Consulta: creatorFacets:"Carvalho,L.E."
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Data/hora: 10/06/2024 09:25:01

Optimizing the transport of porcine semen: a proposal for Brazil
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Silva,C.L.Á.; Silva Filho,J.M.; Palhares,M.S.; Machado,G.S.; Moraes,M.P.; Rocha,N.M.; Carvalho,L.E.; Rossi,R.
Semen from the first 15mL of the ejaculate (P1) obtained from two boars (30mL) was diluted in glycine-egg yolk extender, cooled at 5°C in a special container and rediluted in standard doses of 3x109 mobile spermatozoa after 12h of storage. Semen was also stored up to 24h after redilution. The physical characteristics of the semen were evaluated at different storage periods (fresh, 0h, 12h, rediluted, 24h, and 36h). The reproductive performance of the boars and their fertility regarding the insemination of primiparous sows were also determined. Two treatments were used: T1-15B sows inseminated with semen originated from hyperconcentrated heterospermic doses (15x109 mobile spermatozoa per dose), rediluted after 12h of storage at 5°C for standard doses of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Swine; Fractioned collection; Cooling; Transport.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000200327

Physical and morphological characteristics of the first three jets of Pêga jackasses sperm-rich fraction
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Carvalho,L.E.; Silva Filho,J.M.; Palhares,M.S.; Sales,A.L.R.; Gonczarowska,A.T.; Oliveira,H.N.; Resende,M.; Rossi,R.
ABSTRACT The first three jets of the sperm-rich fraction of Pêga jackasses were collected and assessed separately. Five fertile Pêga jackasses were used as semen donors and underwent fractionated semen collection, using an open model artificial vagina. The first three jets of the semen were collected separately and assessed for volume, sperm motility, vigor, concentration/mL of semen, and sperm morphology. These characteristics were compared between first, second and third jets and between jackasses. It was observed that the jet volume differed (P&lt;0.05) between jackasses, although it was similar (P&gt;0.05) between first, second and third jets. Sperm motility did not differ (P&gt;0.05) between jets and jackasses. Vigor was similar (P&gt;0.05) between...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jackass; Fractionated ejaculate; Jets; Sperm-rich fraction.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000400845

Efeito do tipo de envase, flatpacks ou palhetas, sobre a criopreservação da fração rica do sêmen asinino
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Sales,A.L.R.; Gonczarowska,A.T.; Carvalho,L.E.; Palhares,M.S.; Rossi,R.; Silva Filho,J.M.
Com o objetivo de se estudar o efeito do tipo de envase sobre a criopreservação do sêmen asinino, coletado de forma fracionada, utilizou-se o sêmen de cinco jumentos da raça Pêga, submetido a um protocolo de congelamento envolvendo um diluidor e duas formas de envase, flatpacks ou palhetas de 0,55mL, tendo como ponto final a avaliação dos parâmetros seminais in vitro após o descongelamento do sêmen. Os resultados de motilidade espermática para as amostras envasadas em flatpacks ou em palhetas foram de 24,67% e 35,34%, no momento do descongelamento; de 13,39% e 25,83%, 60 minutos após o descongelamento; e de 7,86% e 13,33%, aos 120 minutos após o descongelamento, respectivamente. Já os valores para o vigor espermático foram de 2,55 e 3,33, no momento do...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jumento; Coleta fracionada; Sêmen congelado; Flatpacks; Palhetas.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000401016

Physical characteristics and fertility of fractionated donkey semen cooled at 5°C
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Carvalho,L.E.; Silva Filho,J.M.; Palhares,M.S.; Sales,A.L.R.; Gonczarowska,A.T.; Oliveira,H.N.; Resende,M.C.; Neves,M.G.; Madison,R.J.
ABSTRACT The aim of this study was to evaluate the effect of two different extenders (Skimmed Milk Glucose - SMG or Lactose - Egg Yolk - LEY) on physical characteristics and fertility of fractionated donkey semen cooled at 5°C. For this, four Pêga donkeys were used as semen donors. The sperm rich fraction of the ejaculate was diluted preparing insemination doses containing 400 x 106 motile spermatozoa in a volume of 22 mL, cooled to 5°C and stored up to 48 hours in a container proposed by Palhares (1997). Sperm motility and vigor were assessed in fresh semen, after first semen dilution, before insemination, at 24 and 48 hours after storage. For the fertility evaluation, 44 mares were inseminated with semen stored for a period between 12 and 24 hours. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Donkey; Fractionated collection; Cooled semen; Fertility.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000100029

Reproductive biology of Pêga Jackasses: characteristics of sperm-rich fraction collected using the split-ejaculate method
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Carvalho,L.E.; Silva Filho,J.M.; Palhares,M.S.; Sales,A.L.R.; Gonczarowska,A.T.; Oliveira,H.N.; Resende Jr.,T.; Rossi,R.
ABSTRACT The aim of this study was to evaluate the physical and morphological characteristics of the sperm-rich fraction of jackass semen. To this end, 130 ejaculates from five Pêga jackasses were collected using an open model artificial vagina. The sperm-rich fraction was collected using the split-ejaculate method and assessed for the number of mounts/ejaculate, for physical and morphological characteristics of the semen and number of doses produced/ejaculate. It was observed that all characteristics evaluated differed among the five jackasses, except for the head defect rates. The mean values obtained for the jackass sperm-rich fraction collected were: number of mounts/ejaculate - 1.27; semen volume - 20.21mL; motility - 84.53%; vigor - 4.46; motility...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jackass; Split-ejaculate method; Sperm-rich fraction.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000400832

Níveis de inclusão do farelo de arroz parboilizado em rações para leitões na fase de creche
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Aquino,T.M.F.; Watanabe,P.H.; Carvalho,L.E.; Freitas,E.R.; Nepomuceno,R.C.; Oliveira,E.L.; Gomes,T.R.; Ellery,E.A.C.; Santos,K.M.; Pereira,A.S.; Aguiar,G.C.
Foram conduzidos dois ensaios para avaliar a utilização do farelo do farelo integral de arroz parboilizado (FIAP) em rações para leitões na fase de creche. No primeiro, foram utilizados 14 suínos machos castrados para a avaliação nutricional do ingrediente em ensaio de digestibilidade. O delineamento experimental foi o inteiramente ao acaso, com dois tratamentos e sete repetições por tratamento. O FIAP apresenta 17,15% de PB, elevado teor em fibras (33,75% de FDN e 15,91% de FDA) e teor reduzido de energia metabolizável, próximo a 2320kcal/kg. No segundo experimento, foram utilizados 60 leitões machos castrados, com o objetivo de avaliar o desempenho zootécnico, a ocorrência de diarreia e a viabilidade econômica do farelo de arroz parboilizado. O...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Análise econômica; Desempenho; Ocorrência de diarreia; Subproduto do arroz; Suínos.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000501531