Results 41 to 50 of about 21,241 (227)

Morphological dimorphism in the Y chromosome of "pé-duro" cattle in the Brazilian State of Piauí

open access: yesGenetics and Molecular Biology, 1999
"Pé-duro" (hard foot) is a rare breed of beef cattle of European (Bos taurus taurus) origin, originated in northern and northeastern Brazil. Y chromosome morphology, outer genital elements and other phenotypic characteristics were examined in 75 "pé-duro"
Carmen M.C. Britto, Maria Luiza S. Mello
doaj   +1 more source

Diversity and evolution of 11 innate immune genes in Bos taurus taurus and Bos taurus indicus cattle [PDF]

open access: yesProceedings of the National Academy of Sciences, 2009
The Toll-like receptor ( TLR ) and peptidoglycan recognition protein 1 ( PGLYRP1 ) genes play key roles in the innate immune systems of mammals. While the TLRs recognize a variety of invading pathogens and induce innate immune responses, PGLYRP1
Christopher M, Seabury   +5 more
openaire   +2 more sources

Genetic diversity and effective population sizes of thirteen Indian cattle breeds

open access: yesGenetics Selection Evolution, 2021
Background The genetic structure of a diverse set of 15 Indian indigenous breeds and non-descript indigenous cattle sampled from eight states was examined, based on 777 k single nucleotide polymorphism (SNP) genotypes obtained on 699 animals, with sample
Eva M. Strucken   +5 more
doaj   +1 more source

Synaptomenal Complex Analysis of Four Breeds ofBos Taurus Taurus x B. Taurus IndicusHybrids [PDF]

open access: yesHereditas, 2000
The synaptonemal complex (SC) was analyzed in four F1 hybrids of Bos taurus taurus and B. taurus indicus including Gyr-Simmental (G-S), Nelore Simmental (N-S), Gyr-Holstein-Friesian (G-H) and Nelore-Piemontese (N-P). We analysed the frequency of various types of SC abnormalities and the frequency of cells with SC abnormalities.
Scavone, Marcia D. P.   +3 more
openaire   +3 more sources

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

open access: yesThe Anatomical Record, EarlyView.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano   +3 more
wiley   +1 more source

From armadillos to sloths: Patterns and variations in xenarthran coronary anatomy

open access: yesThe Anatomical Record, EarlyView.
Abstract Species of the superorder Xenarthra play a vital ecological role in the Neotropics. Despite their evolutionary significance, anatomical studies on their coronary circulation remain scarce. This study investigated the coronary anatomy of 82 hearts from nine Xenarthra species across the Dasypodidae, Myrmecophagidae, and Bradypodidae.
Wilson Viotto‐Souza   +5 more
wiley   +1 more source

Rethinking brachycephaly: Anatomical implications and health considerations in lagomorphs

open access: yesThe Anatomical Record, EarlyView.
Abstract Brachycephaly in domestic rabbits is increasingly perceived by welfare organizations as associated with significant health complications, particularly oral pathologies. Despite this perception, comparative anatomical research into rabbit brachycephaly is limited compared to that of dogs and cats, compelling an in‐depth examination of its ...
Helaina Cressy   +3 more
wiley   +1 more source

Sequenciamento e análise dos genes das subunidades alfa e beta do hormônio folículo estimulante de bovino (Bos taurus indicus) Sequencing and analysis of subunits alpha and beta of the follicle stimulating hormone from bovine (Bos taurus indicus)

open access: yesCiência Animal Brasileira, 2008
<span><p align="justify">Este trabalho relata uma clonagem e seqüenciamento das subunidades alfa e beta do hormônio folículo estimulante de <em>Bos taurus indicus.
Luci Sayori Murata   +3 more
doaj  

Descriptive, comparative, and functional anatomy of the facial musculature in cattle (Bos taurus)

open access: yesThe Anatomical Record, EarlyView.
Abstract Facial expressions can provide insight into animal emotions and pain, but no standardized system for assessing the entire facial display in cattle (Bos taurus Linnaeus) exists. The Facial Action Coding System (FACS), originally developed for humans, identifies distinct facial movements based on mimetic muscles.
Maja Söderlind   +6 more
wiley   +1 more source

Genetic Diversity, Adaptation, Wild Introgression, and Coat Color Mutation of Golden Yak

open access: yesAnimal Research and One Health, EarlyView.
Genetic diversity, adaptation, wild introgression, and coat color mutation of golden yak from two populations on the Qinghai‐Xizang Plateau. ABSTRACT The golden yak lives on the Qinghai‐Xizang Plateau with a golden coat and adapts to high altitudes and strong ultraviolet environment. The golden coat is a prominent phenotype in many domesticated species,
Huixuan Yan   +15 more
wiley   +1 more source

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