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Abstract

The aim of this study was to document the effectiveness of the implementation of a cosynch protocol and fixed time artificial insemination in suckled beef cows kept under range conditions in Germany. In addition, the suitability of hCG administration as an alternative to the GnRH analog buserelin...

Author(s)
Schmitz, W.; Kramer, M.; Erhardt, G.; Gauly, M.; Driancourt, M. A.; Holtz, W.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Livestock Science, 2017, 206, pp 141-147
Abstract

The objective of this experiment was to assess the effects of eprinomectin, an extended-release injectable parasiticide, on fescue toxicosis and its impacts on beef heifer performance and reproduction. Fall-born Angus × Simmental heifers (age=246.3±22.4 d; 264.8±21.1 kg body weight [BW]) were...

Author(s)
Volk, M. J.; Kordas, J. M.; Stokes, R. S.; Ireland, F. A.; Shike, D. W.
Publisher
Oxford University Press, Oxford, UK
Citation
Translational Animal Science, 2019, 3, 1, pp 20-28
AbstractFull Text

The objective of the study was to determine whether fertility in cows can be improved by postpartal intrauterine ozone administration. The cows were divided into two groups - treatment (T) and control (C). The treatment group received 20 mL of ozonated foam into the uterus within 6 hours after...

Author(s)
Zobel, R.; Martinec, R.; Ivanović, D.; Rošić, N.; Stančić, Z.; Žerjavić, I.; Flajsig, B.; Plavec, H.; Smolec, O.
Publisher
Veterinarski Fakultet Sveučilišta u Zagrebu (Faculty of Veterinary Medicine, University of Zagreb), Zagreb, Croatia
Citation
Veterinarski Arhiv, 2014, 84, 1, pp 1-8
Abstract

Optical density image (ODI) analysis, based on the intensity of pixels in digital images, is commonly used in orthopedic medicine. This study was conducted to quantify endometrial and luteal changes in early pregnant and cyclic cows by ODI analysis. Twenty healthy primiparous Simmental cows on days ...

Author(s)
Cengİz, M.; Çolak, A.; Hayırlı, A.; Cannazİk, O.
Publisher
TÜBİTAK, Ankara, Turkey
Citation
Turkish Journal of Veterinary & Animal Sciences, 2017, 41, 1, pp 18-24
Abstract

The objective of the present research was to evaluate the effect of a calf's genetic group on the productive and reproductive efficiency of its Nellore dam. Fixed-time artificial insemination was applied to 800 cows using semen extracted from Nellore, Simmental and Angus Red bulls. Four hundred...

Author(s)
Rodrigues, W. B.; Wechsler, F. S.; Nogueira, E.
Publisher
Wiley-Blackwell, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2015, 50, 3, pp 431-436
AbstractFull Text

This study aimed to determine reproductive traits, such as gestation length (GL), service period (SP), calving interval (CI), number of insemination per pregnancy (NIPC), and first calving age (FCA) and to reveal the non-genetic parameters affecting these traits in Simmental cows raised at a...

Author(s)
Bolacalİ, M.; Öztürk, Y.
Publisher
Pakistan Agricultural Scientists Forum, Lahore, Pakistan
Citation
JAPS, Journal of Animal and Plant Sciences, 2017, 27, 5, pp 1420-1425
Abstract

The objectives of the current study were to investigate the influence of denaverine hydrochloride and carbetocin on softening and dilatation of the birth canal, the need for assistance during parturition, calf mortality, retention of fetal membranes, endometritis, and subsequent fertility....

Author(s)
Zobel, R.; Taponen, J.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2014, 97, 6, pp 3570-3577
AbstractFull Text

It has been suggested that synthetic analoge administration can significantly influence pregnancy rates in cattle. The objective of the study was to establish the influence of synthetic analoge administration on early pregnancy loss rates for Simmental dairy cattle in Croatia. A total of 1080 cows...

Author(s)
Zobel, R.; Ukalović, M.; Rošić, N.; Kostelac, S.; Gavrić, T.; Jakšić, F.; Bronzović, M.; Popović-Golić, N.; Pelc, G.; Petković, Z.; Uzbašić, V.; Nakić, V.
Publisher
Hrvatski Veterinarski Institut, Centar za Peradarstvo, Zagreb, Croatia
Citation
Veterinarska Stanica, 2013, 44, 6, pp 449-454
Abstract

In an effort to better understand the consequences of early weaning (EW) for replacement beef heifers, a two-phase experiment was conducted investigating the impact on metabolic function and documenting reproductive characteristics. In phase 1, Angus × Simmental heifers (n=35) were stratified by BW ...

Author(s)
Zezeski, A. L.; McCracken, V. L.; Poole, R. K.; Al-Naib, A.; Smith, J. K.; McCann, M. A.; Rhoads, M. L.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2017, 11, 5, pp 820-825
Abstract

It has been suggested that the time of insemination has effect on the calves' sex ratio because of the differences in timing of capacitation, motility and survival time of the X and Y spermatozoa in the female reproductive tract. We have conducted a field trial to study the effects of different...

Author(s)
Zobel, R.; Gereš, D.; Pipal, I.; Buić, V.; Gračner, D.; Tkalcic, S.
Publisher
Wiley-Blackwell, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2011, 46, 4, pp 595-601

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