Results 1 to 10 of about 21,157 (146)

A Reference Genome Assembly of Simmental Cattle, Bos taurus taurus. [PDF]

open access: yesJ Hered, 2021
Abstract Genomics research has relied principally on the establishment and curation of a reference genome for the species. However, it is increasingly recognized that a single reference genome cannot fully describe the extent of genetic variation within many widely distributed species.
Heaton MP   +17 more
europepmc   +6 more sources

Recombinant bovine somatotropin in the synchronization of ovulation in crossbred dairy cows (Bos taurus indicus × Bos taurus taurus). [PDF]

open access: yesVet World, 2019
Aim: The aim of this study was to evaluate the effects of the administration of recombinant bovine somatotropin (rbST) at the moment of implementation of the timed artificial insemination protocol, on follicular dynamics and pregnancy rate in crossbred cows.
Oliveira FA   +4 more
europepmc   +5 more sources

Oocyte quality in adapted Bos taurus taurus cows

open access: yesAnimal Biotechnology, 2023
The objective of the current study was to determine the performance of creole cows of the Chino Santandereano breed in the ultrasound-guided follicular aspiration technique (OPU) and the quality of oocytes recovered. A total of 15 multiparous cows were selected from a herd located in the department of Santander with tropical climate.
Diego Armando Vega   +1 more
openaire   +2 more sources

Bos taurus genome assembly [PDF]

open access: yesBMC Genomics, 2009
Abstract Background We present here the assembly of the bovine genome. The assembly method combines the BAC plus WGS local assembly used for the rat and sea urchin with the whole genome shotgun (WGS) only assembly used for many other animal genomes including the rhesus macaque ...
Liu, Yue   +15 more
openaire   +4 more sources

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

open access: yesBMC Genomics, 2020
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 ...
N. Z. Gebrehiwot   +4 more
doaj   +1 more source

Genome-Wide Scan Identifies Selection Signatures in Chinese Wagyu Cattle Using a High-Density SNP Array

open access: yesAnimals, 2019
Selective breeding can lead to genetic diversity and diverse phenotypes in farm animals. Analysis of the genomic regions under selection can provide important insights into the genetic basis of complex traits.
Zezhao Wang   +12 more
doaj   +1 more source

Functional morphology and adaptive significance of the mucous membrane of the corners of the mouth in ruminants [PDF]

open access: yesBIO Web of Conferences, 2022
Using the methods of scanning electron microscopy, morphological and functional features of the mucous membrane of the corners of the mouth in representatives of Bovinae cattle [Bos taurus taurus] with normal and insufficient nutrition and their adaptive
Khatsaeva Raisa   +2 more
doaj   +1 more source

Abordagem multivariada envolvendo características físicas e morfológicas do sêmen bovino, idade dos touros e época de colheita de sêmen A multivariate approach for physical and morphological characteristics of cattle semen, age of bull and semen collection period

open access: yesRevista Brasileira de Zootecnia, 2009
Avaliaram-se as relações entre características físicas e morfológicas do sêmen de bovinos das subespécies Bos taurus taurus e Bos taurus indicus com a idade dos touros e a época de colheita do sêmen.
Antônio Rodrigues da Silva   +3 more
doaj   +1 more source

SEQUENCIAMENTO E ANÁLISE DOS GENES DAS SUBUNIDADES ALFA E BETA DO HORMÔNIO FOLÍCULO ESTIMULANTE DE BOVINO (Bos taurus indicus)

open access: yesCiência Animal Brasileira, 2008
Este trabalho relata uma clonagem e seqüenciamento das subunidades alfa e beta do hormônio folículo estimulante de Bos taurus indicus. Também apresenta os resultados de comparação realizada das seqüências gênicas dessas cadeias com as seqüências das ...
Ângela Patrícia Santana   +3 more
doaj   +1 more source

Mitochondrial DNA of Nellore and European x Nellore crossing cattle of high performance DNA mitocondrial de bovinos Nelore e cruzados Europeu x Nelore de alto desempenho

open access: yesPesquisa Agropecuária Brasileira, 2007
The objective of this work was to evaluate, through a polymorphism in the ND5 gene of the bovine mitochondrial DNA, the frequency of Bos taurus indicus mtDNA individuals in a sample of Nellore purebred origin animals (n = 69) and crossbred animals ...
Rogério Abdallah Curi   +2 more
doaj   +1 more source

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