The Laboratory Rabbit

Adult male rabbits, wearing a plastic collar to prevent coprophagy, excreted soft faeces during the first half of the light phase, starting at about the time the light switched on at 0600. While soft faeces were being excreted, food intake was reduced considerably in collared as well as in non-collared animals. Rate of passage of gastrointestinal contents in the rabbit was extremely high. Chromic oxide appeared in the faeces 4-5 h after it had been ingested in pelleted food. Coprophagy had no effect upon the rate of passage of gastrointestinal contents, and chromic oxide passed through at the same rate, whether it was incorporated in soft faeces or in pelleted diet.

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Panting in small mammals: a comparison of two marsupials and the laboratory rabbit

Journal of Applied Physiology ◽

10.1152/jappl.1977.42.4.537 ◽

1977 ◽

Vol 42 (4) ◽

pp. 537-544 ◽

Cited By ~ 14

Author(s):

S. C. Nicol ◽

M. Maskrey

Keyword(s):

Oxygen Consumption ◽

New Zealand ◽

Rectal Temperature ◽

Oryctolagus Cuniculus ◽

Minute Volume ◽

Evaporative Heat Loss ◽

Thermoneutral Zone ◽

New Zealand White Rabbits ◽

Laboratory Rabbit ◽

Potorous Tridactylus

By use of a barometric technique, tidal volume (VT), minute volume (VE), respiratory frequency (f), and respiratory evaporative heat loss (Eex) were measured from conscious unrestrained potoroos (Potorous tridactylus), barred bandicoots (Perameles gunnii), and New Zealand white rabbits (Oryctolagus cuniculus) at temperatures in and above the thermoneutral zone (TNZ). Rectal temperature (Tre) and oxygen consumption were also measured. VT initially decreased with rising Ta, but in the potoroo and rabbit it then increased past the resting level. VE increased much more in the marsupials than in the rabbit, and higher Eex maxima were also found for the marsupials. The marsupials had high Q10's above the TNZ, and had a panting efficiency of 80%. The rabbits had a Q10 of 1.9 above the TNZ and 100% panting efficiency. The high VE and Eex and low panting efficiency of the marsupials may be due to their lower Tre which allows transfer of heat from the environment to the animal.

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The Development of Acquired Resistance and Age Resistance to Nematodirus battus in the Laboratory Rabbit

Journal of Helminthology ◽

10.1017/s0022149x00027395 ◽

1973 ◽

Vol 47 (4) ◽

pp. 369-376 ◽

Cited By ~ 4

Author(s):

G. J. Gallie

Keyword(s):

Population Density ◽

Host Response ◽

Acquired Resistance ◽

The Other ◽

Significant Protection ◽

Subsequent Challenge ◽

Laboratory Rabbit ◽

Patent Infection

Four groups of 8 rabbits were infected with a range of doses of N. bath's larvae. The percentage recoveries of worms from groups receiving 100 and 1000 larvae were significantly greater than those from groups receiving 10000 and 50000 larvae. It is suggested that the worm population density is dependent on the degree of host response stimulated by the initial larval dose.Experience of a chemically abbreviated patent infection of N. batlus gave significant protection to a group of 8 rabbits against establishment of worms from subsequent challenge compared with inexperienced controls.Rabbits aged 5 months and 11 weeks were as susceptible to the establishment of worms as rabbits aged 7½ weeks; but age resistance vas manifested by the greater proportion of worms which developed to the fifth stage in the worm populations of the youngest group than in the other 2 groups.

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