Zhigang Tang

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This study was conducted to investigate the effect of zinc-bearing zeolite clinoptilolite (Zn-ZCP) on performance, growth performance, nutrient retention, digestive enzyme activities, and intestinal function in broiler chickens. A total of 180 1-day-old Arbor Acres chickens were randomly divided into three groups with six replicates of ten birds for a(More)
OBJECTIVE To observe the effect of testosterone or estradiol on iodine absorption in rat intestine. METHOD 50 male adult Wistar rats were divided into 5 groups randomly. 50 females were divided into another 5 groups. Among them, 4 groups were bilaterally testectomized or ovariectomized, 1 group was sham-operated. 7 days after operation, the castrated rats(More)
OBJECTIVE The measuring time and measuring intervals to evaluate different type of air cleaner performance to remove formaldehyde were provided. METHODS The natural decay measurement and formaldehyde removal measurement were conducted in 1.5 m3 and 30 m3 test chamber. RESULTS The natural decay rate was determined by acquiring formaldehyde concentration(More)
The solubility of CO2 in ester mixtures under high pressures are studied in this article. The constant-volume method is used to determine the solubility of CO2 in DMC + diethyl carbonate system, DMC + propyl acetate system, DMC + propylene carbonate system, and DMC + ethylene carbonate system from 282.0 K to 303.0 K. It is found that the solubility of CO2(More)
OBJECTIVE A method for monitoring low concentration of benzene, toluene, p-xylene, o-xylene (BTX) in ambient air is set up. The optimum of desorption and analysis parameter is selected. METHODS Tenax TA adsorption/thermal desorption/capillary gas chromatography is used. RESULTS The relative standard deviation of benzene, toluene, p-xylene, o-xylene in(More)
OBJECTIVE To establish the monitoring method to simultaneously measure 31 volatile organic compounds in decorated rooms using two-stage thermal desorption-capillary gas chromatography. METHODS Using the Tenax TA absorption tube to sample, and subsequently desorbed and analyzed by two-stage thermal desorption capillary gas chromatography column, and(More)
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