Results 91 to 100 of about 74,741 (242)

The Effect of Oral Calcium Boluses and Subcutaneous Calcium Injection on Blood Metabolites and Milk Yield in Holstein Cattle Fed Anionic Diets

open access: yesVeterinary Medicine and Science, Volume 12, Issue 1, January 2026.
Oral calcium supplementation modestly improved early postpartum plasma ionized Ca and reduced ketone body concentrations, suggesting moderated metabolic benefits. No effects on milk yield and fertility were found. Further research with larger sample sizes may be warranted to confirm these findings.
Allyson Patterson   +3 more
wiley   +1 more source

Validation of the polysemen admixture on viability and acrosomal morphology of boar spermatozoa [PDF]

open access: yes, 2007
Semen were collected using artificial vagina (AV), from 5 large white boars aged 2-2.5 years twice a week for 16 weeks in each of the two seasons, early rainy (ER) and late rainy (LR) seasons, to determine the effects of multiple semen pool admixture on ...
Ogbuewu, IP   +3 more
core  

Preferences for Bundled Index‐Based Livestock Insurance: Evidence From Northern Kenya

open access: yesAgricultural Economics, Volume 57, Issue 1, January 2026.
ABSTRACT Considerable attention has been placed on bundled index insurance to enhance climate resilience, address multiple risks simultaneously, and increase the adoption of agricultural technologies. We conducted an endow‐and‐exchange choice experiment with 1,828 female and male livestock keepers in northern Kenya to elicit their preferences for ...
Kelvin Mashisia Shikuku   +5 more
wiley   +1 more source

The effects of supplementation of vitamin D to the egg‐yolk extender on cryopreservation of ram semen

open access: yesVeterinary Medicine and Science
Objectives This study aimed to examine the effects of supplementation of vitamin D to the egg‐yolk extender on characteristics of frozen–thawed ram semen. Methods Semen samples obtained from adult rams were pooled and divided into five equal volumes.
Ahmet Aktar   +4 more
doaj   +1 more source

Bioethical Issues as Triggers of Religious Transformation in Orthodox Christianity

open access: yesBioethics, Volume 40, Issue 1, Page 45-51, January 2026.
ABSTRACT The advent of new biomedical technologies has given rise to an emerging area of sociocultural discourse. The sociocultural perception of these technologies is contingent upon a number of factors, including the prevailing attitudes within dominant religious traditions. Religious bioethics is fundamentally distinct from secular bioethics.
Roman Tarabrin
wiley   +1 more source

The Overlooked Threat of Global Warming on Elasmobranch Fertility

open access: yesFish and Fisheries, Volume 27, Issue 1, Page 41-55, January 2026.
ABSTRACT Climate change is increasingly recognised as a critical threat to global biodiversity, yet its impacts on reproductive processes remain poorly understood in many marine taxa. Elasmobranchs (sharks, skates and rays) represent a particularly vulnerable group due to their peculiar life histories, low fecundity, and diverse reproductive modes.
Noémie Coulon   +3 more
wiley   +1 more source

Study of Genetic Progress in the Context of Disconnection Between Two Originally Connected Populations

open access: yesJournal of Animal Breeding and Genetics, Volume 143, Issue 1, Page 24-34, January 2026.
ABSTRACT Genetic progress of breeding programs is highly dependent on the size of reference populations and the relatedness between reference populations and selection candidates. Many reasons can lead a population to split into several subpopulations (sanitary, physiological, political reasons, etc.).
M. Wicki, A. Legarra, J. Raoul
wiley   +1 more source

An Increase in Male Recombination Rate With Age in Dairy Cattle Is Heritable and Polygenic

open access: yesJournal of Animal Breeding and Genetics, Volume 143, Issue 1, Page 35-49, January 2026.
ABSTRACT Meiotic recombination is an essential process for shuffling genetic diversity in sexually reproducing organisms, can vary within and between individuals in response to intrinsic and extrinsic factors, and can be heritable. Interestingly, recombination rate has been found to vary with age in some species, but to date, there have been no ...
Evelyn Jade   +5 more
wiley   +1 more source

Optimising the Use of Cryopreserved Genetic Resources for the Selection and Conservation of Animal Populations

open access: yesJournal of Animal Breeding and Genetics, Volume 143, Issue 1, Page 50-67, January 2026.
ABSTRACT Genetic diversity is essential for the sustainability and adaptability of populations, and is thus a central pillar of the agro‐ecological transition. However, within a population, it is inevitable that some amount of genetic variability is lost, and efforts must be made to limit this as much as possible.
Alicia Jacques   +2 more
wiley   +1 more source

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