Szukana fraza: [Opis = "In the females of Citellus citellus \(Linnaeus, 1758\) the RMR values are increased by 18% during the 1st and 2nd week of lactation, and afterwards they decrease so that in the 4th\-5th week of lactation they are even lower than the adult ones. During the first 5 weeks of life, the individuals of show increased RMR values which gradually decrease and by the 13th week reach values close to those of the adults."]