a study was carried out to evaluate the secondary sexual characteristics of four strains of cocks, comprising of two (2) exotics; bovan nera black (bnb) and isa brown (isb), one (1) improved local strain, shika brown (sb) and one (1) unimproved local strain, normal feathered cock (nfc). a total of 64 birds (16 for each strain) at 36, 38, 40 and 42 weeks were used for the study. the result indic...

A study was carried out to evaluate the secondary sexual characteristics of four strains of cocks, comprising of two (2) exotics; Bovan Nera Black (BNB) and Isa Brown (ISB), one (1) improved local strain, Shika Brown (SB) and one (1) unimproved local strain, normal feathered cock (NFC). A total of 64 birds (16 for each strain) at 36, 38, 40 and 42 weeks were used for the study. The result indic...

in this research, 514 soil samples and dead larvae were collected from khorassan, lorestan, tehran, ghazvin, east azarbaijan, west azarbaijan, mazandaran and hamedan provinces. b. thuringiensis was isolated from the samples using a heat-acetate method and the isolates were identified and classified using biochemical tests. the frequency of b. thuringiensis in soils with different plant communit...

conclusions these results indicated that eaec strains isolated from iranian children with diarrhea were heterogeneous and showed high resistance rates against commonly used antibiotics, which was similar to that reported in studies performed in other countries. results significant percentage of local eaec strains carried the virulence plasmid genes and formed biofilms. in addition, these strain...

governerate, Egypt. Spirulina platensis was obtained from cyanobacteria Lab., Microbiology Dept., Sakha Agricultural Research Station, GC/MS analysis showed that 37 and 7 bioactive compounds A. variabilis S. were identified, respectively. Moreover, the area percentage of same compound varied according to type cyanobacteria. The major phytochemical constituents in methanol extract are Pentadecan...

in present study two species of pleurotus with different morphological characteristics were collected from guilan forest and then cultured on mea medium. spawn was prepared on wheat grains and finally all strains were cultivated on rice straw. identification of species was performed by pcr, microscopic and macroscopic characters. results revealed that our local strains are known as pleurotus os...

background: the aim of this study was to evaluate the effect of chronic injection of morphine on infection with leishmania major (l. major) in sensitive balb/c and resistant c57bl/6 mice. methods: morphine injections (2 times /day with 12 hrs intervals, s.c) were begun one week before parasite inoculation. the first group of mice strains was infused with 1.5mg/kg morphine, the second group with...