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Register a new userA Comparative Study between Intravaginal Sponges and Prostaglandin Injection and their effect on Lambing rate and Birth rate in Awassi sheep.
دراسة مقارنة بين استخدام الإسفنجات المهبلية وحقن البروستاغلاندين وتأثيرهما في نسبة الولادات ومعدل المواليد لدى الأغنام العواس
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Hama University ورقة بحثية
Publication date
2020
fields
Veterinary Medicine
and research's language is
العربية
Authors
د.محمد الرز( باحث )
Created by
محمد الرز
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هدفت هذه الدراسة للمقارنة بين تأثير استخدام الإسفنجات المهبلية المشبعة بميدروكسي بروجستيرون أسيتات (MAP)والحقن العضلي لهرمون البروستاغلاندين في الموسم التناسلي، على نسبة الولادات ومعدل المواليد لدى النعاج العواس. استخدمت في هذه الدراسة 30 نعجة تم تقسيمها إلى مجموعتين متساويتين (G1) و(G2)، وضعت الإسفنجات المهبلية المشبعة بـ 60 ملغ من ميدروكسي بروجستيرون أسيتات (MAP) لمدة 14 يوماً وحقنت في وقت سحب الإسفنجات بـ 500 وحدة دولية من الهرمون المشيمائي الخيلي (eCG) لدى نعاج المجموعة الأولى (G1)، في الوقت الذي حقنت فيه نعاج المجموعة الثانية (G2) بـ 125 ميكروغرام من هرمون البروستاغلاندين (PGF2α) بالعضل بجرعتين وبفاصل 9 أيام، لقحت النعاج بكباش ذات خصوبة عالية بمعدل (كبش/5 نعاج). أظهرت النتائج وجود فروق معنوية بين المجموعتين في نسبة الولادات (93.33% مقابل 73.33%)، وتفوقت نعاج المجموعة (G1) على نعاج المجموعة (G2) في نسبة الولادات التوأمية ( %42.86مقابل 18.18%)، ومعدل المواليد (1.43 مقابل 1.18) بفروق معنوية واضحة .(P<0.05) نستنتج من الدراسة أنَّ معالجة النعاج باستخدام الإسفنجات المهبلیة مع حقن هرمون eCG كانت أفضل من طريقة حقن هرمون البروستاغلاندين في رفع نسبة الولادات ومعدل المواليد في الأغنام العواس ضمن الظروف المحلية السورية.
The objective of this study was to compare the effect of using intravaginal sponges with intramuscular (IM) injection of prostaglandin hormone within the reproductive season and their effect on Lambing rate and birth rate in Awassi ewes. Thirty ewes were equally divided into two groups (G1 and G2). Intravaginal sponges impregnated with 60 mg of Medroxy Progesterone Acetate (MAP) were inserted into the ewes of the first group for 14 days, and were injected at the time of the withdrawal of sponges with 500 IU of equine Chorionic Gonadotrophin (eCG) at the first group ewes (G1). The ewes in second group (G2) were injected with double dose of 125 μg of prostaglandin (PGF2α) intramuscularly (IM) at 9 days apart. The ewes were naturally mated with fertile rams (ram / 5 ewes). The results showed that there were significant differences between groups (G1 and G2) in the Lambing rate (93.33% vs. 73.33%). The ewes of group (G1) outperformed the ewes of group (G2) in the percentage of twin births (42.86% vs. 18.18%), and the birth rate (1.43 vs. 1.18) with significant differences (P<0.05). We conclude from the study that treating ewes by using intravaginal sponges with eCG injection was better than the method of prostaglandin injection in raising the Lambing rate and birth rate in Syrian Awassi ewes, within the local Syrian conditions
References used
El-Sherry, T. M., Derar, D. R., Hayder, M., Hamdon, H., Saifelnasr, E. (2012). Effect Of Progesterone And Prostaglandin Analogue-Based Synchronization Programs On The Follicular Dynamics And Conception Rate At Two Different Breeding Seasons In Subtropical Ewes. Assiut Vet. Med. J., 58: 135
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The objective of this study was to compare between two methods of estrus synchronization (progesterone-impregnated intravaginal sponges and intramuscular (IM) injection of prostaglandin hormone) within the reproductive season and their effect on some
reproductive parameters in Awassi ewes. Thirty ewes were equally divided into two groups (G1 and G2). Intravaginal sponges impregnated with 60 mg of Medroxy Acetate Progesterone (MAP) were inserted into the ewes of the first group for 14 d, and were injected at the time of the withdrawal of sponges with 500 IU of equine Chorionic Gonadotrophin (eCG) at the first group ewes (G1). The animals in second group (G2) were injected with double dose of 125μg of prostaglandin (PGF2α) intramuscularly (IM) at 9 days apart. The ewes were naturally mated with fertile rams (ram / 5 ewes). The results showed that there were no significant differences between groups (G1 and G2) in the estrus response (100% and 86.67%, respectively), while there were significant differences in the average time to onset of estrus (38.8 ± 4.45 h and 53.07 ± 4.13 h) and the average duration of estrus (33.20 ± 3.09 h and 28.61 ± 3.59 h, respectively). Also, the pregnancy rate was significant difference (P<0.05) in group G1 compared to group G2 (93.33% vs. 73.33%). we conclude from the study that the estrus synchronization using intravaginal sponges is an effective method to achieve good reproductive performance ewes and get a high estrus rate and high pregnancy rate, compared to the injection of the hormone prostaglandin in Awassi ewes, within the local Syrian conditions.
Three hundreds- Awassi yearlings, ١٨-١٩ months old, ٤٠ ± ١ kg weight,
٢,٥-٣ months post first lambing, were used to study the efficiency of hormonal
treatment in synchronizing estrus and increasing lambing rate with a program
of having two lambs p
er year. Ewes were randomly and equally divided into
three groups.
This study was conducted in Ber Al-Ajam village, on a private farm, with a
group of Awassi sheep (76 ewes) in 2004-2005. A group of 57 lambs were
selected out of single born lambs and divided into two groups according to sex.
Each group was divide
d randomly into sub groups: control and experimental.
At the beginning of the experiment, at three weeks age, there were no
significant differences between the groups of lambs (p > 0.05).
This study aimed to provide an assessment of some anatomical
characteristics of the formal comparison to the kidneys of dogs
and sheep by studying of macroscopic anatomical differences and
morphometric measurement between the studied kidneys . (20
)
Kidneys were taken randomly during the slaughter of ten heads of
sheep in the local slaughterhouses, regardless of gender and age ,
Animals were clinically free of diseases and (20) kidneys were
taken from ten local stray dogs and regardless of gender and age ,
Animals were clinically free of diseases . the study showed the
presence of Morvomitrih differences in kidney (length – width -
thickness - weight) and some anatomical variations (renal pelvis -
renal Columns )between the kidneys of sheep and dogs. The study
pointed out there are many similarities between the kidneys of
sheep and dogs whereas revealed the length of the dogs kidneys.
Esthetic orthodontic archwires (fiber reinforced composite archwires) are
considered as the latest addition to orthodontic's world, and the load deflection rate is thought to be the
most important mechanical property of archwires which has strong e
ffect clinically, and this property is
affected by the cross section diameter and the material's type, for these reasons this study aims to
investigate the effect of the material's type and the cross section diameter of orthodontic archwires on the
load deflection rate of fiber reinforced composite(FRC) archwires with a diameter of 0.014 inch and
0.016 inch which are suitable for the leveling and alignment stage, and to compare these new materials
with Nickel titanium(NiTi) archwires .
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