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Abstract

In cattle artificial insemination plays not only a vital role in the successful establishment of pregnancy, which is a prerequisite for initiation of the subsequent lactation, but also in accelerating genetic improvement and facilitating the distribution of semen from genetically elite sires. The...

Author(s)
Diskin, M. G.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2018, 12, s1, pp s75-s84
Abstract

The embryo production results after use of sex-sorted sperm to inseminate superovulated cows (SOV) have not been very encouraging so far, due to the low quantity of sperms used as well as their short half-life. In a previous study conducted in Brazil in Holstein cows, it was shown that using the...

Author(s)
Argudo, D. E.; Soria, C. A.; Durán, J. C.; Bravo, S. E.; Alvarado, J. P.; Alberio, R. H.
Publisher
Veterinaria Organizacion S.L., Malaga, Spain
Citation
REDVET, 2018, 19, 4, pp 041811
Abstract

The study of reproductive physiology in domestic ruminants has progressed from the whole animal to the molecular level in an amazingly short period of time. The volume of information on this subject is enormous; therefore, we have focused on domestic ruminants, with an emphasis on cattle. To date, ...

Author(s)
Smith, M. F.; Geisert, R. D.; Parrish, J. J.
Publisher
Oxford University Press, Cary, USA
Citation
Journal of Animal Science, 2018, 96, 7, pp 2952-2970
Abstract

The present study evaluated the use of sex-sorted sperm upon estrus detection (ED) or following timed artificial insemination (TAI) in lactating dairy cows. Additionally, the effect of the presence of a corpus luteum (CL) at the beginning of the TAI protocol was verified. Cows (539 crossbred Gir ×...

Author(s)
SáFilho, M. F.; Mendanha, M. F.; Sala, R. V.; Carvalho, F. J.; Guimarães, L. H. C.; Baruselli, P. S.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2013, 143, 1/4, pp 19-23
Abstract

The purposes of this study were to examine the relationship between male artificial insemination (AI) fertility and sperm acrosomal conditions assessed by new and conventional staining techniques and to identify possible reproductive dysfunctions causing low conception rates in AI using...

Author(s)
Kishida, K.; Sakase, M.; Minami, K.; Arai, M. M.; Syoji, R.; Kohama, N.; Akiyama, T.; Oka, A.; Harayama, H.; Fukushima, M.
Publisher
Society for Reproduction and Development, Tokyo, Japan
Citation
Journal of Reproduction and Development, 2015, 61, 6, pp 519-524
Abstract

The present study aimed to compare the pregnancy rate after timed artificial insemination (TAI) using chilled semen (5°C) and deep-frozen semen (-196°C), evaluate the correlation between the pregnancy rates and the diameters of pre-ovulatory follicles in Nelore heifers, verify the influence of...

Author(s)
Fujita, A. S.; Weiss, R. R.; Rossi Junior, P.; Kozicki, L. E.; Greselle, F. V. N.; Bertol, M. A. F.
Publisher
Universidade Federal do Paraná, UFPR, Palotina, Brazil
Citation
Archives of Veterinary Science, 2013, 18, 3, pp 13-21
Abstract

The major paradigm shift faced by the bovine artificial insemination (AI) was the replacement of locally produced non-frozen liquid semen with cryopreserved semen collected and processed by any of hundreds of AI centers that existed at the time (late 50's, early 60's). The genetic progress realized ...

Author(s)
DeJarnette, J. M.
Publisher
The Society for Theriogenology, Montgomery, USA
Citation
Clinical Theriogenology, 2012, 4, 3, pp 314-322
Abstract

The aim of this study was to examine the effect of sex-sorted semen on the number and quality of embryos recovered from superovulated heifers and cows on commercial dairy farm conditions in Finland. The data consist of 1487 commercial embryo collections performed on 633 and 854 animals of Holstein...

Author(s)
Kaimio, I.; Mikkola, M.; Lindeberg, H.; Heikkinen, J.; Hasler, J. F.; Taponen, J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2013, 80, 8, pp 950-954
Abstract

Interferon-tau (IFNτ) is the conceptus derived specific early pregnancy signal in bovidae. Locally, IFNτ induces an IFNτ specific gene expression (ISG) in endometrial cells and by this it averts luteolysis of the corpus luteum (CL) by suppressing prostaglandin production. Moreover, it was shown...

Author(s)
Ruhmann, B.; Giller, K.; Hankele, A. K.; Ulbrich, S. E.; Schmicke, M.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 104, pp 198-204
Abstract

The objective was to evaluate the effects of timing of insemination and type of semen in cattle subjected to timed artificial insemination (TAI). In Experiment 1, 420 cyclic Jersey heifers were bred at either 54 or 60 h after P4-device removal, using either sex-sorted (2.1×106 sperm/straw) or...

Author(s)
Sales, J. N. S.; Neves, K. A. L.; Souza, A. H.; Crepaldi, G. A.; Sala, R. V.; Fosado, M.; Campos Filho, E. P.; Faria, M. de; SáFilho, M. F.; Baruselli, P. S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2011, 76, 3, pp 427-435

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