Results 91 to 100 of about 35,836 (303)

Effects of Summer Heat Stress on Physiological Parameters and Reproductive Efficiency of Barbarine Ewes Under Natural Outdoor or Indoor Conditions

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Climate change and rising ambient temperatures increasingly challenge sheep production systems in arid and semi‐arid regions, particularly during the summer breeding season. This study evaluated the effects of heat stress and direct solar exposure on physiological responses, metabolic profile, and reproductive performance of Barbarine ewes, a ...
Samia Khnissi, Dorra Aouadi, Hela Chalouati, Mourad Rekik, Imène Ben Salem   +4 more
wiley   +1 more source

Prolactin and Triiodothyronine Modulate Seasonal Variation in Brown Adipose Tissue in Djungarian Hamsters

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Seasonal photoperiodic cycles regulate energy rheostasis in many animals. Brown adipose tissue (BAT) and the liver are key metabolic organs that show remarkable plasticity in response to photoperiodic conditions. Prolactin (PRL) and thyroid hormones are endocrine signals that transmit neural‐derived photoperiodic time measurement encoding to ...
Sayantan Sur, Grace Payling, Calum Stewart, Avalene Tan, Caitlin Diggle, Tyler J. Stevenson   +5 more
wiley   +1 more source

Recurrence of Estrous Cycles in the Light-Induced Persistent Estrous Rats by Reserpine

Endocrinologia Japonica, 1976
Effect of continuous illumination (LL) on ovarian functions was compared at various ages between the rats exposed to LL from 70 days of age (LL-70) and exposed to LL from the day of birth (LL-0). LL-0 rats retained corpora lutea in their ovaries in higher incidence than LL-70 rats. Effect of reserpine on the restoration of cyclicity was studied in LL-0
SHIRAMA, KAZUHIKO, TAKEO, YUJI, SHIMIZU, KIYOSHI, MAEKAWA, KYUTARO   +3 more
openaire   +3 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

Luteal Blood Flow and progesterone concentration during first and second postpartum estrous cycle in lactating dairy cows [PDF]

, 2019
The aim of the present study was to determine the differences in corpus luteum (CL) functionality between the first postpartum estrous cycle and the following cycle in lactating dairy cows. Luteal blood flow (LBF), luteal size and blood progesterone (P4)
Mari G., Merlo B., Lucci M., Iacono E.
core   +1 more source

Safety Evaluation of an Aqueous Root and Leaf Extract of Ashwagandha (Withania somnifera)

Phytotherapy Research, EarlyView.
Sensoril, an aqueous root and leaf extract of ashwagandha showed no evidence of mutagenicity in the in vitro Ames assay, was negative in the in vitro micronucleus, in vivo mammalian bone marrow chromosome aberration assays, and was well tolerated in the rat at up to 4000 mg/kg BW/day when administered orally for a period of 90 days. The data from these
Mukesh Summan, Candace L. Doepker, Gregory P. Brorby   +2 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

Recovery from Age-Related Infertility under Environmental Light-Dark Cycles Adjusted to the Intrinsic Circadian Period

Cell Reports, 2015
Female reproductive function changes during aging with the estrous cycle becoming more irregular during the transition to menopause. We found that intermittent shifts of the light-dark cycle disrupted regularity of estrous cycles in middle-aged female ...
Nana N. Takasu, Takahiro J. Nakamura, Isao T. Tokuda, Takeshi Todo, Gene D. Block, Wataru Nakamura   +5 more
doaj   +1 more source

Estrous cycle hormones in control (n = 9) and obese (n = 10) Ossabaw pigs.

, 2015
# Significant difference between the control and obese pigs at the p
Jessica N. Taibl (750425), Mouhamad Alloosh (378774), Annie E. Newell-Fugate (750424), Romana A. Nowak (457413), Michael Sturek (378773), Janice M. Bahr (456162), Rebecca L. Krisher (750426)   +6 more
core   +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