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A Comparative Study between Intravaginal Sponges and Prostaglandin Injection and their effect on reproductive performance in Awassi sheep

دراسة مقارنة بين استخدام الإسفنجات المهبلية وحقن البروستاغلاندين وتأثيرهما في الأداء التناسلي لدى الأغنام العواس

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 Publication date 2020
  fields Veterinary Medicine
and research's language is العربية
 Created by محمد الرز




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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.


Artificial intelligence review:
Research summary
هدفت هذه الدراسة إلى مقارنة طريقتين لترقيت الشبق في النعاج العواس وتأثيرهما على الأداء التناسلي. استخدمت الدراسة 30 نعجة قسمت إلى مجموعتين: الأولى (G1) استخدمت الإسفنجات المهبلية المشبعة بميدروكسي بروجستيرون أسيتات (MAP) لمدة 14 يوماً، بينما حقنت المجموعة الثانية (G2) بهرمون البروستاغلاندين بجرعتين بفاصل 9 أيام. أظهرت النتائج أن نسبة ظهور الشبق كانت 100% في المجموعة الأولى و86.67% في المجموعة الثانية. كما كانت نسبة الحمل أعلى في المجموعة الأولى (93.33%) مقارنة بالمجموعة الثانية (73.33%). استنتجت الدراسة أن استخدام الإسفنجات المهبلية هو طريقة فعالة لتحقيق أداء تناسلي جيد في النعاج العواس ضمن الشروط المحلية السورية.
Critical review
دراسة نقدية: تعد هذه الدراسة قيمة في مجال تحسين الأداء التناسلي للنعاج العواس، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، حجم العينة المستخدم في الدراسة صغير نسبياً، مما قد يؤثر على تعميم النتائج. ثانياً، لم تتناول الدراسة تأثير العوامل البيئية والموسمية بشكل كافٍ، وهو ما يمكن أن يكون له تأثير كبير على النتائج. أخيراً، كان من الممكن أن تكون الدراسة أكثر شمولية إذا تضمنت مقارنة مع طرق أخرى لترقيت الشبق أو تضمنت تحليلات اقتصادية لتكلفة كل طريقة.
Questions related to the research
  1. ما هي الطريقتان المستخدمتان لترقيت الشبق في الدراسة؟

    الطريقة الأولى هي استخدام الإسفنجات المهبلية المشبعة بميدروكسي بروجستيرون أسيتات (MAP)، والطريقة الثانية هي حقن هرمون البروستاغلاندين بجرعتين بفاصل 9 أيام.

  2. ما هي نسبة ظهور الشبق في المجموعة الأولى (G1)؟

    نسبة ظهور الشبق في المجموعة الأولى (G1) كانت 100%.

  3. ما هي نسبة الحمل في المجموعة الثانية (G2)؟

    نسبة الحمل في المجموعة الثانية (G2) كانت 73.33%.

  4. ما هو الاستنتاج الرئيسي للدراسة؟

    الاستنتاج الرئيسي هو أن استخدام الإسفنجات المهبلية هو طريقة فعالة لتحقيق أداء تناسلي جيد في النعاج العواس مقارنة بحقن هرمون البروستاغلاندين.


References used
16. Ozturkler, Y., Colak, A, Baykal, A., and Guven, B., (2003). Combined effect of a prostaglandin analogue and a progestagen treatment for 5days on oestrus synchronization in Tushin ewes. Indian Veterinary Journal, 80 : 917-920.
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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
Data on ١٦٠١ records over five years were used to study the reproductive and productive performance of Awassi ewes kept at the animal husbandry station (Darnajookh) in Iraq. The overall means were ٨٠,٦٩±١,١٪, ١,٠٧٧±٠,٠٠٨, ٩٢,٨٢±٠,٨٣٪, ٠,٨٠٥±٠,٠١٤ , ١٨,٩٨±٠,٣٥ kg, ٥٣,٣٨±٠,٣٢ kg and ٢٢,٥١±٠,١٨ kg for fertility, litter size, pre-weaning survival rate, number of lambs weaned per ewe exposed to the rams, ewe productivity ( total weight of lambs weaned per ewe exposed to the rams), body weight of ewe at breeding and weaning weight of lambs, respectively.
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.
This study aims to shorten the orthodontic treatment period into,at least, half the length of time. It takes in order to reduce the complaints of patients of the length of orthodontic treatment through the induction of the secretion of prostagland in E2 topically by raising the inflammatory process via injection of vitally accepted materials which are used routinely in daily dental practice, Lidocaine 2% which leads to the increase of proportion of osteoclasts and the occurrence of bone absorption in the injected area ( the area of the tooth to be moved) .
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