Results 71 to 80 of about 75,105 (304)

Análise histológica e histoquímica de cistos intra-epiteliais de tubas uterinas de novilhas mestiças Histological and histochemical analysis of intraepithelial cysts of the uterine tubes of crossbred heifers

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2005
Tubas uterinas de 21 novilhas mestiças Bos taurus taurus × Bos taurus indicus, em diferentes fases do ciclo estral natural (estro, metaestro e diestro) ou induzido pelo tratamento superovulatório (estro e metaestro superovulados), foram avaliadas ...
G.R. Valle   +4 more
doaj   +1 more source

Expressão de genes ligados à maciez da carne em bovinos da raça Nelore. [PDF]

open access: yes, 2015
Dentre as características da carne, a maciez é a mais desejada pelo consumidor. Bovinos de origem Bos taurus indicus são conhecidos por produzirem carne de menor maciez quando comparado às raças de origem taurina.
CARVALHO, M. E.   +5 more
core  

The impacts of biological invasions

open access: yesBiological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

A Partial African Ancestry for the Creole Cattle Populations of the Caribbean [PDF]

open access: yes, 2017
Seventy-eight cattle samples from three Creole Caribbean islands and one Brazilian breed were analyzed for sequence variation in the hypervariable segment of the mitochondrial DNA control region. Seventy-three samples displayed Bos taurus haplotypes, and
Bradley, D. G.   +8 more
core  

Advances in Double‐Stranded DNA Targeting Technologies

open access: yesExploration, EarlyView.
Double‐stranded DNA (dsDNA) plays a crucial role in genetic information storage and disease management, but its inherent stability limits access to internal bases. To overcome this challenge, various high‐specificity molecular targeting technologies have been developed to destabilize the DNA structure.
Zuhao Shen   +8 more
wiley   +1 more source

Genetic group and heterosis on morphometric measurements during the growth of male beef cattle

open access: yesSemina: Ciências Agrárias, 2016
In the present study, the effects of genetic group and heterosis on body measurements of purebreds (Charolais - C and Nellore - N), first-generation crossbreds (G1) (1/2C1/2N and 1/2N1/2C), and second-generation crossbreds (G2) (3/4C1/4N and 3/4N1/4C ...
Ricardo Zambarda Vaz   +7 more
doaj   +1 more source

Faunas mamalógicas do sítio pós-orientalizante do Cabeço Redondo (Sobral da Adiça, Moura) [PDF]

open access: yes, 2013
Resultados da análise dos restos faunísticos recuperados em 2011, na escavação arqueológica do sítio do Cabeço Redondo (Moura, Beja), cuja cronologia aponta para o século V a.C.
Cardoso, João Luís   +1 more
core  

The role of the gut microbiome in the regulation of high‐altitude adaptation

open access: yesiMeta, EarlyView.
This study is the first to elucidate mechanisms of high‐altitude adaptation from the perspective of the rumen ecosystem by using indigenous yaks and Holstein cows that have lived at high altitude since birth as comparative models. Through a systematic comparison of their rumen ecology using multi‐omics approaches—including rumen metagenomics ...
Xinyu Zhang   +6 more
wiley   +1 more source

Comparisons of \u3ci\u3eBos indicus\u3c/i\u3e and \u3ci\u3eBos taurus\u3c/i\u3e Inheritance for Carcass Beef Characteristics and Meat Palatability [PDF]

open access: yes, 1993
Crossbreeding is used widely to exploit heterosis and additive genetic variation among breeds to improve efficiency of beef production. The economic value of Bos indicus breeds of cattle, primarily Brahman, in crossbreeding programs in subtropical and ...
Crouse, John D.   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy