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Abstract

Objective: To describe reproductive performance of lactating dairy cows after fixed-time artificial insemination (FTAI) with ovulation synchronisation and re-synchrony in Australian dairy herds, and to compare reproductive outcomes with those of conventional mating programs. Methods: The study was...

Author(s)
Izzo, M. M.; Humphris, M.; Pryor, L.; Perry, A.; Morton, J. M.
Publisher
Wiley, Melbourne, Australia
Citation
Australian Veterinary Journal, 2018, 96, 4, pp 111-119
Abstract

Artificial insemination (AI) technology use in poultry production has enabled the rapid dissemination of genetic material from a small number of superior males to a high number of females. Excellent fertility in poultry can be obtained by AI compared to natural mating. Successful application of...

Author(s)
Mohan, J.; Sharma, S. K.; Kolluri, G.; Dhama, K.
Publisher
Cambridge University Press, Cambridge, UK
Citation
World's Poultry Science Journal, 2018, 74, 3, pp 475-488
Abstract

Increasing use of fixed-time artificial insemination (FTAI) in beef cattle production has presented an opportunity for the use of fresh or chilled semen as an alternative to standard cryopreserved semen. The objective of this study was to examine in vitro sperm function and pregnancy rate of...

Author(s)
Satake, N.; Edwards, S. A. A.; Tutt, D.; McGowan, M. R.; Boe-Hansen, G. B.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2018, 53, 2, pp 414-422
Abstract

Reproductive wastage is a key issue for sheep producers, both regionally and globally. The reproductive output of farm animals can be influenced by physiological and environmental factors. Rapid and reliable quantification of physiological stress can provide a useful tool for designing and testing...

Author(s)
Narayan, E.; Sawyer, G.; Parisella, S.
Publisher
Public Library of Sciences (PLoS), San Francisco, USA
Citation
PLoS ONE, 2018, 13, 1, pp e0191961
Abstract

This study evaluated the effect of equine chorionic gonadotropin (eCG) on reproductive performance, when incorporated into the first Ovsynch + P4 synchronization following planned start mating (PSM) in pasture-based lactating dairy cows. Two synchrony programs were compared in a randomized...

Author(s)
Rowe, S. M.; Pryor, L.; Tranter, W. P.; Hosie, J.; Cavalieri, J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 125, pp 30-36
Abstract

Female reproductive technologies such as multiple ovulation and embryo transfer (MOET) and juvenile in vitro fertilization and embryo transfer (JIVET) have been shown to accelerate genetic gain by increasing selection intensity and decreasing generation interval. Genomic selection (GS) increases...

Author(s)
Granleese, T.; Clark, S. A.; Kinghorn, B. P.; Werf, J. H. J. van der
Publisher
Wiley, Berlin, Germany
Citation
Journal of Animal Breeding and Genetics, 2019, 136, 2, pp 79-90
Abstract

In 1990, two selection lines of Merino sheep were established for low and high behavioural reactivity (calm and nervous temperament) at the University of Western Australia. Breeding records consistently showed that calm ewes weaned 10% to 19% more lambs than the nervous ewes. We hypothesise that...

Author(s)
Lier, E. van; Hart, K. W.; Viñoles, C.; Paganoni, B.; Blache, D.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2017, 11, 7, pp 1196-1202
Abstract

Numerous treatments and protocols have been used to control the reproductive cycle in cattle, with varying effectiveness and many involving the administration of steroid hormones. Steroid hormones, such as estradiol, are perceived as having a negative impact on consumer health. This internationally ...

Author(s)
Yapura, M. J.; Zwiefelhofer, E. M.; Pierson, R. A.; Adams, G. P.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 112, pp 18-25
Abstract

Components of assisted reproduction technologies (ART), such as sperm cryopreservation, artificial insemination, superovulation and pouch young surrogacy, have been developed for a range of Australian and American marsupials. However, methods to effectively control ovarian function, arguably the...

Author(s)
Witt, R. R.; Rodger, J. C.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 109, pp 58-69
Abstract

The financial impact of early embryonic loss in Australia may be as high as $137 million AUD/year. Embryos may be lost due to environmental conditions, or maternal factors such as nutrition or progesterone (P4) profiles. However, studies on the supplementation of P4 during early pregnancy have...

Author(s)
Rickard, J. P.; Ryan, G.; Hall, E.; Graaf, S. P. de; Hermes, R.
Publisher
Public Library of Sciences (PLoS), San Francisco, USA
Citation
PLoS ONE, 2017, 12, 8, pp e0183659

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