This research was carried out to study some hattching egg traits and chick weight at
day old in black type of Syrian local hens and Egyptian Fayoumi strain , and study the
differences in egg traits and chicks which come from hybrization between Syr
ian black
male and Fayoumi female.
Results showed that the average egg weight of Syrian hens was 52.33 g and of
Fayoumi hens was 46.86 g .
The fertility rate increased in hybrid egg compared with parents . It was87.94% in
hybrid compared with 84.08% in Syrian hens and 77.22% in Fayoumi strain hens.
The day old hybrid chick weight increased compared with Fayoumi chick. It was 32g
in hybrid chicks while it was 30 g in Fayoumi chicks , and it was lower compared with
black Syrian chicks (35g). Hatchability rate was 89.5% and 92.3% in Syrian local hens
and Egyptian Fayoumi hens respectively .And this rate decreased to 82.6% for the hybrid .
Chicks hatched decreased to 69.2% for hybrid compared with 72.93%for Syrian local hens
and 69.44% for Egyptian Fayoumi hens .
The mortality of hybrid chicks was 3.3% , it was lower compared with mortality of
Fayoumi chicks (6.05%) and higher compared with mortality of Syrian chicks (2.22%).
Land degradation deteriorates environmental systems and has direct and
negative effects on crops yield, pastures and forests. Land degradation is an old
phenomenon but in the last years it accelerated and spread widely to reach
some interne areas
in Syria like the studied area (Blay) which situated on the
road of Damascus-Sowyda. In this paper morphological, physio-chemical,
hydraulic and fertility study was done to clarify and define the reasons of this
degradation in this specified area. Three land sections were done and
morphologically described on site, soil samples were taken for analyses in the
laboratory. Results showed that, the degradation may be related to different
reasons like high apparent density which indicates the soil compacting, the low
cation exchange capacity (CEC) and the low hydraulic conductivity with a low
percentage of available water. Results also showed that the adding different
percentage of soil conditioners, like hay, compost, polymer and manure
ameliorates in different ratios the physical and hydraulic properties of soil.
This study aimed to detect the relationship between some metabolic
indicators of energy with fertility results in the period: 8 weeks
before calving till 8 weeks after calving in dairy cows.
This study aimed to detect the relationship between some metabolic
indicators of energy with fertility results in the period: 8 weeks
before calving till 8 weeks after calving in dairy cows.
Data on ١٦٠١ records over five years were used to study the reproductive
and productive performance of Awassi ewes kept at the animal husbandry
station (Darnajookh) in Iraq.
The overall means were ٨٠,٦٩±١,١٪, ١,٠٧٧±٠,٠٠٨, ٩٢,٨٢±٠,٨٣٪,
٠,٨٠٥±٠,٠١٤
, ١٨,٩٨±٠,٣٥ kg, ٥٣,٣٨±٠,٣٢ kg and ٢٢,٥١±٠,١٨ kg for
fertility, litter size, pre-weaning survival rate, number of lambs weaned per
ewe exposed to the rams, ewe productivity ( total weight of lambs weaned
per ewe exposed to the rams), body weight of ewe at breeding and weaning
weight of lambs, respectively.
This research aims to shed light on the reality of population growth and its
components and highlighting the characteristics and changes in the educational structure of
the population in Syria during the period studied. This study also aims at know
ing the
position occupied by the population in Syria on the steps of the educational ladder, through
the analysis of the percentages for each stage of educational levels.
One of the most distinctive results that have been reached, that there is a direct
relation yet weak and insignificant statistically between the changes of the population
growth rate and those of the educational structure in Syria. Accordingly, those changes of
the educational system are related to other changes than the ones of the population growth
rate such as the education, government expenditure on education and higher education
assimilation policies ,etc.
This investigation was conducted at the Pome and grapevine
Division in Sweida governorate in 2014-2015. Four introduced
pear cultivars (Anjou, Bartlett, Red Bartlett and Beurre Bosc) were
studied, through fruiting and growth organs, fertility, average of
fruit weight, and the yield at P< 0,05.
