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Abstract

Fixed-time post-cervical artificial insemination (FTAI) drastically reduces labour requirements and increases the use of boars with higher genetic merit. This study evaluated the efficiency of eCG administration combined with/without the GnRH agonist buserelin for the induction and synchronization...

Author(s)
Baroncello, E.; Bernardi, M. L.; Kummer, A. D.; Wentz, I.; Bortolozzo, F. P.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2017, 52, 1, pp 76-82
AbstractFull Text

The extensive use of artificial insemination in the swine industry emphasizes the need for distribution of good quality semen doses by the artificial insemination centres. A factor that could modify seminal quality is the contact of extended semen with environmental air. However, only few studies...

Author(s)
Ribeiro, C. de V.; Moroni, J. L.; Menegat, M. B.; Mellagi, A. P. G.; Bernardi, M. L.; Wentz, I.; Bortolozzo, F. P.
Publisher
Universidade Federal do Rio Grande do Sul, Faculdade de Veterinária, Porto Alegre, Brazil
Citation
Acta Scientiae Veterinariae, 2016, 44, pp 1423
Abstract

Boar exposure is used to stimulate follicle development and estrus in sows after weaning and also to improve semen uptake and sperm transport with insemination. However, the need and value of boar exposure is uncertain when ovulation induction is used. These studies were designed to determine the...

Author(s)
Ulguim, R. R.; Bortolozzo, F. P.; Wentz, I.; Johnston, M.; Webel, S. K.; Arend, L.; Knox, R. V.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 105, pp 27-33
Abstract

The study evaluated the reproductive performance of primiparous sows submitted to post-cervical insemination (PCAI) compared with cervical artificial insemination (CAI). Difficulty with catheter introduction, the occurrence of bleeding or semen backflow during insemination, and volume and sperm...

Author(s)
Sbardella, P. E.; Ulguim, R. R.; Fontana, D. L.; Ferrari, C. V.; Bernardi, M. L.; Wentz, I.; Bortolozzo, F. P.
Publisher
Wiley-Blackwell, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2014, 49, 1, pp 59-64
Abstract

Fixed-time post-cervical artificial insemination (FTPCAI) allows a wider use of high indexing boars and a considerable reduction in labour requirements in swine production. The aim of this study was to evaluate fixed-time artificial insemination (FTAI) efficiency using different artificial ...

Author(s)
Fontana, D. L.; Ulguim, R. R.; Sbardella, P. E.; Bernardi, M. L.; Wentz, I.; Bortolozzo, F. P.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2014, 144, 3/4, pp 109-114
Abstract

This study evaluated the use of a single fixed-time artificial insemination (FTAI) in gilts and weaned sows using 2.5 mg of porcine luteinizing hormone (pLH) administered through vulvar submucosal route, at the onset of estrus. In experiment 1 (Exp.1), 318 pubertal gilts were assigned to two...

Author(s)
Ulguim, R. R.; Fontana, D. L.; Bernardi, M. L.; Wentz, I.; Bortolozzo, F. P.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2016, 86, 4, pp 1072-1080
Abstract

Better efficiency in swine artificial insemination (AI) is accomplished by reducing the necessary number of sperm cells and achieving high reproductive performance. Some strategies have been developed for use under field conditions, such as the site of sperm deposition (post-cervical AI), a single...

Author(s)
Bortolozzo, F. P.; Menegat, M. B.; Mellagi, A.; Bernardi, M. L.; Wentz, I.
Publisher
Wiley-Blackwell, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2015, 50, s2, pp 80-84
AbstractFull Text

The aim of this study is to evaluate the effect of age and growth rate of gilts at the first mating on productive performance and retention rate until the third farrowing. The study was performed in a gilt development unit (GDU) with a breeding stock capacity of 1000 females and a goal of 90 gilts...

Author(s)
Faccin, J. E. G.; Laskoski, F.; Lesskiu, P. E.; Paschoal, A. F. L.; Mallmann, A. L.; Bernardi, M. L.; Mellagi, A. P. G.; Wentz, I.; Bortolozzo, F. P.
Publisher
Universidade Federal do Rio Grande do Sul, Faculdade de Veterinária, Porto Alegre, Brazil
Citation
Acta Scientiae Veterinariae, 2017, 45, pp 1452
AbstractFull Text

The aim of this study was to verify the association of sow body weight development until the 1st weaning with reproductive performance, piglet production and culling rate until the 3rd farrowing in 196 primiparous sows using logistic regression models. Each 10 kg increase in weight gain in the 1st...

Author(s)
Lesskiu, P. E.; Bernardi, M. L.; Wentz, I.; Bortolozzo, F. P.
Publisher
FEPMVZ - Editora, Belo Horizonte, Brazil
Citation
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2015, 67, 2, pp 465-473
Abstract

One bio-economic analysis was performed to investigate the costs to produce artificial insemination (AI) doses in three different settings (1, 2 and 3). Setting 1 was designed to produce doses with 3 billion spermatozoa on the traditional AI. Setting 2 was designed by improving the technology on...

Author(s)
Arend, L. S.; Magnabosco, D.; Wentz, I.; Bortolozzo, F. P.
Publisher
Colégio Brasileiro de Reprodução Animal, Belo Horizonte, Brazil
Citation
Revista Brasileira de Reprodução Animal, 2014, 38, 2, pp 116-120

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