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Register a new userDevelopment of Testicular Measurements of Growing Shami Male Goats
تطور أبعاد الخصى في ذكور الماعز الشامي النامية
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أجريت هذه الدراسة في محطة بحوث قرحتا لتحسين الماعز الشامي التابعة لمديرية بحوث الإنتاج الحيواني في وزارة الزراعة و الإصلاح الزراعي. استخدم خمسون جديًا من ذكور الماعز الشامي بعمر ٣ أشهر لقياس نمو أبعاد خصاها و علاقتها مع تطور وزن الجسم و تأثير بعض العوامل فيها، و ذلك ابتداء من فطامها في عمر ٣ أشهر و حتى عمر ٢١ شهرًا. أخضعت جميع الجدايا إلى ظروف الرعاية و الإيواء السائدة في محطة قرحتا.
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 rate 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.
References used
Ahmed, N., and D. E. Noakes. ١٩٩٥. Seasonal variation in testis size, libido and plasma testosterone concentration in British goats. Animl. Science. ٦١: ٥٥٣- ٥٥٩
Bongso, T. A., M. R. Jainudeen, and A. S. Zahrah. ١٩٨٢. Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats. Theriogenology ١٨:٥١٣-٥٢٤
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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.
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.
This study was carried out at Camel Research Station, Deer Al-Hajar,
Directorate of Animal Wealth Research, General Commission of Agricultural
Scientific Research to measure the testicular dimensions, TDs (Length, TL;
width, TW; Circumference, TC)
; the relationship between these parameters
and to use them as an indicator to determine the puberty age in Shami camel
males. Twenty five camel raised in the station were equally divided, according
to their age, into five groups: G1, almost one year,G2, G3, G4, and G5 were 2,
3, 4 and 5 years old, respectively.
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..
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.
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