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Effect of GnRH on repeat breeder buffalo-cows and delayed pubertal buffalo-heifers and its effect with PGF2oc on reproductive effeciency of postpartum buffalo-cows [electronic resource].

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Metwelly, K.K

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Language: English Summary language: Arabic Description: p.362-373Other title:

تأثير الهرمون المحرر للحاثة المنسلية على ظاهرة الشياع المتكرر فى الجاموس والبلوغ المتأخر فى عجلات الجاموس ومصحوبا بالبروستاجلاندين ف2 ألف على كفاءة الجاموس التناسيلة بعد الولادة [Added title page title]

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Assiut veterinary medical journal, 2004 v. 50 (102) [electronic resource].

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In: Assiut Veterinary Medical Journal 2004.v.50(102)Summary: Three experiments were conducted to study fertility of repeat breeder buffalo cows, delayed puberty in buffalo heifers and reproductive efficiency of postpartum buffalo cows after GnRH (at day I I post service), GnRH and GnRH- PGF2u - GnRH (GPG) administration in three separate experiments respectively. In experiment I, 34 repeat breeder buffalo cows were injected (im) with 0.02 mg Buserelin (5 ml Receptal) at dayII post service (treated group). Other 12 repeat breeder buffalo cows were received (im) 5 ml saline and used as control group. In experiment 2, 30 delayed pubertal buffalo heifers (their ages abovc 2 years) were received (im) 0.02 mg Buserelin (treated group) however, I I similar buffalo-heifers were injected (im) with 5 ml saline (control group). While in experiment 3, 36 of postpartum buffalo cows were received (im) 1st dose of GnRH (5ml Receptal) then injected (im) with PGF20c at day 7 after the Ist dose of GnRH. At 40 hours post PGF20c injection, animals received the second dose of GnRH (GPG treated group). Another 14 postpartum buffalo cows received saline and used as control. Cows in both GPG and control groups were naturally mated 24hours after 2nd dose of GnRH or saline injections.

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Three experiments were conducted to study fertility of repeat breeder buffalo cows, delayed puberty in buffalo heifers and reproductive efficiency of postpartum buffalo cows after GnRH (at day I I post service), GnRH and GnRH- PGF2u - GnRH (GPG) administration in three separate experiments respectively. In experiment I, 34 repeat breeder buffalo cows were injected (im) with 0.02 mg Buserelin (5 ml Receptal) at dayII post service (treated group). Other 12 repeat breeder buffalo cows were received (im) 5 ml saline and used as control group. In experiment 2, 30 delayed pubertal buffalo heifers (their ages abovc 2 years) were received (im) 0.02 mg Buserelin (treated group) however, I I similar buffalo-heifers were injected (im) with 5 ml saline (control group). While in experiment 3, 36 of postpartum buffalo cows were received (im) 1st dose of GnRH (5ml Receptal) then injected (im) with PGF20c at day 7 after the Ist dose of GnRH. At 40 hours post PGF20c injection, animals received the second dose of GnRH (GPG treated group). Another 14 postpartum buffalo cows received saline and used as control. Cows in both GPG and control groups were naturally mated 24hours after 2nd dose of GnRH or saline injections.

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