Using a within subjects design, we documented morphological, bioacoustical and behavioral developmental changes in big brown bats. Eptesicus fuscus pups are born naked and blind but assume an adult-like appearance by post-natal day (PND) 45 and flight by PND 30. Adult females use spatial memory, acoustic and olfactory cues to reunite with offspring, but it is unclear if pups can recognize mater...

Rat pups must learn maternal odor to support attachment behaviors, including nursing and orientation toward the mother. Neonates have a sensitive period for rapid, robust odor learning characterized by increased ability to learn odor preferences and decreased ability to learn odor aversions. Specifically, odor-0.5 mA shock association paradoxically causes an odor preference and coincident failu...

Central oxytocin mediates the acquisition of a filial preference for maternal odour in rat pups, manifested by their huddling preferences. The present study was designed to examine whether maternal care modulates oxytocin concentrations in rat pups and, if so, how different types of maternal contact are associated with the pups' oxytocin concentrations. Pairs of 14-day-old littermates were remo...

Wistar rat pups were implanted with bilateral olfactory bulb cannulas on postnatal day 5 (PN5). On PN6, pups were trained in an olfactory classical conditioning task with peppermint odor as the CS and tactile stimulation/stroking as the UCS. Pups were randomly assigned to either PAIRED, BACKWARD or ODOR-only conditions. Half the pups in each group received intrabulbar infusions of 100 microM pr...

Two experiments were conducted to investigate the role of milk availability in the development of independent feeding and drinking in the Norway rat pup. Beginning on Day 14 postnatally, pups were exposed to different levels of milk supply by changing litter size from 8 to 4 versus 12 pups (Experiment 1) or limiting temporally the pups' access to a lactating dam to 8, 14, or 24 hr daily (Experi...

Maternal obesity exerts negative effects on cognitive function and behavior of the offspring. In the present study, we assessed the effects of paternal physical exercise on spatial learning ability in relation with hippocampal neuroplasticity in the rat pups born from the obese maternal rats. There were four experimental groups: paternal nonexercised male pups from normal maternal rats, paterna...

The Romanian hamster Mesocricetus newtoni is a threatened and cryptic species, with distribution limited to North-eastern Bulgaria South-eastern Romania (Dobruja region). Current literature does not provide sufficient data regarding diel activities behavior of this especially under field conditions. In context, one female M. , during the rearing period her four pups, was monitored for ten days ...

Objective: To study the teratogenic effects of Bisphenol A exposure during maternal pregnancy and lactation on testicular histology developing rat pups.
 Design Study: Laboratory-based experimental study.
 Place Duration Department Anatomy, Islamic International Medical College Rawalpindi in collaboration with National Institute Health (NIH) Islamabad Pakistan from Sep 2018 to 2019.&#...

To control and observe first feeding experiences, pups were reared without access to food. At weaning age, individual pups received simultaneous access to a palatable, noncaloric diet and a similar diet containing starch. Each diet contained a flavor cue. Within 20 min of sampling both diets pups preferentially ingested the caloric alternative. Further tests indicated that pups learned a prefer...

lttrd high-fat dict (HFD) and those in study 2 were fed either a LFD or a fish-oil HFD after day 5 of prcgnancy and during lactation, In study ], when pups were placed on a selilselection regimen of the LFD and the lard HFD within the first week after vreaning, the ratio of the lard HFD intake [lard HFD intake (g)ftotal intake (g)l by pups of beth groups was about 7096. Although pups nursed by...