![](/images/graphics-bg.png)
Effect of breed, type of birth and weaning system on development of testis and body weight in growing chios and rahmani ram lambs
Other Title(s)
تأثير السلالة و نوع الولادة و نظم الفطام على تطور الخصية و وزن الجسم في ذكور الحملان الكيوس و الرحمان النامية
Joint Authors
Ibrahim, Muhtram Abd Allah Muhammad
Abbas, Sayf al-Yazal Fathi
Source
Assiut Veterinary Medical Journal
Issue
Vol. 54, Issue 119 (31 Oct. 2008), pp.424-433, 10 p.
Publisher
Assiut University Faculty of Veterinary Medicine
Publication Date
2008-10-31
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Topics
Abstract AR
استخدم في هذه التجربة 22 من ذكور الحملان (9 كيوس و 13 رحماني) لدراسة تأثير السلالة و نوع الولادة و نظم الفطام على تطور الخصية و وزن الجسم.
قسمت الحملان عند الميلاد عشوائيا إلى 3 مجموعات 1 – فطام مبكر (عند عمر 8 أسابيع)، 2 – فطام عادي (عند عمر 12 أسبوع)، 3 – فطام متأخر (عند عمر 16 أسبوع) و أظهرت النتائج أنه لا يوجد فروق معنوية بين السلالتين على الوزن عند الميلاد و لكن عند عمر 90، 180، 360 يوم كانت الحملان الكيوس أثقل وزنا من الحملان الرحماني.
الحملان الكيوس مبكرة البلوغ الجنسي و أثقل وزنا عن الحملان الرحماني.
الحملان التي فطمت مبكرا عند عمر أسابيع وصلت إلى البلوغ الجنسي في عمر أقل من الحملان المفطومة عند عمر 12 أسبوع أو عند عمر 16 أسبوع.
كانت هناك فروق معنوية في مقاييس الخصية بين السلالتين.
نوع الولادة لم يكن له تأثير معنوي على مقاييس الخصية أو وزن الجسم.
وجد أن هناك علاقة ارتباط موجبة ما بين مقاييس الخصية و وزن الجسم.
Abstract EN
A total number of twenty two male lambs, nine of Chios and thirteen of Rahmani ram lambs, were used to investigate the effects of body weight of lambs, type of birth, weight at birth, weaning system and age at puberty on the development of the six testicular parameters from weaning 8-16 weeks of age in both Chios and Rahmani ram lambs lambs were assigned randomly at birth to three groups : 1) Lambs were weaned at 8 weeks of age (early weaning) ; or 2) Lambs were weaned at 12 weeks of age (normal weaning) ; or 3) Lambs were weaned at 16 weeks of age (late weaning).
Results revealed that, no significant differences were observed between breed on birth body weight of lambs.
However, at 90,180 and 360 days of age, Chios lambs were significantly (P < O.01) heavier than Rahmani lambs.
Weaning weight was reduced at 90 days, but there was a quick recovery to similar weight by yearling age.
Age at puberty in ram lambs was significantly affected (P < 0.01) by weaning system.
Puberty occurred earlier in early weaning (8 weeks) (279 d) and normal weaning (12 weeks) (255 d) compared with late weaning (16 weeks) (313 d).
Breed was significantly differences of testicular measurements.
Types of birth were not significantly affected the development of testicular parameters.
Increasing of testicular parameters were relatively similar to the development of body weight.
In general, sexual development of ram lamb appears to be more closely associated with body growth.
Measurement of testis were positively correlated with body weight (r = 0.60-0.85, PO.01) and each other testicular parameters (r = 0.50-0.69, P < O.05, P < O.01).
American Psychological Association (APA)
Abbas, Sayf al-Yazal Fathi& Ibrahim, Muhtram Abd Allah Muhammad. 2008. Effect of breed, type of birth and weaning system on development of testis and body weight in growing chios and rahmani ram lambs. Assiut Veterinary Medical Journal،Vol. 54, no. 119, pp.424-433.
https://search.emarefa.net/detail/BIM-35960
Modern Language Association (MLA)
Abbas, Sayf al-Yazal Fathi& Ibrahim, Muhtram Abd Allah Muhammad. Effect of breed, type of birth and weaning system on development of testis and body weight in growing chios and rahmani ram lambs. Assiut Veterinary Medical Journal Vol. 54, no. 119 (Oct. 2008), pp.424-433.
https://search.emarefa.net/detail/BIM-35960
American Medical Association (AMA)
Abbas, Sayf al-Yazal Fathi& Ibrahim, Muhtram Abd Allah Muhammad. Effect of breed, type of birth and weaning system on development of testis and body weight in growing chios and rahmani ram lambs. Assiut Veterinary Medical Journal. 2008. Vol. 54, no. 119, pp.424-433.
https://search.emarefa.net/detail/BIM-35960
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 431-433
Record ID
BIM-35960