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Abstract

The primary objective was to determine if low doses of PGF2α (dinoprost) given intramuscularly (im) concurrent with timed artificial insemination (TAI) would improve conception rates in dairy cattle. A secondary objective was to determine if body condition score (BCS) and parity would influence...

Author(s)
Ambrose, D. J.; Mohanathas Gobikrushanth; Zuidhof, S.; Kastelic, J. P.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2015, 83, 4, pp 529-534
Abstract

From 1994 to 2003, a total of 526 bitches of 99 different breeds were artificially inseminated in 685 estrus cycles with domestic (n=353) or imported (n=332) frozen-thawed semen from 368 males. The overall whelping rate was 73.1% and mean (±S.E.M.) litter size 5.7±0.1 pups. The whelping rate was...

Author(s)
Thomassen, R.; Sanson, G.; Krogenæs, A.; Fougner, J. A.; Berg, K. A.; Farstad, W.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2006, 66, 6/7, pp 1645-1650
Abstract

Author(s)
Kastelic, J. P.
Publisher
John Wiley & Sons, Chichester, UK
Citation
Bovine Reproduction, 2015, pp 26-29
Abstract

Mammalian sperm are exposed to a natural hypoosmotic environment during male-to-female reproductive tract transition; although this activates sperm motility in vivo, excessive swelling can harm sperm structure and function. Aquaporins (AQPs) is a family of membrane-channel proteins implicated in...

Author(s)
Kasimanickam, R. K.; Kasimanickam, V. R.; Arangasamy, A.; Kastelic, J. P.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 89, pp 162-168
Abstract

Although captive populations of endangered species such as the Mexican gray wolf (Canis lupus baileyi) can benefit from artificial insemination to accomplish genetic exchange, reliable techniques for timing insemination are lacking. We used the generic gray wolf (C. lupus) to test the efficacy of a ...

Author(s)
Asa, C. S.; Bauman, K.; Callahan, P.; Bauman, J.; Volkmann, D. H.; Jöchle, W.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2006, 66, 6/7, pp 1778-1782
Abstract

The aim of this study was to investigate the effects of catalase and pre-freezing equilibration during ram sperm cryopreservation on motility and membrane and acrosomal integrity of frozen-thawed semen, as well as conception rate following laparoscopic time dinsemination. Semen was collected from...

Author(s)
Câmara, D. R.; Pinto, L. C.; Pinto, M. M. C. M.; Kastelic, J. P.; Nunes, J. F.; Barbosa, J. M. P.; Guerra, M. M. P.
Publisher
Colégio Brasileiro de Reprodução Animal, Belo Horizonte, Brazil
Citation
Animal Reproduction (Belo Horizonte), 2016, 13, 1, pp 21-27
Abstract

In the present study, polymorphonuclear neutrophils (PMN) were enumerated to evaluate acute uterine inflammation after artificial insemination in the bitch. It was concluded that the canine seminal plasma possessed an immunomodulating action. However, the most commonly used extender for freezing...

Author(s)
Ribeiro, A. P. C.; Vicente, W. R. R.; Apparício, M.; Gadelha, C. R. F.; Alves, A. E.; Covizzi, G. J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2006, 66, 6/7, pp 1462-1646
Abstract

Three experiments comparing four estrous synchronization protocols were conducted to determine estrous expression rate and artificial insemination pregnancy rate (AI-PR) in heifers with a range (1-5) of reproductive tract scores (RTSs). At enrollment (Day 0), 1783 Angus cross beef heifers from six...

Author(s)
Kasimanickam, R. K.; Whittier, W. D.; Hall, J. B.; Kastelic, J. P.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2016, 86, 3, pp 831-838
Abstract

Global demand for animal proteins is increasing, necessitating increased efficiency of global food production. Improving reproductive efficiency of beef cattle, especially bull fertility, is particularly critical, as one bull can breed thousands of females (by artificial insemination). Identifying...

Author(s)
Thundathil, J. C.; Dance, A. L.; Kastelic, J. P.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2016, 86, 1, pp 397-405
Abstract

Objectives were to determine associations between percentage pregnancy loss (PPL) in dairy cattle and: (i) pregnancy diagnosis by ultrasonography; (ii) pregnancy diagnosis by serum pregnancy-specific protein B (PSPB) concentrations, with or without serum progesterone concentrations; and (iii)...

Author(s)
Gábor, G.; Kastelic, J. P.; Abonyi-Tóth, Z.; Gábor, P.; Endrődi, T.; Balogh, O. G.
Publisher
Wiley-Blackwell, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2016, 51, 4, pp 467-473

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