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Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive Ciência Rural
Freling,Gabriel Fernando; Gasperin,Bernardo Garziera; Ferreira,Rogério; Cesaro,Matheus Pedroti; Oliveira,João Francisco; Bordignon,Vilceu; Gonçalves,Paulo Bayard Dias.
The objective of this study was to evaluate the efficiency of progestagen intravaginal devices (IVDs) in preventing parturition in sows by determining the effect of delaying parturition on the alive/total born piglets ratio. Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed they were not effective in delaying parturition at any dosage tested. In a second experiment, seventy-five sows at day 112 of pregnancy were equally distributed (n=15 per group) in the following treatments: prostaglandin (PGF2α; 250µg sodium cloprostenol; control group) or PGF2α and simultaneous insertion of an IVD containing medroxyprogesterone acetate (MPA) for 48h. Control sows initiated labor 27.7±1.6h after PGF2α injection. The mean time (±SEM) between PGF2α...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Programmed farrowing; Alive/total born piglets ratio; Medroxyprogesterone acetate.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000700018
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