Year: 2013 | Month: December | Volume 3 | Issue 2
Effects of Breed and Prostaglandin Administration on Reproductive Performance and Profitability of Egyptian Ewes
Abstract: <div>The object of this study was to investigate the influence of breeds, equine chorionic gonadotropin (eCG) and prostaglandin F2alpha (PGF2α) administration on reproductive performance in Egyptian ewes in relation to</div><div>the economic efficiency of these hormonal treatments. For the estrus cycle control, the ewes received on Day 0 an intravaginal implant with 40 mg of Flugestone acetate. On 12th day the intravaginal implants were removed and</div><div>animals were divided into other two groups: Group 1) 36 ewes received only 400 IU eCG at the time of removal of the sponges (Ossami, n = 15; Rahmani, n= 12; Crossbred, n = 9). Group 2) 32 ewes received 400 IU eCG plus 0.5 ml PGF2á at the time of removal of the sponges (Ossami, n = 10; Rahmani, n= 12; Crossbred, n = 10). Estrus response, onset of estrus, pregnancy rate, lambing rate, litter size and multiple births were recorded.</div>
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