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Radiographic pelvimetry in pacas (Agouti paca, Linnaeus, 1766)

Grant number: 13/25975-4
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Start date: March 01, 2014
End date: February 28, 2015
Field of knowledge:Agronomical Sciences - Veterinary Medicine - Animal Clinics and Surgery
Principal Investigator:Fabrício Singaretti de Oliveira
Grantee:Nathalia Franzoni Smargiassi
Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

The pelvimetry is the metric determination of the pelvic dimensions and its use is directly connected with reproduction. In pacas, the pelvis is tight, elongated and composed by a pair of ilium, ischium and pubis. The cartilage´s time of closure varies according to each bone, and some can close during intrauterine life, while some can persist for many years. The aim of this research is to exam, through radiography, the age at which the closure of bone centers calcify in the ilium, ischium and pubis, as well as the pelvic evolution by means of pelvimetry in the first 12 months of life in the paca, the second largest Brazilian rodent, and an animal that has gained recent great scientific interest in many studies. Then, 8 animals, or the maximum of animals that may be born during the research, which will be evaluated with radiographs every month from their birth until the age of 12 months or when the cartilage closure of ilium, ischium and pubis happens. The animals will be sedated with meperidine (2.5mg/kg) and diazepam (0.5 mg/kg) with intramuscular injection, and anaesthesiated with ketamine (20mg/kg) and xylazine (1.5mg/kg). The radiographs will be analyzed from the youngest to the oldest animal.

News published in Agência FAPESP Newsletter about the scholarship:
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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
N.F. SMARGIASSI; I.C.C. LIPPI; R.G.S. OLIVEIRA; M.R.F. MACHADO; T.H.C. SASAHARA; C.C.C. SANTOS; F.S. OLIVEIRA. Pelvimetria radiográfica em pacas de 0 a 24 meses de idade (Agouti paca, Linnaeus, 1766). Arquivo Brasileiro de Medicina Veterinária e Zootecnia, v. 71, n. 4, p. 1293-1298, . (13/25975-4, 15/07073-9)