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Cortisol, triiodothyronine (T3), thyroxine (T4), insulin, and glucose responses to thyrotropin-releasing hormone (TRH) were evaluated in 12 healthy, mature horses and in 7 horses and 4 ponies with… (More)
Adult horses showed a mild diurnal variation in equine plasma thyroxine (T4) concentrations, but not triiodothyronine (T3). Plasma T4 concentrations tended to be higher between 5 PM and 8 PM than at… (More)
In this work, we have completed a study of the development of the ovoviviparous lizard Liolaemus tenuis tenuis. Ovoviviparity in this lizard is a condition in which eggs are retained within the… (More)
Cadmium chloride, zinc chloride, or a mixture of the two, labeled with 115m-Cd or 65-Zn was administered intraperitoneally to Wistar rats on day 9 of gestation. On day 20 fetuses of Cd-treated rats… (More)
Este trabajo tiene como proposito determinar si la metodologia propuesta por el comite de expertos FAO-OMS-UNU en 1985 para la estimacion de las necesidades de energia es factible de ser aplicada… (More)
The i n t e r a c t i o n o f z i n c and cadmium was s t u d i e d i n pregnant r a t s and t h e i r f e t u s e s . Four e x p e r i mental groups of animals were used, with each group being given… (More)