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AbstractFull Text

The aim of the study was to verify the efficiency of deslorelin (DES) as inductor of ovulation in timed-artificial insemination (TAI) protocols on pregnancy rate (PR) in primiparous Bos taurus indicus cows. Hundred seventy six animals were divided into three groups (G): GNDES (Group No Deslorelin;...

Author(s)
Oliveira, L. S. R. de; Souza, A. L. B. de; Kozicki, L. E.; Segui, M.; Pedosa, V. B.; Dell'Aqua Junior, J. A.; Weiss, R. R.; Abreu, A. C. M. R. de
Publisher
Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, Brazil
Citation
Veterinária e Zootecnia, 2017, 24, 2, pp 363-372
Abstract

The present study aimed to evaluate the diameter of the ovarian preovulatory follicle (POF) at the time of TAI in multiparous cows Bos taurus indicus correlating it with the conception rate (CR). POR Extenso o 145 cows were used, calving to 65 days and subjected to a single protocol: day 0 (d0)...

Author(s)
Oliveira, D. A. M. de; Kozicki, L. E.; Talini, R.; Pedrosa, V. B.; Gassenferth, G.; Weiss, R. R.
Publisher
Universidade Federal do Paraná, UFPR, Palotina, Brazil
Citation
Archives of Veterinary Science, 2016, 21, 3, pp 61-67
Abstract

This study aimed to compare the pregnancy rate using the conventional artificial insemination (AI) or deep intracornual artificial insemination (DIAI), with low number of spermatozoa (4.0 million sperm) in 270 Nelore cows. The animals were divided in two groups (G: G1 (135 cows)) conventional AI...

Author(s)
Meirelles, C.; Kozicki, L. E.; Weiss, R. R.; Segui, M. S.; Souza, A.; Santos, I. W. dos; Breda, J. C. dos S.
Publisher
Instituto De Tecnologia Do Paraná (TECPAR), Curitiba, Brazil
Citation
Brazilian Archives of Biology and Technology, 2012, 55, 3, pp 371-374
Abstract

The study aimed (1) to verify if artificial insemination (AI), performed in the morning, evening or night time has influence on the pregnancy rate on high production dairy cows, and (2) to determine the repeat breeding rate after the AI at intervals of 01-21, 22-43 and 44-65 days. We analyzed 1980...

Author(s)
Breda, J. C. dos S.; Kozicki, L. E.; Segui, M. S.; Grebogi, A. M.; Weiss, R. R.; Bertol, M. A. F.
Publisher
Pontificia Universidade Católica do Paraná, Paraná, Brazil
Citation
Revista Acadêmica Ciências Agrárias e Ambientais, 2014, 12, 4, pp 236-242
Abstract

In order to use fixed time artificial insemination FTAI, the present study aimed to synchronize the estrus and ovulation of Simmental/Brangus crossbred cows using different hormonal protocols where the animals were handled three times. Five hundred and seventy-seven cows were divided in four groups ...

Author(s)
Breda, J. C. dos S.; Kozicki, L. E.; Frare, J.; Silva, D. B.; Weiss, R. R.; Santos, I. W.; Segui, M. S.; Abreu, R. A. de; Bertol, M. A. F.
Publisher
Pontificia Universidade Católica do Paraná, Paraná, Brazil
Citation
Revista Acadêmica Ciências Agrárias e Ambientais, 2013, 11, 1, pp 51-57
Abstract

The aim of this work was to study estrus synchronization and fixed time artificial insemination (FTAI) in dairy buffaloes during season anestrus. One hundred thirty-nine dairy buffaloes in seasonal anestrus were divided in two groups as G1(n=66) and G2(n=73). The protocols for both the groups were...

Author(s)
Frares, L. F.; Weiss, R. R.; Kozicki, L. E.; Santangelo, R. P.; Abreu, R. A. de; Santos, I. W. do; Dell'aqua Junior, J. A.; Breda, J. C.
Publisher
Instituto De Tecnologia Do Paraná (TECPAR), Curitiba, Brazil
Citation
Brazilian Archives of Biology and Technology, 2013, 56, 4, pp 575-580
Abstract

The aim of this study was to reduce the waiting voluntary period in dairy cows by administration of two different hormonal protocols for estrus synchronization and fixed-time artificial insemination (FTAI). One hundred twenty-eight Holstein dairy cows were studied. Three groups (G) were carried...

Author(s)
Suplicy, M.; Suplicy Filho, H.; Kozicki, L. E.; Breda, J. C. dos S.; Weiss, R. R.; Segui, M. S.
Publisher
Universidade Federal do Paraná, UFPR, Curitiba, Brazil
Citation
Archives of Veterinary Science, 2012, 17, 3, pp 57-62
Abstract

The present study was designed to assess the effect of conventional artificial insemination (CAI) and deep intrauterine artificial insemination (DAI) using different concentrations of spermatozoa on the production of embryos in mares during two breeding season (BS). Seventy-four estrus cycles from...

Author(s)
Camargo, C. E.; Macan, R.; Munhoz, M. L.; Kozicki, L. E.; Ollhoff, R. D.; Segui, M. S.; Talini, R.; Weiss, R. R.; Steinberg-Galan, T. G.; Felicio, L. C. S.
Publisher
Hippiatrika Verlag GmbH, Baden-Baden, Germany
Citation
Pferdeheilkunde, 2018, 34, 1, pp 57-60
Abstract

The aim of this study was to evaluate three different protocols for artificial insemination (AI) and one with natural mating in breeding sows in order to compare the number of piglets born between groups, considering the race and parity, as well as the rate pregnancy. We used 273 pluriparous...

Author(s)
Giacomeli, A. B. de M.; Kozicki, L. E.; Carvalho, N. S. de
Publisher
Pontificia Universidade Católica do Paraná, Paraná, Brazil
Citation
Revista Acadêmica Ciências Agrárias e Ambientais, 2010, 8, 3, pp 333-339
Abstract

This study investigates the effect of time of storage of epididymides at room temperature and the addition of 20% of seminal plasma to the cryopreservation extender, on post thaw quality and fertility of ovine spermatozoa collected from the cauda epididymis. Spermatic kinetics, integrity and the...

Author(s)
Bergstein-Galan, T. G.; Weiss, R. R.; Bertol, M. A. F.; Abreu, A. C. M. R.; Busato, E.; Kozicki, L. E.; Bicudo, S. D.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 96, pp 69-75

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