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Register a new userThe pathological changes associated with white muscle disease in Awassi sheep
التغيرات التشريحية و النسيجية للإصابة بمرض العضلات البيضاء عند خراف العواس
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أجريت الدراسة على خراف بأعمار مختلفة من عمر يوم واحد و حتى 5 أشهر و التي بدا عليها الأعراض السريرية التشخيصية لمرض العضلات البيضاء. و تم التأكد بإجراء الصفة التشريحية لجميع الخراف النافقة أو المذبوحة اضطرارياً و تسجيل جميع التغيرات المرضية العيانية و المجهرية.
The study carried out on various aged sheep between day to five months which suffered from diagnostic clinical signs of white muscle disease. Autopsy to all the sheep dead or slaughtered and record all observations and histological biopsies of different organs was collected. The most outstanding features of gross inspection were wasting, pale in visual mucous membrane, dyspnea, lung edema, and the most parts of muscle were white.
References used
Bostedt H., Schramel P. 1990 The importance of selenium in the prenatal and postnatal development of calves and lambs Biological Trace Element Research , Volume 24, Issue 2, pp 163–171
Chema A.H., Gilani S.H., 1978 - Cardiac myopathies in neonatal lambs: Histochemical Studies, Department of Pathobiology, J. Biol Neonatology, 34:84–91
Gardiner M. R, 1962 - White muscle (nutritional muscular dystrophy of sheep in western australia Journal of Australian Veterinary, Vol.38,issue7 p. 387-391
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This study was carried out on 90 broiler chicks which divided into three groups. The first group has been given 0.75 g/L potassium nitrate and the second group was given 1 g/L potassium nitrate with drinking water for 30 days, While the third group w
as regarded as a control.
The birds were reared in same keeping house and feeded with the same ration without any additives and no vaccinations were applied.
All birds were sacrificed and examined by naked eye. Then the thymus gland was fixed by formalin and stained microscopic sections were examined by microscope.
The histological changes in the birds which dosed by 1 g/L and 0.75 g/L of nitrate were similar and the observed changes were the small size of cortex in some lobules, and the cortex were separated from bulb with increase the number of Hassall bodies in the bulb region, also there were vacuoles and reticular cells in different stages of degeneration and edema in the connective tissues in comparison with control group.
These results confirmed that nitrate had toxic effects on the tissues of thymus, and as a sequence reduced the number of T cells which lead to decrease the resistance and Immune response of the birds and retarded the growth rate.
The aim of this experiment was to study Histological changes associated
with different stages of infection with hepatic coccidiosis induced by
Eimeria stiedae in rabbits.
This study was carried out in Hama Scientific Research Center from
04/22/2010 until 01/08/2010. Twenty eight Awassi aged 160-180 daysold,
and weighed 30 kg in average were assigned into four groups, and
continued the experiment for two (101 days)
them (11 days) introductory
period to accustom the sheep on the bush studied in order to study the
effect of olive pomace on some blood chemical components levels in
Awassi sheep the one hand, and the impact of the using olive pomace on
their live weight on the other hand.
Aiming to study the effect of propolis powder on some blood
parameters of sheep, propolis powder was used in feeding of sheep
by adding it in the form of dry powder .
The research was carried out Syrian Awassi sheep which they are
locally existed
.
Sheep were divided into four groups (control and three experiment
groups) (2 , 3 , 4) k.g/100k.g diet of propolis powder were added to
diets.
The research was conducted on 24 ewes of Awasi sheep. The
animal study were divided into 4 groups each includes six ewes.
The first three groups were injected via variant proportions of
BST hormone ( as serial doses 40 mg, 80 mg, and 120 mg)
dail
y for 2 weeks. The fourth group was considered as control
group. It was measured the quantity of morning milk and
measurement of fat and protein and lactose one time every
week. Tissue specimen was taken from udder to study the
changes of secretive vesicles.
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