Search Results - "HUCK, U. W"

Effects of age and parity on litter size and offspring sex ratio in golden hamsters (Mesocricetus auratus) by Huck, U W, Pratt, N C, Labov, J B, Lisk, R D

“…Golden hamsters that were mated repeatedly from 55 days of age produced 6–12 litters. Litter size at birth rose between the 1st and 2nd litters, peaked on the…”
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Food restricting young hamsters (Mesocricetus auratus) affects sex ratio and growth of subsequent offspring by HUCK, U. W, LABOV, J. B, LISK, R. D

“…Trivers and Willard (1973) predicted that stressed adult female mammals may enhance their fitness by skewing offspring sex ratios and maternal investment to…”
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Food-restricting first generation juvenile female hamsters (Mesocricetus auratus) affects sex ratio and growth of third generation offspring by HUCK, U. W, LABOV, J. B, LISK, R. D

“…Female hamsters (Generation 1) were fed ad libitum or were food-restricted to 65-75% of the amount consumed by controls during their first 50 days of life…”
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Litter Sex Ratios in the Golden Hamster Vary with Time of Mating and Litter Size and Are Not Binomially Distributed by Huck, U. William, Seger, Jon, Lisk, Robert D.

“…Pregnancy rates, litter sizes, and litter sex ratios vary strongly with the time in the estrous cycle at which female golden hamsters (Mesocricetus auratus)…”
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Sex Ratio Manipulation and Decreased Growth of Male Offspring of Undernourished Golden Hamsters (Mesocricetus auratus) by Labov, Jay B., Huck, U. William, Prabha Vaswani, Lisk, Robert D.

“…The theory that female mammals in poor condition may increase individual fitness by skewing the sex ratio of their offspring toward daughters and by investing…”
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Pregnancy block in laboratory mice as a function of male social status by Huck, U W

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Stimulus requirements for pregnancy initiation in the golden hamster (Mesocricetus auratus) change with age and parity by Huck, U W, Lisk, R D, Guyton, C L

“…Hamsters were mated repeatedly at 60, 180, 300 and 420 days of age or once during their lifetime at one of these ages. Copulatory stimulation was varied both…”
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Stimulus requirements for pregnancy initiation in the golden hamster (Mesocricetus auratus) change with time of mating during the receptive period by Huck, U W, Lisk, R D, Thierjung, C

“…When maintained under a 14L:10D photoperiod, the duration of behavioural receptivity in female golden hamsters was about 18-21 h depending on age and/or…”
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Influence of pre- and post-copulatory pair contact on pregnancy success in Djungarian hamsters, Phodopus campbelli by Wynne-Edwards, K E, Huck, U W, Lisk, R D

“…Females housed with their mates for 3 or 4 days before mating took place (i.e. early in the oestrous cycle at the time of introduction to the mate) were…”
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Scent marking and mate choice in the golden hamster by Huck, U W, Lisk, R D, Gore, A C

“…Test groups consisting of three males and one female were adapted to home areas within a 244 X 122 cm enclosure for a 4-day period. Subsequently, agonistic…”
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Social dominance and reproductive success in pregnant and lactating golden hamsters (Mesocricetus auratus) under seminatural conditions by Huck, U W, Lisk, R D, McKay, M V

“…Pairs of female hamsters were acclimated to seminatural enclosures and permitted to interact for brief periods on days 12-14 of gestation or on days 2-4 of…”
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Social olfaction in male brown lemmings (Lemmus sibiricus = ^Itrimucronatus^R) and collared lemmings (^IDicrostonyx groenlandicus^R): I. Discrimination of species, sex, and estrous condition by Huck, U. William, Banks, Edwin M

“…Five experiments were conducted with 196 collared and 243 brown male lemmings. When tested in a Y-maze olfactometer, sexually experienced and naive Ss of both…”
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Mate Choice, Mate Guarding and Other Mating Tactics in Golden Hamsters Maintained Under Seminatural Conditions by Lisk, Robert D, Huck, U. William, Gore, Andrea C, Armstrong, Michael X

“…Abstract Female hamsters freely interacting with a triad of males which had established a dominance hierarchy mated first and received more ejaculates from the…”
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Effect of the Interintromission Interval on Lordotic Response and Attack Latency in Golden Hamsters (Mesocricetus auratus ) by Huck, U. William, Lisk, Robert D, Parente, Eric J

“…After 12-15 ejaculatory series, each consisting of several short intromissions (2- to 3-s vaginal penetration) and an ejaculation, male golden hamsters adopt…”
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Progesterone levels and socially-induced implantation failure and fetal resorption in golden hamsters (Mesocricetus auratus) by Huck, U W, Lisk, R D, Miller, K S, Bethel, A

“…Levels of circulating progesterone (P) were significantly reduced in socially subordinate female golden hamsters following brief exposures to another female…”
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Determinants of Mating Success in the Golden Hamster (Mesocricetus auratus ): I. Male Capacity by Huck, U. William, Lisk, Robert D

“…Rested adult golden hamsters produced a mean of 13 ejaculations and then showed a modified copulatory pattern consisting of long intromissions (10-30 s of…”
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Effects of Pre- and Postpubertal Social Experience on Sexual and Social Behavior in Male and Female Brown Lemmings (Lemmus sibiricus) by Coopersmith, Carol B, Huck, U. William, Conant-Huck, Laura, Banks, Edwin M

“…The effects of prepubertal social contact and postpubertal mating experience on sexual behavior were examined in male and female brown lemmings ( Lemmus…”
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Social olfaction in male brown lemmings (Lemmus sibiricus = ^Itrimucronatus^R) and collared lemmings (^IDicrostonyx groenlandicus^R): II. Discrimination of mated and unmated females by Huck, U. William, Banks, Edwin M, Coopersmith, Carol B

“…Four experiments were conducted with 32 brown and 80 collared male lemmings. When tested in a Y-maze olfactometer, both species preferred the odor of unmated…”
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Differential effects of environmental enrichment on the open-field behavior of wild and domestic Norway rats by Huck, U. William, Price, Edward O

“…Early postweaning experience in an enriched environment had a greater influence on the open-field behavior and body weight of 32 wild Norway rats than of their…”
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Offspring sex ratio in hamsters is correlated with vaginal pH at certain times of mating by Pratt, N C, Huck, U W, Lisk, R D

“…Golden hamsters (Mesocricetus auratus) are sexually receptive for 19-21 h around the time of ovulation. Vaginal pH was measured immediately before mating in…”
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