Richard Wilen

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Sprague-Dawley rats were fed Purina Lab Chow with or without propylthiouracil (PTU), 0.001%, 0.01% or 0.1% PTU, ad libitum from weaning to vaginal opening. Mean values for all pubertal measurements are included in Tables 1 and 2. Growth rate (mean +/- S.E.) was significantly reduced (Neuman-Keuls test; P less than 0.05 level) in all PTU-fed rats (controls(More)
Pubertal age, food intake, body length, weight, and composition were determined by direct measurements in 29 well fed female rats studied from birth to first estrus. The average birth and weaning weights of the 12 early maturing rats were 6.99 +/- 0.13 g and 50.13 +/- 1.16 g, respectively, and did not differ significantly from those of the 11 late maturers(More)
From February 1972 to August 1974 ten immatureCebus albifrons monkeys were weighed and vaginal swabbing performed at monthly or shorter intervals to determine age and weight at the onset of puberty. The average weight (±S.E.M.) at birth and at puberty was 226±5.8 g and 1,617±32.45 g, respectively. The average age at puberty was 3.59±0.17 years. The average(More)
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