In 1991, a disease with clinical signs indicative of rinderpest was reported in yaks in the former Soviet Union, near the border with Mongolia. At the peak of the epizootic, mortality among affected yaks was 32-42% in adults and 65% in animals less than one year old. Pathological samples were examined independently at two institutes in Russia. Both institutes confirmed the presence of rinderpes...

PIWI-interacting RNAs (piRNA) are small non-coding RNA molecules expressed in animal germ cells that interact with PIWI family proteins to form RNA-protein complexes involved in epigenetic and post-transcriptional gene silencing of retrotransposons and other genetic elements in germ line cells, including reproductive stem cell self-sustainment, differentiation, meiosis and spermatogenesis. In t...

1 To determine the nationwide status of persistent BVDV infection in different members 2 from Bos taurus and Bubalus bubalus in China and compare different test methods, a 3 total of 1379 serum samples from clinical healthy dairy cattle (Chinese Holstein), beef 4 cattle, yaks (Bos grunniens), and water buffalo (Bubalus bubalis) were collected in 5 eight provinces of China from 2010 to 2013. The...

Toxocara vitulorum has been rarely reported in yaks at high altitudes and remote areas of Sichuan Province of Tibetan Plateau of China. The current study was designed to investigate the prevalence, associated risk factors, and phylogenetic characteristics of T. vitulorum in yak calves on the Qinghai Tibetan plateau. Fecal samples were collected from 891 yak calves and were examined for the pres...

Li M., Wu X., Guo X., Bao P., Ding X., Chu M., Liang C., Yan P. (2017): Identification of optimal reference genes for examination of gene expression in different tissues of fetal yaks. Czech J. Anim. Sci., 62, 426– 434. Reverse transcription quantitative real-time PCR (RT-qPCR) is widely used to study the relative abundance of mRNA transcripts because of its sensitivity and reliable quantificat...

Estrogen and its receptors are essential hormones for normal reproductive function in males and females during developmental stage. To better understand the effect of estrogen receptor (ER) gene in yak (Bos grunniens), reverse transcription-polymerase chain reaction (PCR) was carried out to clone ERα and ERβ genes. Bioinformatics methods were used to analyze the evolutionary relationship betwee...

The aim of this study was to determine the microbial community composition in the rumen of yaks under different feeding regimes. Microbial communities were assessed by sequencing bacterial and archaeal 16S ribosomal RNA gene fragments obtained from yaks (Bos grunniens) from Qinghai-Tibetan Plateau, China. Samples were obtained from 14 animals allocated to either pasture grazing (Graze), a grazi...

The slow progress in the development of subsector, particularly alternative feed sources such as agro-industrial byproducts and unconventional resources, has deepened gap availability accessibility to animal feed. Production is highly resource demanding. Recently, it been shown that increasing climate change, land degradation, recurrence droughts have worsened gap. In backdrop these challenges,...

Foreword Livestock production is the predominant industry in Tibet Autonomous Region of China with significant numbers of yaks, cattle, horses, sheep and goats raised under various production systems. Little is known about the mineral and trace element status of these animals although it is suspected that they may be at risk from iodine and selenium deficiency. This report is the outcome of a c...