Abstract The impact of GnRH treatment on the day of TAI in beef cows has received limited investigation, especially concerning its association with estrus expression. Consequently, two experiments were conducted to assess the potential of GnRH treatment on the day of TAI to enhance fertility according to the expression or not of estrus in beef cows. Experiment 1 aimed to determine ovulation rate and luteal function, while Experiment 2 aimed to determine the effect of the two GnRH treatment approaches on pregnancy rate. In Experiment 1, multiparous Brangus suckling cows (n = 17) were submitted to an 8-day TAI protocol. Estrus occurrence was evaluated based on chalk removal on D10 (TAI) and cows were assigned to receive GnRH (25µg lecirelin; im) according to the group: GnRH (n = 7), regardless of estrus expression; or selectGnRH (n = 10), only cows not detected in estrus. Ovulation rate occurring until 77h after IVD removal did not differ (p = 0.17) between GnRH (85.7%; 6/7) and selectGnRH (100%; 10/10). Also, corpus luteum size and serum progesterone concentration were not affected (p>0.05) by treatments. In Experiment 2, crossbred taurine suckled cows (n = 384) were submitted to the same protocol as described in Experiment 1 and were randomly allocated to GnRH or selectGnRH groups. There was no difference in P/AI between groups (selectGnRH = 55.6%; GnRH = 54.3%; p = 0.7) 30 days after TAI. As expected, there was a pronounced effect (p<0.0001) of estrus expression on P/AI (Estrus = 61.5%; No estrus = 33.0%), regardless of group. In summary, ovulation timing and rate and luteal function did not differ between groups. Also, GnRH administration only in cows that do not show estrus is recommended, considering hormone savings and similar conception rate. investigation Consequently n 17 8day 8 D D1 (TAI 25µg µg lecirelin im group 7, 7 , 7) 10, 10 10) h 0.17 017 0 85.7% 857 85 (85.7% 6/7 67 6 100% 100 (100% 10/10. 1010 10/10 . 10/10) Also p>0.05 p005 05 (p>0.05 treatments 384 PAI P AI 55.6% 556 55 54.3% 543 54 3 0.7 07 expected p<0.0001 p00001 0001 (p<0.0001 61.5% 615 61 5 33.0%, 330 33.0% 33 33.0%) summary recommended 0.1 01 85.7 (85.7 6/ (100 101 10/1 p>0.0 p00 (p>0.0 38 55.6 54.3 0. p<0.000 p0000 000 (p<0.000 61.5 33.0 85. (85. (10 10/ p>0. p0 (p>0. 55. 54. p<0.00 p000 00 (p<0.00 61. 33. (85 (1 p>0 (p>0 p<0.0 (p<0.0 (8 ( p> (p> p<0. (p<0. p<0 (p<0 p< (p<

Atualmente a atenção odontológica precoce tem sido enfatizada, pois atitudes e práticas adquiridas nos primeiros anos de vida tornam-se resistentes a mudanças. Devido ao maior contato com seus pacientes, o pediatra é profissional importante na transmissão de orientações relacionadas à saúde bucal. O presente estudo teve como objetivo verificar conhecimentos e atitudes de médicos pediatras atuantes em Londrina - PR, em relação à promoção de saúde bucal de crianças por eles atendidas. Dados foram coletados mediante questionário, abordando aspectos referentes à formação dos dentes e doença cárie. Sobre a cárie dentária, 28,8% dos pediatras não informaram qual sua etiologia, enquanto 48,1% afirmaram a transmissibilidade da doença. Os resultados observados sugerem que os pediatras apresentam atitudes e práticas positivas em relação à saúde bucal, mas que informações sobre cárie dentária precisam ser reforçadas.

Early dental care is emphasized today, since the attitudes and practices acquired during the first years of life become resistant to change. Because of greater contact with their patients, pediatricians are professionals of importance with regard to transmitting guidance relating to oral health. The present study had the aim of investigating the knowledge and attitudes of pediatricians practicing in Londrina, PR, regarding the promotion of oral health among the children that they attend. Data were collected by means of a questionnaire that covered matters relating to tooth formation and caries. Regarding dental caries, 28.8% of the pediatricians could not say what its etiology was, while 48.1% said that the disease was transmissible. The results observed suggested that the pediatricians presented positive attitudes and practices in relation to oral health, but that the information on dental caries needs to be reinforced.

Actualmente ha sido enfatizada la atención odontológica precoz, pues actitudes y prácticas adquiridas en los primeros años de vida se resisten a los cambios. Debido al mayor contacto con sus pacientes el pediatra es profesional importante en la transmisión de orientaciones relacionadas a la salud bucal. El presente estudio tuvo el objetivo de verificar conocimiento y actitudes de médicos pediatras que ejercen en Londrina, estado de Paraná, Brasil, en relación a la promoción de la salud bucal de los niños que atienden. Los datos se recaudaron mediante cuestionario comprendiendo aspectos referentes a la formación de los dientes y de la dolencia de caries. Sobre la caries dental el 28,8% de los pediatras no informaron su etiología, mientras que el 48,1% afirmaron el carácter transmisible de la enfermedad. Los resultados observados sugieren que los pediatras presentan actitudes y prácticas positivas en relación a la salud bucal pero que es necesario reforzar las informaciones sobre caries dentaria.

Atualmente a atenção odontológica precoce tem sido enfatizada, pois atitudes e práticas adquiridas nos primeiros anos de vida tornam-se resistentes a mudanças. Devido ao maior contato com seus pacientes, o pediatra é profissional importante na transmissão de orientações relacionadas à saúde bucal. O presente estudo teve como objetivo verificar conhecimentos e atitudes de médicos pediatras atuantes em Londrina - PR, em relação à promoção de saúde bucal de crianças por eles atendidas. Dados foram coletados mediante questionário, abordando aspectos referentes à formação dos dentes e doença cárie. Sobre a cárie dentária, 28,8% dos pediatras não informaram qual sua etiologia, enquanto 48,1% afirmaram a transmissibilidade da doença. Os resultados observados sugerem que os pediatras apresentam atitudes e práticas positivas em relação à saúde bucal, mas que informações sobre cárie dentária precisam ser reforçadas.

Early dental care is emphasized today, since the attitudes and practices acquired during the first years of life become resistant to change. Because of greater contact with their patients, pediatricians are professionals of importance with regard to transmitting guidance relating to oral health. The present study had the aim of investigating the knowledge and attitudes of pediatricians practicing in Londrina, PR, regarding the promotion of oral health among the children that they attend. Data were collected by means of a questionnaire that covered matters relating to tooth formation and caries. Regarding dental caries, 28.8% of the pediatricians could not say what its etiology was, while 48.1% said that the disease was transmissible. The results observed suggested that the pediatricians presented positive attitudes and practices in relation to oral health, but that the information on dental caries needs to be reinforced.

Actualmente ha sido enfatizada la atención odontológica precoz, pues actitudes y prácticas adquiridas en los primeros años de vida se resisten a los cambios. Debido al mayor contacto con sus pacientes el pediatra es profesional importante en la transmisión de orientaciones relacionadas a la salud bucal. El presente estudio tuvo el objetivo de verificar conocimiento y actitudes de médicos pediatras que ejercen en Londrina, estado de Paraná, Brasil, en relación a la promoción de la salud bucal de los niños que atienden. Los datos se recaudaron mediante cuestionario comprendiendo aspectos referentes a la formación de los dientes y de la dolencia de caries. Sobre la caries dental el 28,8% de los pediatras no informaron su etiología, mientras que el 48,1% afirmaron el carácter transmisible de la enfermedad. Los resultados observados sugieren que los pediatras presentan actitudes y prácticas positivas en relación a la salud bucal pero que es necesario reforzar las informaciones sobre caries dentaria.