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ANATOMICAL ASPECTS OF THE PLACENTA OF THE SLOTH, Bradypus variegatus, SCHINZ, 1825 International Journal of Morphology
Accioly Lins Amorim,Marleyne José Afonso; Amorim Júnior,Adelmar Afonso de; Messias,Júlio Brando; Silva Júnior,Valdemiro Amaro de; Melo Berinson,Karina de.
Sloth plows euterians mammals, belonging to the order Edentata, sub-order Xenarthra, infra-order Tardigrada, family Bradipodidae, which comprehend three specimen, Bradypus tridadctylus, Bradypus variegates and Bradypus torquatus. They plows few work found in the literature related to the anatomy of the placenta of this specimen. The material used in this research was consisted of 3 placentas of Bradypus variegatus of adult females (Briton, 1941) original of the Forests of the City of Recife and Zone of the Forest of the State of Pernambuco with average weight 4,2 Kg. Placentas were fixed in buffered glutaraldehyed 4%, pH 7,4, 0,1M and processed goes optical microscopy. Macroscopically was observed that the placenta of the sloth is composed of discoidal...
Tipo: Journal article Palavras-chave: Placenta; Sloth; Anatomy; Bradypus variegatus.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000100002
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Brown-throated three-toed sloth (Bradypus variegatus Shinz, 1825) as a new host for Leiuris leptocephalus (Rud., 1819) Leuckard, 1850 Arq. Bras. Med. Vet. Zootec.
Werneck,M.R.; Baldassin,P.; Barbosa,C.B.; Silva,R.J..
Vinte e três espécimes de Leiuris leptocephalus (Rud., 1819) Leuckard 1850 (Spirocercidae) foram recuperados do intestino delgado de uma fêmea de preguiça comum, Bradypus variegatus Shinz 1825 (Bradipodidae), em Ubatuba, estado de São Paulo. Os dados demonstram maior variabilidade morfométrica em relação aos dados da literatura, o que contribui para a caracterização morfológica desse nematódeo. Essa comunicação corresponde ao primeiro relato de B. variegatus como hospedeiro de L. leptocephalus.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bradypus variegatus; Nematoda; Leiuris lepdocephalus; Sloth; Brazil.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000400036
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Electrocardiographic studies of the three-toed sloth, Bradypus variegatus BJMBR
Silva,E.M.; Duarte,D.P.F.; da Costa,C.P..
Electrocardiograms (ECG) obtained with standard limb leads and augmented unipolar limb leads were recorded from 17 unanesthetized adult sloths. The animals were held in their habitual position in an experimental chair. We determined heart rate and rhythm from the R-R intervals, the amplitude and duration of each wave, and the duration of the segments and intervals of the ECG. The mean electrical axes of P and T waves and QRS complex were calculated on the basis of the amplitude of these waves in leads I, II, III, aV R, aV L, and aV F. The P wave appeared positive in most tracings with low amplitude in lead II, the QRS complex was generally negative in leads aV R, III and aV F, and no arrhythmias were observed. With a mean ± SD heart rate for all recordings...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Sloth; Electrocardiogram; Heart rate.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001200018
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Fecal estradiol and progesterone metabolite levels in the three-toed sloth (Bradypus variegatus) BJMBR
Mühlbauer,M.; Duarte,D.P.F.; Gilmore,D.P.; da Costa,C.P..
The present study was carried out to assess the possibility of measuring fecal steroid hormone metabolites as a noninvasive technique for monitoring reproductive function in the three-toed sloth, Bradypus variegatus. Levels of the estradiol (E2) and progesterone (P4) metabolites were measured by radioimmunoassay in fecal samples collected over 12 weeks from 4 captive female B. variegatus sloths. The validation of the radioimmunoassay for evaluation of fecal steroid metabolites was carried out by collecting 10 blood samples on the same day as defecation. There was a significant direct correlation between the plasma and fecal E2 and P4 levels (P < 0.05, Pearson's test), thereby validating this noninvasive technique for the study of the estrous cycle in...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Sloth; Fecal estrogen and progestogen metabolites; Noninvasive monitoring; Estrous cycle; Fecal hormones.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000200017
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The effect of feeding on the respiratory activity of the sloth BJMBR
Pedrosa,M.A.C.; Lima,A.M.J.; Bezerra,A.P.; Duarte,D.P.F.; Da-Costa,C.P..
The aim of the present study was to confirm whether feeding influences the resting breathing rate and to observe possible alterations in blood gas and pH levels produced by feeding in unanesthetized sloths (Bradypus variegatus). Five adult male sloths (4.1 ± 0.6 kg) were placed daily in an experimental chair for a period of at least 4 h for sitting adaptation. Five measurements were made for each sloth. However, the sloths one, two and five were studied once and the sloths three and four were studied twice. Breathing rate was determined with an impedance meter and the output signal was digitized. Arterial blood samples were collected for blood gas analysis with a BGE electrolytes analyzer and adjusted for the animal's body temperature and hemoglobin...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Sloth; Bradypus variegatus; Feeding; Respiratory activity; Breathing rate; Arterial blood pH; PCO2 and PO2 levels.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000700014
Registros recuperados: 5
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