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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal; Embrapa Unidades Centrais. |
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Data corrente: |
18/03/1998 |
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Data da última atualização: |
26/03/2015 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
PELLEGRIN, A. O.; SERENO, J. R. B.; MAZZA, M. C. M.; LEITE, R. C. |
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Afiliação: |
EMBRAPA. Centro de Pesquisa Agropecuaria do Pantanal (Corumba, MS); EMBRAPA. Centro Nacional de Pesquisa de Florestas (Colombo, PR); UFMG. Escola de Veterinaria (Belo Horizonte, MG). |
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Título: |
Doencas da reproducao e conservacao genetica: levantamento no nucleo de conservacao do bovino pantaneiro. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Corumba: EMBRAPA-CPAP, 1997. |
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Páginas: |
4p. |
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Série: |
(EMBRAPA-CPAP. Comunicado Tecnico, 21) |
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Idioma: |
Português |
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Conteúdo: |
O bovino Pantaneiro, tambem denominado "Tucura" ou "Cuiabano", descendente do gado europeu, inicialmente introduzido pelos colonizadores, desempenhou ate o inicio deste seculo, papel preponderante na economia das regioes inundadas do Pantanal. Atraves do longo processo de selecao natural, adquiriu caracteristicas adaptativas de grande rusticidade que permitiram sua sobrevivencia em condicoes adversas. Estes animais foram, a partir do seculo XX, sendo cruzados de forma absorvente com racas zebuinas, causando uma diminuicao progressiva do seu rebanho, sem nenhum plano sistematico de melhoramento. No entanto, o ecotipo Pantaneiro pode ser uma alternativa promissora, principalmente para propriedades localizadas no Pantanal de alta inundacao. Nesses locais podera superar em desempenho reprodutivo as racas zebuinas. Considerou-se de grande importancia a manutencao da sanidade do nucleo de conservacao da fazenda Nhumirim, visando garantir a performance reprodutiva das femeas e a qualidade do proprio material genetico a ser preservado. A partir de 1991, varias doencas foram levantadas, tendo sido consideradas, inicialmente, a Brucelose, Leptospirose, Campilobacteriose e, posteriormente, as enfermidades a virus como Rinotraqueite Infecciosa Bovina, Diarreia Bovina a Virus (BVD) e Lingua Azul. |
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Palavras-Chave: |
conservação genética; Doença da reprodução; Genetic conservation; Reproduction disease. |
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Thesagro: |
Bovino. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/79392/1/COT21.pdf
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Marc: |
LEADER 01988nam a2200229 a 4500
001 1792195
005 2015-03-26
008 1997 bl uuuu u0uu1 u #d
100 1 $aPELLEGRIN, A. O.
245 $aDoencas da reproducao e conservacao genetica$blevantamento no nucleo de conservacao do bovino pantaneiro.
260 $aCorumba: EMBRAPA-CPAP$c1997
300 $a4p.
490 $a(EMBRAPA-CPAP. Comunicado Tecnico, 21)
520 $aO bovino Pantaneiro, tambem denominado "Tucura" ou "Cuiabano", descendente do gado europeu, inicialmente introduzido pelos colonizadores, desempenhou ate o inicio deste seculo, papel preponderante na economia das regioes inundadas do Pantanal. Atraves do longo processo de selecao natural, adquiriu caracteristicas adaptativas de grande rusticidade que permitiram sua sobrevivencia em condicoes adversas. Estes animais foram, a partir do seculo XX, sendo cruzados de forma absorvente com racas zebuinas, causando uma diminuicao progressiva do seu rebanho, sem nenhum plano sistematico de melhoramento. No entanto, o ecotipo Pantaneiro pode ser uma alternativa promissora, principalmente para propriedades localizadas no Pantanal de alta inundacao. Nesses locais podera superar em desempenho reprodutivo as racas zebuinas. Considerou-se de grande importancia a manutencao da sanidade do nucleo de conservacao da fazenda Nhumirim, visando garantir a performance reprodutiva das femeas e a qualidade do proprio material genetico a ser preservado. A partir de 1991, varias doencas foram levantadas, tendo sido consideradas, inicialmente, a Brucelose, Leptospirose, Campilobacteriose e, posteriormente, as enfermidades a virus como Rinotraqueite Infecciosa Bovina, Diarreia Bovina a Virus (BVD) e Lingua Azul.
650 $aBovino
653 $aconservação genética
653 $aDoença da reprodução
653 $aGenetic conservation
653 $aReproduction disease
700 1 $aSERENO, J. R. B.
700 1 $aMAZZA, M. C. M.
700 1 $aLEITE, R. C.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Biblioteca |
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Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
31/08/2020 |
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Data da última atualização: |
28/06/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
ANDRADE, J. P. N.; GOMEZ-LÉON, V. E.; ANDRADE, F. S.; CARVALHO, B. P.; LACOUTH, K. L.; GARCIA, F. Z.; JACOB, J. C. F.; SALES, J. N. S.; WILTBANK, M. C.; MELLO, M. R. B. |
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Afiliação: |
Joao P. N. Andrade, Universidade Federal Rural do Rio de Janeiro / University of Wisconsin-Madison; Victor E. Gomez-Leon, University of Wisconsin-Madison; Fabiana S. Andrade, Universidade Federal Rural do Rio de Janeiro / University of Wisconsin-Madison; BRUNO PENA CARVALHO, CPAF-AC; Karen L. Lacouth, Universidade Federal do Acre; Felipe Z. Garcia, Universidade Federal Rural do Rio de Janeiro; Júlio C. F. Jacob, Universidade Federal Rural do Rio de Janeiro; José N. S. Sales, Universidade Federal de Lavras; Milo C. Wiltbank, University of Wisconsin-Madison; Marco R.B. Mello, Universidade Federal Rural do Rio de Janeiro. |
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Título: |
Development of a novel 21-day reinsemination program, ReBreed21, in Bos indicus heifers. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Theriogenology, v. 115, p. 125-131, Oct. 2020. |
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ISSN: |
0093-691X |
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DOI: |
https://doi.org/10.1016/j.theriogenology.2020.04.021 |
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Idioma: |
Inglês |
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Conteúdo: |
The aim was to develop a program for resynchronization of ovulation (ReBreed21) that allowed reinsemination of non-pregnant Bos indicus heifers every 21 d using timed AI (TAI) without the need for detection of estrus. The Rebreed21 program begins 12 d after previous TAI (Day 0) by inserting an intravaginal P4 implant (Day 12) that is removed 7 d later (Day 19) combined with treatment with 300 IU of eCG. On Day 21, early pregnancy diagnosis (Doppler PD) is performed based on CL vascularity. Nonpregnant (NP) heifers immediately received AI combined with 100 mg of GnRH. The program is replicated 12 d after second TAI to produce a breeding season (BS) of 42 d with 3 potential TAIs. Two experiments were conducted as a proof of concept for this rapid rebreeding program. In Experiment 1, 76 heifers were enrolled in ReBreed21, as explained above. In Experiment 2, 300 Nellore heifers were synchronized for 1st TAI and randomly assigned to one of two groups: ReBreed21 (n = 147) or another early resynchronization procedure, Resynch14 (n = 153) with P4 implant inserted 14 d after previous TAI plus 50 mg of long-acting injectable P4; 8 d later P4 implant removed (Day 22) and early Doppler PD performed; NP heifers received 150 mg of cloprostenol, 0.5 mg of ECP, and 300 IU of eCG with TAI on Day 24. In both experiments, the largest follicle (LF) was measured at each Resynch TAI. Ultrasound was later used to confirm the early Doppler PD and to determine ovulation (OV) to Resynch at 12 d after TAI in ReBreed21 (Day 33 of pregnancy) and 14 d after TAI in Resynch14 (Day 38 of pregnancy). Final PD was performed 40 d after 3rd TAI. Results for Experiment 1 were: diameter of LF 11.8 ± 0.23 mm; 88.9% OV; 20.5% false positives; 38.1% P/AI at 1st TAI; 44.4% overall P/AI for ReBreed21 TAIs; 72.3% total pregnant at end of BS. In experiment 2, Rebreed21 vs. Resynch14 were different for: diameter of LF (10.9 ± 0.17 vs. 10.0 ± 0.17 mm, P = 0.0003), heifers with LF < 8.5 mm (10.2 vs. 26.4%, P = 0.04), or LF 11 mm (50.0 vs. 37.2%, P = 0.001), and P/AI at first TAI (29.3% [43/147] vs. 20.3% [31/153], P = 0.074) but similar for OV (overall 86.8% [239/275], P = 0.82), false positives (P = 0.52) overall P/AI for Resynch TAIs (33.6 vs. 28.8%, P = 0.4), and total pregnant at end of BS (58.5% [86/147] vs. 55.6% [85/153], P = 0.64). In addition, median time to pregnancy was 9 d earlier (P = 0.0007) for ReBreed21 than Resynch14. Thus, ReBreed21 is a novel protocol that allows earlier reinseminations than Resynch14 but with similar fertility. MenosThe aim was to develop a program for resynchronization of ovulation (ReBreed21) that allowed reinsemination of non-pregnant Bos indicus heifers every 21 d using timed AI (TAI) without the need for detection of estrus. The Rebreed21 program begins 12 d after previous TAI (Day 0) by inserting an intravaginal P4 implant (Day 12) that is removed 7 d later (Day 19) combined with treatment with 300 IU of eCG. On Day 21, early pregnancy diagnosis (Doppler PD) is performed based on CL vascularity. Nonpregnant (NP) heifers immediately received AI combined with 100 mg of GnRH. The program is replicated 12 d after second TAI to produce a breeding season (BS) of 42 d with 3 potential TAIs. Two experiments were conducted as a proof of concept for this rapid rebreeding program. In Experiment 1, 76 heifers were enrolled in ReBreed21, as explained above. In Experiment 2, 300 Nellore heifers were synchronized for 1st TAI and randomly assigned to one of two groups: ReBreed21 (n = 147) or another early resynchronization procedure, Resynch14 (n = 153) with P4 implant inserted 14 d after previous TAI plus 50 mg of long-acting injectable P4; 8 d later P4 implant removed (Day 22) and early Doppler PD performed; NP heifers received 150 mg of cloprostenol, 0.5 mg of ECP, and 300 IU of eCG with TAI on Day 24. In both experiments, the largest follicle (LF) was measured at each Resynch TAI. Ultrasound was later used to confirm the early Doppler PD and to determine ovulation (OV) to Resynch at 12 d afte... Mostrar Tudo |
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Palavras-Chave: |
Cruce de animales; Inseminación artificial; Métodos de mejoramiento genético; Ovulación; Razas zebú; ReBreed21; Ressincronização; Resynchronization; Vaquilla. |
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Thesagro: |
Bos Indicus; Gado Nelore; Gado Zebu; Inseminação Artificial; Novilho; Ovulação; Reprodução Animal. |
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Thesaurus NAL: |
Animal breeding; Artificial insemination; Breeding methods; Heifers; Nellore; Ovulation; Zebu breeds. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/215666/1/27022.pdf
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Marc: |
LEADER 04040naa a2200529 a 4500
001 2124659
005 2021-06-28
008 2020 bl uuuu u00u1 u #d
022 $a0093-691X
024 7 $ahttps://doi.org/10.1016/j.theriogenology.2020.04.021$2DOI
100 1 $aANDRADE, J. P. N.
245 $aDevelopment of a novel 21-day reinsemination program, ReBreed21, in Bos indicus heifers.$h[electronic resource]
260 $c2020
520 $aThe aim was to develop a program for resynchronization of ovulation (ReBreed21) that allowed reinsemination of non-pregnant Bos indicus heifers every 21 d using timed AI (TAI) without the need for detection of estrus. The Rebreed21 program begins 12 d after previous TAI (Day 0) by inserting an intravaginal P4 implant (Day 12) that is removed 7 d later (Day 19) combined with treatment with 300 IU of eCG. On Day 21, early pregnancy diagnosis (Doppler PD) is performed based on CL vascularity. Nonpregnant (NP) heifers immediately received AI combined with 100 mg of GnRH. The program is replicated 12 d after second TAI to produce a breeding season (BS) of 42 d with 3 potential TAIs. Two experiments were conducted as a proof of concept for this rapid rebreeding program. In Experiment 1, 76 heifers were enrolled in ReBreed21, as explained above. In Experiment 2, 300 Nellore heifers were synchronized for 1st TAI and randomly assigned to one of two groups: ReBreed21 (n = 147) or another early resynchronization procedure, Resynch14 (n = 153) with P4 implant inserted 14 d after previous TAI plus 50 mg of long-acting injectable P4; 8 d later P4 implant removed (Day 22) and early Doppler PD performed; NP heifers received 150 mg of cloprostenol, 0.5 mg of ECP, and 300 IU of eCG with TAI on Day 24. In both experiments, the largest follicle (LF) was measured at each Resynch TAI. Ultrasound was later used to confirm the early Doppler PD and to determine ovulation (OV) to Resynch at 12 d after TAI in ReBreed21 (Day 33 of pregnancy) and 14 d after TAI in Resynch14 (Day 38 of pregnancy). Final PD was performed 40 d after 3rd TAI. Results for Experiment 1 were: diameter of LF 11.8 ± 0.23 mm; 88.9% OV; 20.5% false positives; 38.1% P/AI at 1st TAI; 44.4% overall P/AI for ReBreed21 TAIs; 72.3% total pregnant at end of BS. In experiment 2, Rebreed21 vs. Resynch14 were different for: diameter of LF (10.9 ± 0.17 vs. 10.0 ± 0.17 mm, P = 0.0003), heifers with LF < 8.5 mm (10.2 vs. 26.4%, P = 0.04), or LF 11 mm (50.0 vs. 37.2%, P = 0.001), and P/AI at first TAI (29.3% [43/147] vs. 20.3% [31/153], P = 0.074) but similar for OV (overall 86.8% [239/275], P = 0.82), false positives (P = 0.52) overall P/AI for Resynch TAIs (33.6 vs. 28.8%, P = 0.4), and total pregnant at end of BS (58.5% [86/147] vs. 55.6% [85/153], P = 0.64). In addition, median time to pregnancy was 9 d earlier (P = 0.0007) for ReBreed21 than Resynch14. Thus, ReBreed21 is a novel protocol that allows earlier reinseminations than Resynch14 but with similar fertility.
650 $aAnimal breeding
650 $aArtificial insemination
650 $aBreeding methods
650 $aHeifers
650 $aNellore
650 $aOvulation
650 $aZebu breeds
650 $aBos Indicus
650 $aGado Nelore
650 $aGado Zebu
650 $aInseminação Artificial
650 $aNovilho
650 $aOvulação
650 $aReprodução Animal
653 $aCruce de animales
653 $aInseminación artificial
653 $aMétodos de mejoramiento genético
653 $aOvulación
653 $aRazas zebú
653 $aReBreed21
653 $aRessincronização
653 $aResynchronization
653 $aVaquilla
700 1 $aGOMEZ-LÉON, V. E.
700 1 $aANDRADE, F. S.
700 1 $aCARVALHO, B. P.
700 1 $aLACOUTH, K. L.
700 1 $aGARCIA, F. Z.
700 1 $aJACOB, J. C. F.
700 1 $aSALES, J. N. S.
700 1 $aWILTBANK, M. C.
700 1 $aMELLO, M. R. B.
773 $tTheriogenology$gv. 115, p. 125-131, Oct. 2020.
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Embrapa Acre (CPAF-AC) |
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