This study was carried out to determine the efficiency of local Bacillus isolates to
control large wax moth larvae (Galleria mellonella L.) at GCSAR laboratory in 2012.
Infected larvae were collected from stored wax combs, and the bacteria Bacillus
genus were isolated from dead larvae, or that showing disease symptoms of black
brown spots on larvae cuticle. Bacterium was grown on T3 medium and identified
according to biochemical tests, and the efficacy of isolates was determined on pure
colonies of larvae. The results of biochemical tests showed that the isolates belong
to Bacillus thuringiensis. Isolates were different in pathogenicity. Bt5 isolate was
the most efficient to kill the larvae of large wax moth (72.4 %), and significantly
superior all other isolates (p ≤ 0.01). Bt1 isolate showed a significant difference
with control but non-significant difference with Bt2, Bt3, Bt4, Bt6 and Bt7 isolates.
Total of 33 isolates of lactic acid bacteria from different
samples (Dairy products, Pickles), were isolated and identified
according to the common characteristics of lactic acid bacteria.
Twinty-five isolates were rods and 9 were cocci.
204 samples were collected from various body samples
during the year 2016. These 204 samples distributed as
follows: 133 from urine , 37 swabs of wounds and burns,
10 swabs from the ear and pharynx, 12 from feces, 8
from CSF, 4 from blood. This s
tudy distinctly showed that
gram negative bacilli were the most isolates 136 (67%)
while 68 isolates (33%) were gram positive bacteria .
E. coli dominated (39.68%) of the total gram negative
bacilli.
This study distinctly showed an increase in the ratio of
E. coli resistance to one or more types of antibiotics , we
found that E. coli resistance to all antibiotics except
specific and expensive antibiotics, and we found that its
complete resistance to the second ,third and fourth
generation of cephalosporins , resistance to specific and
antibiotics such as Imipenem.
Pyocyanin was extracted from cultures of Pseudomonas
aeruginosa, which was isolated from sea water by chloroform.
Results study the effect of pyocyanin against human pathogenic
bacteria, which were isolated from Al-Assad hospital laboratory in
La
ttakia, with disk diffusion method showed that pyocyanin has
antibacterial activity against Gram- positive bacteria.
Al-Sourani Dam was built to provide drinking water for inhabited villages in Sheikh
Badr –Tartous, but the lake water is exposed to pollutants from several sources. In this
paper, we discuss the mechanism of pollution and the appropriate measures,
by
determining some physical, chemical and biological characteristics of water in different
sites.
The results showed that turbidity and pH values arise in the autumn and winter
especially in the water of tributaries compared with the water of the lake, this may be due
to the activated runoff following rainfall in this period. Whereas the ammonium ion
showed a significant increase in the lake's tail, that can be attributed to sewage residues
from Broummana Al-Mashaeikh that threw directly into the lake. The results also showed
remarkable seasonal changes concerning the total microorganisms in all studied sites,
where the highest value was recorded in winter that reached 5.36 × 104 cells / 100 ml in
Aine Alzaaror tributary.
we conclude that the main source of pollution of lake's water, was the polluted water
coming from Broummana Al-Mashaeikh, in addition to Aine Alzaaror tributary, that flows
near a restaurant. The second source is Al-Wade Alakhdar tributary that feeds permanently
the lake. So, the lake's water should be sterilized before using for drinking.
- The objective of this study was to assess the level of air
contamination by bacteria in the broiler houses in salamieh region
that Famed of commercial breedings of broiler and relationship
with some impact factors like (birds age- season-breedin
g system -
dust concentration) .
- The numbers of bacteria (mesophile , staphylococci , streptococci
and gram-negatives) and dust concentration were determined in 5
opened broiler houses and 5 closed broiler houses with chicken
houses in different ages (1-6 weeks old) in summer and winter .
Some quality indicators were studied , such as lactic acid bacteria and
probiotic count during and after the preservation period .
The objective of this research was to study the causes , symptoms
and diagnosis of otitis externa in cats, and to investigation the effect
, breed, season on the rate of affection in the veteriniary faculity in
hama university.
The number of case
s was( 346) wich was broght to the
veterinary teaching hosbital in Hama university and from special
clinics.
Four isolates of Streptomyces sp., St.1 and St.2 were isolated
from garden soil of science faculty, St.3 and St.4 were isolated
from Al-Shameia soil Lattakia, by serial dilution on Starch Casein
Agar medium.
The research was conducted with the aim of investigating in the
most important pathogens (coliform_ E.coli_ Salmonella), which
moves from irrigation water to many types of vegetables which
irrigated from it. And compared the extent of contaminatio
n by
irrigation source (treatment sewage, wells), and according to the
type of vegetable (fruit plants, tuberous vegetables), and the
irrigation method(surface irrigation, modern irrigation).
