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Register a new userSemen Characteristics in Growing Shami Male Goats
مواصفات السائل المنوي في ذكور الماعز الشامي النامية
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أجريت هذه الدراسة في محطة بحوث قرحتا لتحسين الماعز الشامي لدراسة خصائص السائل المنوي في 10 جدايا نامية من ذكور الماعز الشامي بدءًا من عمر 8 أشهر و حتى عمر 21 شهرًا. أخضعت جميع الحيوانات لظروف الرعاية و الإيواء السائدة في المحطة، و استخدم المهبل الاصطناعي لجمع عينات ،(pH) السائل المنوي أسبوعيًا لتقييمه من حيث الحجم، و الحيوية، و درجة تركيز شوارد الهيدروجين و التركيز وفقًا لثلاث طرائق (شريحة نيوبار، و المطياف، و موشور قياس كثافة السائل المنوي). أظهرت النتائج أن المتوسطات العامة لكل من حجم القذفة، و الحيوية، و التركيز، و درجة تركيز شوارد ،0.07 ± 0.14 بليون/مل، و 6.52 ± 1.41 %، و 3.57 ± 0.07 مل، و 65.24 ± الهيدروجين كانت 0.9 على التوالي. و لوحظت تغيرات فصلية في هذه المقاييس، كما وجد ارتباط إيجابي بين حجم القذفة و حيوية 0.01 )، بينما كانت الارتباطات بين درجة تركيز شوارد الهيدروجين و بقية >p ،0.42= r) النطاف .(0.01 >p) مواصفات السائل المنوي المدروسة سلبية و معنوية و قد أوجدت معادلتا انحدار خطيتان لتحديد تركيز النطاف بالاعتماد على قراءات المطياف و الموشور.
This Study was carried-out at Shami Goat Improvement Station in Karahta. Ten growing Shami male goats, aged 8 months, housed and managed under the same conditions were used to study the semen characteristics. Artificial vagina was used to collect semen at weekly intervals, for 13 months to determine the volume, motility, pH, and sperm concentration using Neubaure- Spectrophotometer and Spermiodensimeter techniques. Overall averages and standard errors of volume, motility, concentration, and pH were 0.9 ± 0.07 ml, 65.24 ± 1.41%, 3.57 ± 0.14 billion/ml, and 6.52 ± 0.07, respectively. Seasonal variations were observed. A positive significant correlation between volume and motility (r= 0.42, P<0.01) was found, while negative correlations (P<0.01) between pH and other studied semen characteristics were recorded. Linear equations for detecting sperm concentration as measured by either, Spermiodensimeter or Spectrophotometer were obtained.
References used
Ali, B. H., and A. I. Mustapha. 1986. Semen characteristics of Nubian goats in the Sudan. Animal Reproduction Science. 12:63-68
Almeida, G., and J. Pelletier, 1988. Abolition of seasonal testis changes in the Ile-de-France ram by short light cycles: relationship to luteinizing hormone and testosterone release. Theriogenology. 29: 681-691
Austin, J.W., R. B. Leidy, G. M. Krise, and E. W. Hupp. 1986. Normal values for semen collected from Spanish goats by two methods. Journal of Applied Physiology. 24(3):369-72
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This Study was carried-out in Karahta station for improvement of Shami
goats, Directorate of Animal Production Research, Ministry of Agriculture and
Agrarian Reform. Fifty growing Shami male goats aged ٣ months, were used to
measure the growth rat
e of testicular parameters, their relation to the
development of body weight and the effect of several factors on their
development from weaning at ٣ months to ٢١ months of age. All kids housed
and managed under the same conditions.
This study was carried out at the Shami Goat Improvement Station at
Karahta. Twenty one week old Shami male goats were used to measure the
concentrations of testosterone and LH hormones in plasma over a period of 21
months, using the Enzyme Linked
Immune Sorbent Assay (ELISA), in order to
determine the sexual puberty age. All kids were housed and managed under the
husbandry regimes applied at Karahta station.
The research was carried out in Karahta Research Station for Shami goats
by using 84/head/Shami kids (122±18.65 days old and 18±3.77 kg body weight).
This trial continued for a 90 day period. Its goal was to find out the possibility
of reducing th
e offered concentrated feed in about 40% from the regular
requirements for growing and replacing it by improving the nutritive value of
the offered straw when they treated with urea, molasses or both of them.
The Animals divided randomly into six treatments according to the offered
feed for each treatment as the follows:
Untreated wheat straw (control), wheat straw treated with 20% molasses,
1% urea, 1% urea and 20% molasses, 2.5% and with 2.5% urea and 20%
molasses.
This research was carried out in four different regions on the Syrian coast on four herds of Shami goats different in numbers. These were grown in different ways depending on farmers' concepts and needs, and the geographic location of each region. T
he number of goats that were studied was (44). The daily average of milk production per goat was calculated, in addition to the monthly average and overall average for every herd during the lactation season which was divided into two phases (Breastfeeding, Lactation) .In the first phase it was (2493,9 – 2238,6 – 1776,6 – 81,6) L ordered by herd and method of breeding (4 – 2 – 3 – 1) and same was in the second phase. The average production rate was (54,27)% in first method of first herd and in other methods was lower than (50)% and increased in other herds (49,39 – 45,36 – 44,16)% respectively (2 –4 – 3 – 1). It was noticed that in the second phase of Lactation the herd of first method retracted to lower than (50)%and rose in other herds (55,83 – 54,63 – 50,60 – 45,72 )% Respectively (1 –2 – 4 – 3). Statistical analysis demonstrated the lack of significant differences in second and forth herd in spite of the different methods used in the other herds, and in second phase statistical analysis was in four herds in accordance with different methods of breeding.
Lactation season
Lactation phase
Care style
the daily-monthly average of Production
monthly average of Production
over all average of Production
average for every phase
موسم الإدرار
مرحلة الإدرار
نمط التربية
متوسط الإنتاج اليومي-الشهري
متوسط الإنتاج الشهري
متوسط الإنتاج الكلي
متوسط الإنتاج لكل مرحلة
المزيد..
Shami goat in Syria is one of the important domestic breeds, because of its
high productivity and breeding capacity under the hard environmental
conditions and it is still being used in crossbreeding with Mountain goats as a
donor for milk produci
ng traits. This breed is still far away from scientific
investigations even it has been exposed to a random crossbreeding with
Mountain goats by goat breeders. This has lead to the possibility of losing some
of its genetic characteristics which are not detected yet. In this research the
genetic diversity among groups of pure Shami goats was determined using
ISSR-PCR on blood and results indicated that there was a molecular genetic
diversity among studied goats and polymorphic rate was register to 100%.
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