Comparison of nitrogen utilization and urea kinetics between yaks (Bos grunniens) and indigenous cattle (Bos taurus)1

2017 ◽  
Vol 95 (10) ◽  
pp. 4600-4612 ◽  
Author(s):  
J. W. Zhou ◽  
C. L. Zhong ◽  
H. Liu ◽  
A. A. Degen ◽  
E. C. Titgemeyer ◽  
...  
Keyword(s):  
Bos Taurus ◽  
Nitrogen Utilization ◽  
Indigenous Cattle ◽  
Bos Grunniens ◽  
Urea Kinetics

scholarly journals Comparison of Nitrogen Metabolism in Yak (Bos grunniens) and Indigenous Cattle (Bos taurus) on the Qinghai-Tibetan Plateau

2011 ◽  
Vol 24 (6) ◽  
pp. 766-773 ◽  
Author(s):  
Hucheng Wang ◽  
Ruijun Long ◽  
Juan Boo Liang ◽  
Xusheng Guo ◽  
Luming Ding ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Nitrogen Metabolism ◽  
Bos Taurus ◽  
Indigenous Cattle ◽  
Bos Grunniens

Comparison of nitrogen utilization and urea kinetics between yaks ( ) and indigenous cattle ( )

2017 ◽  
Vol 0 (0) ◽  
pp. 0
Author(s):  
J. W. Zhou ◽  
C. L. Zhong ◽  
H. Liu ◽  
A. A. Degen ◽  
E. C. Titgemeyer ◽  
...  
Keyword(s):  
Nitrogen Utilization ◽  
Indigenous Cattle ◽  
Urea Kinetics

Comparison of aquaporin-1 expression between yak (Bos grunniens) and indigenous cattle (Bos taurus) in the Qinghai–Tibetan Plateau

2017 ◽  
Vol 57 (8) ◽  
pp. 1618 ◽  
Author(s):  
C. L. Zhong ◽  
J. P. Kang ◽  
G. S. Stewart ◽  
J. W. Zhou ◽  
X. D. Huang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Parotid Gland ◽  
Bos Taurus ◽  
Large Family ◽  
Outer Cortex ◽  
Indigenous Cattle ◽  
Aquaporin 1 ◽  
Bos Grunniens ◽  
New Perspective ◽  
Species Specific

Aquaporins (AQPs) are a large family of integral membrane proteins that facilitate the transport of water through the biomembranes. AQP1, one of the 13 AQPs identified in mammals, is distributed in various tissues and organs, and plays an important role in body water homeostasis. The objectives of the present study were to identify the expression of aquaporin-1 (AQP1) in the kidney, rumen and parotid gland of yaks, and to quantify whether the protein abundance of AQP1 is species specific between yak (Bos grunniens) and indigenous cattle (Bos taurus). Three 3-year-old castrated males (156 ± 6.8 kg of bodyweight) of each of three genotypes, namely, yak, indigenous cattle and the crossbred between the two (Bos taurus♂ × Bos grunniens♀), were used; all animals were grazed in the same autumn pasture of the Qinghai–Tibetan Plateau, China. Western blot results detected (1) 28-kDa unglycosylated AQP1 in the kidney, rumen and parotid gland of all three genotypes, 40-kDa glycosylated AQP1 in renal cortex and medulla. (2) Yaks expressed less 28-kDa AQP1 protein in the outer cortex (P < 0.05), significantly more in the outer medulla (P < 0.01), and slightly more in the ventral rumen (P = 0.088) than did cattle. No difference was observed in the dorsal rumen and parotid gland (P > 0.10). In conclusion, the present study is the first to confirm the presence of AQP1 in bovine rumen and parotid gland and identified its expression in yaks. Abundance of AQP1 protein in yak kidney showed some difference from indigenous cattle. This could provide a new perspective to explain some adaptive mechanisms of yaks to the harsh environment in the Qinghai–Tibetan Plateau.

Haematobia irritans parasitism of F1 yak × beef cattle ( Bos grunniens  ×  Bos taurus ) hybrids

2019 ◽  
Vol 33 (4) ◽  
pp. 546-551 ◽  
Author(s):  
C. M. Calkins ◽  
J. D. Scasta ◽  
T. Smith ◽  
M. M. Stayton ◽  
S. L. Lake
Keyword(s):  
Beef Cattle ◽  
Bos Taurus ◽  
Haematobia Irritans ◽  
Bos Grunniens

scholarly journals Molecular cloning and sequence characterization of two genes, DQA1 and DQA2,from the Chinese yakow (Bos grunniens × Bos taurus)

2017 ◽  
Vol 41 ◽  
pp. 136-141
Author(s):  
Dongmei XI ◽  
Sameeullah MEMON ◽  
Guozhi LI ◽  
Xiangying LIU ◽  
Chao SU ◽  
...  
Keyword(s):  
Molecular Cloning ◽  
Bos Taurus ◽  
Sequence Characterization ◽  
Bos Grunniens

scholarly journals The patterns of admixture, divergence, and ancestry of African cattle populations determined from genome-wide SNP data

BMC Genomics ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
N. Z. Gebrehiwot ◽  
E. M. Strucken ◽  
H. Aliloo ◽  
K. Marshall ◽  
J. P. Gibson
Keyword(s):  
Genetic Diversity ◽  
Bos Taurus ◽  
Large Population ◽  
Bos Indicus ◽  
Principal Component ◽  
Effective Population ◽  
Indigenous Cattle ◽  
Cattle Breeds ◽  
African Cattle ◽  
Snp Data

Abstract Background Humpless Bos taurus cattle are one of the earliest domestic cattle in Africa, followed by the arrival of humped Bos indicus cattle. The diverse indigenous cattle breeds of Africa are derived from these migrations, with most appearing to be hybrids between Bos taurus and Bos indicus. The present study examines the patterns of admixture, diversity, and relationships among African cattle breeds. Methods Data for ~ 40 k SNPs was obtained from previous projects for 4089 animals representing 35 African indigenous, 6 European Bos taurus, 4 Bos indicus, and 5 African crossbred cattle populations. Genetic diversity and population structure were assessed using principal component analyses (PCA), admixture analyses, and Wright’s F statistic. The linkage disequilibrium and effective population size (Ne) were estimated for the pure cattle populations. Results The first two principal components differentiated Bos indicus from European Bos taurus, and African Bos taurus from other breeds. PCA and admixture analyses showed that, except for recently admixed cattle, all indigenous breeds are either pure African Bos taurus or admixtures of African Bos taurus and Bos indicus. The African zebu breeds had highest proportions of Bos indicus ancestry ranging from 70 to 90% or 60 to 75%, depending on the admixture model. Other indigenous breeds that were not 100% African Bos taurus, ranged from 42 to 70% or 23 to 61% Bos indicus ancestry. The African Bos taurus populations showed substantial genetic diversity, and other indigenous breeds show evidence of having more than one African taurine ancestor. Ne estimates based on r2 and r2adj showed a decline in Ne from a large population at 2000 generations ago, which is surprising for the indigenous breeds given the expected increase in cattle populations over that period and the lack of structured breeding programs. Conclusion African indigenous cattle breeds have a large genetic diversity and are either pure African Bos taurus or admixtures of African Bos taurus and Bos indicus. This provides a rich resource of potentially valuable genetic variation, particularly for adaptation traits, and to support conservation programs. It also provides challenges for the development of genomic assays and tools for use in African populations.

Nucleotide sequence and polymorphism of MHC class IIDQBexon 2 alleles in Chinese yakow (Bos grunniens × Bos taurus)

2014 ◽  
Vol 41 (3) ◽  
pp. 269-275 ◽  
Author(s):  
D. Xi ◽  
T. Hao ◽  
Y. He ◽  
J. Leng ◽  
Y. Sun ◽  
...  
Keyword(s):  
Nucleotide Sequence ◽  
Bos Taurus ◽  
Bos Grunniens
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