scholarly journals Acoustic characteristics of vocalisations emitted by the domestic rabbit (Oryctolagus cuniculus) during copula ejaculation and electro-ejaculation with or without anaesthesia

2019 ◽  
Vol 27 (3) ◽  
pp. 157
Author(s):  
A. Orihuela ◽  
R. Ungerfeld
Keyword(s):  
New Zealand ◽  
Oryctolagus Cuniculus ◽  
Acoustic Analysis ◽  
Aversive Stimulus ◽  
Adult Males ◽  
Acoustic Characteristics ◽  
Fundamental Frequencies ◽  
Domestic Rabbit ◽  
Domestic Rabbits ◽  
Number Of Males

Vocalisations can be used as reliable indicators of pain, but little information is available in rabbits, where acoustic tools for farming environments can be used for welfare judgements. The aim of this study was to compare vocalisations produced during copula ejaculation and electro-ejaculation (EE), with or without general anaesthesia, in domestic rabbits. Vocalisations of nine New Zealand white adult males were digitally recorded. The number of males vocalising and vocal characteristics including high, low, maximum and fundamental frequencies and duration of the vocalisations were analysed. There were no differences in the number of males vocalising or any vocalisation parameter between the 1<sup>st</sup> and 2<sup>nd</sup> ejaculation while copulating, even though the fundamental frequency increased in all males in the 2<sup>nd</sup> ejaculation (<em>P</em>=0.008). More males vocalised while mating than while being electro-ejaculated (<em>P</em>=0.03), and all vocalisation parameters were greater during EE than while mating (<em>P</em>=0.004). The use or not of anaesthesia during EE did not modify any of the parameters evaluated. It was concluded that: 1) more males vocalised during copula ejaculation than while being electro-ejaculated; 2) bio-acoustic analysis allowed us to identify aversive utterance vocalisations, which are characterised with higher frequencies, that those from non-aversive stimulus; and 3) at least with the anaesthetic combination and the responses studied, anaesthesia had no effect on the acoustic characteristics of the vocalisation emitted during EE in rabbits.

NUCLEOLAR ORGANIZER REGIONS IN THE RABBIT (ORYCTOLAGUS CUNICULUS) AS SHOWN BY SILVER STAINING

1978 ◽  
Vol 20 (3) ◽  
pp. 377-382 ◽  
Author(s):  
Patricia A. Martin-Deleon ◽  
Dorene L. Petrosky ◽  
M. Eileen Fleming
Keyword(s):  
New Zealand ◽  
Silver Staining ◽  
Oryctolagus Cuniculus ◽  
Nucleolar Organizer ◽  
Nucleolar Organizer Regions ◽  
Telomeric Region ◽  
Metaphase Chromosomes ◽  
Domestic Rabbit ◽  
Silver Precipitation ◽  
Secondary Constrictions

Nucleolar organizer regions (NOR's) were demonstrated in metaphase chromosomes of the domestic rabbit, Oryctolagus cuniculus (L.) (New Zealand white strain) using silver staining. Sequential quinacrine banding and a modification of the Ag-AS silver precipitation technique with duplicate photography allowed identification of silver staining NOR's on the short arms of chromosomes 13, 16, and 20, as well as the telomeric region of the long arms of number 21 in some cells. Chromosomes 13, 16 and 20 all have subterminal to terminal centromeres, often showed satellites and secondary constrictions, and were sometimes involved in associations.

scholarly journals Investigation of gastrintestinal parasites in rabbits of the species Oryctolagus cuniculus in the Northwest region of São Paulo, Brazil

2021 ◽  
Vol 10 (10) ◽  
pp. e468101019130
Author(s):  
Débora Regina Romualdo da Silva ◽  
Sandra Valéria Inácio ◽  
Walter Bertequini Nagata ◽  
Carolina Beatriz Baptista ◽  
Ana Paula Fernezi Bassi ◽  
...  
Keyword(s):  
New Zealand ◽  
Oryctolagus Cuniculus ◽  
Chloride Solution ◽  
Sodium Chloride Solution ◽  
Adult Males ◽  
Specific Density ◽  
Saturated Sodium Chloride Solution ◽  
Eimeria Spp ◽  
Northwest Region ◽  
First Time

Enteroparasites can be pathogenic for the rabbit population and for this reason, we have investigated its occurrence in bioterium of rabbits. The sample group was composed of 103 adult males of the species Oryctolagus cuniculus and New Zealand breed. Fecal samples (n = 103) were processed using the Willis Techniques (Fluctuation in saturated sodium chloride solution with specific density of 1.20 g/mL) and Faust (Centrifugal-flotation in zinc sulphate with density of 1.18 g/ml). The diameters of larger and smaller sizes of the sporocysts and sporozoites of the coccidia were measured by means of optical microscopy using the program CellSens 1.17_00_en_Rhine_13Feb2017. The Faust Technique showed positivity of 39.74% (31/78) for Eimeria spp, while in Willis Technique, 35.90% (28/78) was observed for Eimeria spp, being the species Eimeria perforans and in 51.28% (47/78) of them there was no parasitism. We identified, for the first time, the occurrence of the specie E. perforans in rabbits of the species O. cuniculus, New Zealand breed kept in a bioterium. Therefore, it is extremely important for the implantation of parasitic control of rabbits kept in bioterium for scientific purposes, the monitoring of possible infections by means of periodic coproparasitological exams.

Acoustic Characteristics of Speech Produced Without Oral Sensation

1973 ◽  
Vol 16 (1) ◽  
pp. 67-77 ◽  
Author(s):  
Yoshiyuki Horii ◽  
Arthur S. House ◽  
Kung-Pu Li ◽  
Robert L. Ringel
Keyword(s):  
Speech Processing ◽  
High Frequency ◽  
Acoustic Analysis ◽  
Continuous Speech ◽  
Acoustic Characteristics ◽  
Frequency Distributions ◽  
Fundamental Frequencies ◽  
Long Time ◽  
Short Time ◽  
Nerve Block Anesthesia

The acoustic characteristics of continuous speech produced by an adult male talker with and without oral (nerve block) anesthesia were investigated using digital speech processing procedures. Vowel-to-consonant ratios, long-time and short-time spectra, fundamental frequency distributions, phonation-time ratios, and rate of utterances were calculated and compared for the normal and anesthetized conditions. The results showed that the speech produced without oral sensation was characterized by a reduction and shift of high-frequency energy, temporal disorganization primarily manifested as prolongation of utterance, and higher and more variable fundamental frequencies. The study also demonstrated applicability of computer techniques on general acoustic analysis of continuous speech.

scholarly journals Dental anesthesia in small mammals on the example of domestic rabbits

2017 ◽  
Vol 73 (4) ◽  
pp. 208-213
Author(s):  
Maria Chmurska ◽  
Natalia Sowińska ◽  
Agnieszka Pietsch-Fulbiszewska
Keyword(s):  
Surgical Treatment ◽  
Local Anesthesia ◽  
Small Mammals ◽  
Oryctolagus Cuniculus ◽  
Companion Animal ◽  
Medical Procedure ◽  
Research Model ◽  
Dental Anesthesia ◽  
Domestic Rabbit ◽  
Domestic Rabbits

The domestic rabbit (Oryctolagus cuniculus f. domesticus) has become a very popular companion animal kept at present in Europe. Dental problems in rabbits are prevalent. The medical procedure in these patients is based primarily on surgical treatment, which is associated with pain during treatment. This paper aims to familiarize readers with the techniques of local anesthesia, which can be used in dentistry of the domestic rabbit. The study summarizes the specifics of the anatomy of the rabbit skull. On the basis of original papers, in which the domestic rabbit or other small mammals were the research model, the drugs used for local anesthesia and techniques of local anesthesia with possible complications have been described in the present work.

scholarly journals Effect of Diclofenac (Voltaren) in histological structure of kidney in male Rabbits (Oryctolagus cuniculus )

2011 ◽  
Vol 8 (1) ◽  
pp. 197-201
Author(s):  
Baghdad Science Journal
Keyword(s):  
Blood Vessels ◽  
Oryctolagus Cuniculus ◽  
Diclofenac Sodium ◽  
Control Group ◽  
Histological Structure ◽  
Adult Males ◽  
Kidney Tubules ◽  
Negative Effects ◽  
Domestic Rabbits

This study was designed to know the effect of Diclofenac sodium (voltaren) drug on the histological composition of kidney in domestic rabbits . Twelve adult males with (1.4) kg weight . The first group of animals administrated orally by 1 ml of Voltaren with 6 mg/kg , while the second group with (1) ml of distal water (as control group ) . the administrated continue for (60) days sequentially. The treatment with voltaren showed pathological cases in tissues and cells of kidney including necrosis, infilteration ,congestion in blood vessels edema.Also epithelial separation in kidney tubules in comparison with control group Conclusion from the above results, revealed that voltaren had negative effects on the kidney tissues in local males rabbits .

scholarly journals Autochthonous Transmission of Angiostrongylus Cantonensis in a Domestic Rabbit (Oryctolagus Cuniculus) in Hawai`i: Detection in Multiple Tissues Using AcanITS1 and AcanR3990 PCR Assays

2022 ◽  
Author(s):  
Susan Jarvi ◽  
Kirsten Snook ◽  
Alfred Mina ◽  
Malia Lyons ◽  
Sarah Ortega ◽  
...  
Keyword(s):  
Oryctolagus Cuniculus ◽  
Buffy Coat ◽  
Angiostrongylus Cantonensis ◽  
Domestic Rabbit ◽  
Rat Lungworm ◽  
The Usa ◽  
Pcr Assays ◽  
Domestic Rabbits ◽  
The Brain ◽  
Autochthonous Transmission

Abstract Background: Hawaii is the hotspot for rat lungworm disease (angiostrongyliasis) caused by the nematode Angiostrongylus cantonensis in the USA. In humans, PCR of the CSF is typically used for diagnosis, however, collection of CSF requires hospitalization. Here, we evaluate the efficacy of two different PCR tests to detect A.cantonensis DNA in multiple tissues including blood from a rabbit presumably infected by eating contaminated lettuce. Methods: Two different PCR assays (AcanR3990, and AcanITS1) were used comparatively to test DNA extracted from slug and rabbit tissues. Assays were conducted using established protocols and were run in triplicate, with negative (dH20) controls included throughout. Results: A juvenile Parmarian martensi (semi-slug) found in local lettuce tested positive for the presence of Angiostrongylus cantonensis DNA. A family and their two domestic rabbits (Oryctolagus cuniculus) consumed this lettuce twice within the five days preceding testing. One rabbit exhibited symptoms consistent with eosinophilic meningitis 3-6 days after being fed the lettuce. Appropriate veterinary treatment was ineffective and the rabbit was subsequently euthanized. This study comparatively applies two different PCR assays to detect A. cantonensis DNA in the peripheral blood, cerebrospinal fluid, brain, heart, and lung tissue of this rabbit, and provides data implicating parasite transmission via contaminated home-grown lettuce. Six of the nine brain DNA samples, as well as the CSF sample, tested positive in replicate or triplicate for A. cantonensis DNA with both PCR assays. The AcanR3990 assay also detected A. cantonensis DNA from the lung, heart septum, all nine samples from the brain, and blood products (plasma, EDTA-treated whole blood, and buffy coat/red blood cells) in replicate or triplicate.

scholarly journals Application of Double-Threaded Locking Adaptation Plates used to Repair a Radius and Ulna Fracture in a Domestic Rabbit (Oryctolagus Cuniculus)

VCOT Open ◽  
2020 ◽  
Vol 03 (02) ◽  
pp. e182-e186
Author(s):  
Anthony Malak ◽  
Andrew S. Levien
Keyword(s):  
Case Report ◽  
Clinical Significance ◽  
Oryctolagus Cuniculus ◽  
Clinical Report ◽  
Locking Plates ◽  
Case Description ◽  
Domestic Rabbit ◽  
Implant Complications ◽  
Osseous Union ◽  
Ulna Fractures

Abstract Objective This study is a case description of the clinical application of locking plates to repair fractures in the radius and ulna of a 9-month-old, male domestic rabbit. Study Design This study is a case report. Results Double-threaded locking adaptation plates of 1.5 mm were fixated to the radius and ulna of the rabbit using the principles of orthogonal plating. Radiographs of the left radius and ulna were obtained at 8 weeks postoperatively depicting complete osseous union of the fracture and no implant complications were observed. Clinical Significance The authors describe the first clinical report of 1.5 mm locking adaptation plates having been used in repairing radius and ulna fractures in a domestic rabbit.

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