Results 61 to 70 of about 22,930 (292)

Morphological and histological differences between the testis of cattleyak and yak.

open access: yes, 2020
(A) Yak. (B) Cattleyak. (C) The testis of yak is significantly larger than that of cattleyak with the same age of yak. The divergences between the testis histology of yak (D) and cattleyak (E). The spermatogenic cells were indicated by arrowhead.
Shixin Wu (2090413)   +8 more
core   +1 more source

F1 Male Sterility in Cattle-Yak Examined through Changes in Testis Tissue and Transcriptome Profiles

open access: yes, 2022
Male-derived sterility in cattle-yaks, a hybrid deriving from yak and cattle, is a challenging problem. This study compared and analyzed the histomorphological differences in testis between sexually mature yak and cattle-yak, and examined the ...
Mengli Cao   +11 more
core   +1 more source

3D Closed‐Loop Navigation of Magnetic Microswimmers Using Vision‐Derived Depth Feedback

open access: yesAdvanced Intelligent Systems, EarlyView.
A planar magnetic microswimmer is navigated in three dimensions under a standard microscope. Image defocus supplies a real‐time depth cue, and model‐predictive control with A* planning steers the body on surfaces and in free swimming. Axial position is regulated by propulsion alone, without magnetic field gradients or extra cameras.
Yasin Cagatay Duygu   +2 more
wiley   +1 more source

Inferring regulatory element landscapes and gene regulatory networks from integrated analysis in eight hulless barley varieties under abiotic stress

open access: yesBMC Genomics, 2022
Background The cis-regulatory element became increasingly important for resistance breeding. There were many DNA variations identified by resequencing.
Qijun Xu   +6 more
doaj   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording   +4 more
wiley   +1 more source

Lipocalin‐2 activates hepatic stellate cells and promotes nonalcoholic steatohepatitis in high‐fat diet–fed Ob/Ob mice

open access: yesHepatology, EarlyView., 2022
Graphical summary of obesity‐induced NASH progression by LCN2 targeted to HSC activation. Abstract Background and Aims In obesity and type 2 diabetes mellitus, leptin promotes insulin resistance and contributes to the progression of NASH via activation of hepatic stellate cells (HSCs).
Kyung Eun Kim   +12 more
wiley   +1 more source

Comparative histomorphometry of seminiferous tubules in mature and immature cattle, yak, and cattle–yak

open access: yesAcademia Biology
The hybrid of the yak and the yellow cattle is sterile, caused by disturbed spermatogenesis, resulting in the absence of mature spermatozoa.
Robert Niayale   +6 more
doaj   +1 more source

Genomic analysis of Meiren yak based on whole genome resequencing

open access: yes, 2023
The Meiren yak is an important yak genetic resource in Gansu Province, China. In order to investigate the evolutionary history and population structure of Meiren yak genetic resources and to explore the characteristic genes of Meiren yak, the present ...
tong wang (16629354)
core   +1 more source

Impact of yak excreta on soil bacterial community in alpine marsh under warming conditions

open access: yesApplied and Environmental Microbiology
Livestock excreta and climate warming are two main disturbances of wetlands embedded in grazing lands, resulting in long-lasting changes in soil microorganisms.
Xuelian Guo   +5 more
doaj   +1 more source

Performances of lactating yaks on silage and complete feed block based feeding regiments

open access: yesIndian Journal of Animal Sciences, 2016
An experiment was conducted on lactating yaks at Nyukmadung farm under ICAR. Lactating yaks (16) of uniform age and parity (second and third) and body weights were randomly divided into groups T1, T2, T3 and T4 of 4 animals each and fed individually for
D MEDHI   +7 more
doaj   +1 more source

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