Results 91 to 100 of about 60,551 (281)

In Vitro Fertility of Post-thawed Epididymal Ram Spermatozoa After Storage at 5 °C Before Cryopreservation [PDF]

open access: yes, 2013
This study addressed the effects of storage duration of epididymides at 5 °C before sperm collection and their fertility after cryopreservation in vitro.
fahrudin, M. (M)   +2 more
core  

Differences in mammal community response to highway construction across different levels of human land use

open access: yesWildlife Biology, EarlyView.
Worldwide, transportation agencies have been involved in road mitigation efforts to reduce road mortality and promote connectivity of endangered species. Baseline data on how mammals respond to highway construction, however, are rarely collected in road mitigation and monitoring studies, including in the USA.
Thomas J. Yamashita   +4 more
wiley   +1 more source

Sibling rivalry: Males with more brothers develop larger testes

open access: yesEcology and Evolution, 2018
When females mate with multiple partners in a reproductive cycle, the relative number of competing sperm from rival males is often the most critical factor in determining paternity.
Heidi S. Fisher   +3 more
doaj   +1 more source

Hunting, but not outdoor recreation, modulates behavioural tolerance to human disturbance in Alpine marmots Marmota marmota

open access: yesWildlife Biology, EarlyView.
Humans are often perceived as predators by free‐living animals, and thus, even non‐consumptive human activities such as outdoor recreation may trigger behavioural and physiological responses, often with negative consequences on individual fitness and population persistence.
Friederike Zenth   +8 more
wiley   +1 more source

A comprehensive assessment of immunomodulatory potentials of Korean antler velvet extract in mouse and neurodegenerative Caenorhabditis elegans models

open access: yesJournal of Animal Science and Technology
This study conducts a comprehensive analysis of deer antler velvet’s impact, with a specific emphasis on mouse models and in vitro experiments. The study navigates the intricacies of antler velvet’s variability, encompassing considerations of drying ...
Anna Kang   +6 more
doaj   +1 more source

Aqueous Extract of Red Deer Antler Promotes Hair Growth by Regulating the Hair Cycle and Cell Proliferation in Hair Follicles

open access: yesThe Scientific World Journal, 2014
Deer antlers are the only mammalian appendage capable of regeneration. We aimed to investigate the effect of red deer antler extract in regulating hair growth, using a mouse model. The backs of male mice were shaved at eight weeks of age.
Jing-jie Li   +5 more
doaj   +1 more source

Peromyscus mice as a model for studying natural variation

open access: yeseLife, 2015
The deer mouse (genus Peromyscus) is the most abundant mammal in North America, and it occupies almost every type of terrestrial habitat. It is not surprising therefore that the natural history of Peromyscus is among the best studied of any small mammal.
Nicole L Bedford, Hopi E Hoekstra
doaj   +1 more source

Assessing physiological, behavioral and movement responses to Suprelorin implant delivery methods in free‐ranging eastern grey kangaroos Macropus giganteus

open access: yesWildlife Biology, EarlyView.
Overabundant populations of eastern grey kangaroos Macropus giganteus in peri‐urban areas pose ecological and social challenges. Current management strategies are often hindered by animal welfare and logistical concerns. This study aimed to assess stress responses of kangaroos to two contraceptive delivery methods.
Fabiola R. O. Silva   +4 more
wiley   +1 more source

Reviewing the effects of food provisioning on wildlife immunity [PDF]

open access: yes, 2018
While urban expansion increasingly encroaches on natural habitats, many wildlife species capitalize on anthropogenic food resources, which have the potential to both positively and negatively influence their responses to infection.
Babayan, Simon A.   +2 more
core   +1 more source

Tradeoffs between brain and digestive tissues across elevations in Typhlomys daloushanensis: evidence for sexual dimorphism

open access: yesWildlife Biology, EarlyView.
To cope with highly stochastic and/or heterogeneous environmental conditions, animals must balance energy resource allocation across physiological processes. The digestive tract and brain exhibit structural variations under strong developmental and selective pressures that vary across environmental gradients both between and within species.
Yimei Yan   +9 more
wiley   +1 more source

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