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Hormonal control of fertility in sheep. 2. Doses of FGA and PMSG and the ram:ewe ratio in Altamura sheep



Hormonal control of fertility in sheep. 2. Doses of FGA and PMSG and the ram:ewe ratio in Altamura sheep



Zootecnica e Nutrizione Animale 6(3): 227-240



In a trial involving 360 ewes aged 31/2 yr, 2 FGA doses (30 and 40 mg), 3 PMSG doses (400, 500 and 600 IU), 3 ram:ewe ratios (1:6, 8 and 10) and 4 ewe body weight classes (<35, 35-38, 39-42 and >42 kg) were studied. The effects on CR, lambing rate and productivity are tabulated. The effect of FGA dose was not significant, although the lower dose tended to give better results. Lambing rate was significantly higher for 600 IU PMSG than for 400 and 500 IU.

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Accession: 001085511

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