Intravaginal Device
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Diferentes momentos de aplicação de gonadotrofina coriônica equina em protocolo de inseminação artificial em tempo fixo para vacas de leite
RESUMO Avaliaram-se diferentes momentos de aplicação da gonadotrofina coriônica equina (eCG) em protocolos de inseminação artificial em tempo fixo (IATF) para vacas de leite. Foram utilizadas 76 fêmeas, as quais receberam, no dia zero (D0) do protocolo, dispositivos intravaginais de progesterona, sendo esses retirados no D9, e os animais foram, então,
Arq. Bras. Med. Vet. Zootec.. Publicado em: 13/12/2019
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2. Effect of recombinant bovine somatotropin (rbST) treatment on follicular population and development in non-lactating dairy cows
Abstract The aim of this study was to evaluate the long-term effects of recombinant bovine somatotropin (rbST) on follicle population and ovulatory follicle development in non-lactating dairy cows. Twenty-one Jersey cows were allocated in rbST (n=11) or control (n=10) groups. On day -60, cows in rbST group received 500 mg of somatotropin (s.c. Lactotropin®,
Anim. Reprod.. Publicado em: 25/11/2019
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3. Effectiveness of a low-dose Norgestomet ear implant in short-term protocols to induce estrus in ewes during the non-breeding season in Brazil.
ABSTRACT The objective of this study was to evaluate the reproductive performance of ewes subjected to a short-term protocol for estrus induction using 1 mg of Norgestomet during the non-breeding season in Brazil. A total of 84 ewes were randomly divided into two equal groups (n = 42 per group). Controlled Internal Drug Release (CIDR) containing 330 mg proge
R. Bras. Zootec.. Publicado em: 03/10/2019
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4. Insulin effect during a Heatsynch protocol in dairy cows
RESUMO: O objetivo deste estudo foi avaliar o efeito da administração exógena de insulina sobre crescimento folicular, apresentação de cio e taxa de concepção durante um protocolo de sincronização da ovulação. As vacas holandês lactantes foram submetidas ao protocolo Heatsynch, com inserção do dispositivo intravaginal contendo 1,9 g de progest
Cienc. Rural. Publicado em: 29/07/2019
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5. Produção de embriões em ovinos Morada Nova e Somalis Brasileira
ABSTRACT Superovulatory response and embryo yield in 19 Morada Nova and 20 Somalis Brasileira ewes was analyzed. All animals were synchronized with the insertion of an intravaginal device (CIDR(r)) on Day 0, replaced by a new device on Day 7, which remained in place until Day 14 and superovulated with 133mg of porcine FSH (pFSH) in decreasing doses at 12h in
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2016-10
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6. The effects of intramuscular or intravenous injections of gonadotropin releasing hormone at fixed-time artificial insemination on pregnancy rates of Bos indicus beef cows
The effect of an intramuscular versus intravenous administration of gonadotropin releasing hormone (GnRH) at fixed-time AI (FTAI) on the pregnancy rates of crossbred Bos indicus beef cows was evaluated. Pluriparous nursing calv cows (n=120) were synchronized as follows: d 0 cows received a 2.0 mg injection of estradiol benzoate (EB) and insertion of a contro
Braz. arch. biol. technol.. Publicado em: 25/03/2014
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7. Reproductive parameters of Sindhi cows (Bos taurus indicus) treated with two ovulation synchronization protocols
The objective of this study was to evaluate the reproductive parameters of Sindhi cows aiming to improve the efficiency of fixed-time artificial insemination protocols in this breed. For this purpose, sixteen Sindhi cows were divided into two groups: in group I (EB, n = 8) animals received an intravaginal P4 implant and an application of 2 mg of estradiol be
R. Bras. Zootec.. Publicado em: 2013-06
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8. Short, medium or long-term hormonal treatments for induction of synchronized estrus and ovulation in Saanen goats during the nonbreeding season
The objective of this study was to compare the effect of hormonal treatment duration through the use of intravaginal sponges impregnated with 60 mg MAP for 6 (G6; n = 10), 9 (G9; n = 10) or 12 (G12; n = 10) days. All nulliparous (n = 15) and lactating (n = 15) Saanen goats received 37.5 µg d-cloprostenol and 200 IU eCG 24 hours before sponge removal during
R. Bras. Zootec.. Publicado em: 2013-03
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9. Effect of the ovulatory follicle diameter and progesterone concentration on the pregnancy rate of fixed-time inseminated lactating beef cows
The objective of this study was to evaluate the influence of the ovulatory follicle diameter on the reproductive performance of lactating beef cows subjected to low progesterone fixed-time artificial insemination (FTAI) protocols. Ninety-three lactating beef cows (60-80 days postpartum) at random stages of estrous cycle were given a luteolytic dose of prosta
Revista Brasileira de Zootecnia. Publicado em: 2012-04
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10. Inseminação artificial em tempo fixo em primíparas nelore lactantes acíclicas / Fixed Time Artificial Insemination in Lactating Primiparous Acyclic Nelore Cows
The objective of this experiment was to evaluate the efficiency of a Fixed Time Artificial Insemination (TAI) protocol in an attempt to improve the reproductive performance of primiparous lactating acyclic Nelore cows. The experiment was conducted for a period of breeding season (BS) of 180 days. Were used 350 Nelore cows with body condition score (BCS) grea
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/06/2011
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11. Estudo da dinâmica folicular no protocolo de nove dias de sincronização de cios com o uso de um novo dispositivo de liberação sustentada de progesterona, associado ou não ao eCG, em ovelhas Santa Inês / Study of follicular dynamics during nine day estrus synchronization protocol using a new progesterone sustained release device, associated or not with eCG, in Santa Inês ewes
The present study aimed the assessment of follicular dynamics in Santa Inês ewes during the nine day estrus synchronization protocol, with or without the administration of eCG, using a new intravaginal silicon device, Primer-PR® (Tecnopec Brasil). In Experiment 1, ten ewes received the vaginal device on D0, which was removed on D9 and received 0,4mL of d-c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/03/2010
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12. Reutilização de dispositivos intravaginais de progesterona autoclavados para a indução e sincronização de estro em cabras da raça Toggenburg / Reutilization of autoclaved intravaginal progesterone device for estrous induction and synchronization in Toggenburg goats
O objetivo deste estudo foi avaliar a eficácia da reutilização de dispositivos intravaginais autoclavados sobre a indução do estro, ovulação e fertilidade em caprinos da raça Toggenburg, além de caracterizar o perfil de progesterona plasmática destes animais. O estudo foi realizado na estação de anestro estacional (n=42) e na estação de acasala
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/01/2010