title: Systems for collection of urine in the captive common marmoset, Callithrix jacchus.
abstract: Two systems are described for the collection of 24 h urine samples from the common marmoset (Callithrix jacchus). Using 84 adult animals, 1210 24-h samples were collected. Mean urinary excretion was 14.4 +/- 7.5 ml/24 h (n = 1210, mean +/- SD). No differences were observed between sexes (for 52 females, 24 h volume = 15.1 +/- 8.0 ml; for 32 males, 24 h volume = 12.5 +/- 6.0 ml). No significant differences were observed between pregnant and non-pregnant females with respect to 24 h urine volume, and bilateral gonadectomy did not influence subsequent urinary excretion in either sex. For 161 pairs of observations, the intake of drinking water (11.7 +/- 10.2 ml/24 h) and the volume of urine excreted (12.6 +/- 7.1 ml/24 h) showed a positive correlation (r = 0.406 d.f. 159, P less than 0.001: y = 0.558x + 4.247).
authors.affiliation: MRC Reproductive Biology Unit, Centre for Reproductive Biology, Edinburgh, UK.
authors.forename: S F
authors.initials: SF
authors.lastname: Lunn
mesh_terms: D000818:Animals; D000830:Animals, Laboratory; D002144:Callithrix / Q000652:urine*; D002143:Callitrichinae / Q000652:urine*; D002940:Circadian Rhythm; D005260:Female; D008297:Male; D009919:Orchiectomy / Q000662:veterinary; D010052:Ovariectomy / Q000662:veterinary; D011247:Pregnancy; D013048:Specimen Handling / Q000379:methods / Q000662:veterinary*; D014556:Urine / Q000032:analysis*