Rodentia, Caviidae, Caviinae)
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Characterization of the Estrous Cycle in Galea Spixii (Wagler, 1831)1
Pesq. Vet. Bras. 35(1):89-94, janeiro 2015 DOI: 10.1590/S0100-736X2015000100017 Characterization of the estrous cycle in Galea spixii (Wagler, 1831)1 Amilton C. Santos2, Diego C. Viana2, Bruno M. Bertassoli3, Gleidson B. Oliveira4, Daniela M. Oliveira2, Ferdinando V.F. Bezerra4, Moacir F. Oliveira4 and Antônio C. Assis-Neto2* ABSTRACT.- Santos A.C., Viana D.C., Bertassoli B.M., Oliveira G.B., Oliveira D.M., Bezerra F.V.F., Oliveira M.F. & Assis-Neto A.C. 2015. Characterization of the estrous cycle in Galea spixii (Wagler, 1831). Pesquisa Veterinária Brasileira 35(1):89-94. Setor de Anatomia dos Animais Domésticos e Silvestres, Faculdade de Medicina Veterinária e Zootecnia, Univer- sidade de São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 87, São Paulo, SP 05508-030, Brazil. E-mail: [email protected] The Galea spixii inhabits semiarid vegetation of Caatinga in the Brazilian Northeast. They are bred in captivity for the development of researches on the biology of reproduction. The- refore, the aim of this study is characterize the estrous cycle of G. spixii, in order to provide information to a better knowledge of captive breeding of the species. The estrous cycle was monitored by vaginal exfoliative cytology in 12 adult females. After the detection of two complete cycles in each animal, the same were euthanized. Then, histological study of the vaginal epithelium, with three females in each phase of the estrous cycle was performed; three other were used to monitor the formation and rupture of vaginal closure membrane. five were paired with males for performing the control group for estrous cycle phases, and- te cells in proestrus, intermediate and parabasal cells, with neutrophils, in diestrus and me- testrusBy vaginal respectively exfoliative was cytology, found. -
Non Conventional Livestock for Better Livelihood: Prospects of Domestic Cavy in Mixed Production Systems of Tanzania
Non Conventional Livestock for Better Livelihood: Prospects of Domestic Cavy in Mixed Production Systems of Tanzania D. M. Komwihangilo1, F. Meutchieye2, N. S. Urassa1, E. Chang’a3, C. S. Kasilima4 , L. F. Msaka1 and E. J. M. Shirima5 1Tanzania Livestock Research Institute (TALIRI), Mpwapwa 2University of Dschang, Faculty of Agronomy and Agricultural Sciences, Department of Animal Production, Cameroon 3TALIRI Mabuki, Mwanza and University of New England, Australia 4Mpwapwa District Council, Mpwapwa 5Ministry of Livestock and Fisheries Development, Dar es Salaam Corresponding author: [email protected] Abstract: Similar to majority of Sub-Saharan African countries, Tanzania depends largely on small and large ruminants, poultry and seafood to meet its animal protein needs. While most of the non- conventional protein sources are hunted, domestication of some of the species is equally promoted because hunting harvests cannot provide sustainable and affordable meats. Meanwhile, there have been growing demands for white meats, especially among the middle and high income population classes, exacerbated by changes in eating and living habits. Recent reports have identified domestic cavy (Cavia porcellus L.) as a right delicacy. This small pseudo ruminant that is also referred to as guinea pig or as Pimbi or Simbilisi in Kiswahili, is adopted in rural and urban households in Tanzania. This paper highlights on prospects of production of cavies focusing on the mixed production systems of Central Tanzania, where identified farmers keep a few cavy families either in own pens in a compound or within living houses of owners. Results indicated that farmers have such major reasons as keeping cavies for food (37%) or cash income (33%). -
Dolichotis Patagonum (CAVIOMORPHA; CAVIIDAE; DOLICHOTINAE) Mastozoología Neotropical, Vol
Mastozoología Neotropical ISSN: 0327-9383 ISSN: 1666-0536 [email protected] Sociedad Argentina para el Estudio de los Mamíferos Argentina Silva Climaco das Chagas, Karine; Vassallo, Aldo I; Becerra, Federico; Echeverría, Alejandra; Fiuza de Castro Loguercio, Mariana; Rocha-Barbosa, Oscar LOCOMOTION IN THE FASTEST RODENT, THE MARA Dolichotis patagonum (CAVIOMORPHA; CAVIIDAE; DOLICHOTINAE) Mastozoología Neotropical, vol. 26, no. 1, 2019, -June, pp. 65-79 Sociedad Argentina para el Estudio de los Mamíferos Argentina Available in: https://www.redalyc.org/articulo.oa?id=45762554005 How to cite Complete issue Scientific Information System Redalyc More information about this article Network of Scientific Journals from Latin America and the Caribbean, Spain and Journal's webpage in redalyc.org Portugal Project academic non-profit, developed under the open access initiative Mastozoología Neotropical, 26(1):65-79, Mendoza, 2019 Copyright ©SAREM, 2019 Versión on-line ISSN 1666-0536 http://www.sarem.org.ar https://doi.org/10.31687/saremMN.19.26.1.0.06 http://www.sbmz.com.br Artículo LOCOMOTION IN THE FASTEST RODENT, THE MARA Dolichotis patagonum (CAVIOMORPHA; CAVIIDAE; DOLICHOTINAE) Karine Silva Climaco das Chagas1, 2, Aldo I. Vassallo3, Federico Becerra3, Alejandra Echeverría3, Mariana Fiuza de Castro Loguercio1 and Oscar Rocha-Barbosa1, 2 1 Laboratório de Zoologia de Vertebrados - Tetrapoda (LAZOVERTE), Departamento de Zoologia, IBRAG, Universidade do Estado do Rio de Janeiro, Maracanã, Rio de Janeiro, Brasil. 2 Programa de Pós-Graduação em Ecologia e Evolução do Instituto de Biologia/Uerj. 3 Laboratorio de Morfología Funcional y Comportamiento. Departamento de Biología; Instituto de Investigaciones Marinas y Costeras (CONICET); Universidad Nacional de Mar del Plata. -
IGUAZU FALLS Extension 1-15 December 2016
Tropical Birding Trip Report NW Argentina & Iguazu Falls: December 2016 A Tropical Birding SET DEPARTURE tour NW ARGENTINA: High Andes, Yungas and Monte Desert and IGUAZU FALLS Extension 1-15 December 2016 TOUR LEADER: ANDRES VASQUEZ (All Photos by Andres Vasquez) A combination of breathtaking landscapes and stunning birds are what define this tour. Clockwise from bottom left: Cerro de los 7 Colores in the Humahuaca Valley, a World Heritage Site; Wedge-tailed Hillstar at Yavi; Ochre-collared Piculet on the Iguazu Falls Extension; and one of the innumerable angles of one of the World’s-must-visit destinations, Iguazu Falls. www.tropicalbirding.com +1-409-515-9110 [email protected] p.1 Tropical Birding Trip Report NW Argentina & Iguazu Falls: December 2016 Introduction: This is the only tour that I guide where I feel that the scenery is as impressive (or even surpasses) the birds themselves. This is not to say that the birds are dull on this tour, far from it. Some of the avian highlights included wonderfully jeweled hummingbirds like Wedge-tailed Hillstar and Red-tailed Comet; getting EXCELLENT views of 4 Tinamou species of, (a rare thing on all South American tours except this one); nearly 20 species of ducks, geese and swans, with highlights being repeated views of Torrent Ducks, the rare and oddly, parasitic Black-headed Duck, the beautiful Rosy-billed Pochard, and the mountain-dwelling Andean Goose. And we should not forget other popular bird features like 3 species of Flamingos on one lake, 11 species of Woodpeckers, including the hulking Cream-backed, colorful Yellow-fronted and minuscule Ochre-collared Piculet on the extension to Iguazu Falls. -
Patagonian Cavy (Patagonian Mara) Dolichotis Patagonum
Patagonian Cavy (Patagonian Mara) Dolichotis patagonum Class: Mammalia Order: Rodentia Family: Caviidae Characteristics: The Patagonian mara is a distinctly unusual looking rodent that is about the size of a small dog. They have long ears with a body resembling a small deer. The snout and large dark eyes are also unusual for a rodent. The back and upper sides are brownish grey with a darker patch near the rump. There is one white patch on either side of the rump and down the haunches. Most of the body is a light brown or tan color. They have long, powerful back legs which make them excellent runners. The back feet are a hoof like claw with three digits, while the front feet have four sharp claws to aid in burrowing (Encyclopedia of Life). Behavior: The Patagonian mara is just as unusual in behavior as it is in appearance. These rodents are active during the day and spend a large portion of their time sunbathing. If threatened by a predator, they will escape quickly by galloping or stotting away at speeds over 25 mph. The cavy can be found in breeding pairs that rarely interact with other pairs (Arkive). During breeding season, maras form large groups called settlements, consisting of many individuals sharing the same communal dens. Some large dens are shared by 29-70 maras (Animal Diversity). Reproduction: This species is strictly monogamous and usually bonded for life (BBC Nature). The female has an extremely short estrous, only 30 minutes every 3-4 months. The gestation period is around 100 days in the wild. -
Middle Miocene Rodents from Quebrada Honda, Bolivia
MIDDLE MIOCENE RODENTS FROM QUEBRADA HONDA, BOLIVIA JENNIFER M. H. CHICK Submitted in partial fulfillment of the requirements for the degree of Master of Science Thesis Adviser: Dr. Darin Croft Department of Biology CASE WESTERN RESERVE UNIVERSITY May, 2009 CASE WESTERN RESERVE UNIVERSITY SCHOOL OF GRADUATE STUDIES We hereby approve the thesis/dissertation of _____________________________________________________ candidate for the ______________________degree *. (signed)_______________________________________________ (chair of the committee) ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ (date) _______________________ *We also certify that written approval has been obtained for any proprietary material contained therein. Table of Contents List of Tables ...................................................................................................................... ii List of Figures.................................................................................................................... iii Abstract.............................................................................................................................. iv Introduction..........................................................................................................................1 Materials and Methods.........................................................................................................7 -
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REPRODUCTION IN FEMALE WILD GUINEA-PIGS J. P. ROOD and BARBARA J. WEIR Department ofZoology, MichiganState University, East Lansing, Michigan, U.S.A. and Wellcome Institute of Comparative Physiology, Zoological Society of London, Regent's Park, London, jV. W. 1 (Received 10th December 1969) Summary. The breeding characteristics of three species of wild guinea- pig (F. Caviidae) are reported. Cavia aperea, Galea musteloides and Micro- cavia australis were studied in Argentina in the field and in outdoor pens, and laboratory colonies of the two former species were also established in England. Pens of domestic guinea-pigs (Cavia porcellus) and of C. aperea \m=x\C. porcellus hybrids were maintained in Argentina for comparisons with C. aperea. C. aperea and G. musteloides gave birth in every month but there was a breeding peak in spring (September to December). Microcavia had a more restricted breeding season ; in the field study area, births occurred only between August and April. Gestation length in C. aperea was variable but the mode was at 61 days, while the modes of Galea and Microcavia were much shorter at 53 and 54 days, respectively. All three species exhibited a post-partum oestrus and Galea may experience a lactation anoestrus. Oestrous cycle lengths in C. aperea and Galea varied consider- ably but the mean length in Cavia was 20\m=.\6\m=+-\0\m=.\8days and in Galea it was 22\m=.\3\m=+-\1 \m=.\4days; in the latter species, the presence of a male in the same cage was necessary for the induction of oestrus. Average litter size was 2\m=.\2for C. -
Rodent Societies
Chapter 23 Nonparental Infanticide Luis A. Ebensperger and Daniel T. Blumstein Male marmot 100 moved into the Grass Group. Male 69 siops truncatus, Patterson et al. 1998), giant otters (Ptero- seemed to oppose 100’s sudden entry, but the females of the nura brasiliensis, Mourão and Carvalho 2001), hippos group appeared to accept 100. Before male 100 moved in (Hippopotamus amphibius, Lewison 1998), plains zebras there were 9 healthy marmot pups crawling around the Grass (Equus burchelli, Pluhácˇek and Bartosˇ 2000), sportive le- Group’s main burrows. Within two weeks there was one in- murs (Lepilemur edwarsi, Rasoloharijaona et al. 2000), and jured marmot pup limping around—apparently avoiding mar- suricates (Suricata suricatta, Clutton-Brock et al. 1998). mot 100. The injured pup did not survive hibernation. (Blum- Infanticide has been noted in the wild or under labora- stein 1993:14) tory conditions in two species of hystricognath rodents and 35 species of sciurognath rodents (table 23.1). Despite the A female invaded an adjacent coterie territory and entered a difficulty of observing and quantifying infanticide in these burrow containing a recently emerged, healthy juvenile. The typically semifossorial and often nocturnal species, we know marauder emerged 5 minutes later with a distinctly bloody face, a considerable amount about the proximate regulation, evo- and then showed licking the front claws [behavior]. Several lution, and function of infanticide in rodents. Understand- minutes later the disoriented juvenile emerged with fresh, se- ing the causes and consequences of infanticide in rodents vere wounds on the face and neck. The juvenile disappeared a provides a basis for developing and testing alternative hy- few days later. -
The First Capybaras (Rodentia, Caviidae, Hydrochoerinae) Involved in the Great American Biotic Interchange
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/273407350 The First Capybaras (Rodentia, Caviidae, Hydrochoerinae) Involved in the Great American Biotic Interchange Article in AMEGHINIANA · March 2015 DOI: 10.5710/AMGH.05.02.2015.2874 CITATIONS READS 7 366 3 authors: María Guiomar Vucetich Cecilia M. Deschamps National University of La Plata National University of La Plata 93 PUBLICATIONS 1,428 CITATIONS 54 PUBLICATIONS 829 CITATIONS SEE PROFILE SEE PROFILE María Encarnación Pérez Museo Paleontológico Egidio Feruglio 32 PUBLICATIONS 249 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Origin, evolution, and dynamics of Amazonian-Andean ecosystems View project All content following this page was uploaded by Cecilia M. Deschamps on 11 March 2015. The user has requested enhancement of the downloaded file. ! ! ! ! ! ! ! ! ! ! ! doi:!10.5710/AMGH.05.02.2015.2874! 1" THE FIRST CAPYBARAS (RODENTIA, CAVIIDAE, HYDROCHOERINAE) 2" INVOLVED IN THE GREAT AMERICAN BIOTIC INTERCHANGE 3" LOS PRIMEROS CARPINCHOS (RODENTIA, CAVIIDAE, HYDROCHOERINAE) 4" PARTICIPANTES DEL GRAN INTERCAMBIO BIÓTICO AMERICANO 5" 6" MARÍA GUIOMAR VUCETICH1, CECILIA M. DESCHAMPS2 AND MARÍA 7" ENCARNACIÓN PÉREZ3 8" 9" 1CONICET; División Paleontología Vertebrados, Museo de La Plata, Paseo del Bosque 10" s/n, 1900, La Plata, Argentina. [email protected] 11" 2CIC Provincia de Buenos Aires; División Paleontología Vertebrados, Museo de La 12" Plata, Paseo del Bosque s/n, 1900, La Plata, Argentina. [email protected] 13" 3Museo Paleontológico Egidio Feruglio, Av. Fontana 140, U9100GYO Trelew, 14" Argentina. [email protected] 15" 16" Pages: 22; Figures: 5. -
Hystrx It. J. Mamm. (Ns) Supp. (2007) V European Congress of Mammalogy
Hystrx It. J. Mamm . (n.s.) Supp. (2007) V European Congress of Mammalogy RODENTS AND LAGOMORPHS 51 Hystrx It. J. Mamm . (n.s.) Supp. (2007) V European Congress of Mammalogy 52 Hystrx It. J. Mamm . (n.s.) Supp. (2007) V European Congress of Mammalogy A COMPARATIVE GEOMETRIC MORPHOMETRIC ANALYSIS OF NON-GEOGRAPHIC VARIATION IN TWO SPECIES OF MURID RODENTS, AETHOMYS INEPTUS FROM SOUTH AFRICA AND ARVICANTHIS NILOTICUS FROM SUDAN EITIMAD H. ABDEL-RAHMAN 1, CHRISTIAN T. CHIMIMBA, PETER J. TAYLOR, GIANCARLO CONTRAFATTO, JENNIFER M. LAMB 1 Sudan Natural History Museum, Faculty of Science, University of Khartoum P. O. Box 321 Khartoum, Sudan Non-geographic morphometric variation particularly at the level of sexual dimorphism and age variation has been extensively documented in many organisms including rodents, and is useful for establishing whether to analyse sexes separately or together and for selecting adult specimens to consider for subsequent data recording and analysis. However, such studies have largely been based on linear measurement-based traditional morphometric analyses that mainly focus on the partitioning of overall size- rather than shape-related morphological variation. Nevertheless, recent advances in unit-free, landmark/outline-based geometric morphometric analyses offer a new tool to assess shape-related morphological variation. In the present study, we used geometric morphometric analysis to comparatively evaluate non-geographic variation in two geographically disparate murid rodent species, Aethmoys ineptus from South Africa and Arvicanthis niloticus from Sudan , the results of which are also compared with previously published results based on traditional morphometric data. Our results show that while the results of the traditional morphometric analyses of both species were congruent, they were not sensitive enough to detect some signals of non-geographic morphological variation. -
Acta Veterinaria Brasilica Stereology of Spix's Yellow-Toothed Cavy Brain (Galea Spixii, WAGLER, 1831)
Acta Veterinaria Brasilica September 12 (2018) 94-98 Acta Veterinaria Brasilica Journal homepage: https://periodicos.ufersa.edu.br/index.php/acta/index Original Article Stereology of spix's yellow-toothed cavy brain (Galea spixii, WAGLER, 1831) Ryshely Sonaly de Moura Borges¹, Luã Barbalho de Macêdo², André de Macêdo Medeiros³, Genilson Fernandes de Queiroz³, Moacir Franco de Oliveira³, Carlos Eduardo Bezerra de Moura³* 1 Aluna de graduação em Medicina Veterinária, Universidade Federal Rural do Semi-Árido (UFERSA). 2 Programa de Pós-Graduação em Ciências Animais, Universidade Federal Rural do Semi-Árido (UFERSA). 3 Departamento de Ciência Animal (DCA), Centro de Ciências Agrárias, Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, RN, Brasil. ARTICLE INFO ABSTRACT Article history Spix's Yellow-toothed Cavy is a histrichomorphic rodent of the Caviidae family found in South American countries such as Brazil and Bolivia. It is a widely-used species as Received 23 March 2018 an experimental model in research in reproductive biology due to morphological and Received in revised form 26 November reproductive characteristics, such as the similarity in the placental development of 2018 Galea spixii and human species. However, there are no studies on the behavior of this Accepted 10 December 2018 species or on its brain morphology. Considering the lack of information in the literature about the brain and internal structures of Galea spixii, this study aimed to Keywords: stereologic evaluate the brain as well as the volumetric proportions of the Caviidae hippocampus and corpus callosum. Therefore, ten healthy animals were used from the Morphology Wild Animal Multiplication Center of the Universidade Federal Rural do Semiárido. -
List of 28 Orders, 129 Families, 598 Genera and 1121 Species in Mammal Images Library 31 December 2013
What the American Society of Mammalogists has in the images library LIST OF 28 ORDERS, 129 FAMILIES, 598 GENERA AND 1121 SPECIES IN MAMMAL IMAGES LIBRARY 31 DECEMBER 2013 AFROSORICIDA (5 genera, 5 species) – golden moles and tenrecs CHRYSOCHLORIDAE - golden moles Chrysospalax villosus - Rough-haired Golden Mole TENRECIDAE - tenrecs 1. Echinops telfairi - Lesser Hedgehog Tenrec 2. Hemicentetes semispinosus – Lowland Streaked Tenrec 3. Microgale dobsoni - Dobson’s Shrew Tenrec 4. Tenrec ecaudatus – Tailless Tenrec ARTIODACTYLA (83 genera, 142 species) – paraxonic (mostly even-toed) ungulates ANTILOCAPRIDAE - pronghorns Antilocapra americana - Pronghorn BOVIDAE (46 genera) - cattle, sheep, goats, and antelopes 1. Addax nasomaculatus - Addax 2. Aepyceros melampus - Impala 3. Alcelaphus buselaphus - Hartebeest 4. Alcelaphus caama – Red Hartebeest 5. Ammotragus lervia - Barbary Sheep 6. Antidorcas marsupialis - Springbok 7. Antilope cervicapra – Blackbuck 8. Beatragus hunter – Hunter’s Hartebeest 9. Bison bison - American Bison 10. Bison bonasus - European Bison 11. Bos frontalis - Gaur 12. Bos javanicus - Banteng 13. Bos taurus -Auroch 14. Boselaphus tragocamelus - Nilgai 15. Bubalus bubalis - Water Buffalo 16. Bubalus depressicornis - Anoa 17. Bubalus quarlesi - Mountain Anoa 18. Budorcas taxicolor - Takin 19. Capra caucasica - Tur 20. Capra falconeri - Markhor 21. Capra hircus - Goat 22. Capra nubiana – Nubian Ibex 23. Capra pyrenaica – Spanish Ibex 24. Capricornis crispus – Japanese Serow 25. Cephalophus jentinki - Jentink's Duiker 26. Cephalophus natalensis – Red Duiker 1 What the American Society of Mammalogists has in the images library 27. Cephalophus niger – Black Duiker 28. Cephalophus rufilatus – Red-flanked Duiker 29. Cephalophus silvicultor - Yellow-backed Duiker 30. Cephalophus zebra - Zebra Duiker 31. Connochaetes gnou - Black Wildebeest 32. Connochaetes taurinus - Blue Wildebeest 33. Damaliscus korrigum – Topi 34.