Grazing, respiration, excretion, and growth rates of tintinnids1

Variation in absorption and excretion of calcium in grazing sheep in a semi-arid grazing ranch, Punjab, Pakistan

The calcium status of lactating, non-lactating, and male sheep on farm in southwestern Punjab, Pakistan was studied. Pasture and animal were sampled at the end of the first month of summer and winter. All samplings were carried out fortnightly. A mineral supplement was available to all animals throughout the year. Plasma calcium in all animals was not affected by the physiologic state and gende...

Zooplankton Growth, Respiration and Grazing on the Australian Margins of the Tropical Indian and Pacific Oceans

The specific activity of aminoacyl-tRNA synthetases (spAARS), an index of growth rate, and of the electron transport system (spETS), an index of respiration, was measured in three size fractions (73-150 μm, >150 μm and >350 μm) of zooplankton during five cruises to tropical coastal waters of the Kimberley coast (North West Australia) and four cruises to waters of the Great Barrier Reef (GBR; No...

Maximal Rates of Excretion

Received for publication 8 February 1973 and in revised form 18 April 1973. measured with 3H20. Then MIRUS is calculated as: ([mg urea N excreted between 8 and 24 h after dose E] + [BUN at 24 h-BUN at 8 h] X [body water]) X (100/% recovery ["C]urea) X (1/kg BW314) X (1/ 16h). MRUS in 10 normal subjects averaged 65 mg urea N/h per kg BW"' (range 55-76), and in 34 cirrhotics 27 mg urea N/h per kg...

Effect of soaking time on imbibition,weight loss and respiration rates of soybean,corn and barley seeds

Growth and grazing mortality rates of phylogenetic groups of bacterioplankton in coastal marine environments.

Dilution culture experiments were conducted in western North Pacific coastal regions to determine growth and grazing mortality rates of bacterial phylogenetic groups (alpha-, beta-, and gamma-proteobacteria and the Cytophaga-Flavobacter cluster) detected by fluorescent in situ hybridization. Growth rates varied greatly (1.2- to 4.0-fold) among different groups, and they were related to environm...