Basic biological data

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Physiologic Values

Physiologic values for rabbits
Life span: 6–13 years
Urine volume: 20–250 mL/kg/24 h. Usually about 130 ml/kg/24 h
Water intake: 50–100 mL/kg/24 h
Oxygen use 0.4–0.85 mL/g/hr
Optimum environmental temperature: 15–20°C (65–70°F)
Rectal temperature:
38.5–40°C (103.3–104°F)
38.0°C (100.4°F)
40.6°C (105°F)
Heart rate: 130–325 bpm
Respiratory rate: 32–60 bpm
Erythrocyte life span: 50 days
Blood volume: 55–65 mL/kg
Blood pressure: 90–130/60–90 mm Hg
Tidal volume: 20 mL (4–6 mL/kg)
Gastrointestinal transit time: 4–5 hr
Intraocular pressure: 5–23 mmHg
Reproductive data
Puberty: 4–5 months in small breeds
5–8 months in large breeds
Descent of testicles: 10–12 weeks
Age at which to neuter: >3 months for males;
>5 months for females
Interval between castration and infertility: 4 weeks
Pregnancy diagnosis: Palpation: 10–12 days
Radiologically after 11 days
Gestation: 30–32 days
Litter size: Average 5–8
Milk composition: 13–15% protein, 10–12% fat and 2% carbohydrate
Birth weight: 40–100 g
Eyes open: 7 days
Weaning: 4–6 weeks

Harcourt-Brown, F. (2001). Textbook of rabbit medicine. (1st ed.).
Oglesbee, B. (2011). Blackwell's five-minute veterinary consult: Small mammal. (2nd ed.).

Serum Biochemistry Values

Reference ranges for serum biochemistry values of rabbits
Serum protein 2.8–10.0 g/dL
Albumin (Alb)
2.7–4.6 g/dL
1.5–2.8 g/dL
0.2–0.4 g/dL
Serum glucose 75–150 mg/dL
Blood urea nitrogen (BUN) 15.0–23.5 mg/dL
Creatinine (Cr, CREAT) 0.5–2.5 mg/dL
Total bilirubin (T Bil) 0.25–0.74 mg/dL
Serum lipids 280–350 mg/dL
Phospholipids 75–113 mg/dL
Triglycerides (TGL, Trig) 124–156 mg/dL
Cholesterol 18–35 mg/dL
Calcium (Ca) 5.6–12.5 mg/dL
Phosphorus (PHOS, PO4) 4.0–6.9 mg/dL
Alanine aminotransferase (ALT) 48–80 U/L
Aspartate aminotransferase (AST) 14–113 U/L
Alkaline phosphatase (ALP, AP, Alk Phos) 4–16 U/L

Oglesbee, B. (2011). Blackwell's five-minute veterinary consult: Small mammal. (2nd ed.).

Hematologic Values

Hematologic values of rabbits
Erythrocytes 4–7.2 × 106/mm3
Hematocrit 36–48%
Hemoglobin 10.0–15.5 mg/dL
Leukocytes 7.57–13.5 × 103/mm3
Platelets 200-–1000 × 103/mm3

Oglesbee, B. (2011). Blackwell's five-minute veterinary consult: Small mammal. (2nd ed.).

Hormone Values

Hormone values of rabbits
T3 - Triiodothyronine T3
130–143 ng/dL [1.997–2.1967 nmol/L] (Suckow, 2012)
T4 - Thyroxine T4
1.7–2.4 μg/dL [21.9–30.9 nmol/L] (Suckow, 2012)
1.7–2.4 μg/dL [21.9–30.9 nmol/L] (Laboklin, Dec 2017)
3.9–5.3 μg/dL [50.9–68.2 nmol/L] (Laboklin, Sep 2017)
6.4–8.3 μg/dL [82.4–106.8 nmol/L] (Jones, 1975)

Suckow, Stevens, & Wilson (2012). The Laboratory Rabbit, Guinea Pig, Hamster, and Other Rodents (American College of Laboratory Animal Medicine). (1st ed.).
Laboklin Diagnostik GmbH & Co. KG. Reference values on test results for T4 (vor1.), Update results based on ~1000 samples take between 2015-2017 in Europe, December 2017, (older: September 2017.) Laboklin results used with direct permission from Katka Pruskova. Please contact her with any other T3/T4 information to help her rabbit Mitsie.
R. T. Jones (1975). Normal values for some biochemical constituents in rabbits. Laboratory Animals (1975) 9,143-147.
µg/dL -> nmol/L & ng/dL -> nmol/L conversion: Units Lab Triiodothyronine (T3) calculator & Thyroxine (total T4) calculator.

- R. T. Jones's older work is referenced by E. van Praag, Medirabbit and both editions of Textbook of Rabbit Medicine, 2e: Varga (2013), 1e: Frances Harcourt-Brown (2001)

See also