| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Unidades Centrais. |
|
Data corrente: |
18/10/2018 |
|
Data da última atualização: |
23/09/2019 |
|
Autoria: |
VARGAS JÚNIOR, S. F.; COSTA, V. G. G.; OLIVEIRA, F. C. de; GOULARTE, K. L.; HAAS, C. S.; GASPERIN, B. G.; LUCIA JÚNIOR, T. |
|
Afiliação: |
Sergio Farias Vargas Júnior; Vitória Gasperin Guazzelli Costa; Fernando Caetano de Oliveira; Karina Lemos Goularte; Cristina Sangoi Haas; Bernardo Garziera Gasperin; Thomaz Lucia Júnior. |
|
Título: |
Bovine sperm cell motility after incubation in follicular fluid; |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 7, p. 866-869, July, 2018. |
|
Idioma: |
Inglês |
|
Notas: |
Scientific Notes.
Título em português: Motilidade de espermatozoides bovinos após incubação em fluído folicular. |
|
Conteúdo: |
The objective of this work was to evaluate sperm cell motility after intrafollicular artificial insemination (IFAI) in vivo or after incubation in follicular fluid in vitro. In the in vivo experiment, IFAI was performed, followed by the recovery of follicular content 1 to 4 hours later, in order to assess sperm motility. In the in vitro experiment, spermatozoa from a pool of commercial frozen-thawed semen were evaluated for their kinetics after incubation for 1 or 3 hours, either pure (pool, control group) or in follicular fluid (FF). A low motility of sperm cells was observed in the FF samples, both in vitro and in vivo. In vitro, the main parameters negatively affected in the sperm cells incubated in FF, compared with the control, were: total motility (TM), progressive motility (PM), curvilinear distance, and straightness, after 1 hour of incubation; and TM, PM, average path velocity, and curvilinear velocity after 3 hours of incubation. The ovarian follicle and follicular fluid do not provide a suitable environment to maintain bovine sperm cell motility. |
|
Palavras-Chave: |
Infertilidade; Infertility; Inseminação artificial intrafolicular; Intrafollicular artificial insemination. |
|
Thesagro: |
Espermatozóide; Inseminação; Inseminação Artificial. |
|
Thesaurus Nal: |
Insemination; Spermatozoa. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/184606/1/Bovine-sperm-cell-motility.pdf
|
|
Marc: |
LEADER 02136naa a2200313 a 4500
001 2097701
005 2019-09-23
008 2018 bl uuuu u00u1 u #d
100 1 $aVARGAS JÚNIOR, S. F.
245 $aBovine sperm cell motility after incubation in follicular fluid;$h[electronic resource]
260 $c2018
500 $aScientific Notes. Título em português: Motilidade de espermatozoides bovinos após incubação em fluído folicular.
520 $aThe objective of this work was to evaluate sperm cell motility after intrafollicular artificial insemination (IFAI) in vivo or after incubation in follicular fluid in vitro. In the in vivo experiment, IFAI was performed, followed by the recovery of follicular content 1 to 4 hours later, in order to assess sperm motility. In the in vitro experiment, spermatozoa from a pool of commercial frozen-thawed semen were evaluated for their kinetics after incubation for 1 or 3 hours, either pure (pool, control group) or in follicular fluid (FF). A low motility of sperm cells was observed in the FF samples, both in vitro and in vivo. In vitro, the main parameters negatively affected in the sperm cells incubated in FF, compared with the control, were: total motility (TM), progressive motility (PM), curvilinear distance, and straightness, after 1 hour of incubation; and TM, PM, average path velocity, and curvilinear velocity after 3 hours of incubation. The ovarian follicle and follicular fluid do not provide a suitable environment to maintain bovine sperm cell motility.
650 $aInsemination
650 $aSpermatozoa
650 $aEspermatozóide
650 $aInseminação
650 $aInseminação Artificial
653 $aInfertilidade
653 $aInfertility
653 $aInseminação artificial intrafolicular
653 $aIntrafollicular artificial insemination
700 1 $aCOSTA, V. G. G.
700 1 $aOLIVEIRA, F. C. de
700 1 $aGOULARTE, K. L.
700 1 $aHAAS, C. S.
700 1 $aGASPERIN, B. G.
700 1 $aLUCIA JÚNIOR, T.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 53, n. 7, p. 866-869, July, 2018.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Gado de Corte. |
|
Data corrente: |
12/12/2022 |
|
Data da última atualização: |
14/12/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
EUCLIDES, V. P. B.; MONTAGNER, D. B.; ARAUJO, A. R. de; PEREIRA, M. de A.; DIFANTE, G. dos S.; ARAÚJO, I. M. M. de; BARBOSA, L. F.; BARBOSA, R. A.; GURGEL, A. L. C. |
|
Afiliação: |
VALERIA PACHECO BATISTA EUCLIDES, CNPGC; DENISE BAPTAGLIN MONTAGNER, CNPGC; ALEXANDRE ROMEIRO DE ARAUJO, CNPGC; MARIANA DE ARAGAO PEREIRA, CNPGC; GELSON DOS SANTOS DIFANTE, UNIVERSIDSDE FEDERAL DE MATO GROSSO DO SUL; ITÂNIA MARIA MEDEIROS DE ARAÚJO, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; LEANDRO FRANCISCO BARBOSA, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS; RODRIGO AMORIM BARBOSA, CNPGC; ANTONIO LEANDRO CHAVES GURGEL, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL. |
|
Título: |
Biological and economic responses to increasing nitrogen rates in Mombaça guinea grass pastures. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
Scientific Reports, v. 12, article 1937, 2022. |
|
DOI: |
https://doi.org/10.1038/s41598-022-05796-6 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Nitrogen fertilization has been recognized as an essential tool towards the establishment of sustainable intensification of pasture-based livestock systems using tropical perennial grasses if, for a given ecosystem it is capable of increasing forage growth, stocking rates and animal performance. This study assessed pasture growth traits, nutritive value, animal and economic responses of Panicum maximum cv. Mombaça guinea grass pastures subjected to different levels of N fertilization (100 (N100), 200 (N200), and 300 (N300) kg N ha-¹ yr-¹). Pastures were managed under rotational stocking to maintain similar pre (80-90 cm) and post-grazing (45 cm) canopy heights. A partial budget and a Benefit-Cost Analysis were used to assess the economic returns on increasing N fertilization. N300 resulted in greater post-grazing herbage mass. A slightly higher neutral fiber and acid lignin detergent was observed at N100 (P < 0.05); crude protein increased linearly, and in vitro digestible organic matter reached maximum value at 265.4 kg N ha-¹ yr-¹. Annual averages of animal weight gain were 515, 590 and 660 g d-¹, respectively, for N100, N200 and N300. There was a decrease from 3.7 to 1.9 kg of body weight gain per kg of additional N applied when increasing N rates from 100 to 200 and from 100 to 300 kg ha-¹. The net profit improved with increasing N levels, but at reducing rates, reaching its maximum at the N300 level. The change from 100 to 200 kg N ha-¹ presented the best return, with USD 3.73 for each additional dollar invested, while the change from 200 kg N ha-¹ to 300 kg N ha-¹ was economically less than optimal, recouping only USD 1.60 for each dollar. The N300 rate presented the highest net profit per hectare (accounting profit), even in a pessimist scenario (25% reduction in production). Despite being profitable, the N300 rate was less than optimal from an economic standpoint, since an additional 100 kg of Nitrogen ha-¹ to change from N200 to N300 level reduced both the net returns and the Benefit-Cost ratio. Our results suggest that the economically optimal level of N fertilization for Mombaça guinea grass pasture should be between 200 and 300 kg ha-¹. MenosNitrogen fertilization has been recognized as an essential tool towards the establishment of sustainable intensification of pasture-based livestock systems using tropical perennial grasses if, for a given ecosystem it is capable of increasing forage growth, stocking rates and animal performance. This study assessed pasture growth traits, nutritive value, animal and economic responses of Panicum maximum cv. Mombaça guinea grass pastures subjected to different levels of N fertilization (100 (N100), 200 (N200), and 300 (N300) kg N ha-¹ yr-¹). Pastures were managed under rotational stocking to maintain similar pre (80-90 cm) and post-grazing (45 cm) canopy heights. A partial budget and a Benefit-Cost Analysis were used to assess the economic returns on increasing N fertilization. N300 resulted in greater post-grazing herbage mass. A slightly higher neutral fiber and acid lignin detergent was observed at N100 (P < 0.05); crude protein increased linearly, and in vitro digestible organic matter reached maximum value at 265.4 kg N ha-¹ yr-¹. Annual averages of animal weight gain were 515, 590 and 660 g d-¹, respectively, for N100, N200 and N300. There was a decrease from 3.7 to 1.9 kg of body weight gain per kg of additional N applied when increasing N rates from 100 to 200 and from 100 to 300 kg ha-¹. The net profit improved with increasing N levels, but at reducing rates, reaching its maximum at the N300 level. The change from 100 to 200 kg N ha-¹ presented the best return, with U... Mostrar Tudo |
|
Thesagro: |
Gramínea Forrageira; Matéria Orgânica; Panicum Maximum. |
|
Thesaurus NAL: |
Crude protein; Grasses; Organic matter; Pastures. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1149533/1/Biological-economic-responses-2022.pdf
|
|
Marc: |
LEADER 03141naa a2200313 a 4500
001 2149533
005 2022-12-14
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1038/s41598-022-05796-6$2DOI
100 1 $aEUCLIDES, V. P. B.
245 $aBiological and economic responses to increasing nitrogen rates in Mombaça guinea grass pastures.$h[electronic resource]
260 $c2022
520 $aNitrogen fertilization has been recognized as an essential tool towards the establishment of sustainable intensification of pasture-based livestock systems using tropical perennial grasses if, for a given ecosystem it is capable of increasing forage growth, stocking rates and animal performance. This study assessed pasture growth traits, nutritive value, animal and economic responses of Panicum maximum cv. Mombaça guinea grass pastures subjected to different levels of N fertilization (100 (N100), 200 (N200), and 300 (N300) kg N ha-¹ yr-¹). Pastures were managed under rotational stocking to maintain similar pre (80-90 cm) and post-grazing (45 cm) canopy heights. A partial budget and a Benefit-Cost Analysis were used to assess the economic returns on increasing N fertilization. N300 resulted in greater post-grazing herbage mass. A slightly higher neutral fiber and acid lignin detergent was observed at N100 (P < 0.05); crude protein increased linearly, and in vitro digestible organic matter reached maximum value at 265.4 kg N ha-¹ yr-¹. Annual averages of animal weight gain were 515, 590 and 660 g d-¹, respectively, for N100, N200 and N300. There was a decrease from 3.7 to 1.9 kg of body weight gain per kg of additional N applied when increasing N rates from 100 to 200 and from 100 to 300 kg ha-¹. The net profit improved with increasing N levels, but at reducing rates, reaching its maximum at the N300 level. The change from 100 to 200 kg N ha-¹ presented the best return, with USD 3.73 for each additional dollar invested, while the change from 200 kg N ha-¹ to 300 kg N ha-¹ was economically less than optimal, recouping only USD 1.60 for each dollar. The N300 rate presented the highest net profit per hectare (accounting profit), even in a pessimist scenario (25% reduction in production). Despite being profitable, the N300 rate was less than optimal from an economic standpoint, since an additional 100 kg of Nitrogen ha-¹ to change from N200 to N300 level reduced both the net returns and the Benefit-Cost ratio. Our results suggest that the economically optimal level of N fertilization for Mombaça guinea grass pasture should be between 200 and 300 kg ha-¹.
650 $aCrude protein
650 $aGrasses
650 $aOrganic matter
650 $aPastures
650 $aGramínea Forrageira
650 $aMatéria Orgânica
650 $aPanicum Maximum
700 1 $aMONTAGNER, D. B.
700 1 $aARAUJO, A. R. de
700 1 $aPEREIRA, M. de A.
700 1 $aDIFANTE, G. dos S.
700 1 $aARAÚJO, I. M. M. de
700 1 $aBARBOSA, L. F.
700 1 $aBARBOSA, R. A.
700 1 $aGURGEL, A. L. C.
773 $tScientific Reports$gv. 12, article 1937, 2022.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Corte (CNPGC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
