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Abstract

The use of artificial insemination in cows makes possible breeding of superior animals, which are known as enhancer individuals. However, the major limitation for its expansion has been the necessity for estrus detection. Thus, programs of fixed time artificial insemination (FTAI), without the...

Author(s)
Cavalieri, F. L. B.; Colombo, A. H. B.; Andreazzi, M. A.; Gonçalves, É. A.
Publisher
Universidade Federal do Paraná, UFPR, Palotina, Brazil
Citation
Archives of Veterinary Science, 2016, 21, 1, pp 25-31
Abstract

Brazil has a large flock of sheep, with about 18.41 million heads. Genetic improvement is a way to increase farm productivity, with fixed-time artificial insemination (TAI) being used for this purpose. Therefore, the objective of this study was to evaluate the interval between estrus manifestation...

Author(s)
Farias, L. B.; Maffi, A. S.; Luz, G. B.; Brauner, C. C.
Publisher
Veterinaria Organizacion S.L., Malaga, Spain
Citation
REDVET, 2018, 19, 7, pp 071806
AbstractFull Text

The objective of this study was to evaluate the reproductive performance of gilts subjected to post-cervical artificial insemination (PCAI) compared to traditional artificial insemination (TAI). We also evaluated the degree of difficulty in bypassing the cervix, time required to perform the ...

Author(s)
Ternus, E. M.; Vanz, A. R.; Lesskiu, P. E.; Preis, G. M.; Serafini, L.; Consoni, W.; Traverso, S. D.; Cristani, J.
Publisher
FEPMVZ - Editora, Belo Horizonte, Brazil
Citation
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2017, 69, 4, pp 777-784
AbstractFull Text

In Brazil, about 5% of the cattle herd reproduces through artificial insemination (AI) biotechnology. The success of AI depends on factors inherent to the female, inherent to the semen and the inseminator's ability. Among the factors inherent to the female are: body score, health status,...

Author(s)
Gomes, D. S.; Bezerra, S. T. da C. S.; Silva, L. R. da
Publisher
Universidade Estadual do Ceará, Faculdade de Veterinaria, Ceará, Brazil
Citation
Ciência Animal, 2019, 29, 1, pp 37-44
Abstract

Between the years 2013 and 2016 were used 31 crossbred cows of Gir and Dutch races, at different stages of gestation, multipara aged 4 and 8 years and body condition score (BCS) average 3 on a scale that ranged from 1 to 5 (1 very lean and 5 very fat) of the Federal Rural University of milk cattle...

Author(s)
Andrade, R. B. de; Silva, V. C. F. da; Silva, A. F. da; Caldas, S. A.; Costa, O. M. da; Abidu-Figueiredo, M.; Palhano, H. B.
Publisher
Sociedade de Medicina Veterinária do Estado do Rio de Janeiro, Rio de Janerio, Brazil
Citation
Brazilian Journal of Veterinary Medicine, 2017, 39, 1, pp 7-19
AbstractFull Text

The effects of three insemination protocols were evaluated on the reproductive performance in 249 British and crosses beef heifers, mated to the 14 or 27 months of age. Sixty two heifers with 27 months were submitted to FTAI after the treatment OvSynch; 61 heifers with 27 months and 32 heifers with ...

Author(s)
Gottschall, C.; Bittencourt, H. R.; Mattos, R. C.; Gregory, R. M.
Publisher
Universidade Luterana do Brasil, Canoas, Brazil
Citation
Veterinaria em foco, 2018, 15, 2, pp 3-18
Abstract

The preservation of chilled boar semen for artificial insemination is the most performed worldwide. For this, the sperm are extended in medium that provides substrates to nourish and protect these cells. However, the storage temperature range of chilled semen is not able to completely stop the...

Author(s)
Rigo, V. H. B.
Publisher
Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, São Paulo, Brazil
Citation
Influência do resveratrol na qualidade e na fertilidade do espermatozoide suíno refrigerado entre 15-17°C por 72 horas para inseminação artificial intrauterina, 2016, pp 125 pp.
Abstract

This study aimed to evaluate the use of low- or high-dose intravaginal progesterone (P4)-releasing devices on pregnancy rates of Zebu heifers submitted to fixed-timed artificial insemination (TAI). Pubertal Bos indicus Nellore heifers were injected at day 0 with 2 mg estradiol benzoate (EB) and...

Author(s)
Natal, F. L. N.; Pacheco, M. D.; Alvarez, R. H.
Publisher
Instituto de Zootecnia, Nova Odessa, Brazil
Citation
Boletim de Indústria Animal, 2019, 76, pp unpaginated
Abstract

There is various techniques of artificial insemination, but are not yet applied routinely in sheep. The cervical insemination is quick and simple. Laparoscopy requires specialized technical and more work. artificial insemination using simultaneous estrus synchronization provides higher...

Author(s)
Santana, M. das V.; Martins, G. H. C.; Porfirio, K. de P.; Soares, F. F. F.; Teixeira, L. S. de A.; Sousa, J. D. R. de; Paula, N. R. de O.; Mineiro, A. L. B. B.
Publisher
Colégio Brasileiro de Reprodução Animal, Belo Horizonte, Brazil
Citation
Revista Brasileira de Reprodução Animal, 2016, 40, 4, pp 467-468
AbstractFull Text

The thermal comfort of crossbred dairy cows prior to artificial insemination and the relation with the conception rate were evaluated. This study was carried out in Uberlândia, Minas Gerais, Brazil, characterized by a dry winter and a rainy summer, in which was used 112 crossbred dairy cows, whose...

Author(s)
Hooper, H. B.; Salomão, D. de O. S.; Ayres, G. F.; Titto, C. G.; Santos, R. M. dos; Nascimento, M. R. B. de M.
Publisher
Pontificia Universidade Católica do Paraná, São José dos Pinhais, Brazil
Citation
Revista Acadêmica: Ciência Animal, 2018, 16, Special edition, pp e161006

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