Vegetative plants of certain seaweeds were collected from the natural habitat of Kilakarai and Mandapam coast were subjected to SEM-energy dispersive spectroscopic analysis and quantified the following minerals viz., Na, Mg, Si, S, Cl, K, Ca, Mn, P, Fe, Zn and Cr during summer, pre-monsoon, monsoon and post-monsoon seasons in 2007-2008. The order of preferential accumulation of elemental compos...

OBJECTIVE This research analyzed behavioral characteristics of Hanwoo (Bos taurus coreanae) steers during each season and growth stage to enable measurement of the animals' welfare level for precision livestock farming. METHODS A hundred-eight beef steers were divided into three equal groups at a Hanwoo farm according to their growth stage: growing stage (GS), 8 months; early-fattening stage ...

the algal flora of five stations from paddy-fields of golestan province was investigated between october 2006 and september 2007. eight filamentous heterocystous nostocacean are recorded here for the first time from paddy fields of iran: cylindrospermum licheniforme, cylindrospermum stangnale, cylindrospermopsis raciborskii, calothrix ghosei, gloeotrichia longiarticulata, aulosira implexa var. ...

 Phytoplankton growth and microzooplankton grazing were investigated at one station in the Homa Lagoon from February to January in 2006-2007. Our results showed significant seasonal variations in phytoplankton dynamics. Microzooplankton was mainly composed of dinoflagellates and tintinnid ciliates and nauplii. Microzooplankton grazing increased with increasing of temperature. Grazing rate was ma...

BACKGROUND AND OBJECTIVES Shiga toxin-producing Escherichia coli (STEC) strains are human pathogens linked to hemorrhagic colitis and hemolytic uremic syndrome. Shiga toxins (Stx1 and Stx2) are the major virulence factors of these strains. The aim of this work was to study the prevalence and distribution of stx(1) and stx(2) gene in E. coli O157:H7 and non-O157:H7 strains isolated from cattle i...

Abstract Effects of water stress on root and leaf growth rates and their relationships with yield under normal and water stress conditions were examined at the Greenhouse and Research Field of Faculty of Agriculture, Kerman University, Iran, using seven maize cultivars including SC-404, SC-704, BC-666, TC-647, DC-370, Jeta and Kordona. During a period of 14 days, water stress at -0.4 MPa was ...

 Phytoplankton growth and microzooplankton grazing were investigated at one station in the Homa Lagoon from February to January in 2006-2007. Our results showed significant seasonal variations in phytoplankton dynamics. Microzooplankton was mainly composed of dinoflagellates and tintinnid ciliates and nauplii. Microzooplankton grazing increased with increasing of temperature. Grazing ra...

Selection silviculture has become increasingly common for longleaf pine management, yet questions remain regarding residual canopy effects on seedling survival and growth. To determine what levels of residual overstory promote adequate seedling recruitment, 600 containerized longleaf pine seedlings were planted on two sites during the 2007-2008 dormant season. To differentiate overstory from un...