Results 31 to 40 of about 225,561 (295)

Effect of mesenchymal stem cells on animal semen during storage

open access: yesВетеринария сегодня, 2023
Mesenchymal stem cells (MSCs) have been known to mankind since the mid-20th century. The comprehensive study revealed their high biologically active potential. Capacity of forming several types of body tissues was demonstrated.
E. Yu. Zakirova   +2 more
doaj   +1 more source

Transport Disparities in a Crossborder Region. Case Study: The Land of Maramureş [PDF]

open access: yesRomanian Review of Regional Studies, 2006
The Land of Maramureş is one of the most representative natural regions. It has become a cross-border region on a segment of the Romanian-Ukrainian border because of the evolution of human society.
NICOLAE BOAR
doaj  

Comparative Analysis of piRNA Profiles Helps to Elucidate Cryoinjury Between Giant Panda and Boar Sperm During Cryopreservation

open access: yesFrontiers in Veterinary Science, 2021
Cryopreservation induces sperm cryoinjuries, including physiological and functional changes. However, the molecular mechanisms of sperm cryoinjury and cryoresistance are still unknown. Cryoresistance or the freeze tolerance of sperm varies across species,
Yihan Wang   +13 more
doaj   +1 more source

Chlorophyll b—An Essence of Plant Photosynthesis

open access: yesPlants
Chlorophyll (Chl) b is crucial for assembly of the light-harvesting antennae that are required for optimal photosynthetic activity in plants and green algae. Synthesis of its precursor, chlorophyllide (Chlide) b, is catalyzed by Chlide a oxygenase (CAO),
John Kenneth Hoober   +3 more
doaj   +1 more source

Development of an optimal protocol to induce capacitation of boar spermatozoa in vitro

open access: yesJournal of Animal Reproduction and Biotechnology, 2022
In 1951, Colin Russell Austin and Min Chueh Chang identified “capacitation”, a special process involving ejaculated spermatozoa in the female reproductive tract.
Seung-Ik Jang   +6 more
doaj   +1 more source

Influence of wild boar (Sus scrofa L.) on vegetation development in the Meerdaal forest [PDF]

open access: yes, 2022
openThe wild boar is a native ungulate species for Flanders, however due to overhunting and a reduction of forested area in the last centuries wild boar disappeared.
WILLEMS, HENDRIK JULES R
core  

Pork Production with Entire Males: Directions for Control of Boar Taint

open access: yesAnimals, 2020
Boar taint is caused by the accumulation of androstenone and skatole and other indoles in the fat; this is regulated by the balance between synthesis and degradation of these compounds and can be affected by a number of factors, including environment and
E. James Squires   +2 more
doaj   +1 more source

Correlation of frequency of spermatozoa morphological alterations with sperm concentration in ejaculates of Polish Landrace boars [PDF]

open access: yesActa Veterinaria, 2013
The experiments were performed on 448 ejaculates obtained from 41 Polish Landrace boars. Ejaculates collected from each boar at one-month intervals for approximately 10 months were analysed.
Kondracki S.   +4 more
doaj   +1 more source

CANNULATION OF THE VAS DEFERENS IN THE BOAR [PDF]

open access: yesReproduction, 1969
White, Larsen & Wales (1959) obtained semen from the epididymis of the ram by establishing a fistula into the vas deferens. This method enabled the authors to make observations on epididymal semen without contamination by other accessory gland secretions and allowed them to carry out comparative studies on normally ejaculated spermatozoa.
S. Wierzbowski, E. Wierzchoś
openaire   +2 more sources

Body mass and sex estimation from lower carnassial tooth morphometry in the endangered Iberian wolf (Canis lupus signatus): An ecomorphological analysis of sexual size dimorphism

open access: yesThe Anatomical Record, EarlyView.
Abstract The Iberian wolf (Canis lupus signatus) is an endangered subspecies characterized by highly fragmented populations and increasing human–carnivore conflict across the Iberian Peninsula. Although body mass strongly influences predator–prey dynamics and ecological performance, quantitative assessments of sexual size dimorphism (SSD) and body mass
Leonardo Cotts   +4 more
wiley   +1 more source

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