Results 21 to 30 of about 326,345 (346)

How Medical Education Is Missing the Bull's-eye.

open access: yesNew England Journal of Medicine, 2020
How Medical Education Is Missing the Bull’s-eye If medical students and trainees are taught to recognize symptoms of disease in only white patients and learn to perform lifesaving maneuvers on only...
LaShyra T. Nolen
semanticscholar   +1 more source

First study of in vitro protective effect of Lepidium meyenii (Maca) on frozen–thawed bovine spermatozoa [PDF]

open access: yesVeterinary World, 2022
Background and Aim: Lepidium meyenii Walp (Maca) is an herbaceous plant that grows in the Peruvian Andes and it has been widely used as a nutritional supplement and fertility enhancer and has been used in the treatment of a variety of diseases, such as ...
Johanna Leiva-Revilla   +4 more
doaj   +1 more source

Beneficial Effects of Nitric Oxide Induced Mild Oxidative Stress on Post-Thawed Bull Semen Quality [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2015
Background Cryopreservation of semen requires optimized conditions to minimize the harmful effects of various stresses. The main approach for protection of sperm against stress is based on the use of antioxidants and cryoprotectants, which are described ...
Mohsen Sharafi   +3 more
doaj   +1 more source

Flood Simulation in South Carolina Watersheds Using Different Precipitation Inputs

open access: yesAdvances in Meteorology, 2018
Flooding induced by extreme rainfall events causes tremendous loss of life and property and infrastructure failure. Accurate representation of precipitation, which has high variation in space and time, is critical to hydrologic model simulations and ...
Peng Gao, Gregory J. Carbone, Junyu Lu
doaj   +1 more source

Selection for bull fertility: a review

open access: yesTranslational Animal Science, 2019
Fertility is a critically important factor in cattle production because it directly relates to the ability to produce the offspring necessary to offset costs in production systems.
M. Butler   +4 more
semanticscholar   +1 more source

Sperm miR‐15a and miR‐29b are associated with bull fertility

open access: yesAndrologia, 2020
MicroRNAs modulate male fertility by regulating gene expression. In this study, dynamics of sperm miR‐15a, miR‐29b and miR‐34a from high fertility (HF) and low fertility (LF) bulls using RT‐qPCR were evaluated.
E. Menezes   +11 more
semanticscholar   +1 more source

Relationships between Biomarkers of Oxidative Stress in Seminal Plasma and Sperm Motility in Bulls before and after Cryopreservation

open access: yesAnimals, 2022
This study aimed at evaluating the relationship between biomarkers of oxidative stress (OS) in seminal plasma and sperm motility in bulls before and after cryopreservation. Three ejaculates per bull were collected from 20 young bulls.
Veronica Vigolo   +6 more
doaj   +1 more source

Uncovering sperm metabolome to discover biomarkers for bull fertility

open access: yesBMC Genomics, 2019
Subfertility decreases the efficiency of the cattle industry because artificial insemination employs spermatozoa from a single bull to inseminate thousands of cows.
E. Menezes   +9 more
semanticscholar   +1 more source

A rare urachal abscess in a young bull with conservative management

open access: yesOpen Veterinary Journal, 2022
: Background: The urachus is an embryonic remnant occurring as result of involution of the allantoic duct and the ventral cloaca. This canal becomes progressively obliterated after birth. It uncommonly persist as different variants after birth.
Jalal Mohamed Abdelhadi   +2 more
doaj   +1 more source

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