Nova pipeta para inseminação intra-uterina em suínos

Diehl, Gustavo Nogueira; Filha, Wald'ma Sobrinho Amaral; Kummer, Rafael; Koller, Felipe Leonardo; Bernardi, Mari Lourdes; Wentz, Ivo; Bortolozzo, Fernando Pandolfo

doi:10.1590/s0103-84782006000100027

Cited by 12 publications

(29 citation statements)

References 8 publications

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“…However, Martínez et al (2001) used a flexible catheter for embryo transfer in a procedure very similar to intrauterine artificial insemination and verified that a catheter could be successfully introduced in 10.3% of the sows. In this study, the inseminations presenting a small degree of difficulty in fixing the pipette were observed in primiparous and, mainly, nulliparous sows, confirming the reports by Levis et al (2002) and Diehl et al (2006).…”

Section: Resultssupporting

confidence: 92%

“…Similar IAIU pipette fixing results were obtained by Dallanora et al (2004a), 97.4%; Bennemann et al (2004); 100%; Bennemann et al (2006), 98.1%, andDiehl et al (2006), 95.9%. However, none of these authors inseminated nulliparous sows and the success reported by Bennemann et al (2004) of 100% was obtained by inseminating only pluriparous sows.…”

Section: Resultssupporting

confidence: 78%

“…This incapacity was probably related to the short insemination time used by the authors (an average of 2.3 minutes/insemination), especially in the primiparous sows, which concentrated most cases of incapacity and difficulty in introducing the intra-uterine catheter. Patience and constant sow stimulation by massaging the back region, at the moment the catheter was introduced, allowed 100% insemination in this study, but no cases such as those described by Diehl et al (2006) were recorded.…”

Section: Resultsmentioning

confidence: 82%

“…High bleeding rates were reported by Diehl et al (2006), who evaluated two different intrauterine insemination pipettes, one formed by a single catheter and the other similar to the one used in this study, consisting of a pipette and an internal catheter. Of the females inseminated, 20.6 and 15.2% presented bleeding when the first and second catheter were used, respectively, in disagreement with the hypothesis that the inclusion of primiparous sows in the experiment leads to high bleeding rates, since primiparous and nulliparous sows were inseminated and lower rates were obtained (6.0%) in this study.…”

Section: Resultsmentioning

confidence: 96%

“…Despite this fact, the catheter was introduced in the uterus and the intrauterine insemination was successfully performed. Using the same insemination pipette, Diehl et al (2006) observed that it was not possible to introduce the intrauterine catheter in 4.5% of the sows. This incapacity was probably related to the short insemination time used by the authors (an average of 2.3 minutes/insemination), especially in the primiparous sows, which concentrated most cases of incapacity and difficulty in introducing the intra-uterine catheter.…”

Section: Resultsmentioning

confidence: 99%

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Reproductive performance of sows submitted to intrauterine insemination

Araújo¹,

Costa²,

Costa³

et al. 2009

R. Bras. Zootec.

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-The objective of this study was to evaluate the reproductive performance of sows artificially inseminated by the intrauterine (IAIU) technique. The experiment was arranged in a randomized complete block design, with 300 sows being distributed in five insemination techniques: control, intra-cervical (IAIC) with 3x10 9 spermatozoa/ 100 mL; intrauterine (IAIU) with 1x10 9 spermatozoa/100 mL; intrauterine with com 1x10 9 spermatozoa/50 mL; intrauterine with 5x10 8 spermatozoa/100 mL; and intrauterine com 5x10 8 spermatozoa/50 mL. The sows submitted to intrauterine insemination presented a farrowing rate of 90.8% and return to estrus rate of 9.2%, which did not differ from the rates obtained by the intra-cervical technique (90.0% and 10.0%, respectively). Total litter size did not differ between the techniques, with the means being from 11.4 to 11.9 piglets at farrowing. Although 4.6% of the sows submitted to intrauterine artificial insemination had difficulty with pipette insertion into the cervix, 100% of them were inseminated.When evaluating semen backflow, no difference was found between the intra-cervical and intrauterine insemination techniques. However, total semen backflow was higher in sows submitted to inter-cervical insemination. No difference was found in the presence of blood between the two methods evaluated. Hence, any of the intrauterine insemination techniques can substitute inter-cervical artificial insemination without damaging the reproductive performance of the animals.Key Words: intra-cervical insemination, intrauterine insemination, semen backflow, swine Desempenho reprodutivo de matrizes suínas inseminadas pela técnica intrauterinaRESUMO -Um experimento foi realizado com o objetivo de avaliar o desempenho reprodutivo de matrizes suínas inseminadas pela técnica intrauterina (IAIU). Em um delineamento inteiramente casualizado, 300 fêmeas foram distribuídas em cinco técnicas de inseminação: controle -intracervical (IAIC) com 3x10 9 espermatozoides/100 mL; intrauterina (IAIU) com 1x10 9 espermatozoides/100 mL; intrauterina com 1x10 9 espermatozoides/50 mL; intrauterina com 5x10 8 espermatozoides/100 mL; e intrauterina com 5x10 8 espermatozoides/50 mL. As fêmeas inseminadas pela técnica intrauterina apresentaram taxa de parto de 90,8% e taxa de repetição de estro de 9,2%, que não diferiram das taxas obtidas pela técnica intracervical (90,0% e 10,0%, respectivamente). O total de leitões nascidos não diferiu entre as técnicas, com média geral de 11,4 a 11,9 leitões por parto. Apesar da dificuldade na passagem da pipeta em 4,6% das fêmeas submetidas à inseminação artificial intrauterina, 100% das fêmeas foram inseminadas. Na avaliação da ocorrência de refluxo de sêmen, não houve diferença entre as técnicas de inseminação intracervical e intrauterina. Entretanto, o total de espermatozoides refluídos foi maior nas fêmeas submetidas à inseminação intracervical. A ocorrência de sangramento não diferiu entre as técnicas estudadas. Portanto, qualquer uma das técnicas de inseminação intrauterina po...

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Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 78%

Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

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