Chinchilla Post (1956-2002) ONLINE

AUSGEWÄHLTE BÜCHER

• Gute Bücher für Einsteiger und Liebhaber
•  

AUSGEWÄHLTE AUTOREN

• Jaime E. Jimenez (Chile)
• Dr. med. vet. Juliana Bartl
• Prof. Dr. Clement (CP)
• Dr. Egen (CP)
• Prof. Dr. med. vet. Kraft (CP)
• Dr. David Crossley (UK)

2008 wurden gleich zwei Chinchilla Bücher von Fachleuten für Chinchilla Heimtierhalter veröffentlicht.

• Dr. Juliana Bartl : CHINCHILLAS, GU-Ratgeber, 2008. 64 Seiten. 7,90 Euro.
• Guido Schweigart : CHINCHILLAS, 2008. 142 Seiten. 36,80 Euro.

Beide Bücher richten sich an Einsteiger, Halter und Liebhaber von Chinchillas.
Leicht verständlich, übersichtlich, kompetent.

Die Autoren haben eine fachlich Ausbildung und sind selbst Chinchilla Halter und Liebhaber seit vielen Jahren. Und darüber hinaus behandeln sie als Tierärzte diese Tiere mit den verschiedensten Krankheitsbildern tagtäglich in persönlicher Verantwortung und Fürsorge. Was will man mehr an qualifizierten Hintergrund. :-)

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Harry Eckardt : Das große Handbuch der Chinchillazucht
Erstmals erschienen 1963. Letzte Auflage 1974

Edmund Bickel : Südamerikanische Chinchillas
Erstmals erschienen 1956. 3. Aufl. 1983

Prof. Dr. med. vet. Helmut Kraft : Krankheiten der Chinchillas
Erstmals erschienen 1962. Letzte Auflage 1994

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Hier finden sich neben den CP Autoren auch ausgewählte externe Autoren, die aus unserer Sicht Wissenswertes zum Chinchilla - aktuell und international - beitragen.

• Dr. David Crossley ( UK )
• Jaime E. Jimenez ( Chile )
• Dr. med. vet. Juliana Bartl
• Prof. Dr. Clement
• Dr. Egen
• Prof. Dr. med. vet. Kraft

Manual of Small Animal Dentistry, Second edition. 1996 BSAVA, Cheltenham, UK
Self-Assessment Colour Review of Small Mammals. 1997 Manson Publishing, London
Atlas de Odontologia en Pequenos Animales. 1998 Gras Edicions, Editores Medicos SA, Madrid
Clinical Dentistry of Rodents and Rabbits (Language: Japanese). 1999 Pharm Press Co Ltd, Japan
Self Assessment Colour Review of Veterinary Dentistry. 1999 Manson Publishing, London, UK
Kirk's Current Veterinary Therapy XIII. 2000 WB Saunders, Philadelphia
Atlas of Veterinary Dental Radiology. 2000 Iowa State University Press
Manual of Exotic Pets, 4th edition. 2002 BSAVA, Cheltenham, UK
VCNA Exotic Animal Practice: Oral Biology, Dental and Beak Disordersas of Veterinary Dental Radiology. 2003 Saunders
Ferrets, Rabbits and Rodents: Clinical Medicine and Surgery. 2004 Saunders St Louis

Journal of Veterinary Dentistry, 1994, 12:3, 111-113
Journal of Veterinary Dentistry, 1995, 12:4, 137-140
Journal of Veterinary Dentistry, 1995, 12:4, 131-135
Veterinary Record, 1997, 141, 337-339
Journal of Small Animal Practice, 1998, 39, 385-389
UK Vet, 1999, 4:2, 54-59
Veterinary Record, 1999, 145, 585-586
Archives of Oral Biology, 2001, 46:10, 919-928
Journal of Small Animal Practice, 2001, 42:1, 12-19
UK Vet, 2001, 6:4, 13-19
UK Vet, 2001, 6:5, 87-94
VCNA, Exotic Animal Practice, 2003, 6:3, 506 + 629-659.

Dental Disease in Chinchillas (Dissertation, 2003) von David Crossley (UK)
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Summary / Abstract

CARIES AND ODONTOCLASTIC RESORPTIVE LESIONS IN A CHINCHILLA (Chinchilla lanigera)
Crossley DA, Dubielzig RR, Benson KG

Summary:
It is well recognised that domesticated chinchillas (Chinchilla lanigera) suffer from a range of dental problems, the most frequent of which is the result of reduced and uneven coronal wear of the premolar and molar (cheek) teeth with resultant root elongation and secondary malocclusion (Crossley 1995 + 1997). Although rarely detected clinically, destruction of dental hard tissue can often be recognised at post-mortem and in prepared skulls. This paper reports the histological confirmation of caries and odontoclastic resorptive lesions in a chinchilla.

Veterinary Record, 1997, 141:13 337-9

THE SITE OF OBSTRUCTION OF THE LACRIMAL DRAINAGE SYSTEM IN CHINCHILLAS (Chinchilla lanigera) WITH "wet eyes"
Crossley DA, Roxburgh G

Introduction: A common clinical problem seen in chinchillas (Chinchilla lanigera) is "wet eyes" due to lacrimal overflow.
Aim: To investigate the site or sites of obstruction of the lacrimal drainage system in chinchillas showing signs of lacrimal overflow.
Method: Radiography, CT scanning, anatomical dissection, and histological examination of affected animals. signs of lacrimal overflow.
Results: The main site of obstruction of lacrimal drainage is in the descending portion of the lacrimal canal between the orbit and the incisor tooth root apex. Bony remodelling around elongating maxillary premolar and first two molar tooth roots intrudes into the lacrimal canal compressing and sometimes occluding or even obliterating the lacrimal canal and duct. No evidence has been found for obstruction adjacent to the incisor root apices in the specimens examined so far.
Discussion: Lacrimal drainage in healthy chinchillas is similar to that in other rodents. This species is adapted to a highly abrasive herbivorous diet, having continuously growing cheek teeth (in addition to the continuously growing incisors). When these teeth are not worn adequately, i.e. when domestic animals are fed commercial diets, the teeth continue to elongate. Eventually occlusal pressure prevents eruption, so the roots intrude inducing remodelling of adjacent tissue including the lacrimal canal.
Conclusions: Chinchillas should be fed a herbivorous diet which requires prolonged chewing in order to wear the teeth adequately.

Clinical research abstract, Proceedings,
British Small Animal Veterinary Association Congress 1999

ANATOMY OF THE CHINCHILLA (Chinchilla lanigera) LACRIMAL DRAINAGE SYSTEM
Crossley DA, Roxburgh G,

Introduction: Chinchillas (Chinchilla lanigera) are becoming popular as pets. A common clinical sign seen in chinchillas is "wet eyes" due to lacrimal overflow.
Aim: To investigate the normal anatomy of the lacrimal drainage system in the chinchilla to enable further study into the causes of lacrimal overflow.
Method: Clinical examination, radiography and CT scanning, plus anatomical dissection, histological examination and photography of available post-mortem specimens.
Results: There are two lacrimal punctae at the medial canthus of each eye. After a short distance these drain into the single lacrimal duct that enters a bony lacrimal canal. The lacrimal duct is lined by epithelial cells including a proportion of mucus secreting goblet cells. The bony lacrimal canal passes diagonally rostro-ventrally past the root apices of the more rostral cheek teeth, continues towards the root apex of the incisor tooth. The lacrimal canal narrows and passes medial to the incisor then alters direction, continuing a short distance rostro-dorsally with the lacrimal duct continuing several millimetres to enter the nasal chamber just inside the nares.
Conclusions: Lacrimal drainage in chinchillas appears similar to that in other rodents and the rabbit. The point most likely to become obstructed appears to be adjacent to the incisor tooth root, as occurs in rabbits. A further study is investigating the site of obstruction in animals with "wet eyes".

Clinical research abstract, Proceedings,
British Small Animal Veterinary Association Congress 1999

DENTAL DISEASE IN CHINCHILLAS IN THE UK
David A. Crossley

Abstract: Dental abnormalities are common in chinchillas, however, knowledge of the nature and relative incidence of the lesions responsible for clinical signs is incomplete. Animals, radiographs and/or prepared specimens were examined to gain further knowledge regarding dental anatomy and dental disease in the UK chinchilla population.
Thirty five percent of the apparently healthy chinchillas examined had dental abnormalities detectable on routine examination. The range and relative incidence of different dental abnormalities encountered in these and clinically affected animals are presented. Whilst malocclusion was a common finding, in all but one case this was secondary to crown elongation or absence of opposing teeth, not a primary skeletal problem.
Clinical signs commonly attributed to malocclusion, such as ventral mandibular swelling, weight loss, dysphagia, altered chewing pattern and changed food preferences, are not specific to malocclusion. They are seen associated with tooth root elongation, spike formation on the sides of the occlusal surfaces and advanced periodontal lesions. Caries and odontoclastic resorptive lesions rarely cause obvious clinical signs but were identified regularly. Congenital absence of cheek teeth, true skeletal malocclusion and pathological loss of incisor teeth all resulted in significant clinical signs but were rarely seen.
Lack of dietary abrasion and stress are probably the main aetiological factors for the most prevalent dental problem, cheek tooth elongation. Combination of provision of a diet matching that eaten by wild animals and reducing stress levels of captive chinchillas should reduce the incidence of dental disease in this species.

Summary: Dental abnormalities are common in chinchillas, but knowledge of the lesions responsible for clinical signs is incomplete. Animals bred in the United Kingdom were examined to gain further knowledge of dental disease in this chinchilla population. Dental abnormalities, particularly those related to tooth elongation, were detected on careful external examination of thirty-five percent of apparently healthy chinchillas. Incisor abnormalities were seen on clinical examination in fifty-five percent of chinchillas presented because of clinical illness. In all but one case this was secondary to crown elongation of the cheek teeth or absence of opposing teeth, not a primary skeletal problem. Clinical signs commonly attributed to malocclusion, such as ventral mandibular swelling, weight loss, dysphagia, altered chewing pattern and changed food preferences, are not specific to malocclusion, being seen associated with coronal spike formation, root elongation and advanced periodontal lesions, the latter being difficult to diagnose in live animals. Caries and resorptive lesions rarely caused clinical signs in this population, but were identified during thirty-seven percent of post-mortem examinations. Congenital absence of teeth, skeletal malocclusion and pathological loss of teeth all resulted in significant clinical signs but were rare. It is concluded that provision of a diet with physical properties more closely matching that of wild chinchillas should improve the dental health of captive animals.

Journal of Small Animal Practice 2001, 42:1, 12-19  

SKULL SIZE AND CHEEK TOOTH LENGTHS IN WILD AND CAPTIVE CHINCHILLA POPULATIONS
David A. Crossley and Maria del Mar Miguélez

Summary:
Chinchillas are herbivorous rodents with teeth that all grow continuously. In captivity they are commonly affected by dental disease. Since the range of dental disease occurring in wild chinchillas is unknown, the dentition of museum specimens originally obtained from the wild was assessed and compared with specimens prepared from captive bred animals.
Skulls from wild-caught chinchillas showed minimal evidence of dental disease and the teeth were all short, cheek tooth lengths averaging 5.9 mm. Cheek tooth lengths in zoo specimens (average 6.6 mm), clinically normal (average 7.4 mm) and captive bred animals with dental disease (average 10 mm) were significantly elongated by comparison (p < 0.0001). Captive bred specimens showed a wide range of tooth related lesions.
These results suggest that some aspect of captivity is responsible for the development of dental disease in chinchillas. It is suggested that the diet (its physical form and composition) is the main etiological factor, and that provision of a diet closely matching that of wild chinchillas should significantly reduce the incidence of dental disease in captive chinchillas.

Archives of Oral Biology 2001, 46:10, 919-928
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Haematology and serum biochemistry in chinchillas
by D. A. Crossley

SUMMARY
Blood testing is routinely used for health assessment in species for which normal ranges are known. Insufficient data is available for many exotic species including chinchillas. Chinchillas are susceptible to a wide range of disorders so blood testing is expected to be a useful clinical tool for this species. Although basic haematology parameters have been published, little work appears to have been done on serum chemistry. Blood samples were collected from clinically healthy and diseased chinchillas, and submitted to a commercial veterinary laboratory. Haematology and serum chemistry analyses were performed in order to furnish reference ranges and to assess whether such tests were of value in the early diagnosis of dental disease in chinchillas. Some parameters showed wide variations between animals. Variation was not found to be related to age, sex, a history of fur chewing or the presence of early dental lesions. High serum creatinine kinase levels occurred in animals which struggled during capture with other parameters varying most in animals with advanced diseased.

NOTE: The reference will be added on publication.

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Jaime E. Jiménez
THE EXTIRPATION AND CURRENT STATUS OF WILD CHINCHILLAS Chinchilla lanigera AND C. Brevicaudata (1995)
Zum Status der wilden Chinchillas in der Natur.
Ungekürzte Originalfassung des Artikels (in Englisch). Inkl. Tabellen, Statistiken, inkl.  umfangreichem Literaturverzeichnis, etc.

Jaime E. Jiménez, u.a.
Original Investigation / ursprüngliche Untersuchung
SEASONAL FOOD HABITS OF THE ENDANGERED LONG-TAILED CHINCHILLA ( chinchilla lanigera ) : THE EFFECT OF PRECIPITATION (2002)
Die originale Untersuchung in voller Länge.
Inkl. detaillierter Auflistung und umfassender Tabellen zur Nahrungsaufnahme von :
- Gesträuch und Büschen
- Kräutern
- Sukkulenten ( = Saftpflanzen )
- Sonstigen wie z.B. Samen.
Zusammenfassung auf Deutsch. Sowie umfangreiches Literaturverzeichnis, etc.)

Jaime E. Jiménez, u.a.
NUMERICAL AND FUNCTIONAL RESPONSE OF PREDATORS TO A LONG-TERM DECLINE IN MAMMALIAN PREY AT A SEMI-ARID NEOTROPICAL SITE (1992)
Alles zu den natürlichen Feinden von Chinchillas und ihren Verwandten.
Ungekürzte Originalfassung (Englisch) inkl. aller Statistiken und Tabellen, ausführliches Literaturverzeichnis.

Jaime E. Jiménez
CONSERVATION OF THE LAST WILD CHINCHILLA ( Chinchilla lanigera ) ARCHIPELAGO : A METAPOPULATION APPROACH (1995)
Ein Aufruf das NATIONAL CHINCHILLA RESERVAT ( NCR ) zu erweitern, wie er fachlich fundierter nicht ausgearbeitet sein könnte.
Ungekürzte Originalfassung (Englisch, Spanisch, Portugiesisch) inkl. zahlreicher Tabellen, Statistiken und originalen Fotos. Ausführliches Literaturverzeichnis.

Jaime E. Jiménez, u.a.
CHINCHILLA LANIGER (2004)
Chinchilla Lanigera von A-Z, Historie, Genetik, Einteilungen usw.
Inkl. umfangreichstes Literaturverzeichnis zum Thema in der Fachliteratur.

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