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Abstract

One aim of this study was to compare the reproductive performance of cows and heifers when resynchronizing returns to oestrus for a second insemination by treating with an intravaginal progesterone-releasing device (IVD) for 7 or 8 d when estradiol benzoate (EB) was administered at the start of...

Author(s)
Cavalieri, J.; Hepworth, G.; Smart, V. M.; Ryan, M.; Macmillan, K. L.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2007, 67, 4, pp 824-834
Abstract

Semen from 2 bulls was microencapsulated in an alginate poly-L-lysine matrix. Oestrus was synchronized in 417 primiparous Friesian and Jersey heifers with a CIDR-B intravaginal device and the heifers were inseminated with encapsulated semen or with diluted liquid semen (control) during pro-oestrus...

Author(s)
Vishwanath, R.; Nebel, R. L.; McMillian, W. H.; Pitt, C. J.; Macmillan, K. L.
Citation
Theriogenology, 1997, 48, 3, pp 369-376