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Abstract

The objectives of this cross-sectional study were to characterize reproductive management practices on Canadian dairy farms and describe differences based on regional and demographic factors. A questionnaire was offered to all licensed Canadian dairy producers and included 189 questions regarding...

Author(s)
Schyndel, S. J. van; Bauman, C. A.; Pascottini, O. B.; Renaud, D. L.; Dubuc, J.; Kelton, D. F.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 2, pp 1822-1831
Abstract

The objectives of this study were to (1) evaluate factors associated with variation in circulating anti-Müllerian hormone (AMH) concentrations, (2) establish an optimum AMH threshold predictive of pregnancy to first artificial insemination (P/AI), (3) examine the relationship between AMH and...

Author(s)
Gobikrushanth, M.; Purfield, D. C.; Colazo, M. G.; Butler, S. T.; Wang, Z.; Ambrose, D. J.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 8, pp 7563-7574
Abstract

Greater metabolic demands in high-producing dairy cows are believed to be a cause of sub-fertility in these animals. Previously, supplementation with vitamin B complex molecules has shown benefits in improving milk production, health, and reproductive efficiency of dairy cows. The primary aim of...

Author(s)
Kaur, M.; Hartling, I.; Burnett, T. A.; Polsky, L. B.; Donnan, C. R.; Leclerc, H.; Veira, D.; Cerri, R. L. A.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 2, pp 1642-1657
Abstract

The objectives of this study were to describe the characteristics and motivations of producers who had implemented automated activity-monitoring (AAM) systems and to compare herd reproductive performance before and after the implementation of an AAM system and between herds with AAM and herds...

Author(s)
Neves, R. C.; LeBlanc, S. J.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2015, 98, 4, pp 2801-2811
Abstract

Pregnancy per AI (P/AI) following the use of 1 of 2 timed AI (TAI) protocols and 2 different intervals between TAI and resynchronization were compared in heifers that were inseminated with either conventional or sex-sorted semen. Holstein heifers (n=317; 527 inseminations) were submitted to a 5-d...

Author(s)
Macmillan, K.; Loree, K.; Mapletoft, R. J.; Colazo, M. G.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 5, pp 4134-4138
AbstractFull Text

It is human nature to do things you are good at, especially if they are working. Commercial pork producers are human, and at least in the realm of reproductive management that approach has been common for a long time. This paper presents a thought process of adoption of technology, specifically as...

Author(s)
Safranski, T.
Publisher
London Swine Conference, London, Canada
Citation
Proceedings of the London Swine Conference: A platform for success, April 5th and 6th, 2016, London, Ontario, Canada, 2016, pp 47-49
Abstract

The objective was to evaluate in-line milk progesterone (mP4) data to determine dynamics of pre- and post-insemination mP4 profiles and their associations with parity and outcomes of artificial insemination (AI) in Holstein cows. Milk progesterone (ng/mL) was quantified at pre-determined time...

Author(s)
Bruinjé, T. C.; Gobikrushanth, M.; Colazo, M. G.; Ambrose, D. J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 102, pp 147-153
Abstract

Artificial insemination is extensively performed in pig farms in Europe, the United States and Canada. Antibiotics are typically added to the inseminating dose to limit bacterial growth during liquid phase storage at 16°C, as bacterial contamination is unavoidable. The World Organization for Animal ...

Author(s)
Barone, F.; Ventrella, D.; Zannoni, A.; Forni, M.; Bacci, M. L.
Publisher
Wiley-Blackwell, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2016, 51, 4, pp 604-610
Abstract

The objective of this study was to assess the efficacy of cephapirin intrauterine treatment preceding a timed artificial insemination protocol in lactating dairy cows with purulent vaginal discharges (PVDs). Holstein dairy cows (n=1247) from 18 herds were enrolled in a controlled randomized...

Author(s)
Tison, N.; Bouchard, E.; DesCôteaux, L.; Lefebvre, R. C.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 89, pp 305-317
AbstractFull Text

The widespread use of artificial insemination in the pig industry has provided breeders with access to genetic material from superior boars from around the world. Selection of parent stock is based on estimated breeding values (EBVs), which are regularly computed in all countries performing genetic ...

Author(s)
Krüger, D. A.; Marle-Koster, E. van; Theron, H. E.
Publisher
South African Society of Animal Science, Hatfield, South Africa
Citation
South African Journal of Animal Science, 2017, 47, 5, pp 688-696

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