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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
09/04/2010 |
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Data da última atualização: |
25/09/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FONSECA, J. F. da; TORRES, C. A. A. |
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Afiliação: |
JEFERSON FERREIRA DA FONSECA, CNPC; UFV, Viçosa, MG. |
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Título: |
Administration of hCG 5 days after breeding and reproductive performance in nulliparous dairy goats. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Reproduction in Domestic Animals, v. 40, n. 6, p. 495-499, 2005. |
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DOI: |
10.1111/j.1439-0531.2005.00612.x |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The objective of this study was to investigate the effect of hCG administration 5 days after breeding on plasma progesterone (P4) concentration and reproductive performance of oestrousinduced nulliparous dairy goats. A total of 59 nulliparous goats (36 Alpine and 23 Saanen) received intravaginal sponges with 60 mg medroxyprogesterone acetate for 9 days plus 200 IU equine chorionic gonadotrophin (eCG) and 22.5 lg d-cloprostenol 24 h before sponge removal. After detection of oestrus (day of oestrus ¼ day 0) and breeding, 49 females were randomly assigned, according to the breed, into two treatments (T1 and T2). In T1 (n ¼ 25) and T2 (n ¼ 24), animals received intramuscular injection of 1 ml of saline solution (control) or 250 IU hCG, respectively, 5 days after breeding. Plasma P4 concentration (ng/ml) was determined from blood sampled on days 0, 5, 7, 13, 17, 21, 28 and 45 after breeding. Animals were scanned by transrectal ultrasound (5 MHz probe) on days 35 and 70 after breeding for detection of pregnancy. Plasma P4 concentration did not differ (p > 0.05) between treatments in all days, but it was increased (p < 0.05) in Saanen than in Alpine goats from days 13 to 45. Pregnancy and parturition rates, litter size and gestation period were similar (p > 0.05) to treatments and breeds. Results of this study indicate that human chorionic gonadotrophin (hCG) administration 5 days after breeding did not significantly alter reproductive performance in dairy nulliparous goats and that plasma P4 differed between Saanen and Alpine goats. MenosAbstract: The objective of this study was to investigate the effect of hCG administration 5 days after breeding on plasma progesterone (P4) concentration and reproductive performance of oestrousinduced nulliparous dairy goats. A total of 59 nulliparous goats (36 Alpine and 23 Saanen) received intravaginal sponges with 60 mg medroxyprogesterone acetate for 9 days plus 200 IU equine chorionic gonadotrophin (eCG) and 22.5 lg d-cloprostenol 24 h before sponge removal. After detection of oestrus (day of oestrus ¼ day 0) and breeding, 49 females were randomly assigned, according to the breed, into two treatments (T1 and T2). In T1 (n ¼ 25) and T2 (n ¼ 24), animals received intramuscular injection of 1 ml of saline solution (control) or 250 IU hCG, respectively, 5 days after breeding. Plasma P4 concentration (ng/ml) was determined from blood sampled on days 0, 5, 7, 13, 17, 21, 28 and 45 after breeding. Animals were scanned by transrectal ultrasound (5 MHz probe) on days 35 and 70 after breeding for detection of pregnancy. Plasma P4 concentration did not differ (p > 0.05) between treatments in all days, but it was increased (p < 0.05) in Saanen than in Alpine goats from days 13 to 45. Pregnancy and parturition rates, litter size and gestation period were similar (p > 0.05) to treatments and breeds. Results of this study indicate that human chorionic gonadotrophin (hCG) administration 5 days after breeding did not significantly alter reproductive performance in dairy nulliparous goa... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Caprino leiteiro; Estro; Goat; Gonadotropin; HCG; Induction; Oestrous cycle; Plasma progesterone concentration; Progestagen. |
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Thesagro: |
Cabra; Ciclo estral; Eficiência reprodutiva; Endocrinologia; Indução; Progesterona; Reprodução animal. |
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Thesaurus Nal: |
Animal reproduction; Brazil; Corpus luteum; Estrous cycle; Estrus synchronization. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02727naa a2200409 a 4500
001 1663699
005 2019-09-25
008 2005 bl uuuu u00u1 u #d
024 7 $a10.1111/j.1439-0531.2005.00612.x$2DOI
100 1 $aFONSECA, J. F. da
245 $aAdministration of hCG 5 days after breeding and reproductive performance in nulliparous dairy goats.$h[electronic resource]
260 $c2005
520 $aAbstract: The objective of this study was to investigate the effect of hCG administration 5 days after breeding on plasma progesterone (P4) concentration and reproductive performance of oestrousinduced nulliparous dairy goats. A total of 59 nulliparous goats (36 Alpine and 23 Saanen) received intravaginal sponges with 60 mg medroxyprogesterone acetate for 9 days plus 200 IU equine chorionic gonadotrophin (eCG) and 22.5 lg d-cloprostenol 24 h before sponge removal. After detection of oestrus (day of oestrus ¼ day 0) and breeding, 49 females were randomly assigned, according to the breed, into two treatments (T1 and T2). In T1 (n ¼ 25) and T2 (n ¼ 24), animals received intramuscular injection of 1 ml of saline solution (control) or 250 IU hCG, respectively, 5 days after breeding. Plasma P4 concentration (ng/ml) was determined from blood sampled on days 0, 5, 7, 13, 17, 21, 28 and 45 after breeding. Animals were scanned by transrectal ultrasound (5 MHz probe) on days 35 and 70 after breeding for detection of pregnancy. Plasma P4 concentration did not differ (p > 0.05) between treatments in all days, but it was increased (p < 0.05) in Saanen than in Alpine goats from days 13 to 45. Pregnancy and parturition rates, litter size and gestation period were similar (p > 0.05) to treatments and breeds. Results of this study indicate that human chorionic gonadotrophin (hCG) administration 5 days after breeding did not significantly alter reproductive performance in dairy nulliparous goats and that plasma P4 differed between Saanen and Alpine goats.
650 $aAnimal reproduction
650 $aBrazil
650 $aCorpus luteum
650 $aEstrous cycle
650 $aEstrus synchronization
650 $aCabra
650 $aCiclo estral
650 $aEficiência reprodutiva
650 $aEndocrinologia
650 $aIndução
650 $aProgesterona
650 $aReprodução animal
653 $aBrasil
653 $aCaprino leiteiro
653 $aEstro
653 $aGoat
653 $aGonadotropin
653 $aHCG
653 $aInduction
653 $aOestrous cycle
653 $aPlasma progesterone concentration
653 $aProgestagen
700 1 $aTORRES, C. A. A.
773 $tReproduction in Domestic Animals$gv. 40, n. 6, p. 495-499, 2005.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
04/09/2014 |
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Data da última atualização: |
23/05/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
LEISER, W. L.; RATTUNDE, H. F.; WELTZIEN, E.; CISSE, N.; ABDOU, M.; DIALLO, A.; TOURÈ, A. O.; MAGALHAES, J. V.; HAUSSMANN, B. I. G. |
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Afiliação: |
JURANDIR VIEIRA DE MAGALHAES, CNPMS. |
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Título: |
Two in one sweep: aluminum tolerance and grain yield in P-limited soils are associated to the same genomic region in West African Sorghum. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
BMC Plant Biology, v. 14, n. 206, p. 1-13, 2014. |
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DOI: |
10.1186/s12870-014-0206-6 |
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Idioma: |
Inglês |
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Conteúdo: |
Background: Sorghum (Sorghum bicolor L. Moench) productivity is severely impeded by low phosphorus (P) and aluminum (Al) toxic soils in sub-Saharan Africa and especially West Africa (WA). Improving productivity of this staple crop under these harsh conditions is crucial to improve food security and farmer’s incomes in WA. Results: This is the first study to examine the genetics underlying sorghum adaptation to phosphorus limitation in a wide range of WA growing conditions. A set of 187 diverse sorghum genotypes were grown in 29–P and + P field experiments from 2006-2012 in three WA countries. Sorghum grain yield performance under–Pand+P conditions was highly correlated (r = 0.85***). Significant genotype-by-phosphorus interaction was detected but with small magnitude compared to the genotype variance component. We observed high genetic diversity within our panel, with rapid linkage disequilibrium decay, confirming recent sequence based studies in sorghum. Using genome wide association mapping based on 220 934 SNPs we identified one genomic region on chromosome 3 that was highly associated to grain yield production. A major Al-tolerance gene in sorghum, SbMATE, was collocated in this region and SbMATE specific SNPs showed very high associations to grain yield production, especially under–P conditions, explaining up to 16% of the genotypic variance. Conclusion: The results suggest that SbMATE has a possible pleiotropic role in providing tolerance to two of the most serious abiotic stresses for sorghum in WA, Al toxicity and P deficiency. The identified SNPs can help accelerate breeding for increased sorghum productivity under unfavorable soil conditions and contribute to assuring food security in WA. MenosBackground: Sorghum (Sorghum bicolor L. Moench) productivity is severely impeded by low phosphorus (P) and aluminum (Al) toxic soils in sub-Saharan Africa and especially West Africa (WA). Improving productivity of this staple crop under these harsh conditions is crucial to improve food security and farmer’s incomes in WA. Results: This is the first study to examine the genetics underlying sorghum adaptation to phosphorus limitation in a wide range of WA growing conditions. A set of 187 diverse sorghum genotypes were grown in 29–P and + P field experiments from 2006-2012 in three WA countries. Sorghum grain yield performance under–Pand+P conditions was highly correlated (r = 0.85***). Significant genotype-by-phosphorus interaction was detected but with small magnitude compared to the genotype variance component. We observed high genetic diversity within our panel, with rapid linkage disequilibrium decay, confirming recent sequence based studies in sorghum. Using genome wide association mapping based on 220 934 SNPs we identified one genomic region on chromosome 3 that was highly associated to grain yield production. A major Al-tolerance gene in sorghum, SbMATE, was collocated in this region and SbMATE specific SNPs showed very high associations to grain yield production, especially under–P conditions, explaining up to 16% of the genotypic variance. Conclusion: The results suggest that SbMATE has a possible pleiotropic role in providing tolerance to two of the most serious abi... Mostrar Tudo |
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Palavras-Chave: |
Melhoramento genético. |
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Thesagro: |
Alumínio; Fósforo; Sorghum bicolor; Sorgo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02598naa a2200289 a 4500
001 1994256
005 2017-05-23
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1186/s12870-014-0206-6$2DOI
100 1 $aLEISER, W. L.
245 $aTwo in one sweep$baluminum tolerance and grain yield in P-limited soils are associated to the same genomic region in West African Sorghum.$h[electronic resource]
260 $c2014
520 $aBackground: Sorghum (Sorghum bicolor L. Moench) productivity is severely impeded by low phosphorus (P) and aluminum (Al) toxic soils in sub-Saharan Africa and especially West Africa (WA). Improving productivity of this staple crop under these harsh conditions is crucial to improve food security and farmer’s incomes in WA. Results: This is the first study to examine the genetics underlying sorghum adaptation to phosphorus limitation in a wide range of WA growing conditions. A set of 187 diverse sorghum genotypes were grown in 29–P and + P field experiments from 2006-2012 in three WA countries. Sorghum grain yield performance under–Pand+P conditions was highly correlated (r = 0.85***). Significant genotype-by-phosphorus interaction was detected but with small magnitude compared to the genotype variance component. We observed high genetic diversity within our panel, with rapid linkage disequilibrium decay, confirming recent sequence based studies in sorghum. Using genome wide association mapping based on 220 934 SNPs we identified one genomic region on chromosome 3 that was highly associated to grain yield production. A major Al-tolerance gene in sorghum, SbMATE, was collocated in this region and SbMATE specific SNPs showed very high associations to grain yield production, especially under–P conditions, explaining up to 16% of the genotypic variance. Conclusion: The results suggest that SbMATE has a possible pleiotropic role in providing tolerance to two of the most serious abiotic stresses for sorghum in WA, Al toxicity and P deficiency. The identified SNPs can help accelerate breeding for increased sorghum productivity under unfavorable soil conditions and contribute to assuring food security in WA.
650 $aAlumínio
650 $aFósforo
650 $aSorghum bicolor
650 $aSorgo
653 $aMelhoramento genético
700 1 $aRATTUNDE, H. F.
700 1 $aWELTZIEN, E.
700 1 $aCISSE, N.
700 1 $aABDOU, M.
700 1 $aDIALLO, A.
700 1 $aTOURÈ, A. O.
700 1 $aMAGALHAES, J. V.
700 1 $aHAUSSMANN, B. I. G.
773 $tBMC Plant Biology$gv. 14, n. 206, p. 1-13, 2014.
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Embrapa Milho e Sorgo (CNPMS) |
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