Mice Selected for Age of Puberty: Reverse Selection and Reproductive Characteristics
نویسندگان
چکیده
منابع مشابه
Reproductive tract development and puberty in two lines of Nellore heifers selected for postweaning weight.
The objective was to evaluate reproductive tract development (ovary and uterus) and onset of puberty in two lines of Nellore heifers (Bos indicus) selected for postweaning weight. A total of 123 heifers, including 46 from the control Nellore line (NeC) and 77 from the selection Nellore line (NeS) were used. Every 18 to 21 days from 12 to 24 months of age, average ovarian area (OVA), endometrial...
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The reproductive efficiency of the entire sheep flock could be improved if ewe lambs go through puberty early and produce their first lamb at 1 year of age. The onset of puberty is linked to the attainment of critical body mass, and therefore we tested whether it would be influenced by genetic selection for growth rate or for rate of accumulation of muscle or fat. We studied 136 Merino ewe lamb...
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Background & Objective: Fennel, as an edible plant, and due to its estrogenic compounds, has widely been used as a therapeutic agent for centuries. In this study, the effects of neonatal exposure to fennel alcoholic extract (FAE), on the onset of puberty, estrus cycle, ovaries, and lordosis were investigated. Materials & Methods: In this experimental study, 48 female BALB/c pups were divid...
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ژورنال
عنوان ژورنال: Biology of Reproduction
سال: 1983
ISSN: 0006-3363,1529-7268
DOI: 10.1095/biolreprod28.4.843