands. Despite the obvious importance of ranchers as partners in preventing and managing medusahead in rangel...
In order to investigate the effect of putrescine and auxin (IBA) on rooting of semi-hardwood cuttings of the GN15 hybrid rootstocks, an experiment was conducted at the Flower Biology Laboratory of Faculty of Agriculture, Tabriz University in 1994. Cuttings were obtained from Sahand Gardening Research Station. This experiment was conducted in a completely randomized design with four replications...
Effect of different feeding levels on water quality, growth performance, survival rate and body composition of Pacific white shrimp Litopenaeus vannamei post larvae were studied in zero water exchange system. Shrimp post larvae with mean weight of 74.46± 6.17 mg were fed for 32 days in 300L fiberglass tanks containing 130L water at density of 1 post larvae L-1. There were five treatments includ...
the aim of this study was to evaluate the effects of different levels of citrus limon essential oil on nutrient digestibility, blood and ruminal metabolites in male holstein calves. this study were conducted using four male holstein calves, each fitted with a permanent rumen cannula (average body weight 650±20 kg) that received experimental diets including control with 600, 800 and 1000 mg/d le...
Soil organic carbon (SOC) is a principal component in soil quality assessment. Knowledge of SOC and total nitrogen (TN) stocks are important keys to understand the role of SOC in the global carbon cycle and, as a result, in the mitigation of global greenhouse effects. SOC and TN stocks are functions of the SOC concentration and the bulk density of the soil that are prone to changes, influe...
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