Laboratory animals: The equation of supply and demand

1965 ◽  
Vol 3 ◽  
pp. 25-35
Author(s):  
J.S. Paterson
Keyword(s):  
Supply And Demand ◽  
Laboratory Animals

scholarly journals A Method for Calculating the Area of Breeding and Growing Accommodation Required for a Given Output of Small Laboratory Animals

1968 ◽  
Vol 2 (2) ◽  
pp. 121-130 ◽  
Author(s):  
Michael Festing ◽  
John Bleby
Keyword(s):  
Supply And Demand ◽  
Stocking Density ◽  
Laboratory Animals ◽  
Small Laboratory ◽  
Growing Stock ◽  
Working Space

A method is given for the calculation of the area of animal accommodation needed to produce a given output of small laboratory animals. This method depends on determining the number of cages needed according to productivity, the age of animals at time of use, the proportion of animals not suitable for use, and the stocking density of the growing stock for the output needed. The area needed to hold this number of cages can then be calculated according to the shelf length taken by the cages, working space required, numbers of tiers of cages, and the proportion of animals that will be wasted due to fluctuations in supply and demand. An example is given and compared with actual results, and the effects of errors in the estimation of some of the variables are discussed.

scholarly journals Exploration of the Characteristics of Animal Supply and Demand in University Experimental Teaching Pratice

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Yongshi Cao
Keyword(s):  
Supply And Demand ◽  
Colleges And Universities ◽  
Laboratory Animals ◽  
Demand Characteristics ◽  
Experimental Animals ◽  
Vital Importance ◽  
Teaching Objectives ◽  
Experimental Teaching ◽  
Teaching Tasks

The supply and demand of laboratory animals for teaching in colleges and universities has its own internal characteristics. To grasp the supply and demand characteristics of laboratory animals for teaching is of vital importance to the planning, supply and use of teaching animals, the realization of teaching objectives and the completion of teaching tasks. Based on the supply of teaching experimental animals and the work of animal experimental teaching in our university in recent years, this paper expounds the inherent characteristics and practice of supply and demand of teaching experimental animals.

Marshallian Cross: An Alternative Justification and Related Issues

2013 ◽  
pp. 108-120 ◽  
Author(s):  
L. Grebnev
Keyword(s):  
Alternative Treatment ◽  
Supply And Demand ◽  
Firm Level ◽  
Economics Courses ◽  
Introductory Economics

The paper provides a justification of the laws of supply and demand using the concept of a marginal firm (technology) for the case of perfect competition.The ideological factor of excessive attention to the analysis of marginal parameters at the firm level in the introductory economics courses is discussed. The author connects these issues to the ideas of J. B. Clark and gives an alternative treatment of exploitation.

Determination of acute toxicity of Tiacyclin solution for injection in laboratory animals

2019 ◽  
Vol 331 (8) ◽  
pp. 25-27
Author(s):  
N.Y. Morozov ◽  
◽  
S.I. Tchukina ◽  
E.I. Koveshnikova ◽  
◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Laboratory Animals

Anesthesia for rabbits submitted to experimental surgeries: Report of a series of eight anesthesias

2020 ◽  
pp. 151-158
Author(s):  
Rafael Antonio Caldart Bedin ◽  
Maisa Schultz ◽  
Antonio Bedin
Keyword(s):  
Muscle Relaxation ◽  
Anesthetic Management ◽  
Laboratory Animals ◽  
Average Weight ◽  
Anesthetic Induction ◽  
Anesthetic Agents ◽  
Reasonable Degree ◽  
Bioethical Debate ◽  
Precordial Stethoscope

Anesthesia for laboratory animals is a matter of biomedical concern and one of the most present dilemmas in the current bioethical debate. The use of anesthetic agents in experimental surgery aims at analgesia and restraining the animal, in order to achieve a reasonable degree of muscle relaxation and to produce sufficient analgesia. This practice requires the use of protocols for the administration of safe and efficient doses. Eight New Zealand rabbits were submitted to laparotomies demonstrating the surgical technique discipline of the local medical course. For pre-anesthetic medication, acepromazine 1 mg.kg-1 associated with ketamine 15 mg.kg-1 was used subcutaneously. Anesthesia was maintained with isoflurane and oxygen under a laryngeal mask in a Mapleson D anesthesia system and under spontaneous breathing. Hydration was performed with 10 ml.kg-1 saline every hour. A thermal mattress was used. Precordial stethoscope, pulse oximetry and clinical parameters were used for monitoring. For euthanasia, ketamine 10 mg.kg-1 associated with potassium chloride 19.1% 1 ml.kg-1 was used intravenously. The average weight of the rabbits was 2721.25 ± 275.01 grams and the duration of the anesthetic procedure was 120 ± 87 minutes. Discussion. In long-term anesthesia, such as laparotomies, the use of pre-anesthetic medication and then anesthetic induction by the combination of agents is recommended. However, anesthetic management requires monitoring to prevent insufficient or excessive doses from occurring.

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