Sexually dimorphic measurements from stranded and bycaught specimens contribute to the characterization of group composition in free‐ranging common dolphins ( Delphinus spp.) from aerial images

2021 ◽  
Author(s):  
Samantha G. M. Leander ◽  
John W. Durban ◽  
Kerri Danil ◽  
Holly Fearnbach ◽  
Trevor W. Joyce ◽  
...  
Keyword(s):  
Group Composition ◽  
Aerial Images ◽  
Sexually Dimorphic ◽  
Free Ranging ◽  
Common Dolphins

Viability of Photo-Identification as a Tool to Examine the Prevalence of Lesions on Free-Ranging Common Dolphins (Delphinus sp.)

2017 ◽  
Vol 43 (3) ◽  
pp. 264-278 ◽  
Author(s):  
Krista E. Hupman ◽  
Matthew D. M. Pawley ◽  
Catherine Lea ◽  
Charli Grimes ◽  
Sabrina Voswinkel ◽  
...  
Keyword(s):  
Photo Identification ◽  
Free Ranging ◽  
Common Dolphins

scholarly journals Pathological and parasitological characterization of Prosthenorchis elegans in a free-ranging marmoset Callithrix geofroyi from the Brazilian Atlantic Forest

2017 ◽  
Vol 37 (12) ◽  
pp. 1514-1518
Author(s):  
Ayisa R. de Oliveira ◽  
Emy Hiura ◽  
Flaviana L. Guião-Leite ◽  
Mayra C. Flecher ◽  
Fábio R. Braga ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Intestinal Parasite ◽  
Brazilian Atlantic Forest ◽  
Primate Conservation ◽  
Neotropical Primates ◽  
Pathology Laboratory ◽  
Intestinal Lesions ◽  
Veterinary Pathology ◽  
Free Ranging

ABSTRACT: Prosthenorchis elegans is an acanthocephalan intestinal parasite reported in neotropical primates. Despite parasitism by P. elegans having already been described in wild marmosets in the Brazilian Atlantic Forest, there are no reports of this infection in wild Geoffroy’s marmoset (Callithrix geofroyi). The aim of this study is to report one case of P. elegans parasitism in a free-ranging C. geoffroyi from Brazilian Atlantic Forest in Espírito Santo state, and characterize the pathological and parasitological findings of this infection. One Geoffroy’s marmoset necropsied at the Vila Velha University’s Veterinary Pathology Laboratory presented intense chronic transmural ulcerative enteritis associated with twenty cylindrical helminths present in the jejunum and ileum. We can conclude that parasitism by P. elegans occurs in free-ranging groups of Geoffroy’s marmosets. Its infection produced severe intestinal lesions even in free-ranging marmoset and therefore is a threat to this animal’s survival in wildlife and can have some impact on primate conservation in the Brazilian Atlantic Forest.

scholarly journals Characterization of Key Sexually Dimorphic Regulators in Pain Processing

2019 ◽  
Author(s):  
Shahrzad Ghazisaeidi ◽  
Arun Ramani ◽  
Parisa Shooshtari ◽  
Amy Tu ◽  
Katherine Halievski ◽  
...  
Keyword(s):  
Sexually Dimorphic ◽  
Pain Processing

scholarly journals Detection and Genetic Characterization of Viruses Present in Free-Ranging Snow Leopards Using Next-Generation Sequencing

2020 ◽  
Vol 7 ◽  
Author(s):  
Örjan Johansson ◽  
Karin Ullman ◽  
Purevjav Lkhagvajav ◽  
Marc Wiseman ◽  
Jonas Malmsten ◽  
...  
Keyword(s):  
Next Generation Sequencing ◽  
Genetic Characterization ◽  
Next Generation ◽  
Snow Leopards ◽  
Free Ranging ◽  
Generation Sequencing

scholarly journals Morphometric Characterization of the Lidia Cattle Breed

Animals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1180
Author(s):  
Juan Manuel Lomillos ◽  
Marta E. Alonso
Keyword(s):  
Cattle Breed ◽  
Internal Variability ◽  
Morphological Characterization ◽  
Relative Depth ◽  
Sexually Dimorphic ◽  
Muscular Development ◽  
Morphological Differences ◽  
Positive Correlations ◽  
Morphometric Characterization

Morphometric studies in Lidia cattle are scarce due to the challenges of handling and approaching this breed of cattle. For this reason, the first morphological characterization of the Lidia breed was carried out using photogrammetry. In the present work, 264 adult individuals (184 males and 80 females), belonging to 21 different herds, were studied. A total of 20 morphological measurements and five indexes were determined in every individual. There were many positive correlations between the measures, giving the model great morphostructural harmony. Considerable internal variability of the studied parameters was observed. This breed reflected significant sexually dimorphic features and internal morphological differences between the different genetic lines of the breed. Lidia cattle are small and mostly have a sub-concave profile (58.4% males and 69.7% females). The male proportionality indexes and the relative depth of the thorax indicated great muscular development of the anterior third and high thoracic capacity. The phaneroptic information describes a mostly black animal with black mucous and hooves and an outstanding development of the dewlaps and the tail in the males.

Molecular and biological characterization ofToxoplasma gondiiisolates from free-range chickens from Guyana, South America, identified several unique and common parasite genotypes

Parasitology ◽  
2007 ◽  
Vol 134 (11) ◽  
pp. 1559-1565 ◽  
Author(s):  
J. P. DUBEY ◽  
L. APPLEWHAITE ◽  
N. SUNDAR ◽  
G. V. VELMURUGAN ◽  
L. A. BANDINI ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
South America ◽  
Rflp Markers ◽  
Free Range ◽  
Clonal Type ◽  
Modified Agglutination Test ◽  
Pcr Rflp ◽  
Free Ranging ◽  
Common Parasite

SUMMARYThe prevalence ofToxoplasma gondiiin free-ranging chickens (Gallus domesticus) is a good indicator of the prevalence ofT. gondiioocysts in the soil because chickens feed from the ground. The prevalence ofT. gondiiin 76 free-range chickens from Guyana, South America was determined. Antibodies toT. gondiiwere assayed by the modified agglutination test (MAT), and found in 50 (65·8%) of 76 chickens with titres of 1:5 in four, 1:10 in one, 1:20 in five, 1:40 in seven, 1:80 in six, 1:160 in eight, 1:320 in four, 1:640 or higher in 15. Hearts and brains of 26 chickens with titres of <1:5 were pooled in 5 batches and bioassayed in mice. Hearts and brains of 50 chickens with titres of 1:5 or higher were bioassayed in mice.Toxoplasma gondiiwas isolated by bioassay in mice from 35 chickens with MAT titres of 1:20 or higher. All mice inoculated with tissues of 30 infected chickens remained asymptomatic.Toxoplasma gondiiisolates from 35 chickens were genotyped using 11 PCR-RFLP markers including SAG1, SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1, a new SAG2, and Apico. A total of 9 genotypes were identified, with 5 genotypes (nos 1, 4, 5, 6 and 7) unique to Guyana, 2 genotypes (nos 2 and 3) previously identified in chickens from Brazil, 1 genotype (no. 8) previously identified in chickens from Brazil, Costa Rica and Nicaragua, and 1 genotype (no. 9) belonging to the clonal type III lineage that exists globally. Infection with 2 genotypes was found from 1 chicken. This is the first report of genetic characterization ofT. gondiiisolates from any host from Guyana.

scholarly journals Characterization of cDNAs encoding isoforms of hamster 3 beta-hydroxysteroid dehydrogenase/delta 5-->4 isomerase

1998 ◽  
Vol 20 (1) ◽  
pp. 99-110 ◽  
Author(s):  
FM Rogerson ◽  
J Courtemanche ◽  
A Fleury ◽  
JG LeHoux ◽  
JI Mason ◽  
...  
Keyword(s):  
Hydroxysteroid Dehydrogenase ◽  
Cdna Libraries ◽  
Sexually Dimorphic ◽  
High Affinity ◽  
Liver And Kidney ◽  
Low Levels ◽  
Type 3

Western blot analyses of various hamster tissues reveal high levels of expression of 3 beta-hydroxysteroid dehydrogenase (3 beta-HSD) in adrenal and liver, and moderate levels of expression in kidney. The expression in liver is sexually dimorphic; very high levels of protein are observed in adult male liver but very low levels are seen in the female liver. Three distinct cDNAs encoding isoforms of 3 beta-HSD were isolated from hamster cDNA libraries. The type 1 isoform is a high-affinity dehydrogenase/isomerase expressed in adrenal and male kidney. The type 2 isoform is also a high-affinity dehydrogenase/isomerase expressed in kidney and male liver. The type 3 enzyme is a 3-ketosteroid reductase expressed predominantly in kidney. Sequencing of the clones showed that all three are structurally very similar, although types 1 and 2 share the greatest degree of similarity. Immunohistochemical staining for 3 beta-HSD in the adrenal was found throughout the adrenal cortex. In the kidney staining was confined to tubules, and in the liver, heavy staining was found in hepatocytes. The cloning of cDNAs for 3 beta-HSD from the liver and kidney should help in elucidating the function of this enzyme in these tissues.

Social system of the Alaotran gentle lemur (Hapalemur griseus alaotrensis): genetic characterization of group composition and mating system

2002 ◽  
Vol 57 (4) ◽  
pp. 157-176 ◽  
Author(s):  
Caroline M. Nievergelt ◽  
Thomas Mutschler ◽  
Anna T.C. Feistner ◽  
David S. Woodruff
Keyword(s):  
Mating System ◽  
Social System ◽  
Group Composition ◽  
Genetic Characterization ◽  
Hapalemur Griseus
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