Results 21 to 30 of about 5,544 (282)

Analysis of Chromatin Openness in Testicle Tissue of Yak and Cattle-Yak

open access: yesInternational Journal of Molecular Sciences, 2022
Cattle-yak, a crossbreed of yak and cattle, which can exhibit obvious heterosis and can adapt to the harsh environmental conditions of the Qinghai Tibet Plateau (QTP). However, F1 cattle-yak were found to be sterile because they were unable to produce sperm, which adversely restricted the fixation of heterosis.
Mengli Cao   +6 more
openaire   +2 more sources

Phylogeographical analyses of domestic and wild yaks based on mitochondrial DNA: new data and reappraisal [PDF]

open access: yes, 2010
Aim We aimed to examine the phylogeographical structure and demographic history of domestic and wild yaks (Bos grunniens) based on a wide range of samples and complete mitochondrial genomic sequences. Location The Qinghai-Tibetan Plateau (QTP) of
Guo, Songchang   +21 more
core   +2 more sources

Yak genetic resources of India: distribution, types and characteristics

open access: yesIndian Journal of Animal Sciences, 2020
In India, the yaks are reared by the people residing between 3,000 and 5,000 meters above mean sea level in the states of Jammu-Kashmir, Himachal Pradesh, Uttrakhand, Sikkim, Arunachal Pradesh and West Bengal.
RAHUL BEHL   +5 more
doaj   +1 more source

Dietary supplementation with glutamine improves gastrointestinal barrier function and promotes compensatory growth of growth-retarded yaks

open access: yesAnimal, 2021
The growth retardation of yaks commonly exists on the Tibetan Plateau, and the gastrointestinal barrier function of growth-retarded yaks is disrupted.
J. Ma   +7 more
doaj   +1 more source

A comparison of average daily gain, apparent digestibilities, energy balance, rumen fermentation parameters, and serum metabolites between yaks (Bos grunniens) and Qaidam cattle (Bos taurus) consuming diets differing in energy level

open access: yesAnimal Nutrition, 2023
Yaks (Bos grunniens), indigenous to the harsh Qinghai-Tibetan Plateau, are well adapted to the severe conditions, and graze natural pasture without supplements all year round.
Hu Liu   +8 more
doaj   +1 more source

Comparison of rumen archaeal diversity in adult and elderly yaks (Bos grunniens) using 16S rRNA gene high-throughput sequencing

open access: yesJournal of Integrative Agriculture, 2017
This study was conducted to investigate the phylogenetic diversity of archaea in the rumen of adult and elderly yaks. Six domesticated female yaks, 3 adult yaks ((5.3±0.6) years old), and 3 elderly yaks ((10.7±0.6) years old), were used for the rumen ...
Li-zhi WANG   +4 more
doaj   +1 more source

Isolation and Characteristics of a Novel Aichivirus D from Yak

open access: yesMicrobiology Spectrum, 2023
Aichivirus D (AiV-D) is a newly emerging Kobuvirus detected in bovine and sheep, and information is limited regarding its biological significance and prevalence. This study aimed to explore both the prevalence and characteristics of AiV-D in yaks.
Nan Yan   +5 more
doaj   +1 more source

Dietary forage to concentrate ratios impact on yak ruminal microbiota and metabolites

open access: yesFrontiers in Microbiology, 2022
To improve the rumen fermentation function and growth performance of yaks (Bos grunniens), better understanding of the effect of different dietary forage to concentrate ratios on rumen microbiota and metabolites is needed.
Kaiyue Pang   +17 more
doaj   +1 more source

Deafness associated with pigmentation phenotypes in North American yaks (Bos grunniens)

open access: yes, 2022
OBJECTIVE: To assess the presence of suspected pigment-associated deafness in North American yaks (Bos grunniens). ANIMALS: 12 North American yaks, including 11 with the homozygous piebald Royal pigmentation phenotype and 1 with the heterozygous piebald ...
George M. Strain   +3 more
core   +1 more source

Pasture Management Relevant Behaviour of Yaks (Bosgrunniens) [PDF]

open access: yes, 2022
After a decline in yak populations in Central Asia, efforts have been made for several years to rebuild them. In that context, the ecological demands of the alpine landscape must be taken into account.
Kaufmann, O., Tolebekova, A.
core   +1 more source

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