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| Vargas Júnior,Sergio Farias; Costa,Vitória Gasperin Guazzelli; Oliveira,Fernando Caetano de; Goularte,Karina Lemos; Haas,Cristina Sangoi; Gasperin,Bernardo Garziera; Lucia Júnior,Thomaz. |
| Abstract: 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Infertility; Insemination; Intrafollicular artificial insemination; Spermatozoa. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000700866 |
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| Corrêa,Érico Kunde; Bianchi,Ivan; Ulguim,Rafael da Rosa; Corrêa,Marcio Nunes; Gil-Turnes,Carlos; Lucia Júnior,Thomaz. |
| Deep litter systems represent low cost alternatives to raise growing-finishing pigs, reducing slurry accumulation, although pig's thermal comfort may be negatively affected by the heat produced inside the litter. This study compared environmental and performance parameters for growing-finishing pigs raised on deep litter systems having distinct depths and on solid floor. The experiment was conducted in a region of temperate climate of Brazil, comparing three treatments: litter having rice husk 0.5m (T1); and 0.25m deep (T2); and solid concrete floor (T3). The first litter was used in two lots and replaced by a second litter used in other two lots, during 52 weeks. Each lot included five pigs in a 7m² pen, from 60 to 145 d of age. Environmental parameters... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Deep litter systems; Environmental comfort; Growing-finishing; Swine. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000300031 |
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| Bianchi,Ivan; Calderam,Kérlin; Maschio,Éder Francisco; Madeira,Elisângela Mirapalheta; Ulguim,Rafael da Rosa; Rambo,Gissele; Corrêa,Érico Kunde; Lucia Júnior,Thomaz; Deschamps,João Carlos; Corrêa,Marcio Nunes. |
| Este estudo teve por objetivo avaliar o uso da dimetilacetamida (DMA) e de glicerol na criopreservação de sêmen suíno sobre as taxas de concepção e fertilização in vivo, utilizando o método de inseminação artificial pós-cervical. Foram sincronizadas 60 leitoas pré-púberes e inseminadas com o uso de sêmen congelado com glicerol 3% (30 fêmeas) e DMA 5% (30 fêmeas). O método de inseminação utilizado foi o pós-cervical, com concentração de 1 x 10(9) espermatozóides vivos por dose. Após 36 a 40h da inseminação, as fêmeas foram abatidas, sendo realizada a contagem de corpos hemorrágicos (CH) nos ovários. Foi realizada a lavagem dos ovidutos das fêmeas, verificando o número de estruturas recuperadas (oócitos e embriões), calculando-se as taxas de concepção e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Inseminação artificial; Congelamento; Amidas; Glicerol; Suínos. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000700028 |
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