Results 51 to 60 of about 56,034 (249)

Bovine Vaginal Circulation: Changes during Estrous Cycle

Journal of Dairy Science, 1975
Vaginal thermal conductance was measured in 12 heifers and 7 cows with a gradient layer heat flow probe. Values rose for 4 to 5 days prior to day of behavioral estrus (day 0), with a peak on days --2 and --1, and then declined from day 0 to +5. Curves for heifers were higher than those for cows although there was no evidence that they were not parallel.
R M, Abrams, W W, Thatcher, J R, Chenault, C J, Wilcox   +3 more
openaire   +2 more sources

Immunological and periodontal benefits of prebiotic polydextrose in rats with induced periodontitis

Journal of Periodontology, EarlyView.
Abstract Background Prebiotic therapy is a promising approach for managing periodontitis due to its potential benefits in modulating the microbiome and the immune response. This study aimed to evaluate the effects of the prebiotic (PREB) polydextrose (PDX) on the development of experimental periodontitis (EP) in rats.
Raquel de S. F Nassar, Marcella C. Ribeiro, Ana Carolina P. Hernandes, Laura Z. Gianduzzo, Vanessa de P. S. Pereira, Sérgio L. S. Salvador, Edilson Ervolino, Débora S. F. Sávio, Michel R. Messora, Flávia A. C. Furlaneto   +9 more
wiley   +1 more source

Calcium and magnesium concentrations in uterine fluid and blood serum during the estrous cycle in the bovine [PDF]

, 2012
To investigate uterine and serum Ca++ and Mg++ variations during the estrous cycle in the bovine, 66 genital tracts and blood samples were collected from Urmia abattoir, Urmia, Iran.
Amir Khaki, Mozhgan Pak, Roya Abedizadeh, Sajad Alizadeh, Sayed Mortaza Alavi-Shoushtari, Siamak Asri-Rezaie   +5 more
core   +1 more source

Bioclimatic, demographic and anthropogenic correlates of grizzly bear activity patterns in the Greater Yellowstone Ecosystem

Oikos, EarlyView.
Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli, Mark A. Haroldson, Justin G. Clapp, Paolo Ciucci, Frank T. van Manen   +4 more
wiley   +1 more source

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li, Ranran Wang, Fuyang Tian, Yudao Li, Zhuolin Wang, Yuxin Yu, Liping Ma, Xin Lu   +7 more
wiley   +1 more source

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

Wildlife 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, Sebastien Comte, Tamara Keeley, Maquel Brandimarti, Catherine A. Herbert   +4 more
wiley   +1 more source

Follicular dynamics in Serrana goats [PDF]

, 2006
Twenty-two Serrana goats were studied through two successive estrous cycles in order to characterize their follicular dynamics during the breeding season. The ovaries of the goats were scanned daily by realtime ultrasonography and all follicles ≥3mm were
Almeida, José Carlos, Azevedo, Jorge Manuel Teixeira de, Baril, Gérard, Fontes, Paulo J., Mascarenhas, Ramiro, Simões, João, Valentim, Ramiro   +6 more
core   +1 more source

Monitoring the effects of ovariectomy on seasonal movement behavior in suburban female white‐tailed deer using internet of things‐enabled devices

Wildlife Biology, EarlyView.
Abundant deer populations often cause conflicts in suburban communities, yet traditional population reduction methods, such as controlled hunting, can be challenging to implement. Fertility control, specifically through ovariectomy, can limit reproduction and reduce populations in certain settings, but its effect on movement behavior remains poorly ...
Vickie DeNicola, Stefano Mezzini, Francesca Cagnacci   +2 more
wiley   +1 more source

Transepithelial electrical resistance (TEER): a functional parameter to monitor the quality of oviduct epithelial cells cultured on filter supports [PDF]

, 2015
Cultivation of oviduct epithelial cells on porous filters fosters in vivo-like morphology and functionality. However, due to the optical properties of the filter materials and the cells’ columnar shape, cell quality is hard to assess via light microscopy.
Chen, Shuai, Einspanier, Ralf, Schoen, Jennifer   +2 more
core   +2 more sources

Luteinizing hormone receptor knockout mouse: What has it taught us?

Andrology, EarlyView.
Abstract Luteinizing hormone (LH), along with its agonist choriongonadotropin (hCG) in humans, is the key hormone responsible for the tropic regulation of the gonadal function. LH and hCG act through their cognate receptor, the luteinizing hormone/choriongonadotropin receptor (LHCGR; more appropriately LHR in rodents lacking CG), located in the testis ...
Ilpo T. Huhtaniemi
wiley   +1 more source