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Animal Science Database

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Abstract

Manipulation of the reproductive tract can cause inflammatory processes in the endometrium and release of cytokines and prostaglandins. It has been shown that PGF has direct negative effects on embryonic survival and development. Treatment with nonsteroidal antiinflammatory drugs (e.g., ibuprofen ...

Author(s)
Heuwieser, W.; Iwersen, M.; Goetze, L.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2011, 94, 1, pp 146-151
Abstract

Pregnancy per insemination is a major determinant of reproductive efficiency in cattle and is affected by concentrations of progesterone (P4) during early pregnancy. The relationship between pregnancy per artificial insemination (P/AI) and early luteal concentrations of P4, and repeatability of...

Author(s)
Parr, M. H.; Mullen, M. P.; Crowe, M. A.; Roche, J. F.; Lonergan, P.; Evans, A. C. O.; Diskin, M. G.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2012, 95, 5, pp 2390-2396
Abstract

The objective was to identify herd-level indicators expressed as a proportion of sampled animals with increased nonesterified fatty acids (NEFA) or β-hydroxybutyric acid (BHBA), or decreased calcium in wk -1 and wk +1 relative to calving that were associated with herd-level incidence of retained...

Author(s)
Chapinal, N.; LeBlanc, S. J.; Carson, M. E.; Leslie, K. E.; Godden, S.; Capel, M.; Santos, J. E. P.; Overton, M. W.; Duffield, T. F.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2012, 95, 10, pp 5676-5682
Abstract

The objective was to compare reproductive performance with management programs based on an automated activity monitoring (AAM) system or a synchronized breeding program under field conditions. In total, 1,429 Holstein cows from 3 commercial herds in Ontario, Canada, were enrolled over 1 yr in a...

Author(s)
Neves, R. C.; Leslie, K. E.; Walton, J. S.; Leblanc, S. J.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2012, 95, 10, pp 5683-5693
Abstract

The somatotropic axis is a key metabolic pathway during transition from late pregnancy to early lactation in dairy cows. The first objective of this study was to determine the feasibility of selecting cows with persistent differences in total insulin-like growth factor 1 (IGF-1) concentration by...

Author(s)
Piechotta, M.; Kedves, K.; Araujo, M. G.; Hoeflich, A.; Metzger, F.; Heppelmann, M.; Muscher-Banse, A.; Wrenzycki, C.; Pfarrer, C.; Schuberth, H. J.; Hoedemaker, M.; Bollwein, H.; Kaske, M.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2013, 96, 6, pp 3737-3749
Abstract

Feet and leg problems have a major effect on the well-being and lifespan of the dairy cow and thus are economically important to the dairy farmer. Apart from approaches using genetic selection for classical traits from conformation scoring, attempts for genetic improvement can be based either on...

Author(s)
Swalve, H. H.; Floren, C.; Wensch-Dorendorf, M.; Schöpke, K.; Pijl, R.; Wimmers, K.; Brenig, B.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2014, 97, 1, pp 507-519
Abstract

Sixty female Holstein calves [body weight (BW)=39.5±3.76 kg] were fed a ground starter concentrate [19% crude protein, 19% neutral detergent fiber (NDF)] during the preweaning period. Furthermore, oats hay (68% NDF) was supplemented only during the postweaning period (CON) or during both pre- and...

Author(s)
Castells, L.; Bach, A.; Terré, M.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2015, 98, 7, pp 4748-4753
Abstract

The objective of this study was to determine the association of lung consolidation at weaning with later reproductive performance and survival. Ultrasonography of the lungs was performed at 60 d of life in recently weaned Holstein heifer calves from a single farm in New York State. Thoracic...

Author(s)
Teixeira, A. G. V.; McArt, J. A. A.; Bicalho, R. C.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 4, pp 2985-2991
Abstract

This study aimed to investigate the association between plasma adipokine concentrations and metabolic and reproductive parameters in Holstein dairy cows fed diets with different energy levels during the peripartum period. The experiment started 1 mo before first calving and was maintained for 2...

Author(s)
Mellouk, N.; Rame, C.; Touzé, J. L.; Briant, E.; Ma, L.; Guillaume, D.; Lomet, D.; Caraty, A.; Ntallaris, T.; Humblot, P.; Dupont, J.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 10, pp 8518-8533
Abstract

The objective of this study was to determine the association between ambient temperature and humidity, vaginal temperature, and automated activity monitoring in synchronized cows. Lactating Holstein cows (n=641; 41.5±9.4 kg of milk/d) were fitted with leg-mounted pedometers, resulting in 843...

Author(s)
Polsky, L. B.; Madureira, A. M. L.; Drago Filho, E. L.; Soriano, S.; Sica, A. F.; Vasconcelos, J. L. M.; Cerri, R. L. A.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 10, pp 8590-8601

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