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Animal Science Database

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Abstract

An experiment was conducted to investigate fertility rate in ewes inseminated with either fresh undiluted or frozen-thawed ram semen, without the use of vasectomised rams, at the 1st synchronised oestrus after a single intramuscular injection of 16 mg PGF2 alpha . The effect of 2 injections of PGF2 ...

Author(s)
Fukui, Y.; Roberts, E. M.
Citation
Australia Journal of Agricultural Research, 1977, 28, 5, pp 891-897
Abstract

Author(s)
Fairnie, I. J.; Cumming, I. A.; Martin, E. R.
Citation
Proceedings of the Australian Society of Animal Production, 1976, 11, pp 133-136
Abstract

In 10 field or laboratory experiments, Merino ewes in the luteal phase of the oestrous cycle were treated with 1 or 2 doses of 125 mu g cloprostenol (PGF2 alpha analogue). 66% of ewes were detected in behavioural oestrus within 64 h of the completion of treatment, and 95% ovulated in synchrony. The ...

Author(s)
Fairnie, I. J.; Wales, R. G.
Citation
Proceedings of the Australian Society of Animal Production, 1980, 13, pp 317-320
Abstract

The effects on fertility of single or double injections of 125 mu g PG were studied in a flock of 2000 Merino ewes. Over the 6-day insemination programme, 54 and 56% of single- and double-treatment ewes were marked by vasectomised rams at AI. Ovulation rates were 1.04 for untreated, control ewes,...

Author(s)
Fairnie, I. J.; Cumming, I. A.; Martin, E. R.
Citation
Proceedings of the Australian Society of Animal Production, 1976, 11, pp 133-136
Abstract

180 ewes were injected with the PG analogue cloprostenol (2 doses of 100 mu g, 11 days apart) or were treated with an intravaginal sponge containing 30 mg of the progestogen SC 9880; the sheep were inseminated 56 h after the end of treatment. For the 2 groups resp., the percentage that had ovulated ...

Author(s)
Boland, M. P.; Gordon, I.; Kelleher, D. L.
Publisher
Dublin., Irish Republic
Citation
Irish Republic, University College, Dublin: Faculty of General Agriculture. Research report 1976-77., 1979, pp 80
Abstract

Dahmen, J.J.; Hulet, C.V.; Price, D.A.; Everson, D.O. Effects of drylot and pasture management on ovulation rate in sheep: 204-205.Dave, B.K.; Graves, C.N. Enzymes of follicular fluid and effect on sperm: 205.Douglas, R.H.; Ginther, O.J. Effect of PGF2 alpha on estrous cycle and pregnancy in mares: ...

Citation
Journal of Animal Science, 1974, 39, pp 135-139

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